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<p>OPTIMA MR360 & BRIVO MR355</p><p>FULL SERVICE TRAINING REV 1.5</p><p>ATC MR INSTRUCTOR XIAO XIAO</p><p>GE ASIA TRAINING CENTER</p><p>Content</p><p>Module 1 - Course Introduction & Safety..............................................................1</p><p>Module 2 - System overview………………………………………………………………………….14</p><p>Module 3 - New User Interface and Software Operation……………………...65</p><p>Module 4 – Architecture & Hardware…………………………………………………………..87</p><p>Module 5 – Calibration & Diagnostics……………………………………………………….169</p><p>Lab Guide & Component Identification…………………………………………………...193</p><p>1</p><p>2</p><p>3</p><p>4</p><p>Excite HD training is a pre-requisite for this course. If you haven’t been trained</p><p>on Excite HD, it is mandatory to get the HD training before you will be able to</p><p>be successful in the SV course.</p><p>5</p><p>6</p><p>7</p><p>There are three types of safety hazards to be aware of with MR. Always</p><p>observe high voltage dangers and perform Lock Out / Tag Out (LOTO) safety</p><p>steps before working on any piece of MR equipment. Do not substitute a</p><p>shortcut process for LOTO. A shortcut that produced one set of desired results</p><p>on an older piece of equipment may not produce the same set of desired</p><p>results on the new piece of equipment.</p><p>Complete the required MR512 MR Magnet and Cryogen Safety course before</p><p>attempting to service a magnet or work with cryogens.</p><p>Note to instructors: You can embellish as you wish since you both use</p><p>different slides for safety in your classes.</p><p>8</p><p>Be sure to be cautious when installing or replacing anything in the magnet</p><p>room, especially in the 3.0T environment. Test items first for ferrous properties.</p><p>Never put your body between the magnet and anything that may be a ferrous</p><p>material.</p><p>The 3T magnetic field requires extreme caution. Be alert for ferrous materials</p><p>when performing replacement procedures in the scan room. Note that on 3T</p><p>systems, even non-ferrous tools are slightly ferrous! Follow all service</p><p>documentation procedures.</p><p>The System Pre-Installation manual shows magnetic field strengths at</p><p>different distances from the magnet</p><p>9</p><p>The portable GasWatch2 Oxygen sensor as pictured above - part number is</p><p>5111049</p><p>10</p><p>Due to the magnet top off you may have to sting the magnet and handle</p><p>dewars during this fill. The gas cylinders must be strapped down and when not</p><p>in use have their cap on, also be very careful of the dewars. In most cases, Air</p><p>Products or a cryogen contractor will take care of this task, but you should be</p><p>aware of this in case you need to perform it .</p><p>Frostbite:</p><p>•Distance and Time- Frostbite Protection</p><p>11</p><p>LOTO Service Documentation is Accessible via the Service Methods Website by</p><p>clicking on “Safety” and then the correct procedure name under “Lock Out Tag</p><p>Out”. Note that for SV, all LOTO procedures involving LOTO of the SYSTEMS</p><p>CABINET require shut down of the Simple OC first . This is because powering</p><p>down the Simple OC ensures correct soft power down of the Image Compute</p><p>Node. The ICN MUST be shut down via a soft power down in order to avoid</p><p>operating system corruption!</p><p>12</p><p>13</p><p>14</p><p>15</p><p>16</p><p>17</p><p>Compared to the HD system, SV changes lots of components.</p><p>• Air cooling system is replaced by water cooling system for RF amplifier and Gradient</p><p>amplifier.</p><p>• System cabinet, HFD cabinet and part of penetration panel are combined in one</p><p>compact cabinet.</p><p>• Components in the compact cabinet are new designed except for GP3, Term Server and</p><p>HUB</p><p>• Equipment in Operator room is simplified</p><p>• Fixed table with the express coil in the cradle will relieve the operator ’s labor for</p><p>changing coils</p><p>• Three parts in Magnet side kit are new designed for SV</p><p>18</p><p>19</p><p>20</p><p>If you refer to the MR Service Docs for</p><p>5364191-2EN - Optima MR360 / Brivo MR355 1.5T Service Methods>Replacement>Magnet</p><p>Enclosure>Magnet Enclosure Table of Contents</p><p>you will see the same diagram with clickable links for each component.</p><p>These links will take you to the procedures for removing and reinstalling the covers.</p><p>21</p><p>Refer to the service manual for detail procedure of replacement:</p><p>5364191-2EN - Optima MR360 / Brivo MR355 1.5T Service Methods>Replacement>Magnet</p><p>Enclosure>Magnet Enclosure Control Panels</p><p>SV, HDe, HDx Forward Production Control Panels:</p><p>• Same function as control panel in HD except for the appearance</p><p>• Now have words written next to the buttons</p><p>• Languages specific control panels are shipped with the Keyboard collectors in above-</p><p>mentioned systems</p><p>• May be removed independently</p><p>• Are secured with poppers and attached to hidden cables</p><p>• Be sure to follow all procedures in MR Service Documentation when removing any cover</p><p>• Note - Top Laser Light is now housed inside the top display panel. Use caution when</p><p>popping the panel off to adjust this laser so as not to trip the Emergency Stop</p><p>22</p><p>Important facts about the LPCA of SV:</p><p>• There is no head T/R switch. T/R switch is moved to the Quick disconnect of the Split head</p><p>coil and Quad knee coil.</p><p>• Port A is a coil interface for coils with and without preamps</p><p>• Each receive line has single input for coils with or without preamps. Preamp or non-</p><p>preamp path is controlled by shorting pins on Port A in the coil connector</p><p>• Head Tx RF is routed through the interface module, this is done to “tap-off” the head T/R</p><p>bias</p><p>• Head T/R bias is used for preamp protect switching in the interface module</p><p>• Multi Coil bias is added to the RF coax lines in the port connectors</p><p>• Bias is added to Port A in the Multicoil Interface Box</p><p>• RF input to preamp boards is routed though coax cable</p><p>23</p><p>Rear Pedestal is newly designed.</p><p>1. The 16ch Switch is not used in SV system, which is functionally replaced by Mega Switch</p><p>located on the Magnet Side kit.</p><p>2. LED Power Box is introduced, which is the power supply for SRI, PAC, Patient alignment</p><p>laser and bore light.</p><p>3. Dummy load is moved to rear pedestal from the LPCA.</p><p>4. Hybird, TNS antenna, motor, encoder assembly, encoder box and communication box</p><p>have no change. They are same as the parts in HD system.</p><p>24</p><p>• Magnet side kit contains Voltage Regulator Box, Mega Switch, RRX, cables and base plate.</p><p>It is mounted on the left side of the magnet through insulating board, and a ground wire</p><p>is connected between base plate and system cabinet.</p><p>• Voltage Regulator Box and Mega SW are both newly designed components. Regulator</p><p>Box regulates the DC power from DCPS for Mega SW & RRX. Mega SW combines the</p><p>function of 8ch switch, MUX, UTNS and receiver. RRX used in SV system is 8 channels.</p><p>• Mega Switch select different input RF signal, and amplifies them according to R1 value,</p><p>and transform the center frequency of RF signal to 16MHz, then send them to RRX. RRX</p><p>converts the analog RF signal to digital signal and transfer them to VRF in ICN by optical</p><p>fiber.</p><p>25</p><p>• Fixed table has no Dock and Undock function like detachable table. Up and down of fixed</p><p>table are implemented by actuator, which is driven by electrical motor. The table can go</p><p>up and down very smoothly with very low noise compared to the detachable table. And</p><p>there is no other mechanism to drive fixed table up and down.</p><p>• The control box for fixed table is newly designed.</p><p>• The longitudinal movement of the cradle is driven by longitudinal motor located in the</p><p>rear pedestal. It is same as HD.</p><p>• The cover of the cradle is reinforced to protect the embedded Express PA coil from</p><p>damage. The cradle with the Express PA coil moves the patient into and out of the</p><p>magnet bore.</p><p>26</p><p>Express coil consists of three parts:</p><p>1) HNA, functionally similar to NV coil;</p><p>2) PA, functionally similar to CTL coil;</p><p>3) AA, functionally similar to 8Ch body array or 4Ch torso coil.</p><p>HNA and AA are removable coils that connected to Port A in LPCA. PA coil is embedded in</p><p>the cradle of the fixed table, which can be moved in and out of the magnet bore with the</p><p>cradle. The interface board of PA coil located on the bottom of the cradle. Two cables</p><p>always connect the PA interface</p><p>the suitable mode according to the landmark position. This function is only</p><p>available for Express coil, and not all the scan modes of the Express coil are compatible</p><p>with this function. This table shows all the available modes.</p><p>• This two pictures show the procedure to use this function. In step 4, after selection of the</p><p>automatic coil selection, the background color of one configuration in the right area will</p><p>turn yellow, which means this mode has been selected automatically.</p><p>167</p><p>Please refer to the service method 5364191-2EN 'Replacement / Fix Table / Express Coil:</p><p>Posterior Array Coil Replacement without removing Fixed Table' for the detailed procedure.</p><p>168</p><p>169</p><p>170</p><p>171</p><p>It is important during new installations and upgrades, to verify that your IP addresses are</p><p>always up-to-date (both Host IP and MGD IP). If any changes have been made to an IP</p><p>address, you must reconfigure the the ICN.</p><p>172</p><p>173</p><p>There are some steps during the installation of the MR system that must be done but for</p><p>which the system has no “machine” data. For these items the system will rely on the user to</p><p>check off the items as they are complete and click [Submit].</p><p>For all calibrations that have machine data, the tool can be launched the same way it was</p><p>launched in previous versions of MR software – by clicking [Click here to start this tool]. The</p><p>tool will launch in a separate window. After completion of the tool, the user must click</p><p>[Check Status].</p><p>After clicking [Submit] or [Check Status], the ICW will check the data files. If it finds a passed</p><p>calibration or a completed checklist, then it will allow the user to advance to the next</p><p>calibrations in the flow. If it detects a failure or an incomplete task, it will turn the name of</p><p>the tool RED in the left window of the ICW and no new calibrations will become available</p><p>until that step has been completed successfully.</p><p>174</p><p>175</p><p>How to read this matrix: The same tasks calibrations are listed along the top and along the</p><p>side. The ideal order of task / calibration completion is from the top to the bottom. Anything</p><p>with no red squares to the right has no pre-dependencies, therefore it can be run at any time.</p><p>If there are red squares to the right of any of the tasks/calibrations, then the</p><p>tasks/calibrations indicated in the vertical column(s) associated with each red square must</p><p>be completed successfully before that task/calibration becomes available.</p><p>This matrix is the basis for the logic of the ICW</p><p>176</p><p>Every time the user clicks on the “Calibration” tab of the CSD, as long as there is a service</p><p>key plugged in, the ICW will be the only link available. Once all steps in Install Mode have</p><p>been successfully completed, Maintenance Mode becomes available.</p><p>In Maintenance Mode, any time you click on a calibration it will alert you to the possibility of</p><p>pre- and post- dependencies. Choosing [Yes] acknowledges understanding of these</p><p>dependencies and pre-dependencies will be de-bolded. Clicking [No] de-selects calibration.</p><p>Clicking [More] shows the Calibration Dependency Matrix.</p><p>177</p><p>This matrix is the basis for the logic of the ICW in Maintenance Mode. If you click [More] on</p><p>the pop-up from the previous slide, this is the matrix that you will see. It is good to become</p><p>familiar with how to read this matrix so that when you perform re-calibrations at sites you</p><p>will understand what it means.</p><p>Maintenance Mode Dependency Matrix:</p><p>How to read this matrix: The same tasks are listed vertically and horizontally. In the column</p><p>on the left find the calibration that you wish to run. To the right of that calibration name,</p><p>follow the line horizontally until you reach the yellow square. Any task vertically directly</p><p>above the yellow square is a pre-dependency, and any task vertically directly below the</p><p>yellow square is a post-dependency.</p><p>Post-dependencies are more important than pre-dependencies. For troubleshooting</p><p>purposes, if user is about to perform a certain calibration (or task), it would be beneficial to</p><p>see what pre-dependencies are related to that calibration and consider performing them. If</p><p>pre-dependencies are not run, the system will not be negatively affected. Post-</p><p>dependencies, however, are very important. For example, if Grafidy is run, LVShim, Gradcal,</p><p>EPT and Probe values may have changed. Each one of these calibrations should be run</p><p>after the completion of Grafidy because they are Post-Dependencies of that cal.</p><p>178</p><p>179</p><p>Before using the software to do the LVShim, LVshim localizer scan must be done to assure</p><p>the phantom is in the center.</p><p>180</p><p>Insert appropriate DQA-III Phantom into head coil. Verify phantom is inserted into head coil.</p><p>Also verify phantom is not rotated within the head coil.</p><p>The correct phantom type, position and landmark are all critical to successful operation of</p><p>the DQA-II tool.</p><p>If there is a failure during the DQA-II tool, the “Actions Required” window will give details as</p><p>to the likely reason for the error. If specific recommendations are not available in the</p><p>“Actions Required” window, the FE will be pointed to Service Documentation.</p><p>181</p><p>This new style 6-channel Grafidy fixture couldn’t be easier to use! It is simply a “plug and go”</p><p>tool, meaning that when it is taken out of the box all that is required is that the user attaches</p><p>the adaptor cable to the fixture and plugs it into the LPCA A-Port connector, unfolds the</p><p>wings of the fixture, landmarks and begins the Grafidy calibration. With the new fixture, it is</p><p>not necessary to connect cables from the fixture through the pen panel, nor is it necessary</p><p>to attach power supplies to the Systems cabinet or attenuators to the RF Amplifier. In</p><p>addition, once the landmark is established, no further user interaction with the Grafidy</p><p>fixture is required. This new 6-channel Grafidy fixture will be available in both 1.5T and 3.0T</p><p>versions and will be available as a service tool for all SV systems. Previous versions of</p><p>Grafidy fixtures will not work with SV software, and at this point the new 6-channel Grafidy</p><p>fixture will only function on systems running after 14x software.</p><p>182</p><p>Along with the new 6-channel Grafidy fixture defined in the previous slide, improvements</p><p>have been made to the Grafidy calibration’s data acquisition and software. The tool first</p><p>verifies proper fixture placement and signal from all channels. It then acquires data</p><p>simultaneously from all channels, thus reducing calibration time. With the new fixture and</p><p>new Grafidy software, Grafidy calibrations take about 45 minutes on BRM and CRM systems</p><p>and about 1.5-2 hours on TRM systems. In addition, the user interface has been modified.</p><p>In Manual Mode, the UI has changed from “coil placement” centered to “applied gradient”</p><p>because now one gradient can be pulsed to get data from all six coils</p><p>instead of just two as in the previous Grafidy releases. For 1.5T, as compared to previous</p><p>Grafidy, with the new software, using data from all six coils together allows for more</p><p>accurate B0 component. Also, after changing calibration factors, the UI does not allow the</p><p>user to exit without collecting data, and the number of significant digits displayed has been</p><p>reduced to make the values more readable. Grafidy can now compensate very long time</p><p>constants more accurately. The new Grafidy software allows for much better compensation</p><p>of the initial part of the eddy current curve in long mode because of three things: 1) there is</p><p>an additional time constant used 2) all data is now used (as opposed to data starting at</p><p>2.5msec before) and 3) software allows for negative amplitude.</p><p>183</p><p>184</p><p>185</p><p>186</p><p>The report file is stored in /export/home/signa/bin.</p><p>187</p><p>188</p><p>189</p><p>The Multicoil Receive Chain Tool provides a means of diagnosing problems in Multicoil</p><p>Receive (MCR) chain hardware, without use of coils. The tool sends signals down the</p><p>individual paths to isolate specific channels in the receive chain. The</p><p>tool’s Graphical User</p><p>Interface (GUI) guides the user through the various steps involved in running the tool and</p><p>troubleshooting the problem. The GUI has built-in instructions and detailed setup instructions,</p><p>troubleshooting flowcharts and documents that will help facilitate rapid diagnosis of the</p><p>problem. There are two levels of tests that can be run using the MCR III tool: Default and</p><p>Individual. Once you've decided to use MCR III tool, determine which level of test your</p><p>situation requires. The default and port-specific levels of tests offer increased user-friendly</p><p>automation that is been omitted from the individual tests by design. Therefore, it is</p><p>imperative to identify which level of tests you need to perform and then follow the</p><p>instructions for that specific level.</p><p>1) Port A Default Tests</p><p>This test must be passed during the MR installation.</p><p>In most scenarios, this is the first test that should be run when using the MCR tool.</p><p>If this test fails, individual tests can be run to further isolate the failing component.</p><p>2) Port A Individual Tests</p><p>These tests are designed to run after the default test indicates a failure.</p><p>3) Express Coil Test For Fixed Table</p><p>This test must be passed during the MR installation.</p><p>190</p><p>The RF and DC cables for Express PA Coil - Cradle mode are shipped with the system.</p><p>191</p><p>Optima MR360 / Brivo MR355</p><p>GEHC-TECH-MD33392427</p><p>MR5047</p><p>Service Training</p><p>Lab Guide</p><p>Rev Number: J</p><p>MyWorkshop Book Number: 51232</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 1 of 24</p><p>Table of Contents</p><p>TABLE OF CONTENTS.......................................................................................................................... 1</p><p>1. SYSTEM GEOGRAPHY LAB .............................................................................................................. 2</p><p>2. OPERATION LAB .............................................................................................................................. 4</p><p>3. CAN LINK LAB ................................................................................................................................. 5</p><p>4. DVMR LINK LAB .............................................................................................................................. 7</p><p>5. ICN DIAGNOSTIC LAB ................................................................................................................. 11</p><p>6. SIMPLE OC COMPUTER AND DUST FILTER REPLACEMENT LAB .......................................... 13</p><p>7. COOLANT PUMPOUT LAB .......................................................................................................... 14</p><p>8. XFD REPLACEMENT LAB ............................................................................................................. 15</p><p>9. CABINET MONITOR LAB ............................................................................................................. 17</p><p>10. FIXED-TABLE ACTUATOR LAB ................................................................................................. 19</p><p>11. FIXED-TABLE INSTALLATION & ADJUSTMENT LAB ............................................................. 20</p><p>12. EXPRESS COIL LAB .................................................................................................................... 22</p><p>13. MCR III TOOL LAB ...................................................................................................................... 23</p><p>14. MODIFIED CALIBRATION TOOL LAB ...................................................................................... 24</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 2 of 24</p><p>1. System Geography Lab</p><p>Description: The purpose of this lab is to investigate and identify the major</p><p>components of the MR360 / MR355 System.</p><p>Time Required: 1 Hour</p><p>Learning</p><p>Objective(s): Identify the major subsystems and functions of the SV system</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures – 5364191, on disk, or as loaded onto</p><p>system computer</p><p>Tools Required: Handout as provided</p><p>Safety</p><p>Considerations:</p><p>Follow all LOTO procedures. They are posted in the lab as well as</p><p>incorporated as subset of documented procedure.</p><p>Steps:</p><p>1. System Power-Down</p><p>Follow software and power shutdown procedure in Service</p><p>Methods 5364191</p><p>a. Shut down applications and turn system power off.</p><p>2. System Components Geography</p><p>Using the handout provided:</p><p>a. Match the subsystems and component names to the boxes</p><p>indicating their location. Open cabinet doors for interior</p><p>identification</p><p>b. Remove covers as needed, for interior identification</p><p>3. For Simple Operator Console</p><p>a. Remove cover and expose right side components to view</p><p>location.</p><p>Do not disconnect any cabling</p><p>4. For Magnet</p><p>a. Remove cover and expose left side components to view</p><p>locations</p><p>Do not disconnect any cabling</p><p>5. For Penetration Panel</p><p>a. Remove access panel from scan room side to view locations.</p><p>Do not disconnect any cabling</p><p>6. For Rear Pedestal</p><p>a. View component locations</p><p>Do not disconnect any cabling</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 3 of 24</p><p>7. For Fixed Table</p><p>a. View component locations</p><p>Do not disconnect any cabling</p><p>8. For Water Chiller</p><p>a. View component locations</p><p>Do not disconnect any cabling</p><p>9. System Power-On</p><p>a. Follow power and software restoration procedure in Service</p><p>Methods 5364191</p><p>If subsequent labs are to be performed – you may be instructed to</p><p>leave covers off. Please ensure covers are properly and safely stored</p><p>to avoid trip hazards.</p><p>Review:</p><p>Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 4 of 24</p><p>2. Operation Lab</p><p>Description: The purpose of this lab is to understand basic operation procedures</p><p>of the MR355/360 scanner.</p><p>Time Required: 2 Hour</p><p>Learning</p><p>Objective(s):</p><p> Operate the system, as outlined in the service documentation.</p><p> Verify system settings and performance.</p><p>Support Materials</p><p>Required:</p><p> MR355/360 system capable of being powered up to normal</p><p>scanning condition.</p><p> Most recent revision of MR360/355 Operator Manual, on disk,</p><p>online, or as loaded onto system computer.</p><p>(http://3.28.123.26:8000/mr/OPEMAN/HDsv/M3/index.htm)</p><p>Tools Required: Laptop</p><p>Safety</p><p>Considerations:</p><p>Follow all LOTO procedures as required. They are posted in the lab</p><p>as well as incorporated as subset of documented procedure.</p><p>Steps:</p><p>1. Phantom Preparation</p><p>a. Using documented procedure in MR355/360 Operator</p><p>Manual: Patient Preparation. Set up the phantom for</p><p>scanning.</p><p>2. Prescan</p><p>a. Using documented procedure in MR355/360 Operator</p><p>Manual: Prescan. Start Auto Prescan and Manual Prescan.</p><p>3. Scan</p><p>a. Using documented procedure in MR355/360 Operator</p><p>Manual: Scan. Start to scan.</p><p>4. View</p><p>a. Using documented procedure in MR355/360 Operator</p><p>Manual: Viewer. View the images</p><p>5. Save / Restore images</p><p>a. Using documented procedure in MR355/360 Operator Manual:</p><p>Img Mgmt Data Apps. Save and restore the images</p><p>6. Add Remote Host</p><p>a. Using documented procedure in MR355/360 Operator Manual:</p><p>Img Mgmt Archive Network. Add remote host</p><p>7. Configure / Add Film Printer</p><p>a. Using documented procedure in MR355/360 Operator Manual:</p><p>Film. Add film printer</p><p>Review:</p><p>Questions for instructor:</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 5 of 24</p><p>3. CAN link Lab</p><p>Description: This lab will familiarize the student with the CAN Link Diagnostic</p><p>Time Required: 1 Hour</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation</p><p> Understand how the CAN Link works in SV system</p><p> Perform the CAN Link diagnostic and issue isolation procedure</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures</p><p>– 5364191 on disk, or as loaded onto</p><p>system computer. Refer to CAN Link Diagnostic procedure.</p><p>(http://3.28.123.26:8000/mr/cdrom/5364191-</p><p>2EN/root/data/Signa_EXCITE/content/1084467.htm)</p><p>Tools Required: Standard hand tools</p><p>Safety</p><p>Considerations:</p><p>Follow all LOTO procedures. They are posted in the lab as well as</p><p>incorporated in the documented procedures</p><p>Steps:</p><p>1. CAN Link Diagnostic</p><p>Use documented procedure in Direction 5364191:</p><p>Troubleshooting / Diagnostics / System Function / Patient</p><p>Handling / CAN Link Diagnostic</p><p>OR</p><p>Troubleshooting / Diagnostics / Hardware Location / Misc /</p><p>CAN Link Diagnostic</p><p>a. Perform CAN Link Diagnostic</p><p>2. Refer to the following CAN link diagram to perform the test:</p><p>a. Remove the terminator from cabinet monitor</p><p>b. Perform step 1 and record the test result</p><p>_______________________________________________________</p><p>c. Remove the connector J19 on the front panel of SRFD3 and</p><p>install the terminator on the front panel</p><p>d. Perform step 1 and record the test result</p><p>_______________________________________________________</p><p>d. Remove the connector J2 on the front panel of Driver Module</p><p>Lite and install the terminator on the front panel</p><p>e. Perform step 1 and record the test result</p><p>_______________________________________________________</p><p>f. Restore the connectors J2 on Driver Module Lite and terminator</p><p>on J11 of Cabinet Monitor</p><p>i. Remove connectors J18 and J19 from SRFD3, and connect them</p><p>together</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 6 of 24</p><p>j. Perform step 1 and record the test result</p><p>_______________________________________________________</p><p>k. Remove connectors J1 and J2 from PHPS Lite2, and connect</p><p>them together</p><p>l. Perform step 1 and record the test result</p><p>_______________________________________________________</p><p>m. Restore all the cables</p><p>Questions:</p><p>1. What is the function of force reset button?</p><p>________________________________________________________</p><p>2. What conclusion can be made according to step 2?</p><p>_______________________________________________________</p><p>_______________________________________________________</p><p>______________________________________________________</p><p>Review:</p><p>Questions for instructor:</p><p>_______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 7 of 24</p><p>4. DVMR Link Lab</p><p>Description: This lab will familiarize the student with the DTX board level</p><p>diagnostics and DTX to RRX data path</p><p>Time Required: 2 Hour</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation and perform board and data</p><p>path diagnostics.</p><p> Identify error messages associated with certain failure modes</p><p> Understand the real time diagnostic function of DVMR link</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures – 5364191 on disk, or as loaded onto</p><p>system computer.</p><p>Tools Required: Standard hand tools</p><p>Safety</p><p>Considerations:</p><p>Follow all LOTO procedures. They are posted in the lab as well as</p><p>incorporated in the documented procedures</p><p>Steps: 1. DTX Board Level Diagnostics</p><p>Use documented procedure in Direction 5364191:</p><p>Troubleshooting/Diagnostics/System Function/RF/Transmitter</p><p>Diagnostics</p><p>a. Perform DTX board Level Diagnostics</p><p>b. Record results: ____________________________________</p><p>c. Place the RF Enable switch in the front panel of exciter in the</p><p>Disable (Down) position</p><p>d. Perform DTX board Level Diagnostics</p><p>e. Record results: ____________________________________</p><p>f. Use command mgd_term to open SCP and AGP terminal</p><p>g. Do the TPS Reset and check what will happen</p><p>h. Restore the RF Enable switch to Up position</p><p>2. RF Calib</p><p>Use documented procedure in Direction 5364191:</p><p>Troubleshooting/Diagnostics/System Function/RF/Transmitter</p><p>Diagnostics</p><p>a. Perform RF Calib</p><p>b. Record results: ____________________________________</p><p>c. Disconnect RUN M2502 from J107 of Mega Switch</p><p>d. Perform RF Calib</p><p>e. Record results: ____________________________________</p><p>f. Use command mgd_term to open SCP and AGP terminal</p><p>g. Do the TPS Reset and check what will happen</p><p>h. Restore the cable</p><p>i. Disconnect RUN M1514 from J105 of Mega Switch</p><p>j. Perform RF Calib</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 8 of 24</p><p>k. Record results: ____________________________________</p><p>l. Use command mgd_term to open SCP and AGP terminal</p><p>m. Do the TPS Reset and check what will happen</p><p>n. Restore the cable</p><p>o. Disconnect RUN M1515 from J103 of Mega Switch</p><p>p. Perform RF Calib</p><p>q. Record results: ____________________________________</p><p>r. Use command mgd_term to open SCP and AGP terminal</p><p>s. Do the TPS Reset and check what will happen</p><p>t. Restore the cable</p><p>3. DTX -> RRX DP</p><p>Use documented procedure in Direction 5364191:</p><p>Troubleshooting/Diagnostics/System Function/RF/Transmitter</p><p>Diagnostics</p><p>a. Perform DTX -> RRX DP Diagnostics</p><p>b. Record results: ____________________________________</p><p>c. Disconnect RUN M1513 from J106 of Mega Switch</p><p>d. Perform DTX -> RRX DP Diagnostics</p><p>e. Record results: ____________________________________</p><p>f. Restore the cable</p><p>4. Observe Error Message</p><p>Refer to the following diagram</p><p>a. Record the status of LEDs on the IRF3 board and RRX</p><p>b. Disconnect IRF3 J8</p><p>c. Note the status of LEDs on the IRF3 board and RRX</p><p>d. Record error code: ____________________________________</p><p>e. Restore IRF3 J8</p><p>f. Disconnect IRF3 J11</p><p>g. Note the status of LEDs on the IRF3 board and RRX</p><p>J21</p><p>To VRF</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 9 of 24</p><p>h. Record error code: ____________________________________</p><p>i. Restore IRF3 J11</p><p>j. Disconnect IRF3 J13</p><p>k. Note the status of LEDs on the IRF3 board and RRX</p><p>l. Record error code: ____________________________________</p><p>m. Restore IRF3 J13</p><p>n. Disconnect RRX J4</p><p>o. Note the status of LEDs on the IRF3 board and RRX</p><p>p. Record error code: ____________________________________</p><p>q. Restore RRX J4</p><p>r. Disconnect Exciter J21</p><p>s. Note the status of LEDs on the IRF3 board and RRX</p><p>t. Record error code: ____________________________________</p><p>u. Restore Exciter J21</p><p>5. IRF3 Wide Coverage Diagnostics</p><p>Use documented procedure in Direction 5364191:</p><p>Troubleshooting/Diagnostics/System Function/RF/ IRF3 Wide</p><p>Coverage Diagnostics</p><p>a. Perform IRF3 Wide Coverage Diagnostics</p><p>b. Replace the Fiber-optic Transceiver on IRF3 J10 with a broken</p><p>one, and perform IRF3 Wide Coverage Diagnostics</p><p>c. Record results: ____________________________________</p><p>d. Restore the good Fiber-optic Transceiver</p><p>e. Replace the Fiber-optic Transceiver on IRF3 J11 with a broken</p><p>one, and perform IRF3 Wide Coverage Diagnostics</p><p>f. Record results: ____________________________________</p><p>g. Restore the good Fiber-optic Transceiver</p><p>h. Replace the Fiber-optic Transceiver on IRF3 J13 with a broken</p><p>one, and perform IRF3 Wide Coverage Diagnostics</p><p>i. Record results: ____________________________________</p><p>j. Restore the good Fiber-optic Transceiver</p><p>k. Replace the Fiber-optic Transceiver on Exciter J19 with a</p><p>broken one, and perform IRF3 Wide Coverage Diagnostics</p><p>l. Record results: ____________________________________</p><p>m. Restore the good Fiber-optic Transceiver</p><p>n. Replace the Fiber-optic Transceiver on RRX J4 with a broken</p><p>one, and perform IRF3 Wide Coverage Diagnostics</p><p>o. Record results: ____________________________________</p><p>p. Restore the good Fiber-optic Transceiver</p><p>q. Replace the Fiber-optic Transceiver on RRX J5 with a broken</p><p>one, and perform IRF3 Wide Coverage Diagnostics</p><p>r. Record results: ____________________________________</p><p>s. Restore the good Fiber-optic Transceiver</p><p>t. Replace the Fiber-optic Transceiver on VRF with a broken one,</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 10 of 24</p><p>and perform IRF3 Wide Coverage Diagnostics</p><p>u. Record results: ____________________________________</p><p>v. Restore the good Fiber-optic Transceiver</p><p>Questions: 1. What diagnostics are performed during IRF3 Wide Coverage</p><p>Diagnostic?</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 11 of 24</p><p>5. ICN Diagnostic Lab</p><p>Description: This lab will familiarize the student with the function of three</p><p>ethernet cables connected to ICN.</p><p>Time Required: 1.5 Hour</p><p>Learning</p><p>Objective(s): Understand the function of NET MGT, Port2 and Port 3 of ICN</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures – 5364191 on disk, or as loaded onto</p><p>system computer. Refer to ICN Reconfiguration procedure.</p><p>Tools Required: Standard hand tools</p><p>Safety</p><p>Considerations:</p><p>Follow all LOTO procedures as required. They are posted in the lab</p><p>as well as incorporated as subset of documented procedure.</p><p>Steps:</p><p>1. Understanding Ethernet cables function</p><p>a. Open CShell window and input more /etc/hosts</p><p>b. Record the IP address of icn1 vre and icn1_bmc</p><p>c. Start a new Exam to scan</p><p>d. Disconnect the cable connected to NET MGT port of the ICN</p><p>e. Open a C-shell window and ping icn1 and icn1-bmc.</p><p>f. Start to scan</p><p>g. Disconnect the cable connected to Port2 of the ICN</p><p>h. Ping icn1 and icn1-bmc</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 12 of 24</p><p>i. Start to scan</p><p>j. Restore the disconnected cable to Port2 of the ICN</p><p>k. Disconnect the cable connected to Port3 of the ICN</p><p>l. Ping icn1 and icn1-bmc</p><p>m. Start to scan</p><p>n. Disconnect the cable connected to Port2 of the ICN again</p><p>o. Ping icn1 and icn1-bmc</p><p>p. Start to scan. Observe what will happen and record error</p><p>message</p><p>______________________________________________________</p><p>q. Restore all the disconnected cables</p><p>Questions:</p><p>1. What are IP addresses of the NET MGT Port, Port2 and Port3?</p><p>_______________________________________________________</p><p>2. What data are transferred thru NET MGT Port, Port2 and Port3?</p><p>_______________________________________________________</p><p>Review:</p><p>Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 13 of 24</p><p>6. Simple OC Computer and Dust Filter Replacement Lab</p><p>Description: This lab will familiarize the student with the procedure for replacing</p><p>the OC host computer</p><p>Time Required: 1.5 Hour</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation</p><p> Remove and replace Simple OC computer</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures – 5364191 on disk, or as loaded onto</p><p>system computer. Refer to Simple OC and Dust Filter replacement</p><p>procedure.</p><p>(http://3.28.123.26:8000/mr/cdrom/5364191-</p><p>2EN/root/data/Signa_EXCITE/content/1106757.htm)</p><p>Tools Required: Standard hand tools</p><p>Safety</p><p>Considerations:</p><p>Follow all LOTO procedures. They are posted in the lab as well as</p><p>incorporated in the documented procedures</p><p>Steps:</p><p>1. Simple OC Computer Replacement</p><p>Use documented procedure in Direction 5364191:</p><p>Replacement /Operator Workspace Replacement / Computer</p><p>Replacement</p><p>a. Perform steps 1 – 12</p><p>b. DO NOT remove the disk drive!</p><p>2. Dust Filter Replacement</p><p>Use documented procedure in Direction 5364191:</p><p>Replacement /Operator Workspace Replacement / Dust Filter</p><p>Replacement</p><p>a. Perform Dust Filter replacement</p><p>Review:</p><p>Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 14 of 24</p><p>7. Coolant Pumpout Lab</p><p>Description: This lab will familiarize the student with the procedure to pump out</p><p>coolant from SRFD3 and XFD in SV system.</p><p>Time Required: 0.5 hour</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation</p><p> Understand the importance of coolant pumpout before</p><p>components replacement</p><p> Practice the correct procedure of coolant pumpout</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures – 5364191 on disk, or as loaded onto</p><p>system computer. Refer to Coolant Pumpout procedures.</p><p>(http://3.28.123.26:8000/mr/cdrom/5364191-</p><p>2EN/root/data/Signa_EXCITE/content/1093487.htm)</p><p>Tools Required: Coolant Tank, Water tray, Hand Pump and Standard hand tools</p><p>Safety</p><p>Considerations:</p><p> Follow all LOTO procedures as required. They are posted in the lab</p><p>as well as incorporated as subset of documented procedure.</p><p> After draining, the drain valves must be closed. Check that drain</p><p>valves are closed.</p><p> Avoid coolant splashing into the electronics.</p><p>Steps: 1. Coolant pumpout</p><p>Use documented procedure in Direction 5364191:</p><p>Replacement / System Cabinet Replacement / XFA and XFD-PS</p><p>Replacement / XFD-PS / 3 Procedure / 3. Drain the coolant</p><p>a. Perform the draining operation</p><p>Questions: 1. What is the use of water tray?</p><p>__________________________________________________________</p><p>2. Why the coolant in the water-cooling components must be drained</p><p>when replacement?</p><p>__________________________________________________________</p><p>3. What action should be executed before restoring the drain hose to</p><p>drip pan?</p><p>__________________________________________________________</p><p>Review: Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 15 of 24</p><p>8. XFD Replacement Lab</p><p>Description: This lab will familiarize the student with the procedure to replace the</p><p>XFA and XFD-PS</p><p>Time Required: 2 hours</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation</p><p> The hoist tool</p><p> Practice the correct procedure of XFD replacement</p><p> Know how to pull out the XFD in case XFD can’t be pulled out</p><p>according to the normal procedure</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures – 5364191 on disk, or as loaded onto</p><p>system computer. Refer to XFD replacement procedures.</p><p>(http://3.28.123.26:8000/mr/cdrom/5364191-</p><p>2EN/root/data/Signa_EXCITE/content/1084772.htm)</p><p>Tools Required: Hoist tool, Hoist bracket for XFD, Standard hand tools and DVM.</p><p>Safety</p><p>Considerations:</p><p> Follow all LOTO procedures as required. They are posted in the lab</p><p>as well as incorporated as subset of documented procedure.</p><p> Discharging the super capacitor by waiting for at least 15 minutes</p><p>after system power off for XFD replacement, or at least 30 minutes</p><p>for removing power panel assy.</p><p> The weight of XFD-PS is 87kg. Take care when replacement.</p><p> The left top of XFD-PS will be over 40oC in ten minutes after</p><p>discharging. Take care when replacement.</p><p>Steps: 1. XFD replacement</p><p>Use documented procedure in Direction 5364191:</p><p>Replacement / System Cabinet Replacement / XFA and XFD-PS</p><p>Replacement / XFD-PS</p><p>a. Perform the XFD-PS replacement</p><p>2. Alternative way to pull out the XFD</p><p>Notice: Only use this method in case XFD can’t be pulled out</p><p>according to the normal procedure</p><p>a. Perform XFD Power Panel Assy removal by using documented</p><p>procedure in Direction 5364191:</p><p>Replacement / System Cabinet Replacement / Cabinet Rear</p><p>Panel / XFD Power Panel Assy</p><p>b. Perform the XFD-PS replacement</p><p>Questions: 1. What is the use of SW1 in the front panel of XFD-PS?</p><p>__________________________________________________________</p><p>2. What will happen when power on XFD-PS if the SW1 isn’t turned</p><p>back to operation position?</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 16 of 24</p><p>__________________________________________________________</p><p>3. What should be checked before pushing into the XFD-PS?</p><p>__________________________________________________________</p><p>4. What is the correct order of removing the terminal of power panel?</p><p>__________________________________________________________</p><p>5. What should</p><p>be checked before power on the system?</p><p>__________________________________________________________</p><p>Review: Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 17 of 24</p><p>9. Cabinet Monitor Lab</p><p>Description: This lab will familiarize the student with the functions of the Cabinet</p><p>Monitor and how to troubleshoot water leak in SV system.</p><p>Time Required: 1 hour</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation</p><p> Perform cabinet monitor functional check</p><p> Practice how to measure the sensor of water flow</p><p> Know how to isolate trouble with SF checker</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures 5364191 on disk, or as loaded onto</p><p>system computer. Refer to Cabinet Monitor functional check.</p><p>Tools Required: SF checker, DVM and Standard hand tools</p><p>Safety</p><p>Considerations:</p><p>Follow all LOTO procedures. They are posted in the lab and</p><p>incorporated in the documented procedures</p><p>Steps:</p><p>1. Cabinet Monitor Functional Check</p><p>Use documented procedure in Direction 5364191:</p><p>Troubleshooting / Troubleshooting Steering Guide / Water Leak</p><p>Troubleshooting / 1 Overview / Cabinet Monitor Functional</p><p>Check</p><p>a. Perform Cabinet Monitor Functional Diagnostic</p><p>b. Disconnect white connector on the rear panel of LCS or MCS,</p><p>then perform step a to check if any error happens</p><p>c. Restore the white connector</p><p>d. Measure the resistance between pin1 and pin4 of LCS or MCS</p><p>when they power on or power off</p><p>e. Disconnect connector J3 on the cabinet monitor. Observe what</p><p>will happen and record the error message</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 18 of 24</p><p>f. Install the SF checker to J3 on the cabinet monitor. Observe</p><p>what will happen</p><p>g. Remove the SF checker and restore connector J3</p><p>h. Simulate leakage on the Leak Sensors3. Observe what will</p><p>happen and record the error message</p><p>i. Simulate leakage on the Leak Sensor2. Observe what will happen</p><p>and record the error message.</p><p>Questions:</p><p>1. Is there any difference of the diagnostic result between step 1.a</p><p>and step1.b? How to explain it?</p><p>__________________________________________________________</p><p>2. What kind of switch is the sensor of water flow?</p><p>__________________________________________________________</p><p>3. How the cabinet monitor identifies three status of leak sensor:</p><p>Disconnected, normal and leakage detected?</p><p>__________________________________________________________</p><p>Review:</p><p>Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>__________________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 19 of 24</p><p>10. Fixed-Table Actuator Lab</p><p>Description: This lab will step the student through the procedure of replacing the</p><p>table actuator</p><p>Time Required: 2 Hours</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation</p><p> Remove and reinstall the table actuator</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures – 5364191 on disk, or as loaded onto</p><p>system computer. Refer to Replacement/Fix Table/Table Electrical</p><p>Actuator.</p><p>(http://3.28.123.26:8000/mr/cdrom/5364191-</p><p>2EN/root/data/Signa_EXCITE/content/1100957.htm)</p><p>Tools Required: Standard non-magnetic hand tools</p><p>Safety</p><p>Considerations:</p><p>Follow all LOTO procedures. They are posted in the lab and</p><p>incorporated in the documented procedures</p><p>Steps:</p><p>1. Table Electrical Actuator Replacement</p><p>Follow the documented procedure in Direction 5364191.</p><p>Warning: The table must be removed from the</p><p>magnet room for this procedure.</p><p>Continue to Fixed Table Adjustment Lab once the table has been</p><p>remounted to the magnet</p><p>Questions:</p><p>1. What method is used to align the mounting screw holes?</p><p>__________________________________________________</p><p>Review:</p><p>Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 20 of 24</p><p>11. Fixed-Table Installation & Adjustment Lab</p><p>Description: This lab will familiarize the student with the adjustments needed to</p><p>align the table to the gantry and insure all safety/interlock</p><p>mechanisms are operational</p><p>Time Required: 2 Hour</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation</p><p> Dock Frame Installation</p><p> Level table and adjust top height</p><p> Check and adjust lock and latch adjustments</p><p> Check and adjust cradle emergency latch</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures – 5364191 on disk, or as loaded onto</p><p>system computer.</p><p>Tools Required: Standard non-magnetic hand tools</p><p>Safety</p><p>Considerations:</p><p>Follow all LOTO procedures. They are posted in the lab and</p><p>incorporated in the documented procedures</p><p>Steps: 1. Dock Frame Installation</p><p>Use documented procedure in Direction 5364191:</p><p>Installation / Guided Mechanical Install Flow for Optima MR360</p><p>/ Brivo MR355 / Illustration 2: 1st day / Dock Frame Assy</p><p>(http://3.28.123.26:8000/mr/cdrom/5364191-</p><p>2EN/root/data/Signa_EXCITE/content/1097184.htm)</p><p>a. Perform Dock Frame Installation Procedure</p><p>2. Top Height Adjustment</p><p>Use documented procedure in Direction 5364191:</p><p>Adjust/Cals/ Fixed Table / TOP HEIGHT ADJUSTMENT</p><p>a. Perform Procedure steps 1 - 7</p><p>3. Cradle Side Lock Adjustment</p><p>Use documented procedure in Direction 5364191:</p><p>Adjust/Cals/ Fixed Table / CRADLE SLIDE LOCK ADJUSTMENT</p><p>a. Perform Procedure steps 1 - 8</p><p>4. Cradle Guide Latch</p><p>Use documented procedure in Direction 5364191:</p><p>Adjust/Cals/ Fixed Table / CRADLE GUIDE RAIL LATCH</p><p>ADJUSTMENT</p><p>a. Perform Procedure 4.1, steps 1 - 4</p><p>5. Cradle Emergency Release</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 21 of 24</p><p>Use documented procedure in Direction 5364191:</p><p>Functional Checks / Fixed Table / CRADLE EMERGENCY RELEASE</p><p>CHECK AND ADJUSTMENT</p><p>a. Perform Procedure 3.2 steps 1 - 9</p><p>6. Cradle Home Sensor</p><p>Use documented procedure in Direction 5364191:</p><p>Functional Cks / Fixed Table / CRADLE HOME SENSOR CHECK</p><p>a. Perform Procedure steps 1 - 8</p><p>Questions: 1. How do you know if the table height is adjusted properly?</p><p>__________________________________________________</p><p>2. What is the adjustment length of the delrin lock?</p><p>__________________________________________________</p><p>3. What is the maximum travel distance for the cradle emergency</p><p>lock release ramp”?</p><p>__________________________________________________</p><p>Review: Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 22 of 24</p><p>12. Express Coil Lab</p><p>Description: This lab will familiarize the student with the setup and image quality</p><p>assurance tests for the Express coil.</p><p>Time Required: 1 Hour</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation</p><p> Position the phantoms and coils for testing</p><p> Perform the Multi-Coil Quality assurance Tool</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures 5364191 on disk, or as loaded onto</p><p>system computer. Refer to Express coil SNR test .</p><p>(http://3.28.123.26:8000/mr/cdrom/5364191-</p><p>2EN/root/data/Signa_EXCITE/content/1095326.htm)</p><p>Tools Required: Unified Phantom</p><p> Phantom positioners, pad, and strap</p><p>Safety</p><p>Considerations:</p><p>Follow all LOTO procedures. They are posted in the lab and</p><p>incorporated in the documented procedures</p><p>Steps: 1. Express Coil MCQA Test</p><p>Use documented procedure in Direction 5364191:</p><p>Adjust/Cals / Surface and Head Coils / 1.5T Coil Vendor</p><p>Manuals</p><p>/ Table 11: Express Coil / SNR Test</p><p>a. Perform procedure 3.1 step 1 –3 to setup HNA coil and position</p><p>phantom</p><p>b. Perform step 4 to run MCQA tool to test mode HNA+PA</p><p>c. Perform procedure 3.1 step 1 –4 to setup AA coil and position</p><p>phantom</p><p>d. Perform step 5 to run MCQA tool to test mode AA+PA</p><p>e. Compare and record test results</p><p>Questions: 1. What coil segment would be indicated if there was a failure test 2,</p><p>Sig_Img 4 in mode HNA+PA ?</p><p>__________________________________________________</p><p>2. What coil segment would be indicated if there was a failure test 2,</p><p>Sig_Img 4 in mode AA+PA ?</p><p>__________________________________________________</p><p>Review: Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 23 of 24</p><p>13. MCR III Tool Lab</p><p>Description: This lab will familiarize the student with the MCR3 tool hardware setup</p><p>for Port A and Express PA coil, and software usage.</p><p>Time Required: 1 Hour</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation</p><p> Set up the hardware connection for Port A and Express PA coil</p><p> Know how to run the software and read the test result</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures 5364191 on disk, or as loaded onto</p><p>system computer. Refer to MCR III Tool for MR355/360.</p><p>(http://3.28.123.26:8000/mr/cdrom/5364191-</p><p>2EN/root/data/Signa_EXCITE/content/1084956.htm)</p><p>Tools Required: MCR III Tool</p><p> Express PA Coil RF Cable Assy for MCR III Tool</p><p> Express PA Coil DC Cable Assy for MCR III Tool</p><p>Safety</p><p>Considerations:</p><p>Strong Magnetic Field! Ferrous materials can become dangerous</p><p>projectiles in the presence of the magnetic field Produced by the</p><p>Signa Magnet. Do not Bring any ferromagnetic tools or equipment</p><p>into the magnet room.</p><p>Steps: 1. MCR III Diagnostic</p><p>Use documented procedure in Direction 5364191:</p><p>Troubleshooting / Image Quality Troubleshooting Tools / MCR</p><p>III Tool for Optima MR360 / Brivo MR355</p><p>a. Perform Port A, Express PA coil test</p><p>Questions: 1. What is the function of the two-pin connector?</p><p>__________________________________________________</p><p>Review: Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>GE Healthcare MR5047 SV Lab Guide</p><p>Page: 24 of 24</p><p>14. Modified Calibration Tool Lab</p><p>Description:</p><p>This lab will familiarize the student with the modified calibration tool</p><p>in SV system, including LV Shim, DQA Tool II, Grafidy 3 and EPI white</p><p>pixel test.</p><p>Time Required: 2.5 hours</p><p>Learning</p><p>Objective(s):</p><p> Navigate the service documentation</p><p> Practice the modified calibration tools</p><p>Support Materials</p><p>Required:</p><p>Service Methods procedures 5364191 on disk, or as loaded onto</p><p>system computer.</p><p>Tools Required:</p><p> LV Shim Phantom Assembly</p><p> Nesting Plate Assembly</p><p> DQA III Phantom</p><p> Grafidy 3 Kit</p><p> Split Head Coil</p><p>Safety</p><p>Considerations:</p><p>1. Follow all LOTO procedures. They are posted in the lab and</p><p>incorporated in the documented procedures</p><p>2. Take care when moving LV Shim phantom.</p><p>Steps:</p><p>1. Use Modified Calibration Tool</p><p>Use documented procedure in Direction 5364191:</p><p>Installation / Install and Calibration Wizard for Signa Brivo</p><p>MR355/Optima MR360 / 4 Procedure / 4.4 Calibrations Guided</p><p>Flow</p><p>a. Perform a saveInfo to save the current calibration</p><p>b. Perform LV Shim</p><p>c. Perform DQA Tool II</p><p>d. Perform Grafidy 3</p><p>e. Perform EPI White Pixel test</p><p>f. Restore the saveInfo of the system</p><p>Review:</p><p>Questions for instructor:</p><p>______________________________________________________</p><p>______________________________________________________</p><p>______________________________________________________</p><p>The information in this course is</p><p>FOR TRAINING PURPOSES ONLY</p><p>and not to be used as</p><p>promotional material. The</p><p>information may not be current</p><p>or appropriate for all systems.</p><p>Before working on any</p><p>equipment consult appropriate</p><p>current service documentation.</p><p>Failure to follow procedures in</p><p>current service documentation</p><p>or misuse of the course</p><p>information may result in</p><p>equipment damage, personal</p><p>injury or death.</p><p>The primary sources of the</p><p>material contained in this</p><p>course are released Service,</p><p>Sales, or Marketing</p><p>documentation.</p><p>GE Healthcare</p><p>MyWorkshop Book Number: 51232</p><p>SV Full Service Component</p><p>Identification Activity</p><p>Page 2</p><p>System Cabinet</p><p>1.</p><p>2.</p><p>3.</p><p>4.</p><p>5.</p><p>6.</p><p>2</p><p>3</p><p>4</p><p>5</p><p>6</p><p>1</p><p>Page 3</p><p>System Cabinet</p><p>1.</p><p>2.</p><p>3.</p><p>4.</p><p>5.</p><p>6.</p><p>1</p><p>3</p><p>4</p><p>2</p><p>5</p><p>6</p><p>Page 4</p><p>System Cabinet</p><p>1.</p><p>2.</p><p>3.</p><p>4.</p><p>5.</p><p>6.</p><p>4</p><p>5</p><p>6</p><p>2</p><p>3</p><p>1</p><p>Page 5</p><p>System Cabinet</p><p>1.</p><p>2.</p><p>3.</p><p>4.</p><p>5.</p><p>6.</p><p>7.</p><p>8.</p><p>9.</p><p>10.</p><p>11.</p><p>2</p><p>3</p><p>4</p><p>5</p><p>6</p><p>7</p><p>8</p><p>9</p><p>10</p><p>11</p><p>1</p><p>Page 6</p><p>Magnet Side Kit</p><p>1.</p><p>2.</p><p>3. 1</p><p>2</p><p>3</p><p>Page 7</p><p>Rear Pedestal</p><p>1.</p><p>2.</p><p>3.</p><p>4.</p><p>5.</p><p>6.</p><p>7.</p><p>4</p><p>3</p><p>1</p><p>2</p><p>56</p><p>7</p><p>Page 8</p><p>LPCA</p><p>1.</p><p>2. 1</p><p>2</p><p>Page 9</p><p>OC Computer</p><p>1.</p><p>2.</p><p>3.</p><p>4.</p><p>5.</p><p>6.</p><p>2</p><p>3</p><p>4</p><p>5</p><p>6</p><p>1</p><p>board and Mega Switch by Convert Board located under</p><p>the foot pedal cover, which one cable is for receiving RF signal from PA coil and Multicoil</p><p>bias, and another cable is for providing DC power for PA coil.</p><p>Because it is a little difficult and time consuming to disassemble the cradle, and handling PA</p><p>coil needs great care, for easy, safe and quick reason, the cradle and built-in PA coil</p><p>composed one FRU. Two person need when replacement because the weight is more than</p><p>16KG.</p><p>27</p><p>The trough on the newly designed Front Bridge is used to holding the cable track on the</p><p>bottom of the cradle.</p><p>28</p><p>For the reason of cost down and simplication, some coils use the unified phantom to</p><p>replace their own phantom. Refer to service manual for detail procedure of SNR test.</p><p>Unified phantom also can be used in HDe, HDx after the corresponding service pack is</p><p>installed.</p><p>29</p><p>• In all GE MR systems prior to SV, HDe and HDx, the keyboard and mouse communicated</p><p>via PS2 port.</p><p>• The SV system uses an optical mouse and both the keyboard and mouse communicate</p><p>with the host via USB.</p><p>• As the mouse, keyboard and monitor are all black, we can't leave the SCIM behind!</p><p>• Nothing about the SCIM's has changed except for the color.</p><p>• The biggest change you'll see at the operator workspace is the reduction from two</p><p>screens to one larger, wide-screen monitor.</p><p>• The user interface has been updated so that all information from both screens is now on</p><p>the widescreen.</p><p>30</p><p>There is only one system cabinet that covers the function of RFS, HFD cabinet and part of</p><p>penetration panel.</p><p>The following two slides show the inner components under the covers.</p><p>Note:</p><p>1) Store L/R cover carefully to prevent the distortion</p><p>2) Take care of G-Filter and power panel when moving the cabinet</p><p>31</p><p>32</p><p>There are three access window on the back of the system cabinet.</p><p>1. Access window for back of CAM Lite2 and GP3, ICN are used during installation.</p><p>2. Access window for PDU FRU only be used during replacement</p><p>33</p><p>The gradient system in SV is called XFD. It contains three gradient amplifiers XFA and one</p><p>gradient power supply XFD-PS. They are all water-cooled. A leak sensor is installed in front of</p><p>XFD to detect leakage of water pipe connectors. XFD slew rate is 100, which is twice as</p><p>much as HFD-lite used in HDe system.</p><p>34</p><p>In order to improve gradient system service capability, traditional cables and connectors are</p><p>not used for connection between XFAs and XFD-PS in SV system. XFD-PS power output and</p><p>XFA power input are used plugs and sockets, which is connected by a newly designed</p><p>component, Power panel. And XFA gradient output are also used plugs, which is directly</p><p>connected to G-Filter. With this kind of structure, it is more convenient to swap XFA than any</p><p>previous system when troubleshooting.</p><p>35</p><p>Power panel connects XFAs and XFD-PS. It can be accessed by removing its cover in the magnet room. If</p><p>the power panel needs to be replaced, be assure to wait for at least 15 minutes after XFD power-off. And</p><p>the nethermost plug must be removed before removing other plugs.</p><p>36</p><p>37</p><p>38</p><p>There are 108 screw holes on the frame connected to the system cabinet. But only 60</p><p>screws are supplied. Fix the System Cabinet with washer and screws at every two hole pitch.</p><p>Do not install screw in every hole.</p><p>39</p><p>40</p><p>The three phase alternating current for MCS and 8KW LCS must have the correct phase</p><p>position to operate. If the phase rotation is incorrect, there is no indication of power to the</p><p>system. Swap two phase leads, observing LOTO precautions. The 4KW LCS doesn’t have</p><p>this requirement. On the top of system cabinet, there are only one terminal connected to</p><p>MCS or 8KW LCS so if the configuration has another 4KW LCS, it will get AC power from the</p><p>8KW LCS.</p><p>41</p><p>42</p><p>43</p><p>44</p><p>• There are five kinds of water cooling system configurations.</p><p>• Type A, B and C have their individual plumbing assembly.</p><p>• In type B and type E, Facility water is provided by the customer. The water should meet</p><p>the specification in the pre installation manual. In not, it is possible to damage our</p><p>equipment.</p><p>• In Type D, the BRM chiller and Air-cooled cryogen compressor are only available to 200V</p><p>AC power input. So the facility power can only be 200V AC.</p><p>• Type E is only for EMEA. A 3 Phase AC stepdown transformer should be installed which</p><p>supplies the 200V to BRM chiller.</p><p>45</p><p>46</p><p>47</p><p>48</p><p>49</p><p>50</p><p>51</p><p>52</p><p>53</p><p>54</p><p>55</p><p>In previous installation of outdoor water chillers, the vendor used different valves for</p><p>connection. The quality can’t be assured by this way. Now the Plumbing Assy will be</p><p>shipped to site according to the different configuration of cooling system.</p><p>56</p><p>In order to meet the market requirement, SV system contains two kinds of configuration:</p><p>Optima MR360 and Brivo MR355.</p><p>For the customers who are familiar with GE MR system, Optima MR360 can provide</p><p>affordable, versatile MR scanning to meet everyday patient needs with</p><p>uncompromised(uncompromising) imaging, workflow, service and support.</p><p>For the customers who are new to MR system, they will learn to use Brivo MR355 without</p><p>too much training. Function of Simple UI makes scan operation much easier than any</p><p>previous MR.</p><p>Note: OIC = Outpatient Imaging Center</p><p>57</p><p>In general, Optima MR360 & Brivo MR355 have the same basic hardware configuration.</p><p>Fixed Table with Express coil can be used in both Optima MR360 and Brivo MR355.</p><p>Detachable Table can only be used in Optima MR360.</p><p>58</p><p>• Optima MR360 and Brivo MR355 have the same application software with different</p><p>software options and coil options.</p><p>• The software options available in MR360 are more than that in MR355, which means</p><p>MR360 is more powerful than MR355.</p><p>• Optima MR360 can use all kinds of coils. Brivo MR355 has four kinds of configurations .</p><p>Only the coils included in the configuration can be used, which is controlled by the Option</p><p>key.</p><p>• There is no CoilConfig File in SV, which is replaced by CoilDB. CoilDB is a predefined Coil</p><p>Database, which stores the config information of all coils. Users can’t add, delete and</p><p>modify coil config information in CoilDB, but can view the content by Coil Database</p><p>Explorer in Service Browser.</p><p>59</p><p>• For the purpose of market sales, Brivo 355 has four kinds of configuration: Main, Main +</p><p>Knee, Main + Shoulder and Premium.</p><p>• In Brivo Main configuration, only 8 coils listed in the left table can be used.</p><p>• In Brivo Main + Knee configuration, not only the initial 8 coils but also Quad Extremity coil</p><p>can be used.</p><p>• In Brivo Main + Shoulder configuration, the 8 initial coils and 3 channel shoulder coil can</p><p>be used.</p><p>• In Brivo Premium configuration, 10 coils can be used, including the Quad extremity, 3</p><p>channel shoulder coil and the 8 coils in Main configuration.</p><p>• So, only the coils included in the configuration can be used. For example, 3Ch Shoulder</p><p>coil can’t be used in Brivo Main and Brivo Main + Knee configurations. Be sure to confirm</p><p>what kind of configuration is in your site before using any coils, otherwise the coil may be</p><p>not identified.</p><p>• There is no this limitation in Optima MR360. But MR360 has to follow another limitation</p><p>according to different table type.(Refer to the next page)</p><p>60</p><p>• HDe can be upgraded to SV due to higher performance than HDe. Almost everything will</p><p>be replaced except the LCC magnet.</p><p>• But only type B of HDe with equipment room configuration can be upgraded to Optima</p><p>MR360 system.</p><p>• For type B of HDe with water cooled shield cooler, shield cooler must be removed and will</p><p>be replaced by F-50.</p><p>• For type B of HDe with air cooled shield cooler, shield cooler will be reused. No need to</p><p>remove.</p><p>• Optima MR360 configurations upgraded from HDe are Type C and Type D with detachable</p><p>table.</p><p>• For detailed information, refer to Signa HDe to Optima MR360 System Upgrade Manual</p><p>(P/N: 5410639-1EN Rev 1.1)</p><p>61</p><p>Brivo MR355 can be upgraded to Optima MR360 after</p><p>uninstalling the previous one of Brivo</p><p>option keys and installing MR360 Option Key. No hardware change is needed.</p><p>62</p><p>63</p><p>64</p><p>65</p><p>66</p><p>67</p><p>With Favorite Protocol, users can select their favorite protocols at hand graphically instead</p><p>of opening protocol selector window. It has two kinds of favorite protocols:</p><p>• Ready Favorite Protocols, also called Ready Shortcuts</p><p>• Custom Favorite Protocols, also called custom shortcuts</p><p>Ready Favorite Protocols are predefined and cannot be changed by users. User can define</p><p>Custom Favorite Protocols from any protocols.</p><p>68</p><p>69</p><p>Simple UI is designed for inexperienced customers who can't and those who don't want to</p><p>handle complicated MR physical parameters as “novice mode”. It allows switching to</p><p>“Advanced” and “Expert” UI modes at any time (except after the task is saved). The</p><p>inexperienced users can finish the routing scan in Simple UI.</p><p>Basic Scan Mode is designed for the routine examination. Most of all scan parameters are</p><p>hidden to simplify the visual look and avoid changing the parameter without careful</p><p>management on the image quality. The Slider Bar is the way to select different sets of the</p><p>scan parameters.</p><p>70</p><p>The Advanced Scan Mode and Expert Scan Mode is to control all scan parameters in detail.</p><p>The scan mode can be switched when the [Mode change] button is selected.</p><p>71</p><p>Default Scan Screen mode can be set as System Preference.</p><p>The default Scan Screen mode applied at the beginning of the exam.</p><p>Note: Scan Screen mode is kept in a exam until the mode is changed.</p><p>72</p><p>1. Tradeoff is shown on the slider bar.</p><p>Basically the SNR is kept for all positions, but the spatial resolution is different.</p><p>2. Following scan parameters are propagated to the other position of the Slider Bar.</p><p>Scan plane, Start/End location, Auto shim, Tracker length/thickness, Patient entry/position,</p><p>Coil configuration, Series description, Contrast information</p><p>3. Slider Bar protocols are not allowed to save and duplicate.</p><p>Proto Copy will be helpful to make the protocol from images scanned with the Slider Bar</p><p>protocol. The protocol generated by Proto Copy includes just one scan parameter set of the</p><p>Slider Bar protocol.</p><p>4. Slider Bar function doesn’t apply to all the protocols. Only the protocols in the above list</p><p>are OK to use. The protocols selected from the Ready Shortcuts are Ok to use too.</p><p>A easy way to check:</p><p>If there are short vertical lines showed on the Slider Bar, it means the protocol can use this</p><p>function.</p><p>73</p><p>Protocol Selector are totally different from the previous version. There are the specific user</p><p>interface for Adult and Pediatric protocols.</p><p>74</p><p>Protocol Template only can be accessed in GE protocol library. In this template, all the</p><p>common used protocol can be found.</p><p>75</p><p>Image can be previewed in this new version of Image Management.</p><p>76</p><p>77</p><p>78</p><p>79</p><p>80</p><p>You can access the same diagnostic items by System Function or Hardware Location. Their</p><p>functions are same.</p><p>81</p><p>IP Protection is new designed Software Tool for security improved of GE proprietary tool.</p><p>The function is optional that can be closed as defined by local service organization. When IP</p><p>Protection is enabled, the field service personnel will be required to input an authorization</p><p>code to access the service browser to utilize GE proprietary tools. The authorization code can</p><p>be generated automatically in the back-office sever after one IPP Key is input that is</p><p>generated by MR host software.</p><p>NOTICE: Service IP Disable Key (M50002DJ) shall be ordered to disable the function.</p><p>NOTCE: IP protection is just available in China as pilot prior to M4. The design will be improved</p><p>based on the field feedback. The global deployment plan will be finalized prior to M4.</p><p>Main function consists of:</p><p>• Optional (Default is active, “iprotection” option disable it)</p><p>• Only lock Class C/M tools( USB service key shall be presented)</p><p>• Auto-run( User generate the activation key by themselves)</p><p>• B/S structure( web browser to log in server, like e-License)</p><p>• Customized useful-life ( period of validity from 48 hrs to 30 days, only for administrator</p><p>account)</p><p>• User management and Event log (Add/Delete user account, log activation code generation</p><p>time, user, hospital…, only for administrator account)</p><p>• Manually generate in emergency ( Server down, Administrator can generate key by</p><p>another SW)</p><p>82</p><p>83</p><p>The E-Reporting Tool is a web-based application that allows for better communication</p><p>between the customer and the GE service engineer. Communication is one-way with this tool</p><p>from the service engineer to the customer. When a Field Engineer (FE) or Online Engineer</p><p>(OLE) provides service at a customer site, the E-Reporting Tool is used to document issues</p><p>found or service performed. It is also used to provide recommendations for customer follow-</p><p>up, for example, suggesting that the customer improve room temperature. After the service</p><p>engineer has created a service report, the customer can view and print the report at any</p><p>time.</p><p>There are three types of reports in the E-Reporting Tool:</p><p>1) Emergency and Routine Service Report - (The Field Engineer primarily uses this page to</p><p>communicate to the customer any information from emergency or routine service calls.) This</p><p>report is created, for example, when an FE or OLE is called onsite to resolve an emergency</p><p>site issue and wants to maintain a log of the discussion that occurred between site</p><p>personnel and the engineer. The service engineer is also able to communicate with the</p><p>customer about work that was done after hours at that site.</p><p>2) Planned Maintenance Service Report - (The Field Engineer primarily uses this page to</p><p>communicate to the customer any PM information from planned maintenance service calls.)</p><p>An FE or OLE may create this report to communicate to site personnel about the details of</p><p>planned maintenance that was performed onsite by GE. The report could also contain any</p><p>site-related issues that the customer should correct or that GE needs to fix.</p><p>3) Predictive Maintenance Service Report - (The OnLine Center primarily uses this page to</p><p>communicate to the customer any information from predictive maintenance service calls.)</p><p>This report may be created by an FE or OLE when performing proactive work to remedy a</p><p>problem that will occur onsite if site conditions are not corrected. This may involve site-</p><p>related issues that could impact product performance. Examples include temperature and</p><p>humidity that is out of specification, or MCQA results that indicate a problem with site coils.</p><p>84</p><p>In SV systems, it is easy to enable or disable autologin function. If the current mode is</p><p>unclear, use the STATUS function to check.</p><p>85</p><p>86</p><p>87</p><p>88</p><p>89</p><p>90</p><p>CAN stands for Controller Area Network, which is a vehicle bus standard designed to allow</p><p>microcontrollers and devices to communicate with each other within a vehicle without a</p><p>host computer. It is also used in other areas such as industrial automation and medical</p><p>equipment. Since MGD was introduced into GE MR system, CAN replaces the MDS link</p><p>gradually. In different systems, the components connected through CAN link are different.</p><p>1. SCP3 is in charge of receiving and managing the system data, sending control instructions</p><p>and monitoring the status of all connected node devices through the CAN link.</p><p>2. Every node device has its own built-in CAN communication controller. All controllers are</p><p>powered by a single isolated +24V power supply in the cabinet monitor.</p><p>3. CAN needs terminator resistor to balance the impendence of the network. One 120ohms</p><p>resistor is embedded in the SCP3 board, and another 120ohms resistor is installed on the</p><p>farthest node - Cabinet Monitor.</p><p>4. The DC24V ISO power is provided by Driver Module in HD, HDx system. In Emergency Off</p><p>mode, Driver Module will lose power and the CAN link is broken. The system requires a TPS</p><p>reset after power restoration. In SV system however,</p><p>CAN 24V DC power is supplied by</p><p>Cabinet Monitor, and it is still energized when system is in Emergency Off mode, so TPS reset</p><p>is unnecessary after power is restored.</p><p>5. In service browser, CAN diagnostic tool can be used to check if the CAN link works</p><p>normally. Cabinet Monitor should be always connected because it supplies the 24V DC</p><p>power for the whole CAN link. We can bypass one node by removing the CAN in and out</p><p>cables and directly connecting the two cables except the driver module lite, because the</p><p>CAN cables connectors in driver module are both male.</p><p>91</p><p>This graphic displays the Ethernet routes and serial service for the SV system.</p><p>• Because CAM lite2 has no APS, so port 1 in Term Server is not used any more.</p><p>• Image data, status and control signal are transferred by the 1000M Ethernet switch.</p><p>• A VERY IMPORTANT THING TO REMEMBER: Image Compute Nodes are computers like your</p><p>PC… they must be shut down properly or they risk operating system corruption.</p><p>• ALWAYS follow service procedures when removing power to ICNs – shut them down via a</p><p>“soft power off” at the GOC, not by pushing the power button on the ICNs themselves or</p><p>by pulling the power cord. We will say this many times in this training!! In addition,</p><p>removing power to the Systems cabinet (or RF/Systems cabinet) without properly shutting</p><p>down the Volume Recon Engine subsystem will induce the possibility of corrupting the</p><p>operating system on the ICNs!!</p><p>• VRE can be safely powered down by 1) shutting down the host computer or 2) Using the</p><p>VRE power utility from the common service desktop</p><p>92</p><p>The Common MR Communications Link is first used in the DVMR product development. In SV,</p><p>we use the same communication link.</p><p>SerialLite is a serial protocol developed by Altera Corp. and Innocor Ltd. Altera provides an IP</p><p>core implementation of SerialLite that utilizes the high-speed serial transceivers in their</p><p>Stratix GX FPGAs. This communications link assumes implementation in a Stratix GX FPGA</p><p>using the Altera IP core.</p><p>The DVMR Common Communications Link, or dvmrlink, defines bidirectional data transfer</p><p>within the DVMR system. This includes data transfer between the CAM chassis and remote</p><p>devices, including RF Exciters, RF Receivers, and data transfer between an RF Receiver and a</p><p>VRF installed a VRE. IRF3 board is the interface of DVMR link.</p><p>1. DATA TRANSFER FROM CAM TO REMOTE DEVICES</p><p>Data transfer from CAM to the remote devices includes both synchronous and</p><p>asynchronous data. The Sequence Bus, which contains SSP (Sequence Scan Protocol)</p><p>Commands, RF data, and gradient data, is the source of synchronous data. The CAM CPUs,</p><p>via the PCI bus, are the sources of asynchronous data. Asynchronous data transfer</p><p>effectively provides PCI write access to the remote devices. Synchronous and asynchronous</p><p>data is merged into an CAM data packet.</p><p>2. DATA TRANSFER FROM REMOTE DEVICES</p><p>Data transfer from the remote devices include status information, sample data, echoed SSP</p><p>commands, and echoed PCI commands.</p><p>3. Data Transfer from VRF to Remote Receivers</p><p>In SV system, the 8 channel RF signals are digitized by ADC in RRX and converted into optical</p><p>signal, send to VRF in VRE via VRF Data Link.</p><p>93</p><p>This block diagram shows RF receive chain in SV system. If the system configuration is</p><p>MR360 without Express coil, J22 in Mega Switch has no cable connection.</p><p>Mega Switch selects different input signal from Port A coil, PA coil and body coil, and</p><p>amplifies the selected signal, and converts them to intermediate frequency signal, which</p><p>center frequency is about 16MHz.</p><p>Then, RRX gets the eight channel RF signals and digitizes them with ADC, and converts them</p><p>to optical signal, and send to VRF in VRE via VRF Data Link.</p><p>VRF converts the optical signal to electrical signal and filters them, then sends them to ICN</p><p>for image reconstruction.</p><p>Then the reconstructed image is send to host via Ethernet switch.</p><p>94</p><p>95</p><p>96</p><p>During RF transmitting, Unblank signal will be generated and sent to synchronize</p><p>remote devices. Digital Unblank signal is sent from CAM lite to Exciter via DVMR link.</p><p>The analog Unblank signal is generated by the Exciter.</p><p>Then, the analog Unblank signal is sent to Driver module lite Unblank distributor,</p><p>which outputs same Unblank signals and sends to UPM1, UPM2, RF amplifier interface</p><p>board and SRFD3.</p><p>On the other hand, Unblank and AC Power Sense signal will be sent to the Magnet</p><p>Monitor.</p><p>1. Unblank signal may aid in executing ADC algorithms for improving accuracy of the</p><p>sensed ADC inputs that have spikes due to RF noise coupling.</p><p>2. Power Sense indicates whether or not the System Cabinet is powered-up. The</p><p>resulting state shall be made available for the SBC (Single Board Computer) in Magnet</p><p>Monitor to read. This will allow the determination of the validity of the Unblank signal.</p><p>97</p><p>PCIAA is functionally similar to GOCAA (Global Operator Console Audio Assembly), but</p><p>is only used for audio communication between operator and patient. It locates in the</p><p>host PC and is mounted on one PCI socket. But PCIAA has no any electrical connection</p><p>with PCI socket, only occupies one PCI slot to fix.</p><p>The cable (E3047) between SCIM and PCIAA are new designed part. The mouse are</p><p>keyboard are all USB port.</p><p>98</p><p>Simple OC consists of host PC and chassis.</p><p>Host, LCD and Ethernet switch get the power supply from the power strip in the</p><p>chassis. There is a circuit breaker on the power strip, which can only be accessed after</p><p>right cover removal.</p><p>Pay attention to the service key after inserted in the front USB port. It is easy to be</p><p>broken when anyone passes by the OC! It is suggested that the service key had better</p><p>to be inserted in the rear USB port.</p><p>The Option keys are bounded to the ethernet card built in the main board. But the</p><p>main board is not a FRU. The whole PC has to be replaced if the main board doesn’t</p><p>work, and all the software options has to be regenerated in the eLicense website.</p><p>The following is the FRU List in Simple OC:</p><p>Host PC ( THTF M10)</p><p>Memory ( 2GB DDR2 677 DIMM)</p><p>DVD RW ( PLEXTOR PX-806SA)</p><p>HDD ( Western Digital WD3202ABYS-0)</p><p>Dust Filter</p><p>LAN Switch</p><p>PCIAA Collector</p><p>OC Chassis Collector</p><p>Cable Collector</p><p>99</p><p>The input power for THTF host should be 100~240VAC.</p><p>SCSI tower isn’t used in SV system any more. Only one DVD-RW driver is installed in the</p><p>host. LFC, save and restore info are all executed by this driver. It is fixed by two screws</p><p>on the left side. There are no fixed screws on the other side. It is easy to be pulled out</p><p>with a little of force after removing the screws.</p><p>The glue on the bracket of the memory socket is to assure that the memory will not</p><p>become loose during transportation. Be careful to remove the glue when replacing the</p><p>memory.</p><p>100</p><p>This slide shows the detailed configuration of THTF host.</p><p>101</p><p>• PCIAA (PCI Audio Assembly) Kit contains one ribbon cable and two boards: PCIAA</p><p>board and PCIAA Extended board.</p><p>• There are several audio adjustment potentiometers on the PCIAA extended board</p><p>for adjusting patient and operator voice levels. The Minimum Patient Speaker</p><p>Volume is fixed, there is no adjustment for it .</p><p>• It is easy to forget to connect the power cable to the PCIAA. Be sure that it’s been</p><p>connected before you close the host cover. Otherwise, TPS reset will not respond.</p><p>102</p><p>103</p><p>104</p><p>105</p><p>• Due to 2.15 Farad super capacitor used in gradient power supply, the rated power</p><p>of system cabinet PDU is decreased to 25KW.</p><p>• 3 phase lines and 1 ground wire are connected between MDP (Main Disconnect</p><p>Panels) and PDU.</p><p>• Input voltage is selected by inserting the incoming power cables into the</p><p>corresponding transformer terminal.</p><p>• DIP switches, under the cover, set the overload and short circuit trip on input power</p><p>as on other systems.</p><p>• There are two cables connected to the PDU control board. E-Stop control cable are</p><p>connected to three emergency off button. Another cable is from cabinet monitor,</p><p>which trip E-off contactor when issues are detected, and switch on or off Nigh</p><p>mode contactor.</p><p>• When the PDU is initially installed, all breakers are off. Be sure to observe the</p><p>correct order of switching on the PDU breakers to ensure coolant is flowing before</p><p>heat generating components, such RF amplifier, gradient amplifiers and gradient</p><p>power supply, are powered up.</p><p>106</p><p>The 25KVA is a new design part. The power capacity is less than former products</p><p>because the gradient power supply uses the super capacitors to store power energy in</p><p>SV system.</p><p>Control signals to Main Breaker:</p><p>1. Power Off Button Control: This signal is from Power Off button. Main breaker will trip</p><p>if press this button.</p><p>2. Transformer Temperature Sensor Control: This signal is from 3 phase transformer in</p><p>PDU. Main breaker will trip if the temperature of the transformer is over the limit .</p><p>3. Main Breaker Trip Control: Refer to 2.c in this page.</p><p>Control signals to Control Board:</p><p>1. Input control signal:</p><p>a. EMO Reset Button Control: This signal is from EMO Reset Button. E-off contactor</p><p>and Night Mode contactor will be energized after pressed this button.</p><p>b. E-Stop Control: This signal is from outside E-Stop circuit (Refer to the next page). E-</p><p>off contactor and Night Mode contactor will lost power when pressed any E-Stop</p><p>button.</p><p>c. Cabinet Monitor Control: This signal is from cabinet monitor. It contains two kinds</p><p>of signal. One is for controlling E-Off contactor, the other is for controlling Night Mode</p><p>contactor. For detailed information. Refer to Cabinet Monitor section in this</p><p>documentation.</p><p>107</p><p>2. Output control signal:</p><p>a. E-Off Contactor Trip Control</p><p>b. Night Mode Contactor Trip Control</p><p>c. Main Breaker Trip Control: In HDe system, when leak sensor 1 detects any leakage,</p><p>cabinet monitor will send control signal to PDU to trip the Main Breaker. The whole</p><p>system will lost power input. But in SV system, leak sensor 1 is removed. So this signal</p><p>is not used in SV any more although the control circuit is still there.</p><p>108</p><p>MPS (Magnet Power Supply) is for ramping up power supply. It will have no output</p><p>after E-stop contactor is tripped.</p><p>109</p><p>There are five Switching AC to DC power supplies located on the upper right of the</p><p>system cabinet.</p><p>DCPS for DM_Lite, Exciter, Mega SW & RRX only have input power 120VAC, no control</p><p>signal, which means that the three DCPS have stable and uncontrolled output once</p><p>the input power 120VAC is engaged.</p><p>Output of DCPS for DM lite: +24V/+15.38/-15v/+12V/-12V/+10V/-10V</p><p>Output of DCPS for Exciter: +5.3V/+12.6V/+15.8V/+7.4V/-7.4V</p><p>Output of DCPS for Mega SW & RRx: -9.25V/+9.75V/+6.625V</p><p>DCPS LED Power includes the following power and signal:</p><p>1. Provide +24V, +15.25V, -15.25V, 5V_PAL(For Patient Alignment Laser) and 5V_BL</p><p>(For Bore Light) to LED Power Box</p><p>2. Output Mag_DC_OK status signal to PHPS Lite2</p><p>3. Receive control signals from PHPS Lite2, including Remote On/Off signal of BL and</p><p>PAL.</p><p>DCPS PHPS-Lite2 includes the following power and signal:</p><p>1. Provide +42V and +8V to PHPS-Lite2,</p><p>2. Provide +42V to DOCK</p><p>3. Provide 120 VAC to PHPS-Lite2 for controlling Patient Blower</p><p>4. Output Table_DC_OK status signal to PHPS Lite2</p><p>5. Receive +42V sensing signal from the dock motor to adjust the output +42V to Dock</p><p>motor.</p><p>110</p><p>111</p><p>1.Overview</p><p>The PHPS stands for Patient Handling Power Supply. It functionally replaces the SSM</p><p>(System Support Module). There are three types of PHPS for different type of MR. The</p><p>above table shows the difference between PHPS, PHPS-Lite and PHPS-Lite2.</p><p>2. Basic principle</p><p>The PHPS-Lite2 is mounted in the Cabinet.</p><p>It consists of a PHPS Control board, a CAN Communication Core (CCC) Board which is</p><p>physically mounted as a daughter board on the control board and a pulse width</p><p>modulated Servo amplifier.</p><p>DC +42V and +8V are supplied from the outside Power Supply for PHPS-Lite2.</p><p>This power in turn is used to generate regulated +5V and +3.3V locally for use on the</p><p>control board and +42V for Servo Amplifier.</p><p>112</p><p>1) The Control Board Assembly gets command signal serially from IRF I/O J23 in CAM-Lite2 cabinet. The</p><p>Control Board generates signals needed for control of the following entities:</p><p>• The Patient Alignment Laser</p><p>• The Bore Light</p><p>• The Patient comfort fan relay</p><p>• The enable signal needed by the Servo amplifier</p><p>• The output relays in the longitudinal motor drive circuit</p><p>• Current feedback signal for monitoring the dock motor current</p><p>• Communicates status of power supplies and servo amplifier to the CCC board</p><p>2) The Servo Amplifier is a Pulse Width Modulated (PWM) device used for powering the longitudinal</p><p>motor. DC 42V generated by the control board is the base input voltage. The SRI send command signal</p><p>of In and Out or Fast In and Fast Out directly to Servo Amplifier to drive the longitudinal motor.</p><p>3) The CAN Core Communication (CCC) board monitors the health of the power supplies and the status</p><p>of the servo amplifier, and communicates this information to the host. The CCC board receives power</p><p>supply voltages, digital I/O signals, and analog inputs corresponding to the power supply voltages</p><p>from the Control Board. The digital I/O of the CCC operates at 3.3V so all logic levels must be converted</p><p>to this level on the Control Board. Additionally, the CCC gets an isolated 24V from an external source</p><p>for powering the serial interface communications.</p><p>3. Block diagram</p><p>Signal Table_DC_OK comes from Power Supply for PHPS Lite2. PS for PHPS Lite2 provides DC +42V and</p><p>+8V to PHPS Lite2 by J6. The signal is activated when DC +42V is OK.</p><p>Signal Mag_DC_OK comes from Power Supply for LED Power Box. PS for LED Power Box provides +15V,</p><p>-15V and +24V DC power to LED Power Box and controlled DC +5V to Patient Alignment Laser and Bore</p><p>Light. The signal is activated when Power Supply works normally.</p><p>113</p><p>CAM Lite is short for Consolidated ASC MGD Lite chassis. It consolidates the</p><p>components of the Multi-Generational Data acquisition chassis (MGD) and Amplifier</p><p>Support Controller (ASC) chassis into one unit on HDe forward production Systems</p><p>cabinets. The CAM-Lite chassis combines the individual ASC and MGD boards into a</p><p>common chassis. There is no change in functionality.</p><p>114</p><p>115</p><p>116</p><p>The CAM-LITE2 is a consolidation of two subsystems, the MGD LITE and ASC LITE. It</p><p>contains a custom 6U cPCI midplane that is comprised of a single custom bus</p><p>segment, two cPCI bus segments and a common power system. The single custom</p><p>bus segment house the Universal Power Monitor (UPM) circuit card that provide RF</p><p>amplifier power monitoring function with redundancy and the Amplifier Interface (AIF)</p><p>circuit cards for the Narrow Band (NB). The functions within this custom bus segment</p><p>communicate to the MR system, utilizing CAN via the midplane. A single board</p><p>computer (AGP2) serves as the cPCI bus segment masters. A third processor board</p><p>(SCP3) provides serial interface functions and house a CAN mezzanine card. The GEHC</p><p>custom boards IRF I/O, SRF/TRF and STIF interface to one of the cPCI bus segments. A</p><p>custom, non-transparent, cPCI bridge board allow cPCI communication between the</p><p>primary and secondary cPCI midplane segments.</p><p>117</p><p>AGP(Applications Gateway Processor) or the AGP2 include a cPCI(Compact PCI) single</p><p>board computer. The AGP consists of a Motorola MCP750 or equivalent, and include a</p><p>64MB memory mezzanine module. The AGP-II consists of a Motorola MCP820 or</p><p>equivalent, and include a 128MB memory mezzanine module.</p><p>So AGP2 Board (Slot 6 F) is also sometimes referred to as MCP820. That is why the</p><p>terminal window shows 820 when we reset TPS while logging in AGP to monitor it</p><p>status using command mgd_term. AGP coordinates the work of the IRF, IRF I/O,</p><p>SRF/TRF, and STIF Boards to create the digital RF and gradient data needed to</p><p>generate the scan waveforms. The top cable, equipped with the male RJ-45 connector,</p><p>provides an Ethernet link between the Host and the AGP. During a TPS Reset,</p><p>PSD data</p><p>download from Host and data transfers to the AGP via this link. The bottom cable,</p><p>equipped with the male RJ-45 connector, provides a service RS-232 serial link between</p><p>the AGP and the Host via the Term Server.</p><p>118</p><p>The SCP3 Board, also is called CPV3, is functionally update of a standard SCP and SCP2 Board, which</p><p>its performance increases dramatically. It is required for certain purchased scan options.</p><p>The following is the functional and performance enhancements over the CPV-3060 (SCPII) assembly:</p><p>• Compute performance: the SCPIII processor operates with a core clock of 667 MHz, compared to the</p><p>50MHz processor clock on the CPV-3060 processor</p><p>• Memory bus performance: the SCPIII processor hosts DDR2 SDRAM components on a dedicated</p><p>167MHz bus, with a raw bus transfer capacity of ~21 Gb/s, as compared to the 2.1 Gb/s raw bus</p><p>transfer capacity of the 66 MHz SDRAM components on the CPV-3060</p><p>• Memory array capacity: the SCPIII processor offers 64–512 Mbyte capacity at the main memory</p><p>array, compared to the 64–128 Mbyte capacity offered on the CPV-3060. The RAM configuration for GE</p><p>part is 256M.</p><p>• Front panel Ethernet port: the SCPIII hosts a 10/100/1000BaseT port as compared to the</p><p>10/100BaseTX Ethernet port on the CPV-3060</p><p>• CANBus interface ports: SCPIII provides two front panel CANBus 2.0 interfaces on the main board in</p><p>place of the ESD Electronics PMC331-1 CANBus controller module provided with the CPV-3060.</p><p>All front panel and primary backplane I/O functions of the SCP2 are maintained on the new board</p><p>except for the rear-access SMC port, which is not supported on the newer PowerQUICC processors.</p><p>SCP3 has one PMC site and provides two on-board CANBus 2.0 interface controllers in place of the</p><p>second PMC site provided on the SCP2. The SCP3’s internal hardware architecture is implemented</p><p>around a new MPC8360 PowerQUICC II Pro processor with a 667 MHz core clock.</p><p>The middle white cable, equipped with the male RJ-45 connector, provides an Ethernet link between</p><p>the Host and the SCP. During a TPS Reset data is transferred to the SCP via this link.</p><p>The bottom cable, equipped with an RJ-45 connector, provides a service RS-232 serial link between the</p><p>SCP and the Host via the Term Server.</p><p>119</p><p>The IRF3 is the third generation Interface and Remote RF Functions circuit board. It is designed for use</p><p>within the DVMR system and, despite many architectural similarities, maintains no backwards</p><p>compatibility with IRF or IRF2.</p><p>The IRF3 primarily serves as a communications hub within the CAM chassis, supporting</p><p>communication with one or two Remote Receiver devices (RRx), one or two Remote Exciter devices</p><p>(DTx), and the XGD gradient subsystem via five identical high-speed (2Gbit) serial fiber optic interfaces</p><p>implementing the DVMR Common Communications Link.</p><p>The IRF3 accepts an 80MHz reference clock input via a fiber optic receiver. This clock is used as the</p><p>master clock, both on-board and for the CAM system. CAM clocks, except PCI, are normally derived</p><p>from this reference. The FPGA provides logic to detect the absence of transitions on the reference</p><p>clock input. The FPGA also provides the ability to operate the CAM system stand-alone, using the PCI</p><p>clock instead of the reference clock, and, in fact, this is the default clock mode of the IRF3. Note that</p><p>system operation is asynchronous in this mode.</p><p>The IRF3 includes a front panel reset push button for CAM chassis reset. The debounced switch drives</p><p>the backplane reset request to the backplane system slots with a pulse of at least 100ms to initiate a</p><p>PCI reset.</p><p>The IRF3 interfaces to the CAM system through the backplane. These interfaces include the 32-bit 33</p><p>MHz PCI interface and the custom Sequence Bus. This also includes the CAM chassis temperature</p><p>monitoring portion of the SMC interface.</p><p>The IRF3 provides the same SMC inputs and outputs as IRF1 and IRF2. In SV, only Scan Room Door is</p><p>required.</p><p>The IRF3 provides five instances of the DVMR Common Communications Link that are identical and</p><p>interchangeable. The fiber optic transceiver modules have internal real-time diagnostic capability, and</p><p>measure internal module temperature, internal supply voltage, transmit bias current, transmit optical</p><p>output power and receive optical input power. Via the FPGA, these values are collected and made</p><p>available to the system via PCI.</p><p>Eight indicator LEDs on the front panel to provide general status information and to provide the status</p><p>of the communications links.</p><p>120</p><p>The RF Amplifier Support Chassis (ASC) will house two complete Universal Power Monitors for</p><p>redundancy. A UPM will consist of a UPB and up to two UPM RF Detector Boards (RFD) connected on</p><p>the ASC Backplane. Each UPM will be capable of monitoring forward and reflected RF power in a MR</p><p>system for 0.35T to 3T range of field strengths. In 1.5T SV system, only forward RF power is monitored.</p><p>The RF Detector Board is the front end of the UPM. They accept coupled RF power from the various</p><p>transmitter pathways in the MR systems, and execute Analog to Digital conversion (ADC) under the</p><p>control of UPM Processor Board (UPB), and convert them to a digitized power envelope.</p><p>The digitized power envelope is passed along to the UPB to be processed through mathematical</p><p>algorithms for the monitoring of RF power levels and for the detection of excessive power conditions.</p><p>The UPB will communicate status and fault/error conditions to the system through CAN as well as</p><p>supporting inter-module communications as necessary.</p><p>In SV and HDe system, RF AMP Interface board (AMPIF) is introduced to support SRFD3. The AMPIF</p><p>receives NB UNBLANK signal from the Driver Module and passes these UNBLANK signal to the RFPA.</p><p>When RF Output Power is above the limitation, UPB will create RF LOCK signal and send it to AMPIF.</p><p>AMPIF will send RF LOCK signal to RFPA to stop power output. And UPB sends inhibit Unblank signal to</p><p>the Drive Module to stop output the Unblank signal.</p><p>Attention: The AMPIF for CAM Lite is basically compatible in function with the AMPIF in ASC Lite of HDe.</p><p>But the pin assignment of RF LOCK on backboard is different between ASC LITE and CAM Lite. They</p><p>would be compatible by switching the pin assignment by switch on the board.</p><p>Note: NB = Narrow Band, BB = Broad Band, CW = Continuous Wave, BB and CW Unblank signals are</p><p>only for Multi-Nuclear Spectroscopy (MNS) amplifiers.</p><p>121</p><p>Driver Module Input and Output Signals:</p><p>1. Head T/R Bias (J6) to SRFD3: +8VDC(@4.25A)/-14.4VDC(@400mA)</p><p>2. Body T/R Bias (J7) to SRFD3: +5VDC(@5.5A)/-14.4VDC(@400mA)</p><p>3. Dynamic Disable Bias (J21/22/24/25) to Body Coil: 500VDC/ -1A(@-3.7VDC)</p><p>4. Direct Drive Bias (J23) to Body Hybrid: 500VDC/-1A(@-3.7VDC)</p><p>5. MC Aux Power (J3): +/-15VDC used by coils to generate preamp bias for preamps in</p><p>coils.</p><p>6. MC Preamp Power (J3): +15VDC used in LPCA to generate preamp bias for preamps</p><p>in LPCA.</p><p>7. MC Switch Control (J3): signals go to 8-Channel Switch Board to control 8-Channel</p><p>Switch Board operation.</p><p>8. MCD 0-7 (J5): Multicoil T/R Bias to multicoils (+3/+5/+7/-5VDC@(0.5A)).</p><p>9. Unblank signal input (J19) from Exciter goes to CAM Lite2 (J11, J12, J13). DM can</p><p>disable RF by disabling Unblank if bias faults.</p><p>10. CAN link (J1/J2): come from PHPS Lite2, go to GP3 from DM.</p><p>11. HV/TR/DD/MC Fault Disable Switches: service facilities in DM.</p><p>12. Serial High-speed data input (J4): This input will provide the high-speed differential</p><p>data necessary for “on-the-fly” coil switching. This data will be used only for intra-scan</p><p>modification of MC_SELECT to change the selection of the MC driver outputs.</p><p>It will modify only the drivers selected to switch to “receive mode” and will not have</p><p>the capability of modifying the driver’s positive output voltage level or any fault</p><p>detection levels.</p><p>122</p><p>123</p><p>RF Exciter Outputs</p><p>1. Analog RF excitation signal</p><p>2. 80MHZ Clock signal to VRF, IRF3, Mega Switch and RRX via Mega Switch</p><p>3. Local Oscillator (LO) signal and</p><p>Loopback for Mega Switch</p><p>4. Unblank signal to Driver Module and magnet monitor</p><p>124</p><p>The VRE(Volume Reconstruction Engine ) replaces the Array Processor in the Signa</p><p>HDx, HDe and SV systems. It does the image processing and reconstruction functions</p><p>that were previously done by the Reflex AP's in the Excite2A and Excite HD systems.</p><p>The VRE in the SV system has only one ICN (Image Compute Node). The ICN is a Linux</p><p>PC in itself. One ICN is roughly equivalent to the processing power of a Reflex 800 AP</p><p>in the Excite HD. Whenever the system and/or MGD IP addresses are changed, the</p><p>VRE must reconfigure or it will not communicate with the system.</p><p>Sun 4100 and Sun 4170 can all be used in SV system. But because the Sun 4100 has</p><p>been end of life, only Sun 4170 is used in current system. But if Sun 4100 used in old</p><p>system is broken, you have to replace it with Sun 4170. During VRE Sun 4100</p><p>configuration, no OS disk is needed. But one specific OS disk for Sun 4170 is required</p><p>to be insert to the DVD driver in the host during VRE Sun4170 configuration.</p><p>VRF board contains an optical interface to receive scan data from Remote Receiver (RRx)</p><p>board, filters the data and DMAs the data to the ICN for image reconstruction. The VRF</p><p>board is physically installed in PCIs slot on the ICN. The VRF will receive an 80MHz</p><p>reference clock from the exciter board.</p><p>VRF is used in Sun 4100, and VRF2 is used in Sun 4170. The VRF2 is a redesign of the VRF</p><p>to change the FPGA from an Altera StratixGX device to an Altera ArriaGX device.</p><p>125</p><p>126</p><p>The SRFD3 RF Amplifier and Interface (SRFD3 Module) is the third phase in the development</p><p>of the Scaleable RF Driver (SRFD) subsystem. It is the first liquid cooled amplifier and lower</p><p>output power(10kW). The SRFD3 Module performs the following functions: Head/Body mode</p><p>switching, CAN communication link decoding, control and status communication between</p><p>the system and the RF amplifier, RF power amplification, and RF power sampling for power</p><p>monitoring by the Universal Power Monitor (UPM). The SRFD3 Module provides appropriate</p><p>test points, displays and adjustments to allow for calibration and troubleshooting in the field.</p><p>The SRFD3 Module will also incorporate water cooling for fan noise reduction.</p><p>The SRFD3 Module consists of five functional blocks: I/F Translation, Input Conditioning, RF</p><p>Amplifier, Output Conditioning and Input Power.</p><p>127</p><p>128</p><p>SRFD3 has been pre-adjusted in factory. You don’t need to adjust RF power on site during</p><p>installation.</p><p>Because the card 72 in the RF Power Measurement Kit is for 16KW power output, it is</p><p>necessary to modify the measurement method.</p><p>129</p><p>130</p><p>Performance:</p><p>Water cooling gradient system</p><p>Slew Rate: 100 T/m/s</p><p>G-Max: 33 mT/m</p><p>Input : 208VAC, 1A ; 200VDC&700VDC</p><p>Output: 300A for 100ms, 1400VDc</p><p>Cal/Function Check:</p><p>DC offset, DQA cal</p><p>Diagnostic:</p><p>Hammer, Frame/Clk test, ECC Verification, Hysteresis Static Test is obsolete.</p><p>FRU: XFA, XFD-PS, Control Boards</p><p>Install/Replacement:</p><p>1) Quick disconnecting design to facilitate the replacement.</p><p>2) Need to remove the leak sensor first to replace control board.</p><p>3) Super capacitor design of XFD-PS require ~30 minutes to discharge.</p><p>4) 87 Kg weight of XFD-PS. Need hoist tool</p><p>131</p><p>The XFD-PS is an IGBT-based switching Power Supply. It can output three sets of DC +200V,</p><p>+700V and -700V. The XFA needs the three kinds of voltages.</p><p>There are two serially connected 4.3 Farad supper capacitor (EDLC: Electrical dual layer</p><p>capacitor) in 200V DC power supply. By using super capacitor, the power of PDU can be</p><p>reduced.</p><p>132</p><p>The part is the 200V DC power supply for three XFAs and 200V to 700V DC-DC power supply.</p><p>133</p><p>134</p><p>Three sets of DC700V and -700V are isolated.</p><p>135</p><p>XFA is an IGBT-based switching amplifier. It provides a voltage to overcome the inductance</p><p>and resistance of the MR gradient coil. The XFD-PS powers the three XFAs.</p><p>Actually, the ideal output of XFA is a square wave. In order to decrease the time of rising</p><p>edge, XFA will output DC 1400V energized on the G-coil. After getting the top of square wave,</p><p>only 200V can sustain. The control board output the gate control signal to switch on or off</p><p>the IGBT to implement this function.</p><p>136</p><p>The XFD-PS weigh 87kg. Be strictly follow the replacement procedure in the service manual.</p><p>In case the connections are difficult to remove, follow Method B.</p><p>137</p><p>RF amplifier, gradient amplifiers and gradient power supply are all water-cooled in SV</p><p>system cabinet. Leak sensors are used to detect if there is leakage happened on any water</p><p>pipe connectors.</p><p>Leak sensor is composed of two parallel wires that terminated by a 8.3MOhms resistor at</p><p>one end. The electroconductive part of the wires are exposed every one centimeter. The</p><p>other end of the leak sensor are connected to the cabinet monitor.</p><p>• If the leakage sensor are broken, the resistance between A and B will be greater than</p><p>50MOhms. This will be labeled as SF (Sensor Failure) on the cabinet monitor.</p><p>• If any leakage happens, because the coolant resistance are less, the resistance between</p><p>A and B will less than 3MOhms. This will be labeled as LK (Leakage) on the cabinet</p><p>monitor.</p><p>• If there is no SF and LK, the resistance between A and B should be equal to 8.3MOhms.</p><p>According to three different resistance values, cabinet monitor can identify three status.</p><p>138</p><p>Leak sensors are classified three levels. Leak sensor 1 is the highest level, which is only used</p><p>in HDe system and will trip the PDU main breaker. In SV system, only Leak sensor 2 and 3 are</p><p>used.</p><p>Leak sensor 2 consists of three parts: Front, Bottom and Water Tray. Front sensor locates in</p><p>front of RF amplifier and XFD; Bottom sensor locates on the bottom of the system cabinet;</p><p>Water Tray sensor locates on the left side of tray. The three parts of sensor 2 are serially</p><p>connected and terminated on the water tray sensor.</p><p>Leak sensor 3 locates on the bottom of the water tray.</p><p>A fault on Leak sensor 2 will trip the E-Off.</p><p>A fault on Leak sensor 3 will produce an error message.</p><p>139</p><p>Function:</p><p>1. Cabinet monitor will trip the E-Off contactor in the PDU when</p><p>a) Leak Sensor 2 detects water leakage or are open</p><p>b) Temperature of system cabinet is over 45 degree centigrade</p><p>c) 4KW LCS or 8KW LCS/MCS stop working</p><p>2. Cabinet monitor only sends the error message to host through CAN link when</p><p>a) Leak Sensor 3 detects water leakage or are open</p><p>b) Temperature of system cabinet is over 40 and less 45 degree centigrade</p><p>c) Water level is low in any one of LCS or MCS</p><p>3. Cabinet monitor will trip the Night Mode contactor in the PDU when</p><p>The system haven’t scanned for one hour.</p><p>The Nigh Mode control signal is from IRF I/O board J23 to SCIF J101, then to SCIF J105, then to J10</p><p>in cabinet monitor.</p><p>4. Cabinet monitor will energize the Night Mode contactor in the PDU when</p><p>The system is running TPS reset or begins to scan.</p><p>5. Provide Isolated +24V DC power to whole CAN link.</p><p>Pump flow sensor and Tank level sensor are all Normally Closed switch, which means:</p><p>1. When LCS or MCS stop working, the pump flow sensor are close. And when they works normally,</p><p>the sensors are open.</p><p>2. When Tank level is low, the tank level sensor are close. And when the level is normal, the sensors</p><p>are open.</p><p>You can use DVM to check the resistance between the two sensor cables.</p><p>140</p><p>141</p><p>142</p><p>• PS for Mega SW & RRX provides three kinds of input voltage to Regulator Box through the</p><p>filters in the System Cabinet Interface Board(SCIF). But the cables from the SCIF</p><p>connectors to Regulator Box are very long, which will surely cause voltage drop on the</p><p>cables. The input voltage of Regulator Box must be within the required range with the</p><p>voltage drop. So the system uses two exactly identical cables and connectors to decrease</p><p>the voltage drop. The output power cables from Regulator Box to Mega SW are also two</p><p>exactly identical cables.</p><p>• Current SV system doesn’t have the individual 12V Power Supply, which</p><p>is for future use</p><p>to support MNS. That is why 3 out of 4 input LEDs and 5 out of 6 output LEDs are lit in the</p><p>Regulator Box.</p><p>• There are five voltage regulators to transform three kinds of input voltage to five kinds of</p><p>output voltage. Voltage Regulator Board monitors all regulated voltages using</p><p>comparator chips and sends status information (Power Good) to Mega Switch. Only when</p><p>all five regulator outputs are normal, then Power Good signal is Ok, which is a DC signal</p><p>ranged in 2.2 to 3.3V at pin 19 of J2.</p><p>• In the Mega Switch, the regulator just transforms the 6.85V input voltage to other three</p><p>kinds of output voltage. Mega SW also monitors the output voltage and send status</p><p>information, and this status information and Power Good signal will be sent to a logic</p><p>AND gate to get the Mega SW Power Good signal. Only when output of Voltage Regulator</p><p>Box and Regulator in Mega SW are both normal, the Mega SW Power Good signal is OK.</p><p>But this signal is not sent to RRX in SV system.</p><p>• Other input voltages to Mega SW except 6.85V just go through the Mega SW and are</p><p>directly sent to RRX.</p><p>143</p><p>All the input, output and power good LED indicators can be observed through the heat</p><p>dissipation holes of the Regulator Box. Due to no power supply for MNS, Input LED DS12</p><p>and Output LED DS1 are off all the time, and other LED indicators are continuous lit .</p><p>144</p><p>Voltage Regulator Board monitors all regulated voltages using comparator chips and sends</p><p>status information to Mega Switch.</p><p>The output from the monitoring circuit is buffered and sent to Mega Switch as a 3.3V digital</p><p>signal of wired-AND logic.</p><p>Diagnostic information is provided on the front panel via LED’s.</p><p>145</p><p>146</p><p>The Mega Switch can be divided into ten modules:</p><p>1. RF Router: It is a multi-way switch, which routes the four RF inputs to one RF outputs.</p><p>2. Loopback Interface: It is used to distribute loopback signal from Exciter to all receive</p><p>chain for R1 calibration and diagnostics.</p><p>3. Mixer Module: It amplifies the input RF signal according to R1 gain and transform its</p><p>frequency to 16MHz.</p><p>4. Driver Module Interface: It is the interface to supply the DC bias, DC power to coils and</p><p>other control signals.</p><p>5. RRX Interface: It communicates with the RRX by outputting the 16MHz RF signals and</p><p>receiving control signal from RRX.</p><p>6. CPLD: It provides the interface of the control signals.</p><p>7. SRI3 Interface: It communicates with SRI by transferring Coil ID and other control and</p><p>status signals.</p><p>8. Clock Interface: It filters the clock signal and makes some transformation,, then sends</p><p>the clock signal to RRX.</p><p>9. TNS (Transient Noise Suppressor): It receives noise from outside antenna and compares</p><p>with threshold and output control signal to RRX.</p><p>10. Power Interface: It regulates one DC Voltage from Regulator Box for internal using. A</p><p>power supervisor monitors the regulated power. Other DC Voltages are transferred to</p><p>RRX directly.</p><p>147</p><p>1. The Mega Switch provides the RF routing circuit which routes the four RF inputs to one RF</p><p>outputs. The main functions of the RF router block are as following.</p><p>• Provide the receive Interface of RF signal</p><p>• Route the RF receive signals to proper down conversion channels.</p><p>• Provide protection circuitry at each RF signal input to protect the components from being</p><p>damaged by the transmit RF signal during scan, ESD(Electronic Static Discharge) in</p><p>installation and other occasions.</p><p>2. Loopback interface is used to distribute loopback signal from Exciter to all receive chain</p><p>for R1 calibration and diagnostics.</p><p>• R1 calibration is very important in SV system. It is performed when resetting TPS and</p><p>rebooting the system every time. Loopback signal is split into eight separate but equal</p><p>signals and are sent to each receive channel via SPDT(Single-Pole Double-Throw)</p><p>switches in the RF router, then to Mixer Module for amplifying and mixing, then output to</p><p>RRX.</p><p>• Meanwhile, system will set the R1 value from 13 to 1, and send them to RRX via DVMR</p><p>link. Then RRX sends the R1 data to Mixer Module in Mega Switch. Eight Mixer Modules</p><p>amplify or attenuate the loopback signal according to different R1 value.</p><p>• In VRE, system will check the signal power of every channel when R1 value is from 1 to</p><p>13, if the signal level is in the specification, R1 calibration is successful and system can go</p><p>to next step. But if it fails, system will report R1 calibration failure and stop.</p><p>• If RF disable switch is located in disable mode in Exciter, system will not get loopback</p><p>signal during TPS resetting rebooting, this will cause system fail.</p><p>148</p><p>149</p><p>4. Driver Module Interface has the following functions:</p><p>a) Multi Coil TR Bias</p><p>The Mega Switch receives Multicoil TR bias (MCB) from the Driver Module Lite and these signals are</p><p>routed to each coil port.</p><p>The MC TR bias is specified as following:</p><p>MC TR bias input (Transmit Mode) supplied by Driver Module MC Driver board +3, +5 or +7V +/- 0.1V @</p><p>500mA</p><p>Maximum MC TR bias input (Receive Mode) supplied by Driver Module MC Driver board -5 V +/- 0.1V @</p><p>500mA</p><p>b) Control Signal of RF Routing</p><p>The Mega Switch receives a 16 bit serial stream of data to control RF routing from the Driver Control</p><p>Board within the Driver Module on differential lines (DATA, STROBE, OE), converts these lines to digital</p><p>signals (data, strobe, enbale), and converts this serial data to parallel signals.</p><p>c) Power Supply From Driver Module</p><p>The Mega Switch receives +15V and –15V powers from the Driver Module Lite. These supply voltages</p><p>are used for each coil port, Body Preamp Bias Power. +10V power which is used for each coil port is</p><p>generated by linear regulators from +15V. Note that +10V is not supplied to the Legacy port, only +/-</p><p>15V are supplied.</p><p>d) Body Preamp Bias and Over Current Detect</p><p>The Body preamp inputs are biased with 15Vdc supply from the Driver Module through a inductor at</p><p>all times (Bias-T). This bias circuitry has PTC resettable fuse and detects over-current state, and</p><p>allows bias output current to 300 mA flows to the preamps at maximum. The intent of this method is</p><p>to protect the circuit traces and coaxial cables in the event of a shorted preamp or cable. A voltage</p><p>comparator circuit is provided to determine when such a fault condition has taken place. The</p><p>comparator’s output will remain Low so long as the bias circuit in over-current detected state. While</p><p>the comparator output is Low, yellow LED will remain illuminated.</p><p>150</p><p>6. The control signals from the Driver Module is decoded and the following signals are</p><p>generated.</p><p>• RF Router Control Signals (To RF Router Block)</p><p>• RRx Reset Signal (To RRx)</p><p>• External MUX Control Signals (To Coil Ports) : The CPLD just pass though this signal to each</p><p>Coil Port.</p><p>• Body Select Signal (To RF Router Block)</p><p>• Loopback Select Signal (To RF Router Block)</p><p>The control signals from the RRx Module is decoded and the following signal is generated.</p><p>• R1 Control Signals (To each Mixer Module)</p><p>• RCVR_UNBLANK</p><p>The CPLD provides the control signals to switch the receive path to loopback circuitry</p><p>when the UNBLANK signal is Logic Low (Blank state).</p><p>7. SRI3 interface consists of the following signals.</p><p>• COIL ID and HART</p><p>• COIL Present</p><p>• Body Transmit ENBL</p><p>• COIL LED</p><p>151</p><p>8. Clock Interface</p><p>The Mega Switch receives 80MHz Master Clock from Exciter. The clock signal is band pass filtered to</p><p>reduce the noise from the system, and routed to a LVPECL buffer to convert sine wave to LVPECL</p><p>signal. The converted clock signal is transmitted to the RRx module through TNS interface connector.</p><p>9. TNS (Transient Noise Suppressor)</p><p>The Mega Switch detects the possible occurrence of a significant transient noise event using a BNC</p><p>connected independent loop antenna. The RF signal from the antenna is bandwidth limited and</p><p>applied to a logarithmic (dB power to V) amplifier device, the output of which is compared to a</p><p>threshold provided by the RRx Module. 8bit D/A converter</p><p>is used to generate the threshold level</p><p>voltage in the RRx module and the threshold level can be set to a value in the D/A Converter’s output</p><p>range. If the threshold is exceeded, a transient detect flag will be output to RRX.</p><p>10. Power Interface</p><p>a) Power Connector</p><p>The Mega Switch receives the supply voltage from the external power supply. The Mega Switch</p><p>provides a stacked SubD 37 pin female connector to receive 6V85_A, 6V85_D_RRx, N6V85_A,</p><p>5V05_A_RRx, 5V05V_D_RRx, 3V16_D_RRx and Power Good (PG) Signals. The pin assignment of the</p><p>power connector is the same to each other to for failsafe. The Mega Switch doesn’t use all of these</p><p>supply voltages mentioned above, just uses 6V85_A and N6V85_A. 6V85_A is regulated to 6V_A and</p><p>5V_A, and 5V_A is regulated to 3V3_D on the board, respectively. The received supply voltages are</p><p>distributed to the RRx Module and / or the MNS upconverter.</p><p>b) Power Supply Supervise</p><p>The Mega Switch provides the supervise circuit for the 6V regulator. The supervise circuit provides</p><p>the power good (PG) signal. Also, the Mega Switch has an interface to receive the PG signal from the</p><p>Regulator Box, which is the power supply board for the Mega Switch and RRx. The power good</p><p>signals are High in normal operation, but become Low when the regulated voltages become out of</p><p>the specified range. These two PG signals are fed into CPLD on the Mega Switch, and the CPLD</p><p>generates a signal which is AND logic output of these two PG signals. This signal from the CPLD is</p><p>passed to the RRx Module as the “ MegaSW_PG” signal.</p><p>152</p><p>153</p><p>The Remote Receiver’s main function is to provide analog and digital signal processing and</p><p>A/D conversion for 8 channels of data.</p><p>Key functions of the RRx Module are:</p><p>- 16-bit Analog-to-Digital conversion</p><p>- Digital decimation and filtering</p><p>- Synchronous transfer of 8 channels of 18-bit two’s complement I-data and Q-data from</p><p>the FPGA over the DVMR Common Communications link at sample rates of 500kHz (+/-</p><p>250kHz)</p><p>- Communication link to and from Megaswitch for diagnostic and control signals</p><p>- Control of TNS section of Megaswitch module and TNS notching for receiver channels</p><p>- Read of board type – needs to indicate an 8ch vs. 16ch RRx module</p><p>- Read of board status</p><p>154</p><p>LED DS2, DS3, DS4 used to identify the Receiver Module number in binary format. LED DS1 is</p><p>used to indicate when the Mega Switch +3.3V incoming power is good and is not lit when</p><p>either the Mega Switch power is down or the cable into connector J1 is not connected. DS1</p><p>is used to prevent a false RRX1 indicator, where Port ID is equal to ‘000’. All of these LEDs are</p><p>powered by the Mega Switch +3.3V power.</p><p>155</p><p>Pin function in Port A Connector:</p><p>A1, A2: Coil present</p><p>A3 ~ A10: M0~M4 signal from Mega SW to control multicoil</p><p>C1 ~ C4, D1 ~ D4: Ch1 ~ Ch8 preamp out, no bias, DC blocked</p><p>E1: Transmit signal up to 2KW for 1.5T or 4KW for 3.0T. Peak Power</p><p>E6: Reflected power to 50ohm load, 2.5KW Peak Power, 50W RMS</p><p>F1 ~ F8, G1 ~ G8: Multicoil T/R bias</p><p>F9, F10: To detect if this coil needs body coil to transmit</p><p>G9, G10: To detect if this coil needs system preamp to amplify</p><p>I2, I5: 15VDC for aux & preamp power</p><p>I3, I6: 10VDC for aux & preamp power</p><p>I4: -15VDC for aux power</p><p>I7, I8: Coil ID</p><p>I9, I10: Coil present’</p><p>156</p><p>• Fixed table has no Dock and Undock function like detachable table. Up and down of fixed</p><p>table are implemented by actuator, which is driven by electrical motor. The table can go</p><p>up and down very smoothly with very low noise compared to the detachable table. And</p><p>there is no other mechanism to drive fixed table up and down.</p><p>• The control box for fixed table is newly designed.</p><p>• The longitudinal movement of the cradle is driven by longitudinal motor located in the</p><p>rear pedestal. It is same as HDe.</p><p>• The cover of the cradle is reinforced to protect the embedded Express PA coil from</p><p>damage. The cradle with the Express PA coil moves the patient into and out of the</p><p>magnet bore.</p><p>157</p><p>There are five limit switches in the Fixed table.</p><p>1. One Home Sensor Limit Switch. Only when cradle moves to the home position, the Home</p><p>sensor Limit Switch will be activated to allow the fixed table to be moved up and down. It</p><p>can only be accessed for service by removing the top right cover.</p><p>2. Two Up Limit Switches and Two Down Limit Switches. (Shows the logic position diagram of</p><p>the four limit switch) This diagram shows the logical position relationship of the four limit</p><p>switches. Only Up1 Limit Switch locates on the fixed table frame. The other three limit</p><p>switches integrate in the actuator. When the table is going down, Down1 LS will be</p><p>touched first, then fixed table will stop if Down1 LS is OK. But if the Down1 LS doesn’t</p><p>work, the table will keep going down, Down2 LS will be touched and the table will stop. It</p><p>is same for Up1 LS and Up2 LS. In normal situation, only Up1 and Down1 will be touched.</p><p>Up2 and Down2 LS are redundant to assure the table can stop at UP and DOWN limit</p><p>position in case Up1 or Down1 LS are broken. The highest position of the fixed table can</p><p>be determined by adjusting the position of the UP LS Actuator. Only when the fixed table</p><p>is on the top height, the cradle can be moved in and out.</p><p>158</p><p>The table control board is a newly designed part, which is fixed on the dock frame shipped</p><p>with the fixed table package.</p><p>• PS for PHPS-LITE2 supplies DC 42V power as the input of table control board through SCIF</p><p>board. Then table control board outputs two direction power to the electrical actuator in</p><p>the fixed table. When the up or down foot pedal is pressed down, the table will move up</p><p>or down. And when the Up limit Switch or Down limit Switch is activated, the table will</p><p>stop.</p><p>• Table control box transfers the table vertical position information to SRI. When the table</p><p>is on the highest position, SRI will output Enable signal to PHPS Lite2 to enable the</p><p>longitudinal movement of the cradle. And it receives 8V power from the SRI for its logic</p><p>circuit working. The signal ground is connected to table control box shell through fasten</p><p>screw.</p><p>159</p><p>Please refer to the service method 5364191-2EN 'Replacement / Fix Table / TABLE</p><p>ELECTRICAL ACTUATOR' for the detailed procedure.</p><p>160</p><p>Express coil consists of three coils: HNA, AA and PA.</p><p>1. HNA and AA can’t be used together because of one port A.</p><p>2. HNA and PA can use together.</p><p>3. AA and PA can use together.</p><p>161</p><p>HNA coil consists of three parts: Anterior part, Posterior part and Horseshoe adapter.</p><p>There are 14 elements in HNA. Not all the elements will be used during scanning. Different</p><p>elements will be used in different scan mode.</p><p>HNA itself has four scan modes, which are Brain, NV, C Spine, C spine with adapter. And CT</p><p>Spine mode can only be available when combining HNA and PA.</p><p>162</p><p>AA coil consists of four elements. It can’t be used independently, and must be used with PA</p><p>coil, which their combination is functionally similar to 8ch Body Array or 4ch Torso Array.</p><p>They have three scan modes – BodyArray12, BodyArray_23 and BodyArray_34, which will</p><p>be shown on the next slide.</p><p>163</p><p>PA coil consists of 12 elements. In the surface of cradle, there are coil marker from 1 to 4.</p><p>Every one marker contains of 3 elements. They have three scan modes – SpineArray_12,</p><p>SpineArray_23 and SpineArray_34.</p><p>164</p><p>This table shows all the scan mode which the HNA, AA and PA have, and which elements will</p><p>be used in different mode.</p><p>165</p><p>There are three modes for Express coil MCQA. Phantom position and landmark position</p><p>would be strictly followed otherwise failure of MCQA. Be sure to use the foam pad in the</p><p>HNA when scanning HNA+PA mode and HNA with Adapter + PA mode. Please refer to</p><p>specific procedures of Express coil MCQA in the service manual.</p><p>166</p><p>• Automatic coil selection function can simplify the scan operation. The operator doesn’t</p><p>have to know exactly what scan mode should be selected. The system can automatically</p><p>select</p>
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