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GE Healthcare

MR5047 SV

Lab Guide

Page: 2 of 24

1. System Geography Lab

Description:

The purpose of this lab is to investigate and identify the major

components of the MR360 / MR355 System.

Time Required:

1 Hour

Learning

Objective(s):

Identify the major subsystems and functions of the SV system

Support Materials

Required:

Service Methods procedures – 5364191, on disk, or as loaded onto

system computer

Tools Required:

Handout as provided

Safety

Considerations:

Follow all LOTO procedures. They are posted in the lab as well as

incorporated as subset of documented procedure.

Steps:

System Power-Down

Follow software and power shutdown procedure in Service

Methods 5364191
a.

Shut down applications and turn system power off.

System Components Geography

Using the handout provided:

Match the subsystems and component names to the boxes

indicating their location. Open cabinet doors for interior

identification

Remove covers as needed, for interior identification

For Simple Operator Console

Remove cover and expose right side components to view

location.

Do not disconnect any cabling

For Magnet

Remove cover and expose left side components to view
locations

Do not disconnect any cabling

For Penetration Panel

Remove access panel from scan room side to view locations.

Do not disconnect any cabling

For Rear Pedestal

View component locations

Do not disconnect any cabling

Содержание BRIVO MR355

Страница 1: ...OPTIMA MR360 BRIVO MR355 FULL SERVICE TRAINING REV 1 5 ATC MR INSTRUCTOR XIAO XIAO GE ASIA TRAINING CENTER ...

Страница 2: ...ourse Introduction Safety 1 Module 2 System overview 14 Module 3 New User Interface and Software Operation 65 Module 4 Architecture Hardware 87 Module 5 Calibration Diagnostics 169 Lab Guide Component Identification 193 ...

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Страница 6: ...4 Excite HD training is a pre requisite for this course If you haven t been trained on Excite HD it is mandatory to get the HD training before you will be able to be successful in the SV course ...

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Страница 9: ...cut process for LOTO A shortcut that produced one set of desired results on an older piece of equipment may not produce the same set of desired results on the new piece of equipment Complete the required MR512 MR Magnet and Cryogen Safety course before attempting to service a magnet or work with cryogens Note to instructors You can embellish as you wish since you both use different slides for safe...

Страница 10: ...t and anything that may be a ferrous material The 3T magnetic field requires extreme caution Be alert for ferrous materials when performing replacement procedures in the scan room Note that on 3T systems even non ferrous tools are slightly ferrous Follow all service documentation procedures The System Pre Installation manual shows magnetic field strengths at different distances from the magnet ...

Страница 11: ...9 The portable GasWatch2 Oxygen sensor as pictured above part number is 5111049 ...

Страница 12: ...e gas cylinders must be strapped down and when not in use have their cap on also be very careful of the dewars In most cases Air Products or a cryogen contractor will take care of this task but you should be aware of this in case you need to perform it Frostbite Distance and Time Frostbite Protection ...

Страница 13: ... under Lock Out Tag Out Note that for SV all LOTO procedures involving LOTO of the SYSTEMS CABINET require shut down of the Simple OC first This is because powering down the Simple OC ensures correct soft power down of the Image Compute Node The ICN MUST be shut down via a soft power down in order to avoid operating system corruption ...

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Страница 19: ...inet HFD cabinet and part of penetration panel are combined in one compact cabinet Components in the compact cabinet are new designed except for GP3 Term Server and HUB Equipment in Operator room is simplified Fixed table with the express coil in the cradle will relieve the operator s labor for changing coils Three parts in Magnet side kit are new designed for SV ...

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Страница 22: ...ma MR360 Brivo MR355 1 5T Service Methods Replacement Magnet Enclosure Magnet Enclosure Table of Contents you will see the same diagram with clickable links for each component These links will take you to the procedures for removing and reinstalling the covers ...

Страница 23: ...appearance Now have words written next to the buttons Languages specific control panels are shipped with the Keyboard collectors in above mentioned systems May be removed independently Are secured with poppers and attached to hidden cables Be sure to follow all procedures in MR Service Documentation when removing any cover Note Top Laser Light is now housed inside the top display panel Use caution...

Страница 24: ...ls with or without preamps Preamp or non preamp path is controlled by shorting pins on Port A in the coil connector Head Tx RF is routed through the interface module this is done to tap off the head T R bias Head T R bias is used for preamp protect switching in the interface module Multi Coil bias is added to the RF coax lines in the port connectors Bias is added to Port A in the Multicoil Interfa...

Страница 25: ... located on the Magnet Side kit 2 LED Power Box is introduced which is the power supply for SRI PAC Patient alignment laser and bore light 3 Dummy load is moved to rear pedestal from the LPCA 4 Hybird TNS antenna motor encoder assembly encoder box and communication box have no change They are same as the parts in HD system ...

Страница 26: ...re both newly designed components Regulator Box regulates the DC power from DCPS for Mega SW RRX Mega SW combines the function of 8ch switch MUX UTNS and receiver RRX used in SV system is 8 channels Mega Switch select different input RF signal and amplifies them according to R1 value and transform the center frequency of RF signal to 16MHz then send them to RRX RRX converts the analog RF signal to...

Страница 27: ... to the detachable table And there is no other mechanism to drive fixed table up and down The control box for fixed table is newly designed The longitudinal movement of the cradle is driven by longitudinal motor located in the rear pedestal It is same as HD The cover of the cradle is reinforced to protect the embedded Express PA coil from damage The cradle with the Express PA coil moves the patien...

Страница 28: ...face board of PA coil located on the bottom of the cradle Two cables always connect the PA interface board and Mega Switch by Convert Board located under the foot pedal cover which one cable is for receiving RF signal from PA coil and Multicoil bias and another cable is for providing DC power for PA coil Because it is a little difficult and time consuming to disassemble the cradle and handling PA ...

Страница 29: ...27 The trough on the newly designed Front Bridge is used to holding the cable track on the bottom of the cradle ...

Страница 30: ... and simplication some coils use the unified phantom to replace their own phantom Refer to service manual for detail procedure of SNR test Unified phantom also can be used in HDe HDx after the corresponding service pack is installed ...

Страница 31: ...h the host via USB As the mouse keyboard and monitor are all black we can t leave the SCIM behind Nothing about the SCIM s has changed except for the color The biggest change you ll see at the operator workspace is the reduction from two screens to one larger wide screen monitor The user interface has been updated so that all information from both screens is now on the widescreen ...

Страница 32: ...he function of RFS HFD cabinet and part of penetration panel The following two slides show the inner components under the covers Note 1 Store L R cover carefully to prevent the distortion 2 Take care of G Filter and power panel when moving the cabinet ...

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Страница 34: ... There are three access window on the back of the system cabinet 1 Access window for back of CAM Lite2 and GP3 ICN are used during installation 2 Access window for PDU FRU only be used during replacement ...

Страница 35: ...s three gradient amplifiers XFA and one gradient power supply XFD PS They are all water cooled A leak sensor is installed in front of XFD to detect leakage of water pipe connectors XFD slew rate is 100 which is twice as much as HFD lite used in HDe system ...

Страница 36: ...XFD PS in SV system XFD PS power output and XFA power input are used plugs and sockets which is connected by a newly designed component Power panel And XFA gradient output are also used plugs which is directly connected to G Filter With this kind of structure it is more convenient to swap XFA than any previous system when troubleshooting ...

Страница 37: ...FD PS It can be accessed by removing its cover in the magnet room If the power panel needs to be replaced be assure to wait for at least 15 minutes after XFD power off And the nethermost plug must be removed before removing other plugs ...

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Страница 40: ...here are 108 screw holes on the frame connected to the system cabinet But only 60 screws are supplied Fix the System Cabinet with washer and screws at every two hole pitch Do not install screw in every hole ...

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Страница 42: ...otation is incorrect there is no indication of power to the system Swap two phase leads observing LOTO precautions The 4KW LCS doesn t have this requirement On the top of system cabinet there are only one terminal connected to MCS or 8KW LCS so if the configuration has another 4KW LCS it will get AC power from the 8KW LCS ...

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Страница 46: ...er The water should meet the specification in the pre installation manual In not it is possible to damage our equipment In Type D the BRM chiller and Air cooled cryogen compressor are only available to 200V AC power input So the facility power can only be 200V AC Type E is only for EMEA A 3 Phase AC stepdown transformer should be installed which supplies the 200V to BRM chiller ...

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Страница 57: ...tion of outdoor water chillers the vendor used different valves for connection The quality can t be assured by this way Now the Plumbing Assy will be shipped to site according to the different configuration of cooling system ...

Страница 58: ...ptima MR360 can provide affordable versatile MR scanning to meet everyday patient needs with uncompromised uncompromising imaging workflow service and support For the customers who are new to MR system they will learn to use Brivo MR355 without too much training Function of Simple UI makes scan operation much easier than any previous MR Note OIC Outpatient Imaging Center ...

Страница 59: ...n general Optima MR360 Brivo MR355 have the same basic hardware configuration Fixed Table with Express coil can be used in both Optima MR360 and Brivo MR355 Detachable Table can only be used in Optima MR360 ...

Страница 60: ...use all kinds of coils Brivo MR355 has four kinds of configurations Only the coils included in the configuration can be used which is controlled by the Option key There is no CoilConfig File in SV which is replaced by CoilDB CoilDB is a predefined Coil Database which stores the config information of all coils Users can t add delete and modify coil config information in CoilDB but can view the cont...

Страница 61: ...oil can be used In Brivo Premium configuration 10 coils can be used including the Quad extremity 3 channel shoulder coil and the 8 coils in Main configuration So only the coils included in the configuration can be used For example 3Ch Shoulder coil can t be used in Brivo Main and Brivo Main Knee configurations Be sure to confirm what kind of configuration is in your site before using any coils oth...

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Страница 63: ...system For type B of HDe with water cooled shield cooler shield cooler must be removed and will be replaced by F 50 For type B of HDe with air cooled shield cooler shield cooler will be reused No need to remove Optima MR360 configurations upgraded from HDe are Type C and Type D with detachable table For detailed information refer to Signa HDe to Optima MR360 System Upgrade Manual P N 5410639 1EN R...

Страница 64: ...Brivo MR355 can be upgraded to Optima MR360 after uninstalling the previous one of Brivo option keys and installing MR360 Option Key No hardware change is needed 62 ...

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Страница 70: ...protocol selector window It has two kinds of favorite protocols Ready Favorite Protocols also called Ready Shortcuts Custom Favorite Protocols also called custom shortcuts Ready Favorite Protocols are predefined and cannot be changed by users User can define Custom Favorite Protocols from any protocols 68 ...

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Страница 72: ...odes at any time except after the task is saved The inexperienced users can finish the routing scan in Simple UI Basic Scan Mode is designed for the routine examination Most of all scan parameters are hidden to simplify the visual look and avoid changing the parameter without careful management on the image quality The Slider Bar is the way to select different sets of the scan parameters 70 ...

Страница 73: ...The Advanced Scan Mode and Expert Scan Mode is to control all scan parameters in detail The scan mode can be switched when the Mode change button is selected 71 ...

Страница 74: ...Default Scan Screen mode can be set as System Preference The default Scan Screen mode applied at the beginning of the exam Note Scan Screen mode is kept in a exam until the mode is changed 72 ...

Страница 75: ...Slider Bar protocols are not allowed to save and duplicate Proto Copy will be helpful to make the protocol from images scanned with the Slider Bar protocol The protocol generated by Proto Copy includes just one scan parameter set of the Slider Bar protocol 4 Slider Bar function doesn t apply to all the protocols Only the protocols in the above list are OK to use The protocols selected from the Rea...

Страница 76: ...Protocol Selector are totally different from the previous version There are the specific user interface for Adult and Pediatric protocols 74 ...

Страница 77: ...Protocol Template only can be accessed in GE protocol library In this template all the common used protocol can be found 75 ...

Страница 78: ...Image can be previewed in this new version of Image Management 76 ...

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Страница 83: ...You can access the same diagnostic items by System Function or Hardware Location Their functions are same 81 ...

Страница 84: ...ion NOTCE IP protection is just available in China as pilot prior to M4 The design will be improved based on the field feedback The global deployment plan will be finalized prior to M4 Main function consists of Optional Default is active iprotection option disable it Only lock Class C M tools USB service key shall be presented Auto run User generate the activation key by themselves B S structure w...

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Страница 86: ... to maintain a log of the discussion that occurred between site personnel and the engineer The service engineer is also able to communicate with the customer about work that was done after hours at that site 2 Planned Maintenance Service Report The Field Engineer primarily uses this page to communicate to the customer any PM information from planned maintenance service calls An FE or OLE may creat...

Страница 87: ...In SV systems it is easy to enable or disable autologin function If the current mode is unclear use the STATUS function to check 85 ...

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Страница 92: ...s terminator resistor to balance the impendence of the network One 120ohms resistor is embedded in the SCP3 board and another 120ohms resistor is installed on the farthest node Cabinet Monitor 4 The DC24V ISO power is provided by Driver Module in HD HDx system In Emergency Off mode Driver Module will lose power and the CAN link is broken The system requires a TPS reset after power restoration In S...

Страница 93: ...uption ALWAYS follow service procedures when removing power to ICNs shut them down via a soft power off at the GOC not by pushing the power button on the ICNs themselves or by pulling the power cord We will say this many times in this training In addition removing power to the Systems cabinet or RF Systems cabinet without properly shutting down the Volume Recon Engine subsystem will induce the pos...

Страница 94: ...VRF installed a VRE IRF3 board is the interface of DVMR link 1 DATA TRANSFER FROM CAM TO REMOTE DEVICES Data transfer from CAM to the remote devices includes both synchronous and asynchronous data The Sequence Bus which contains SSP Sequence Scan Protocol Commands RF data and gradient data is the source of synchronous data The CAM CPUs via the PCI bus are the sources of asynchronous data Asynchron...

Страница 95: ...mplifies the selected signal and converts them to intermediate frequency signal which center frequency is about 16MHz Then RRX gets the eight channel RF signals and digitizes them with ADC and converts them to optical signal and send to VRF in VRE via VRF Data Link VRF converts the optical signal to electrical signal and filters them then sends them to ICN for image reconstruction Then the reconst...

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Страница 98: ...and sends to UPM1 UPM2 RF amplifier interface board and SRFD3 On the other hand Unblank and AC Power Sense signal will be sent to the Magnet Monitor 1 Unblank signal may aid in executing ADC algorithms for improving accuracy of the sensed ADC inputs that have spikes due to RF noise coupling 2 Power Sense indicates whether or not the System Cabinet is powered up The resulting state shall be made av...

Страница 99: ... audio communication between operator and patient It locates in the host PC and is mounted on one PCI socket But PCIAA has no any electrical connection with PCI socket only occupies one PCI slot to fix The cable E3047 between SCIM and PCIAA are new designed part The mouse are keyboard are all USB port ...

Страница 100: ...e OC It is suggested that the service key had better to be inserted in the rear USB port The Option keys are bounded to the ethernet card built in the main board But the main board is not a FRU The whole PC has to be replaced if the main board doesn t work and all the software options has to be regenerated in the eLicense website The following is the FRU List in Simple OC Host PC THTF M10 Memory 2...

Страница 101: ...o are all executed by this driver It is fixed by two screws on the left side There are no fixed screws on the other side It is easy to be pulled out with a little of force after removing the screws The glue on the bracket of the memory socket is to assure that the memory will not become loose during transportation Be careful to remove the glue when replacing the memory ...

Страница 102: ...100 This slide shows the detailed configuration of THTF host ...

Страница 103: ...djustment potentiometers on the PCIAA extended board for adjusting patient and operator voice levels The Minimum Patient Speaker Volume is fixed there is no adjustment for it It is easy to forget to connect the power cable to the PCIAA Be sure that it s been connected before you close the host cover Otherwise TPS reset will not respond ...

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Страница 107: ... short circuit trip on input power as on other systems There are two cables connected to the PDU control board E Stop control cable are connected to three emergency off button Another cable is from cabinet monitor which trip E off contactor when issues are detected and switch on or off Nigh mode contactor When the PDU is initially installed all breakers are off Be sure to observe the correct order...

Страница 108: ...ain Breaker Trip Control Refer to 2 c in this page Control signals to Control Board 1 Input control signal a EMO Reset Button Control This signal is from EMO Reset Button E off contactor and Night Mode contactor will be energized after pressed this button b E Stop Control This signal is from outside E Stop circuit Refer to the next page E off contactor and Night Mode contactor will lost power when...

Страница 109: ...er Trip Control In HDe system when leak sensor 1 detects any leakage cabinet monitor will send control signal to PDU to trip the Main Breaker The whole system will lost power input But in SV system leak sensor 1 is removed So this signal is not used in SV any more although the control circuit is still there ...

Страница 110: ...108 MPS Magnet Power Supply is for ramping up power supply It will have no output after E stop contactor is tripped ...

Страница 111: ...W RRx 9 25V 9 75V 6 625V DCPS LED Power includes the following power and signal 1 Provide 24V 15 25V 15 25V 5V_PAL For Patient Alignment Laser and 5V_BL For Bore Light to LED Power Box 2 Output Mag_DC_OK status signal to PHPS Lite2 3 Receive control signals from PHPS Lite2 including Remote On Off signal of BL and PAL DCPS PHPS Lite2 includes the following power and signal 1 Provide 42V and 8V to P...

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Страница 113: ...Lite2 2 Basic principle The PHPS Lite2 is mounted in the Cabinet It consists of a PHPS Control board a CAN Communication Core CCC Board which is physically mounted as a daughter board on the control board and a pulse width modulated Servo amplifier DC 42V and 8V are supplied from the outside Power Supply for PHPS Lite2 This power in turn is used to generate regulated 5V and 3 3V locally for use on...

Страница 114: ...l motor 3 The CAN Core Communication CCC board monitors the health of the power supplies and the status of the servo amplifier and communicates this information to the host The CCC board receives power supply voltages digital I O signals and analog inputs corresponding to the power supply voltages from the Control Board The digital I O of the CCC operates at 3 3V so all logic levels must be conver...

Страница 115: ...onents of the Multi Generational Data acquisition chassis MGD and Amplifier Support Controller ASC chassis into one unit on HDe forward production Systems cabinets The CAM Lite chassis combines the individual ASC and MGD boards into a common chassis There is no change in functionality ...

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Страница 118: ...ndancy and the Amplifier Interface AIF circuit cards for the Narrow Band NB The functions within this custom bus segment communicate to the MR system utilizing CAN via the midplane A single board computer AGP2 serves as the cPCI bus segment masters A third processor board SCP3 provides serial interface functions and house a CAN mezzanine card The GEHC custom boards IRF I O SRF TRF and STIF interfa...

Страница 119: ...dow shows 820 when we reset TPS while logging in AGP to monitor it status using command mgd_term AGP coordinates the work of the IRF IRF I O SRF TRF and STIF Boards to create the digital RF and gradient data needed to generate the scan waveforms The top cable equipped with the male RJ 45 connector provides an Ethernet link between the Host and the AGP During a TPS Reset PSD data download from Host...

Страница 120: ...el Ethernet port the SCPIII hosts a 10 100 1000BaseT port as compared to the 10 100BaseTX Ethernet port on the CPV 3060 CANBus interface ports SCPIII provides two front panel CANBus 2 0 interfaces on the main board in place of the ESD Electronics PMC331 1 CANBus controller module provided with the CPV 3060 All front panel and primary backplane I O functions of the SCP2 are maintained on the new bo...

Страница 121: ...s is the default clock mode of the IRF3 Note that system operation is asynchronous in this mode The IRF3 includes a front panel reset push button for CAM chassis reset The debounced switch drives the backplane reset request to the backplane system slots with a pulse of at least 100ms to initiate a PCI reset The IRF3 interfaces to the CAM system through the backplane These interfaces include the 32...

Страница 122: ...n of excessive power conditions The UPB will communicate status and fault error conditions to the system through CAN as well as supporting inter module communications as necessary In SV and HDe system RF AMP Interface board AMPIF is introduced to support SRFD3 The AMPIF receives NB UNBLANK signal from the Driver Module and passes these UNBLANK signal to the RFPA When RF Output Power is above the l...

Страница 123: ... 8 MCD 0 7 J5 Multicoil T R Bias to multicoils 3 5 7 5VDC 0 5A 9 Unblank signal input J19 from Exciter goes to CAM Lite2 J11 J12 J13 DM can disable RF by disabling Unblank if bias faults 10 CAN link J1 J2 come from PHPS Lite2 go to GP3 from DM 11 HV TR DD MC Fault Disable Switches service facilities in DM 12 Serial High speed data input J4 This input will provide the high speed differential data n...

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Страница 125: ...Outputs 1 Analog RF excitation signal 2 80MHZ Clock signal to VRF IRF3 Mega Switch and RRX via Mega Switch 3 Local Oscillator LO signal and Loopback for Mega Switch 4 Unblank signal to Driver Module and magnet monitor ...

Страница 126: ... processing power of a Reflex 800 AP in the Excite HD Whenever the system and or MGD IP addresses are changed the VRE must reconfigure or it will not communicate with the system Sun 4100 and Sun 4170 can all be used in SV system But because the Sun 4100 has been end of life only Sun 4170 is used in current system But if Sun 4100 used in old system is broken you have to replace it with Sun 4170 Dur...

Страница 127: ...he ICN for image reconstruction The VRF board is physically installed in PCIs slot on the ICN The VRF will receive an 80MHz reference clock from the exciter board VRF is used in Sun 4100 and VRF2 is used in Sun 4170 The VRF2 is a redesign of the VRF to change the FPGA from an Altera StratixGX device to an Altera ArriaGX device 125 ...

Страница 128: ...rol and status communication between the system and the RF amplifier RF power amplification and RF power sampling for power monitoring by the Universal Power Monitor UPM The SRFD3 Module provides appropriate test points displays and adjustments to allow for calibration and troubleshooting in the field The SRFD3 Module will also incorporate water cooling for fan noise reduction The SRFD3 Module con...

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Страница 130: ...been pre adjusted in factory You don t need to adjust RF power on site during installation Because the card 72 in the RF Power Measurement Kit is for 16KW power output it is necessary to modify the measurement method ...

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Страница 132: ...QA cal Diagnostic Hammer Frame Clk test ECC Verification Hysteresis Static Test is obsolete FRU XFA XFD PS Control Boards Install Replacement 1 Quick disconnecting design to facilitate the replacement 2 Need to remove the leak sensor first to replace control board 3 Super capacitor design of XFD PS require 30 minutes to discharge 4 87 Kg weight of XFD PS Need hoist tool ...

Страница 133: ... output three sets of DC 200V 700V and 700V The XFA needs the three kinds of voltages There are two serially connected 4 3 Farad supper capacitor EDLC Electrical dual layer capacitor in 200V DC power supply By using super capacitor the power of PDU can be reduced ...

Страница 134: ...132 The part is the 200V DC power supply for three XFAs and 200V to 700V DC DC power supply ...

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Страница 136: ...134 Three sets of DC700V and 700V are isolated ...

Страница 137: ... XFD PS powers the three XFAs Actually the ideal output of XFA is a square wave In order to decrease the time of rising edge XFA will output DC 1400V energized on the G coil After getting the top of square wave only 200V can sustain The control board output the gate control signal to switch on or off the IGBT to implement this function ...

Страница 138: ...136 The XFD PS weigh 87kg Be strictly follow the replacement procedure in the service manual In case the connections are difficult to remove follow Method B ...

Страница 139: ...other end of the leak sensor are connected to the cabinet monitor If the leakage sensor are broken the resistance between A and B will be greater than 50MOhms This will be labeled as SF Sensor Failure on the cabinet monitor If any leakage happens because the coolant resistance are less the resistance between A and B will less than 3MOhms This will be labeled as LK Leakage on the cabinet monitor If...

Страница 140: ...Front Bottom and Water Tray Front sensor locates in front of RF amplifier and XFD Bottom sensor locates on the bottom of the system cabinet Water Tray sensor locates on the left side of tray The three parts of sensor 2 are serially connected and terminated on the water tray sensor Leak sensor 3 locates on the bottom of the water tray A fault on Leak sensor 2 will trip the E Off A fault on Leak sen...

Страница 141: ...ctor in the PDU when The system haven t scanned for one hour The Nigh Mode control signal is from IRF I O board J23 to SCIF J101 then to SCIF J105 then to J10 in cabinet monitor 4 Cabinet monitor will energize the Night Mode contactor in the PDU when The system is running TPS reset or begins to scan 5 Provide Isolated 24V DC power to whole CAN link Pump flow sensor and Tank level sensor are all No...

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Страница 144: ...e five voltage regulators to transform three kinds of input voltage to five kinds of output voltage Voltage Regulator Board monitors all regulated voltages using comparator chips and sends status information Power Good to Mega Switch Only when all five regulator outputs are normal then Power Good signal is Ok which is a DC signal ranged in 2 2 to 3 3V at pin 19 of J2 In the Mega Switch the regulat...

Страница 145: ...d power good LED indicators can be observed through the heat dissipation holes of the Regulator Box Due to no power supply for MNS Input LED DS12 and Output LED DS1 are off all the time and other LED indicators are continuous lit ...

Страница 146: ...tages using comparator chips and sends status information to Mega Switch The output from the monitoring circuit is buffered and sent to Mega Switch as a 3 3V digital signal of wired AND logic Diagnostic information is provided on the front panel via LED s ...

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Страница 148: ...nterface It communicates with the RRX by outputting the 16MHz RF signals and receiving control signal from RRX 6 CPLD It provides the interface of the control signals 7 SRI3 Interface It communicates with SRI by transferring Coil ID and other control and status signals 8 Clock Interface It filters the clock signal and makes some transformation then sends the clock signal to RRX 9 TNS Transient Noi...

Страница 149: ...the system every time Loopback signal is split into eight separate but equal signals and are sent to each receive channel via SPDT Single Pole Double Throw switches in the RF router then to Mixer Module for amplifying and mixing then output to RRX Meanwhile system will set the R1 value from 13 to 1 and send them to RRX via DVMR link Then RRX sends the R1 data to Mixer Module in Mega Switch Eight M...

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Страница 151: ... Switch receives 15V and 15V powers from the Driver Module Lite These supply voltages are used for each coil port Body Preamp Bias Power 10V power which is used for each coil port is generated by linear regulators from 15V Note that 10V is not supplied to the Legacy port only 15V are supplied d Body Preamp Bias and Over Current Detect The Body preamp inputs are biased with 15Vdc supply from the Dr...

Страница 152: ...t Body Select Signal To RF Router Block Loopback Select Signal To RF Router Block The control signals from the RRx Module is decoded and the following signal is generated R1 Control Signals To each Mixer Module RCVR_UNBLANK The CPLD provides the control signals to switch the receive path to loopback circuitry when the UNBLANK signal is Logic Low Blank state 7 SRI3 interface consists of the followi...

Страница 153: ...he external power supply The Mega Switch provides a stacked SubD 37 pin female connector to receive 6V85_A 6V85_D_RRx N6V85_A 5V05_A_RRx 5V05V_D_RRx 3V16_D_RRx and Power Good PG Signals The pin assignment of the power connector is the same to each other to for failsafe The Mega Switch doesn t use all of these supply voltages mentioned above just uses 6V85_A and N6V85_A 6V85_A is regulated to 6V_A ...

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Страница 155: ...and filtering Synchronous transfer of 8 channels of 18 bit two s complement I data and Q data from the FPGA over the DVMR Common Communications link at sample rates of 500kHz 250kHz Communication link to and from Megaswitch for diagnostic and control signals Control of TNS section of Megaswitch module and TNS notching for receiver channels Read of board type needs to indicate an 8ch vs 16ch RRx mo...

Страница 156: ...o indicate when the Mega Switch 3 3V incoming power is good and is not lit when either the Mega Switch power is down or the cable into connector J1 is not connected DS1 is used to prevent a false RRX1 indicator where Port ID is equal to 000 All of these LEDs are powered by the Mega Switch 3 3V power ...

Страница 157: ...l up to 2KW for 1 5T or 4KW for 3 0T Peak Power E6 Reflected power to 50ohm load 2 5KW Peak Power 50W RMS F1 F8 G1 G8 Multicoil T R bias F9 F10 To detect if this coil needs body coil to transmit G9 G10 To detect if this coil needs system preamp to amplify I2 I5 15VDC for aux preamp power I3 I6 10VDC for aux preamp power I4 15VDC for aux power I7 I8 Coil ID I9 I10 Coil present ...

Страница 158: ... to the detachable table And there is no other mechanism to drive fixed table up and down The control box for fixed table is newly designed The longitudinal movement of the cradle is driven by longitudinal motor located in the rear pedestal It is same as HDe The cover of the cradle is reinforced to protect the embedded Express PA coil from damage The cradle with the Express PA coil moves the patie...

Страница 159: ...ocates on the fixed table frame The other three limit switches integrate in the actuator When the table is going down Down1 LS will be touched first then fixed table will stop if Down1 LS is OK But if the Down1 LS doesn t work the table will keep going down Down2 LS will be touched and the table will stop It is same for Up1 LS and Up2 LS In normal situation only Up1 and Down1 will be touched Up2 a...

Страница 160: ...When the up or down foot pedal is pressed down the table will move up or down And when the Up limit Switch or Down limit Switch is activated the table will stop Table control box transfers the table vertical position information to SRI When the table is on the highest position SRI will output Enable signal to PHPS Lite2 to enable the longitudinal movement of the cradle And it receives 8V power fro...

Страница 161: ...159 Please refer to the service method 5364191 2EN Replacement Fix Table TABLE ELECTRICAL ACTUATOR for the detailed procedure ...

Страница 162: ...160 Express coil consists of three coils HNA AA and PA 1 HNA and AA can t be used together because of one port A 2 HNA and PA can use together 3 AA and PA can use together ...

Страница 163: ...apter There are 14 elements in HNA Not all the elements will be used during scanning Different elements will be used in different scan mode HNA itself has four scan modes which are Brain NV C Spine C spine with adapter And CT Spine mode can only be available when combining HNA and PA ...

Страница 164: ... t be used independently and must be used with PA coil which their combination is functionally similar to 8ch Body Array or 4ch Torso Array They have three scan modes BodyArray12 BodyArray_23 and BodyArray_34 which will be shown on the next slide ...

Страница 165: ... PA coil consists of 12 elements In the surface of cradle there are coil marker from 1 to 4 Every one marker contains of 3 elements They have three scan modes SpineArray_12 SpineArray_23 and SpineArray_34 ...

Страница 166: ...164 This table shows all the scan mode which the HNA AA and PA have and which elements will be used in different mode ...

Страница 167: ... position and landmark position would be strictly followed otherwise failure of MCQA Be sure to use the foam pad in the HNA when scanning HNA PA mode and HNA with Adapter PA mode Please refer to specific procedures of Express coil MCQA in the service manual ...

Страница 168: ... position This function is only available for Express coil and not all the scan modes of the Express coil are compatible with this function This table shows all the available modes This two pictures show the procedure to use this function In step 4 after selection of the automatic coil selection the background color of one configuration in the right area will turn yellow which means this mode has ...

Страница 169: ...167 Please refer to the service method 5364191 2EN Replacement Fix Table Express Coil Posterior Array Coil Replacement without removing Fixed Table for the detailed procedure ...

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Страница 173: ...is important during new installations and upgrades to verify that your IP addresses are always up to date both Host IP and MGD IP If any changes have been made to an IP address you must reconfigure the the ICN ...

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Страница 175: ...oftware by clicking Click here to start this tool The tool will launch in a separate window After completion of the tool the user must click Check Status After clicking Submit or Check Status the ICW will check the data files If it finds a passed calibration or a completed checklist then it will allow the user to advance to the next calibrations in the flow If it detects a failure or an incomplete...

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Страница 177: ... with no red squares to the right has no pre dependencies therefore it can be run at any time If there are red squares to the right of any of the tasks calibrations then the tasks calibrations indicated in the vertical column s associated with each red square must be completed successfully before that task calibration becomes available This matrix is the basis for the logic of the ICW ...

Страница 178: ...e have been successfully completed Maintenance Mode becomes available In Maintenance Mode any time you click on a calibration it will alert you to the possibility of pre and post dependencies Choosing Yes acknowledges understanding of these dependencies and pre dependencies will be de bolded Clicking No de selects calibration Clicking More shows the Calibration Dependency Matrix ...

Страница 179: ... you reach the yellow square Any task vertically directly above the yellow square is a pre dependency and any task vertically directly below the yellow square is a post dependency Post dependencies are more important than pre dependencies For troubleshooting purposes if user is about to perform a certain calibration or task it would be beneficial to see what pre dependencies are related to that ca...

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Страница 181: ...179 Before using the software to do the LVShim LVshim localizer scan must be done to assure the phantom is in the center ...

Страница 182: ... correct phantom type position and landmark are all critical to successful operation of the DQA II tool If there is a failure during the DQA II tool the Actions Required window will give details as to the likely reason for the error If specific recommendations are not available in the Actions Required window the FE will be pointed to Service Documentation ...

Страница 183: ... to connect cables from the fixture through the pen panel nor is it necessary to attach power supplies to the Systems cabinet or attenuators to the RF Amplifier In addition once the landmark is established no further user interaction with the Grafidy fixture is required This new 6 channel Grafidy fixture will be available in both 1 5T and 3 0T versions and will be available as a service tool for a...

Страница 184: ... one gradient can be pulsed to get data from all six coils instead of just two as in the previous Grafidy releases For 1 5T as compared to previous Grafidy with the new software using data from all six coils together allows for more accurate B0 component Also after changing calibration factors the UI does not allow the user to exit without collecting data and the number of significant digits displ...

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Страница 188: ...186 The report file is stored in export home signa bin ...

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Страница 191: ...nd Individual Once you ve decided to use MCR III tool determine which level of test your situation requires The default and port specific levels of tests offer increased user friendly automation that is been omitted from the individual tests by design Therefore it is imperative to identify which level of tests you need to perform and then follow the instructions for that specific level 1 Port A De...

Страница 192: ...190 The RF and DC cables for Express PA Coil Cradle mode are shipped with the system ...

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Страница 194: ...Optima MR360 Brivo MR355 GEHC TECH MD33392427 MR5047 Service Training Lab Guide Rev Number J MyWorkshop Book Number 51232 ...

Страница 195: ...K LAB 5 4 DVMR LINK LAB 7 5 ICN DIAGNOSTIC LAB 11 6 SIMPLE OC COMPUTER AND DUST FILTER REPLACEMENT LAB 13 7 COOLANT PUMPOUT LAB 14 8 XFD REPLACEMENT LAB 15 9 CABINET MONITOR LAB 17 10 FIXED TABLE ACTUATOR LAB 19 11 FIXED TABLE INSTALLATION ADJUSTMENT LAB 20 12 EXPRESS COIL LAB 22 13 MCR III TOOL LAB 23 14 MODIFIED CALIBRATION TOOL LAB 24 ...

Страница 196: ... Follow software and power shutdown procedure in Service Methods 5364191 a Shut down applications and turn system power off 2 System Components Geography Using the handout provided a Match the subsystems and component names to the boxes indicating their location Open cabinet doors for interior identification b Remove covers as needed for interior identification 3 For Simple Operator Console a Remo...

Страница 197: ...low power and software restoration procedure in Service Methods 5364191 If subsequent labs are to be performed you may be instructed to leave covers off Please ensure covers are properly and safely stored to avoid trip hazards Review Questions for instructor ______________________________________________________ ______________________________________________________ _______________________________...

Страница 198: ...s subset of documented procedure Steps 1 Phantom Preparation a Using documented procedure in MR355 360 Operator Manual Patient Preparation Set up the phantom for scanning 2 Prescan a Using documented procedure in MR355 360 Operator Manual Prescan Start Auto Prescan and Manual Prescan 3 Scan a Using documented procedure in MR355 360 Operator Manual Scan Start to scan 4 View a Using documented proce...

Страница 199: ...ection 5364191 Troubleshooting Diagnostics System Function Patient Handling CAN Link Diagnostic OR Troubleshooting Diagnostics Hardware Location Misc CAN Link Diagnostic a Perform CAN Link Diagnostic 2 Refer to the following CAN link diagram to perform the test a Remove the terminator from cabinet monitor b Perform step 1 and record the test result _________________________________________________...

Страница 200: ..._______________________________________ m Restore all the cables Questions 1 What is the function of force reset button ________________________________________________________ 2 What conclusion can be made according to step 2 _______________________________________________________ _______________________________________________________ ______________________________________________________ Review...

Страница 201: ...ng Diagnostics System Function RF Transmitter Diagnostics a Perform DTX board Level Diagnostics b Record results ____________________________________ c Place the RF Enable switch in the front panel of exciter in the Disable Down position d Perform DTX board Level Diagnostics e Record results ____________________________________ f Use command mgd_term to open SCP and AGP terminal g Do the TPS Reset...

Страница 202: ... procedure in Direction 5364191 Troubleshooting Diagnostics System Function RF Transmitter Diagnostics a Perform DTX RRX DP Diagnostics b Record results ____________________________________ c Disconnect RUN M1513 from J106 of Mega Switch d Perform DTX RRX DP Diagnostics e Record results ____________________________________ f Restore the cable 4 Observe Error Message Refer to the following diagram ...

Страница 203: ...Restore the good Fiber optic Transceiver e Replace the Fiber optic Transceiver on IRF3 J11 with a broken one and perform IRF3 Wide Coverage Diagnostics f Record results ____________________________________ g Restore the good Fiber optic Transceiver h Replace the Fiber optic Transceiver on IRF3 J13 with a broken one and perform IRF3 Wide Coverage Diagnostics i Record results _______________________...

Страница 204: ..._____________________________ v Restore the good Fiber optic Transceiver Questions 1 What diagnostics are performed during IRF3 Wide Coverage Diagnostic ______________________________________________________ ______________________________________________________ ______________________________________________________ ...

Страница 205: ...er to ICN Reconfiguration procedure Tools Required Standard hand tools Safety Considerations Follow all LOTO procedures as required They are posted in the lab as well as incorporated as subset of documented procedure Steps 1 Understanding Ethernet cables function a Open CShell window and input more etc hosts b Record the IP address of icn1 vre and icn1_bmc c Start a new Exam to scan d Disconnect t...

Страница 206: ... error message ______________________________________________________ q Restore all the disconnected cables Questions 1 What are IP addresses of the NET MGT Port Port2 and Port3 _______________________________________________________ 2 What data are transferred thru NET MGT Port Port2 and Port3 _______________________________________________________ Review Questions for instructor ________________...

Страница 207: ...ntent 1106757 htm Tools Required Standard hand tools Safety Considerations Follow all LOTO procedures They are posted in the lab as well as incorporated in the documented procedures Steps 1 Simple OC Computer Replacement Use documented procedure in Direction 5364191 Replacement Operator Workspace Replacement Computer Replacement a Perform steps 1 12 b DO NOT remove the disk drive 2 Dust Filter Rep...

Страница 208: ...the lab as well as incorporated as subset of documented procedure After draining the drain valves must be closed Check that drain valves are closed Avoid coolant splashing into the electronics Steps 1 Coolant pumpout Use documented procedure in Direction 5364191 Replacement System Cabinet Replacement XFA and XFD PS Replacement XFD PS 3 Procedure 3 Drain the coolant a Perform the draining operation...

Страница 209: ...cedure Discharging the super capacitor by waiting for at least 15 minutes after system power off for XFD replacement or at least 30 minutes for removing power panel assy The weight of XFD PS is 87kg Take care when replacement The left top of XFD PS will be over 40oC in ten minutes after discharging Take care when replacement Steps 1 XFD replacement Use documented procedure in Direction 5364191 Rep...

Страница 210: ...t is the correct order of removing the terminal of power panel __________________________________________________________ 5 What should be checked before power on the system __________________________________________________________ Review Questions for instructor ______________________________________________________ ______________________________________________________ _________________________...

Страница 211: ...k Tools Required SF checker DVM and Standard hand tools Safety Considerations Follow all LOTO procedures They are posted in the lab and incorporated in the documented procedures Steps 1 Cabinet Monitor Functional Check Use documented procedure in Direction 5364191 Troubleshooting Troubleshooting Steering Guide Water Leak Troubleshooting 1 Overview Cabinet Monitor Functional Check a Perform Cabinet...

Страница 212: ...en step 1 a and step1 b How to explain it __________________________________________________________ 2 What kind of switch is the sensor of water flow __________________________________________________________ 3 How the cabinet monitor identifies three status of leak sensor Disconnected normal and leakage detected __________________________________________________________ Review Questions for inst...

Страница 213: ...ols Required Standard non magnetic hand tools Safety Considerations Follow all LOTO procedures They are posted in the lab and incorporated in the documented procedures Steps 1 Table Electrical Actuator Replacement Follow the documented procedure in Direction 5364191 Warning The table must be removed from the magnet room for this procedure Continue to Fixed Table Adjustment Lab once the table has b...

Страница 214: ...hey are posted in the lab and incorporated in the documented procedures Steps 1 Dock Frame Installation Use documented procedure in Direction 5364191 Installation Guided Mechanical Install Flow for Optima MR360 Brivo MR355 Illustration 2 1st day Dock Frame Assy http 3 28 123 26 8000 mr cdrom 5364191 2EN root data Signa_EXCITE content 1097184 htm a Perform Dock Frame Installation Procedure 2 Top He...

Страница 215: ...8 Questions 1 How do you know if the table height is adjusted properly __________________________________________________ 2 What is the adjustment length of the delrin lock __________________________________________________ 3 What is the maximum travel distance for the cradle emergency lock release ramp __________________________________________________ Review Questions for instructor ____________...

Страница 216: ...ocedures Steps 1 Express Coil MCQA Test Use documented procedure in Direction 5364191 Adjust Cals Surface and Head Coils 1 5T Coil Vendor Manuals Table 11 Express Coil SNR Test a Perform procedure 3 1 step 1 3 to setup HNA coil and position phantom b Perform step 4 to run MCQA tool to test mode HNA PA c Perform procedure 3 1 step 1 4 to setup AA coil and position phantom d Perform step 5 to run MC...

Страница 217: ...I Tool Express PA Coil RF Cable Assy for MCR III Tool Express PA Coil DC Cable Assy for MCR III Tool Safety Considerations Strong Magnetic Field Ferrous materials can become dangerous projectiles in the presence of the magnetic field Produced by the Signa Magnet Do not Bring any ferromagnetic tools or equipment into the magnet room Steps 1 MCR III Diagnostic Use documented procedure in Direction 5...

Страница 218: ... Split Head Coil Safety Considerations 1 Follow all LOTO procedures They are posted in the lab and incorporated in the documented procedures 2 Take care when moving LV Shim phantom Steps 1 Use Modified Calibration Tool Use documented procedure in Direction 5364191 Installation Install and Calibration Wizard for Signa Brivo MR355 Optima MR360 4 Procedure 4 4 Calibrations Guided Flow a Perform a sav...

Страница 219: ...ult appropriate current service documentation Failure to follow procedures in current service documentation or misuse of the course information may result in equipment damage personal injury or death The primary sources of the material contained in this course are released Service Sales or Marketing documentation GE Healthcare MyWorkshop Book Number 51232 SV Full Service Component Identification A...

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Страница 223: ...Page 5 System Cabinet 1 2 3 4 5 6 7 8 9 10 11 2 3 4 5 6 7 8 9 10 11 1 ...

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