GE Vivid 7 Service Manual
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![Page 364
GE HEALTHCARE
DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL
5 - 18 Section 5-3 - a Front-End Processor (FEP)
5-3-10-8 Test points on the TX128 board
NOTE: The Voltages on these test points are approxi mately one tenth (1/10) of the TX Voltages used
by the transmitter circuits. (The exact [calcu lated] value is 10/101). The measured values
depends on selected scanning mode and the Acoustic Power adjustment.
Figure 5-13 TX128 Board: Test points
Table 5-8 Test points on the TX128-5...](http://img.usermanuals.tech/thumb/29/102408/w64_vivid-7-service-manual-1511275381_d-363.png "Page 364
GE HEALTHCARE
DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL
5 - 18 Section 5-3 - a Front-End Processor (FEP)
5-3-10-8 Test points on the TX128 board
NOTE: The Voltages on these test points are approxi mately one tenth (1/10) of the TX Voltages used
by the transmitter circuits. (The exact [calcu lated] value is 10/101). The measured values
depends on selected scanning mode and the Acoustic Power adjustment.
Figure 5-13 TX128 Board: Test points
Table 5-8 Test points on the TX128-5...")
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL Chapter 5 - Components and Functions (Theory) 5 - 15 5-3-10-2 Location in the Unit 5-3-10-3 Input DC Voltages NOTICEPlease be careful about the positions when replacing the TX card and the RX card. The position of the two cards are interchanged between FEP1 and FEP2. Figure 5-11 TX128-5 Board: Location in Unit Table 5-4 Input, DC Voltages INPUTDESCRIPTIONCONNECTOR-PIN#CONNECTION FROM +6 Va DC voltage, distributed via Motherboard (Backplane). The “a” indicates that this vo ltage is used for analog circuits. J7-A22,B22,C22,D22,E22 DC Power Supply > Backplane +15 Va DC voltage, distributed via Motherboard (Backplane). J6-C20,D20,E20 J7-A18,A19,A20 DC Power Supply > Backplane -5 Va DC voltage, distributed via Motherboard (Backplane). J6-C3,D3,E3 DC Power Supply > Backplane -15 VDC voltage, distributed via Motherboard (Backplane). J6-C1,D1,E1DC Power Supply > Backplane GNDGround is distributed via Motherboard (Backplane).DC Power Supply > Backplane HV1 TX Voltage 1 Voltage can be programmed to vary from +/- 2.5 V to +/- 95V Used to drive the transmitters in 2D Mode and M ModeHV1N: J6-A15HV1P: J6-A24TX Power Supply > Backplane HV2 TX voltage 2 Voltage can be programmed to vary from +/- 2,5 V to +/- 95V Used to drive the transmitters in Doppler (CW/PW) mode and in Color Flow Mapping (CFM) mode HV2N: J6-A18 HV2P: J6-A21 TX Power Supply > Backplane FEP2 with two TX boards FRONT OF SCANNER TX128 BOARDS (2X)
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL 5 - 16 Section 5-3 - a Front-End Processor (FEP) 5-3-10-4 Control Signals 5-3-10-5 Outputs 5-3-10-6 Fuses, Jumpers and Dip-switches None Table 5-5 Input, Control Signals INPUTDESCRIPTIONCONNECTOR-PIN#CONNECTION FROM FE_D0-15 Front-End Data bus, Digital TTL J1 RFI > Backplane FE_PA0-9 Front-End Page Address bus, Digital TTL J1 RFI > Backplane FE_SA0-5 Front-End Device Select Address bus, Digital TTL J1 RFI > Backplane TX_TRIG_LTransmit trigger, Digital TTLJ1-D4RFI > Backplane Table 5-6 Output TX pulses OUTPUTDESCRIPTIONCONNECTED TO XD1 - 128 128 transmitter channels via the connectors to the XD Bus Board TX128 > XD Bus Board > Relay Board
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL Chapter 5 - Components and Functions (Theory) 5 - 17 5-3-10-7 LEDs on the TX128 board Figure 5-12 TX128 Board: LEDs Table 5-7 LEDs on the TX128 Board LED #LED COLORDESCRIPTIONNORMAL STATE LD1 - Red Board Failure Normally OFF LD2 - Green Board OK Normally ON LD3 - Yellow Front-End Bus Protocol Error Normally OFF LD4 - YellowScanNormally OFF LD5 - YellowSpa reNormally OFF LD5LD4LD3 LD2 LD1
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL 5 - 18 Section 5-3 - a Front-End Processor (FEP) 5-3-10-8 Test points on the TX128 board NOTE: The Voltages on these test points are approxi mately one tenth (1/10) of the TX Voltages used by the transmitter circuits. (The exact [calcu lated] value is 10/101). The measured values depends on selected scanning mode and the Acoustic Power adjustment. Figure 5-13 TX128 Board: Test points Table 5-8 Test points on the TX128-5 Board TESTPOINT #DESCRIPTIONTYPICAL VALUE TP11 HV1+ /10 Between +0.25 VDC and +9.5 VDC TP12 GROUND 0 VDC TP13 HV1- /10 Between -0.25 VDC and -9.5 VDC TP14HV2- /10Between -0.25 VDC and -9.5 VDC TP15HV2+ /10Between +0.25 VDC and +9.5 VDC TP12 TP14 TP15 TP11 TP13
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL Chapter 5 - Components and Functions (Theory) 5 - 19 5-3-11 Transmitter Board, TX12 8 (version used before BT’05) 5-3-11-1 General Description The Transmitter board (TX128) contains 128 individually controlled transmit channels and provides transmit pulses via the XDBUS board to the Relay boa rd and then to the transducer array (the probes). Frequency-, delay- and pulswidth parameters for the TX128 board are received on the FE_BUS from the Front End Controller (FEC) on units with FEP1, and from the Radio Frequency Interface (RFI) on units with FEP2. The parameters are decoded and stored in the cache. A pulse, TX_TRIG_L, trigs the Tran smit Pulse Generators. The transmit pulses are then amplified to the correct level in the 128 TX transmitters. High Voltage 1 and High Voltage 2 from the TX Power supplies the TX Transmitters with the needed voltages to generate the correct power. The VDRIVER voltage is used by the TX Dr ivers (drivers for the TX transmitters). Two TX128 boards are used on units with the 3D option. Figure 5-14 Block Diagram for the TX128 board 8 TRANSMIT (128 CH.) TX 128 TRANSMITTERS CACHE FRONT END INTERFACE PULSE GEN. FROM TX POWER HV1&2 TX_TRIG_L FROM FEC/RFI FE_BUS XD1-128 TO RLY VIA XDBUS HV1P HV2P HV2N HV1N VDRIVER (+10V) FROM DC POWER FROM FEC/RFI
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL 5 - 20 Section 5-3 - a Front-End Processor (FEP) 5-3-11-2 Location in the Unit 5-3-11-3 Input DC Voltages NOTICEPlease be careful about the positions when replacing the TX card and the RX card. The position of the two cards are interchanged between FEP1 and FEP2. Figure 5-15 TX128 Board: Location in Unit Table 5-9 Input, DC Voltages INPUTDESCRIPTIONCONNECTOR-PIN#CONNECTION FROM +6 Va DC voltage, distributed via Motherboard (Backplane). The “a” indicates that this vo ltage is used for analog circuits. J7-A22,B22,C22,D22,E22 DC Power Supply > Backplane +10 Va DC voltage, distributed via Motherboard (Backplane). The + 10Va is only used by this board. J6-C5,D5,E5 DC Power Supply > Backplane -5 Va DC voltage, distributed via Motherboard (Backplane). J6-C3,D3,E3 DC Power Supply > Backplane -15 VDC voltage, distributed via Motherboard (Backplane). J6-C1,D1,E1DC Power Supply > Backplane GNDGround is distributed via Motherboard (Backplane).DC Power Supply > Backplane HV1 TX Voltage 1 Voltage can be programmed to vary from +/- 2.5 V to +/- 80V Used to drive the transmitters in 2D Mode and M ModeHV1N: J6-A15HV1P: J6-A24TX Power Supply > Backplane HV2 TX voltage 2 Voltage can be programmed to vary from +/- 2,5 V to +/- 40V Used to drive the transmitters in Doppler (CW/PW) mode and in Color Flow Mapping (CFM) mode HV2N: J6-A18 HV2P: J6-A21 TX Power Supply > Backplane TX128 BOARD FRONT OF SCANNER FEP1 FEP2 with two TX boards FRONT OF SCANNER TX128 BOARDS (2X)
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL Chapter 5 - Components and Functions (Theory) 5 - 21 5-3-11-4 Control Signals 5-3-11-5 Outputs 5-3-11-6 Fuses, Jumpers and Dip-switches None Table 5-10 Input, Control Signals INPUTDESCRIPTIONCONNECTOR-PIN#CONNECTION FROM FE_D0-15 Front-End Data bus, Digital TTL J1 Front-End Controller/RFI > Backplane FE_PA0-9 Front-End Page Address bus, Digital TTL J1 Front-End Controller/RFI > Backplane FE_SA0-5 Front-End Device Select Address bus, Digital TTL J1 Front-End Controller/RFI > Backplane TX_TRIG_LTransmit trigger, Digital TTLJ1-D4Front-End Controller/RFI > Backplane Table 5-11 Output TX pulses OUTPUTDESCRIPTIONCONNECTED TO XD1 - 128 128 transmitter channels via the connectors to the XD Bus Board TX128 > XD Bus Board > Relay Board
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL 5 - 22 Section 5-3 - a Front-End Processor (FEP) 5-3-11-7 LEDs on the TX128 board Figure 5-16 TX128 Board: LEDs Table 5-12 LEDs on the TX128 Board LED #LED COLORDESCRIPTIONNORMAL STATE LD1 - Red Board Failure Normally OFF LD2 - Green Board OK Normally ON LD3 - Yellow Front-End Bus Protocol Error Normally OFF LD4 - YellowScanNormally OFF LD5 - YellowSpa reNormally OFF LD5LD4LD3 LD2 LD1
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL Chapter 5 - Components and Functions (Theory) 5 - 23 5-3-11-8 Test points on the TX128 board NOTE: If the test points below have not been mounted, and you want to verify the TX voltages, you must use the TXP test, available via the Di agnostics Test Screen. Please refer to 7-8-3 System Test on page 7-66 . NOTE: The Voltages on these test points are approxi mately one tenth (1/10) of the TX Voltages used by the transmitter circuits. (The exact [calcu lated] value is 10/101). The measured values depends on selected scanning mode and the Acoustic Power adjustment. Figure 5-17 TX128 Board: Test points Table 5-13 Test points on the TX128 Board TESTPOINT #DESCRIPTIONTYPICAL VALUE TP11 HV1+ /10 Between +0.25 VDC and +8.0 VDC TP12 GROUND 0 VDC TP13 HV1- /10 Between -0.25 VDC and -8.0 VDC TP14HV2- /10Between -0.25 VDC and -4.0 VDC TP15HV2+ /10Between +0.25 VDC and +4.0 VDC TP12 TP14 TP15 TP11 TP13
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL 5 - 24 Section 5-3 - a Front-End Processor (FEP) 5-3-12 Transducer Bus Boards, XD BUS 5-3-12-1 General Description The two XD BUS Boards plug into the rear edge connectors on the Relay Board, the TX128 Board(s) and on the RX-128 Board. FEP2 ONLY: The XD Bus boards used on units with two TX boards, with 4D (RT3D), are not backward compatible and cannot be used on units with one TX card (without 4D (RT3D)). And the XD Bus board used on units with one TX board cannot be used on units with two TX boards. FEP2 ONLY: The connectors for the Relay Board connection, are color coded to match the colors on the connectors on the Relay Board, to reduce th e risk of mixing the two types of XD Bus boards. The XD signals to and from the probes (via the Relay Board) are routed via this board. 5-3-12-2 Location in the Unit NOTICETwo different versions of the XD Bus boards are us ed due to the different positions for TX board and RX board on FEP1 and FEP2. The two types can NOT be interchanged. Figure 5-18 XD BUS Boards : Location in Unit with FEP1. XD BUS BoardFront of Scanner XD BUS Board