GE Vivid 7 Service Manual page 366

GE H
EALTHCARE
D FC091194, R
IRECTION EVISION
5-3-11-2 Location in the Unit
NOTICE Please 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.
FRONT OF
SCANNER
TX128
BOARD
5-3-11-3 Input DC Voltages
Table 5-9
INPUT
DC voltage, distributed via Motherboard (Backplane).
+6 Va
The "a" indicates that this voltage is used for analog circuits.
DC voltage, distributed via Motherboard (Backplane).
+10 Va
The + 10Va is only used by this board.
-5 Va DC voltage, distributed via Motherboard (Backplane).
-15 V DC voltage, distributed via Motherboard (Backplane).
GND Ground is distributed via Motherboard (Backplane).
HV1 Voltage can be programmed to vary from +/- 2.5 V to +/- 80V
Used to drive the transmitters in 2D Mode and M Mode
Voltage can be programmed to vary from +/- 2,5 V to +/- 40V
HV2
Used to drive the transmitters in Doppler (CW/PW) mode
and in Color Flow Mapping (CFM) mode
5 - 20
11
FEP1
Figure 5-15 TX128 Board: Location in Unit
Input, DC Voltages
DESCRIPTION
TX Voltage 1
TX voltage 2
Section 5-3 - a Front-End Processor (FEP)
FRONT OF
SCANNER
TX128
BOARDS (2X)
FEP2 with two TX boards
CONNECTOR-PIN#
J7-A22,B22,C22,D22,E22
J6-C5,D5,E5
J6-C3,D3,E3
J6-C1,D1,E1
HV1N: J6-A15
HV1P: J6-A24
HV2N: J6-A18
HV2P: J6-A21
V 7 S M
IVID ERVICE ANUAL
CONNECTION FROM
DC Power Supply >
Backplane
DC Power Supply >
Backplane
DC Power Supply >
Backplane
DC Power Supply >
Backplane
DC Power Supply >
Backplane
TX Power Supply >
Backplane
TX Power Supply >
Backplane