GE HEALTHCARE
DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL
5 - 28 Section 5-3 - a Front-End Processor (FEP)
5-3-13 Relay Board (RLY) (cont’d)
5-3-13-3 DC Voltages
5-3-13-4 Input Signals
5-3-13-5 Control Signals
5-3-13-6 Output Signals
5-3-13-7 Fuses, Jumpers, Dip-switches and LEDs
None
Table 5-16 DC Output Voltages, Plug P3 & P4
INPUT DESCRIPTION CONNECTED FROM
+ 5 Va
DC output voltage, distributed via Motherboard
(Backplane).
The “a” indicates that this voltage is used for analog circuits
DC Power Supply > Backplane
- 5 Va
DC output voltage, distributed via Motherboard
(Backplane).
The “a” indicates that this voltage is used for analog circuits.
DC Power Supply > Backplane
GND Distributed via Motherboard (Backplane) DC Power Supply > Backplane
Table 5-17 Input Signals
INPUT DESCRIPTION CONNECTION FROM
EL1-128
Received signals (echoes) and Transmitted pulses (1 of 3
probe connectors)
The active probe
Table 5-18 Control Signals
INPUT DESCRIPTION CONNECTION FROM
Front-End Data
Bus
Digital data bus used for control of the boards in the Front-
End
RLY > Backplane > FEC
Probe MUX Control Probe Configuration RLY > Backplane > FEC
Table 5-19 Output Signals
OUTPUT DESCRIPTION CONNECTION TO
XD1 - 128 128 signals to TX-128 and RX-128 XD Bus Boards
CW or PW TX CW or PW Doppler transmitter pulses Stand Alone Doppler probe
CW or PW RX CW or PW Doppler RX signals (echoes) Stand Alone Doppler probe
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