GE HEALTHCARE
DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL
5 - 40 Section 5-3 - a Front-End Processor (FEP)
5-3-16 Front-End Controller Board, FEC (cont’d)
5-3-16-5 Output
5-3-16-5-1 Output Signals
5-3-16-6 LEDs Description, Main Digital Signal Processor (DSP)
Table 5-31 Output Signals
OUTPUT DESCRIPTION CONNECTION TO
TXTRIG_L Starts the transmitter sequence TX128 boards
SYNC_L Signal used to synchronize the Beam Formers BF64 boards
TSIG Test Signal RX-128 Board
ATGCVP/ATGCVN Differential signals used to control TGC on the RX Board RX-128 Board
TX Voltage Control
One serial data line and several select lines to the TX
Supply
TX Supply
Table 5-32 FEC-2, Lower Batch of LEDs, Main DSP
LED # LED COLOR DESCRIPTION NORMAL STATE
LD1
- Red
Board Failure Normally OFF
LD2
- Green
Board OK Normally ON
LD3
- Yellow
System in scanning mode
ON when scanning
OFF in Freeze
LD4
- Yellow
Probe Change ON during probe change
LD5
- Yellow
No-Probe OFF if no-probe has been selected
LD6
- Yellow
TX Overrange
OFF.
ON if excessive TX Voltage is output
Blinking, surveillance period
LD7
- Yellow
VME Access ON when communicating with BEP.
LD8
- Yellow
DSP Running
BLINKING (1 Hz)
“heartbeat”
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