GE Vivid 7 Service Manual page 386

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