GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 55
5-3-19 Spectrum Doppler Processor Board, SDP (cont’d)
 
Table 5-45    LEDs on the SDP Board
LED # LED COLOR DESCRIPTION NORMAL STATE
Upper Batch of LEDs
LD1
 - Red
DSP1 Status
OFF.
ON if errors/warnings detected.
LD2
 - Green
Board OK
ON
OFF if error detected.
LD3
 - Yellow 0
DSP1 Local SW Running FLASHING
LD4
 - Yellow 1
DSP1 Ready for Data ON when scanning, else OFF
LD5
 - Yellow 2
DSP1 has received data ON in Doppler mode, else OFF
LD6
 - Yellow 3
Data Out on PipeLink 
ON during data transfer to PipeLink 
FIFO
LD7
 - Yellow 4
Audio Path OK 
ON in Doppler Mode and audio 
present.
Lower Batch of LEDs
LD8
 - Red
Board Failure
Normally OFF
ON if errors detected
LD9
 - Green
Board OK
Normally ON
OFF if errors detected
LD10
 - Yellow
DSP2 Local Software Running Flashing
LD11
 - Yellow
Audio Path OK
ON in Doppler Mode and audio 
present.
LD12
 - Red
PipeLink Clock Problem
OFF
ON if SDP clock is out of phase with 
RFT clock.
NOTE: If system is working and LED is 
ON: System OK.