Canon imagePRESS C800 Series Technical & Service Manual page 126

Diagnose LEDs
LEDs on DDI board
On the DDI control board you can find some LEDs. These LEDs indicate the working of the board.
The LEDs are situated at the bottom side of the print.
Please first check the LEDs, connectors and the cables before replacing the board.
LED
LEDFPGA-
DONE
LEDCPRDYN1) Yellow
LEDPRDYN1)
LEDCONF1)
126 Chapter 10 - Troubleshooting
Colour Function
Red Is ON as long as the FPGA is not booted successfully
Is OFF when CPRDYN is active. Indicating that the controller PC is
ready.
Yellow Is OFF when PRDYN is active. Indicating that the Engine / Test PC is
ready.
Yellow Is ON, Indicating cable length of 3 m - 5.5 m
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