Ricoh MP C6502SP Field Service Manual page 1176

5. Troubleshooting
SC No.
SC665-04
SC No.
SC669
SC669-01
SC669-02
SC669-03
SC669-04
SC669-05
1174
Level Error Name/Error Condition/Major Cause/Solution
IOB does not start
The IOB_WAKE signal of the IOB and the PFB is not "WAKE".
(Occurs when either 2 Vodkas in the IOB or 3 Vodkas in the PFB are in
the reset status.
Details:
• Detected when IOB_WAKE signal from the 2 Vodkas on the IOB
(PIB function, FSB function) and 3 Vodkas on the FSB stay in the
WAKE status.
• IOB_WAKE signal is output from 5 Vodkas as explained above and
if at least one of them is "WAKE", IOB_WAKE is not canceled.
• IOB damaged
D
• PFB damaged
• BCU defective
• Harness between BCU and IOB: Ground fault
• Harness between IOB and PFB: Ground fault
• PSU5V not output
• Replace the harness between IOB and PFB.
• Replace the harness between BCU and IOB.
• Replace the IOB.
• Replace the PFB.
• Replace the BCU board.
• Replace the PSU.
Level Error Name/Error Condition/Major Cause/Solution
EEPROM Communication Error
D EEPROM OPEN: ID error
D EEPROM OPEN: Channel error
D EEPROM OPEN: Device error
D EEPROM OPEN: Communication abort error
D EEPROM OPEN: Communication timeout error