Ricoh D0C8, Service Manual

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SC8xx: Overall System
SM 6-89 D0CA/D0C9/D0C8/D0CB
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No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC823-00 B Self-diagnostics Error: NIC
[XXXX]: Detailed error code
[6101] MAC Address Check Sum Error
The result of the MAC address check sum does not match the check sum
stored in ROM.
•
Defective SEEP ROM
•
Defective I2C bus (connection)
1.
Replace the Controller Board (PCB24).
[6104] PHY IC Error
The PHY IC on the controller cannot be correctly recognized.
•
Defective PHY chip
•
Defective ASIC MII I/F
1.
Replace the Controller Board (PCB24).
[6105] PHY IC Loop-back Error
An error occurred during the loop-back test for the PHY IC on the controller.
•
PHY chip
•
Defective MAC of ASIC (SIMAC/COMIC/CELLO)
•
Defective I/F with the PHY board
•
Defective solder on the PHY board
1.
Replace the Controller Board (PCB24).
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC824-00 C
Self-diagnostics Error: NVRAM (resident)
[XXXX]: Detailed error code
[1401] NVRAM Verify Error
NVRAM device is missing or NVRAM device is damaged.
•
The NVRAM device is missing.
•
The NVRAM device is damaged.
•
NVRAM backup battery exhausted
•
NVRAM socket damaged
1.
Replace the NVRAM device.