Ricoh MP C3004 Field Service Manual page 1022

6. Troubleshooting
No.
SC823-00
[6101]
[6104]
[6105]
1014
Type Error Name/Error Condition/Major Cause/Solution
B Self-diagnostics error: NIC
[XXXX]: Detailed error code
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)
Replace the controller board.
PHY IC error
The PHY IC on the controller cannot be correctly recognized.
• Defective PHY chip
• Defective ASIC MII I/F
Replace the controller board.
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
Replace the controller board.