Ricoh MP C2504 Field Service Manual page 935

6. Troubleshooting
No.
SC824-00
[1401]
No.
SC833-00
[0F30]
[50B1]
[50B2]
926
Type Error Name/Error Condition/Major Cause/Solution
C Self-diagnostics error: NVRAM (resident)
[XXXX]: Detailed error code
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
Replace the NVRAM device.
Type Error Name/Error Condition/Major Cause/Solution
D Self-diagnostic error: Engine I/F ASIC
[XXXX]: Detailed error code
Engine I/F ASIC detection error
ASIC (Mandolin) for engine control could not be detected.
ASIC (Mandolin) error
Replace the Engine I/F board (mother board).
Video device: clock generator detection error
Could not initialize or read the bus connection.
• Defective connection bus
• Defective SSCG
Replace the Engine I/F board (mother board).
Video device: clock generator verify error
Value of the SSCG register is incorrect.
• Defective connection bus
• Defective SSCG
Replace the Engine I/F board (mother board).