No. Type Details (Symptom, Possible Cause, Troubleshooting)
841-00 B EEPROM error 2: EEPROM read/write error CTL
Mirrored data of the EEPROM is different from the original data in EEPROM.
• Data in EEPROM was overwritten for some reason.
No. Type Details (Symptom, Possible Cause, Troubleshooting)
842-00 C NAND-Flash Update Verify Error Detected. CTL
SCS write error (verify error) occurred at the Nand-Flash module when
remote ROM or main ROM was updated.
Nand-Flash failed
• Cycle the machine off/on.
• Replace controller board
842-01 B Insufficient Nand-Flash blocks (threshold exceeded) CTL
At startup, or when machine returned from low power mode, the Nand-
Flash status was read and judged that the number of unusable blocks had
exceeded threshold, and then SCS generated the SC code.
Number of unusable blocks exceeded threshold for Nand-Flash
• Replace controller board
842-02 B Number of Nand-Flash block deletions exceeded CTL
At startup, or when the machined returned from low power mode, the
Nand-Flash was read and judged that the number of deleted blocks had
exceeded threshold, and then SCS generated this SC code.
Number of blocks deleted exceeded threshold for Nand-Flash
• Replace controller board
6. Troubleshooting
600