Ricoh MPC 2800 AT-C2 Mode D'emploi page 446

3. Appendix: Service Call Conditions
No. Type
CTL
670
D
3
CTL
671
D
No. Type
CTL
672
D
No. Type
681 D
78
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Engine start up error
The ready signal from the engine board is not detected.
• Defective BICU.
Replace the BICU.
Engine board mismatch error
Engine board and controller mismatch detected.
• Wrong engine board installed.
• Wrong controller board installed.
• Check the type of engine board and controller board.
1. Replace the BICU.
2. Replace the controller board.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Controller-to-operation panel communication error at startup
After powering on the machine, the communication circuit between the controller
and the operation panel is not opened, or communication with controller is
interrupted after a normal startup.
• Controller stall
• Controller board installed incorrectly
• Controller board defective
• Operation panel connector loose or defective
1. Check the harness connection.
2. Replace the controller board.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
RFID: Communication error
• Communication error occurs when the RFID starts to communicate with the RFID
receptor.