Ricoh OR-C1 Field Service Manual page 434

3. Appendix: Service Call Conditions
No. Type
670 D
3
No. Type
671 D
76
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Engine response error
After powering on the machine, a response is not received from the engine within
30 seconds.
• BCU installed incorrectly
• BCU defective
• Controller board defective
1. Install the BCU correctly.
2. Replace the BCU.
3. Replace the controller board.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
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 BCU.
2. Replace the controller board.