Ricoh Da-P1 Field Service Manual page 284

6. Troubleshooting
No. Type
FU3 Micro Fuse
Micro Fuse
FU7
282
Description
Protects the operation panel
from overcurrent
Protects the LEDA power
source from overcurrent
Symptom / Possible Cause /
Troubleshooting Procedures
Symptom:
• Although the power is applied to the
main machine, the operation panel
does not work
Possible Cause:
• Fuse blown out due to a short to ground
Troubleshooting Procedures:
• Replace the operation panel
• Replace EGB
Symptom:
• An LEDA-related error occurs.
Possible Cause:
• FFC is not connected properly.
Troubleshooting Procedures:
• Replace EGB
• Replace FFC
• Replace LEDA