Ricoh D025 Service Manual page 528

SC Tables
⇒
No. Type
828 D
⇒
No. Type
D
829
D
D023/D025
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Self-diagnostic error: ROM
[0101]
Check sum error 1
The boot monitor and OS program stored in the ROM DIMM is
checked. If the check sum of the program is incorrect, this SC code is
displayed.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Self-diagnostic error: Optional RAM
[0301]
Verification error
Error detected during a write/verify check for the optional RAM
(SDRAM DIMM).
•
Loose connection
•
Defective SDRAM DIMM
•
Defective controller
1. Turn the main switch OFF and ON.
2. Replace the SDRAM DIMM.
3. Replace the controller.
[0302]
Memory structure data error
The memory structure data error for the optional RAM (SDRAM DIMM)
is detected when the self-diagnostic is executed.
3-76
Rev. 10/06/2010
SM Appendix