Ricoh G188 Service Manual page 353

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
CTL Self-diagnostic error: ROM
828
D [XXXX]: Detailed error code
Check sum error 1
The boot monitor and OS program stored in the ROM DIMM is
[0101]
checked. If the check sum of the program is incorrect, this SC code
is displayed.
Check sum error 2
All areas of the ROM DIMM are checked. If the check sum of all
[0104]
programs stored in the ROM DIMM is incorrect, this SC code is
displayed.
- - Defective controller
1. Turn the main switch on and off.
- -
2. Replace the controller.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
CTL Self-diagnosis error: optional RAM
829
B [XXXX]: Detailed error code
Verification error (Slot 1)
[0401] The data stored in the optional RAM in Slot 1 does not match the data
when reading.
Composition error (Slot 1)
[0402] The result of checking the composition data of the optional RAM in Slot
1 on the controller is incorrect.
Not specified RAM DIMM installed
- -
Defective RAM DIMM
1. Turn the main switch off and on.
- - 2. Replace the RAM DIMM.
3. Replace the controller board.
SM Appendix
Service Call Conditions
3-57 G188/G189