Ricoh A-P4, Service Manual

Page: 164 / 381

The bus is being held by another de-
vice, or a CPU-device infinite loop has
occurred. A module that the watchdog
is monitoring has not closed properly
at the conclusion of its task, or the mod-
ule cannot continue processing.
• System program defective; switch off/on,
or change the controller firmware if the
problem cannot be solved
• Controller board defective
• Controller option malfunction
819 C
Fatal kernel error
Due to a control error, a RAM overflow occurred
during system processing. One of the following
messages was displayed on the operation panel.
• System program defective
• Controller board defective
• Optional board defective
• Replace controller firmware
0x696e "init died"
0x766d "vm_pageout: VM is full"
4361 Cache Error
Other
For more details about this SC code error, execute SP5990 to print an SMC report so you can read the
error code. The error code is not displayed on the operation panel.
820 D
Self-Diagnostic Error: CPU • Controller board defective
• Firmware defective
• Update firmware
Note: This SC also logs one of 47 hex
codes (0001 to 4005). However, the re-
covery procedure is the same in each case.
The central processing unit returned an un-
expected error during the self-diagnostic
test.
821 D
Self-diagnostic error 2: ASIC
The Write & Verify check of the ASIC re-
turned an error.
Note: The main ASIC module on the con-
troller board controls the bus of the ROM
device.
• Replace the controller board
Service Call Conditions
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