Ricoh U-C1 B051 - Page 165

SERVICE CALL 26 July 2002
4-14
No.
Definition
Symptom Possible Cause
Startup without video input end error (B) 810 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the engine
within the specified time.
• Defective controller board
Watchdog error 818 B
While the system program is running,
no other programs can run (due to a
bus hold or endless loop).
• Defective controller board
Kernel abnormal end error 819 B
A HDD error or a software error has
occurred, terminating the SCS
process, gwinit process, and finally
the kernel program.
A system process has exhausted the
RAM.
• HDD error
• Software application error
• RAM shortage
Self-Diagnostic Error: CPU 820 B
An unexpected exception or
interruption has occurred.
• Defective controller board
• Software defective
Self-Diagnostic Error: ASIC 821 B
The ASIC returned an error during the
self-diagnostic test, because the
ASIC and CPU timer interrupts are
compared and determined to be out
of range.
• Defective controller board
Self-Diagnostic Error: HDD 822 B
The hard disk drive returned an error
during the self-diagnostic test.
• HDD defective
• HDD connector defective
• Defective controller board
Self-diagnostic Error: NIB 823 B
The network interface board returned
an error during the self-diagnostic
test.
• Network interface board defective
• Defective controller board
Self-diagnostic Error: NVRAM 824 B
The resident non-volatile RAM
returned an error during the self-
diagnostic test.
• NVRAM damaged or abnormal
• Backup battery has discharged
• NVRAM socket damaged
Self-diagnostic Error: RTC/Optional NVRAM 826 B
The RTC (real time clock) or optional
NVRAM returned an error during the
self-diagnostic test.
• RTC defective
• NVRAM defective
Self-diagnostic Error: RAM 827 B
The resident RAM returned a verify
error during the self-diagnostic test.
• Memory malfunction
Self-diagnostic Error: ROM 828 B
The resident read-only memory
returned an error during the self-
diagnostic test.
• Defective controller board
• Firmware defective
Self-diagnostic Error: Optional RAM 829 B
The optional RAM returned an error
during the self-diagnostic test.
• RAM DIMM defective
• Defective controller board