Ricoh B205 Service Manual page 190

SERVICE CALL CONDITIONS
Code No.
819 B Kernel abnormal end error
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.
820 B Self-Diagnostic Error: CPU
An unexpected exception or interruption
has occurred.
821 D Self-Diagnostic Error: ASIC
The ASIC returned an error during the
self-diagnostic test because the ASIC
and CPU timer interrupts were
compared and determined to be out of
range.
822 D Self-Diagnostic Error: HDD
The hard disk drive returned an error
during the self-diagnostic test.
823 D Self-diagnostic Error: NIC
The network interface board returned an
error during the self-diagnostic test.
824 D Self-diagnostic Error: Resident NVRAM
The resident non-volatile RAM returned
an error during the self-diagnostic test.
826 D Self-diagnostic Error: NVRAM/Optional
NVRAM
The NVRAM or optional NVRAM
returned an error during the self-
diagnostic test.
827 D Self-diagnostic Error: RAM
The resident RAM returned a verify error
during the self-diagnostic test.
828 D Self-diagnostic Error: ROM
The resident read-only memory returned
an error during the self-diagnostic test.
829 D Self-diagnostic Error: Optional RAM
The optional RAM returned an error
during the self-diagnostic test.
838 D Self-diagnostic Error: Clock Generator
A verify error occurred when setting data
was read from the clock generator via
the I2C bus.
B205/B209/D007/D008
Symptom
4-12
Possible Cause
• HDD error
• Software application error
• RAM shortage
• MBU jumper set incorrectly. For
more, see "Fax Option Type B766"
manual "1. Installation".
• Defective controller board
• Software defective
• MBUjumper set incorrectly. For
more, see "Fax Option Type B766"
manual "1. Installation".
• Controller board defective
• HDD defective
• HDD connector defective
• Controller board defective
• Controller board defective
• Replace the resident NVRAM on the
controller board
• Replace the controller board
• Replace the NVRAM on the
controller board
• Update the controller firmware again
• Replace the 256 MB memory
• Controller board defective
• Update the controller firmware
• Replace the optional memory.
• Controller board defective
• Replace the controller board
SM