Ricoh B064 Service Manual page 264

SERVICE CALL CONDITIONS
SC No.
632 B Key/card counter device error 1
After 1 data frame is sent to the
device, an ACK signal is not
received within 100 ms, and is not
received after 3 retries.
633 B Key/card counter device error 2
During communication with the
device, the BCU received a break
(Low) signal.
634 B Key/card counter device error 3
After installation of the device, a
message alerts user to a backup
RAM error.
635 B Key/card counter device error 4
After installation of the device a
message alerts user to a battery
voltage abnormal error.
640 D BCU # Controller data transfer error 1
Data is sent from the BCU to the
controller, but the transmission
causes a checksum error.
641 D BCU # Controller data transfer error 2
Data is sent from the BCU to the
controller, but the transmission
causes a frame error.
670 B Engine startup error
• Engine does not respond within
30 s after power on.
• Engine down detected suddenly
during power on and warmup.
672 B Controller startup error
• After power on the line between
the controller and the operation
panel does not open for normal
operation.
• After normal startup,
communication with the
controller ceases.
690 C GAVD Block 12 bus error
The register for this block is set for
an error.
GAVD FCI Block I2 bus error
691 C
The register for this block is set for
an error.
692 C CDIC GAVD Block I2 bus error
The register for this block is set for
an error.
B064/B065
Symptom
4-24
Possible Cause
• The serial line from the device to the
copier is unstable, disconnected, or
defective.
• The serial line from the device to the
copier is unstable, disconnected, or
defective.
• Device control board defective
• Device control board backup battery
defective
• Device control board defective
• Device control board backup battery
defective
• The error is logged but the machine can
continue to operate.
• The error is logged but the machine can
continue to operate.
• BCU installation incorrect
• BCU defective
• Sudden communication reset occurred
between the BCU and the controller.
• Controller stalled
• Controller installed incorrectly
• Controller board defective
• Operation panel harness disconnected or
defective
• IPU defective
• IPU defective
• IPU defective
SM