Service Call Conditions
SM 4-17 D017/D018/D019/D020
Trouble-
shooting
A break (LOW) signal
was received from the
finisher.
Finisher serial cable connection loose,
broken
BCU defective
Finisher main board defective
External noise
B Key/card counter device error 1
632
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.
Serial line from the device to the
main machine is unstable,
disconnected, or defective
Key/card counter device error 2
633 B
During communication with the
device, the MCU received a break
(Low) signal.
Serial line from the device to
the main machine is unstable,
disconnected, or defective
Key/card counter device error 3
634 B
The backup battery of the counter RAM backup battery
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