Copystar CS-1620, Service Manual

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2C9-6.0
1-5-15
1-5-2 Self-diagnosis
(1) Self-diagnostic function
This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled. "C" and a number
between 0100 and 7810 altenates, indicating the nature of the problem. After removing the problem, the self-diagnostic
function can be reset by opening and closing the front cover to turn safety switch off and on or power switch turns off and
on.
(2) Self diagnostic codes
Code Contents
Remarks
Causes Check procedures/corrective measures
C0100
(A0100*)
Backup memory read/write problem
(main PCB)
Read and write data does not match.
Defective main
PCB. Replace the main PCB and check for correct
operation.
C0110
(A0110*)
Backup memory data problem (main
PCB)
Data in the specified area of the backup
memory does not match the specified
values.
Problem with the
backup memory
data. Turn safety switch off and back on and run
maintenance item U020 to set the contents
of the backup memory data again.
Defective backup
RAM. If the C011 is displayed after re-setting the
backup memory contents, replace the main
PCB.
C0150
(A0150*)
Backup memory read/write problem
(engine PCB)
Read and write data does not match.
Defective engine
PCB. Replace the engine PCB and check for cor-
rect operation.
C016
(A016*)
Backup memory data problem (engine
PCB)
Data in the specified area of the backup
memory does not match the specified
values.
Problem with the
backup memory
data. Turn safety switch off and back on and run
maintenance item U020 to set the contents
of the backup memory data again.
Defective backup
RAM. If the C016 is displayed after re-setting the
backup memory contents, replace the
engine PCB.
C0170 Accounting count problem
When the power is turned on, the total
count and the scan count are abnormal
both on the main PCB and the engine
PCB.
Defective main
PCB or engine
PCB. Replace the main PCB or engine PCB and
check for correct operation.
C0180 Machine number mismatch
When the power is turned on, the
machine number does not match
between the main PCB and the engine
PCB.
Correct EEPROM
is not installed. Install the correct EEPROM. If it does not
solve the problem, contact the Service
Administrative Division.
Data damage of
EEPROM. Contact the Service Administrative Division.
C0210
(A0210*)
Communication problem between the
main PCB and engine board PCB
When the power is turned on, the
machine does not detect the low level of
SBSY and the high level of SDIR for 10
seconds.
Poor contact in the
connector termi-
nals. Check the connection of connectors YC6 on
the main PCB and YC1 on the engine PCB,
and the continuity across the connector ter-
minals. Repair or replace if necessary.
Defective main
PCB or engine
PCB. Replace the main PCB or engine PCB and
check for correct operation.
C0410
(A0410*)
Optional DP communication problem
Communication fails five times succes-
sively.
DP installed incor-
rectly. Check the installation state of the DP and
adjust it if it is not properly installed.
Defective main
PCB or DP driver
PCB. Replace the main PCB or DP driver PCB
and check for correct operation.
“A” is displayed on the operation panel.