SERVICE MANUAL - O. Rensch OHG

2DC
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 7990 altenates, indicating the nature of the problem.
After removing the problem, the self-diagnostic function can be reset by turning interolck switch off and back on.
(2) Self diagnostic codes
Code
Contents
Causes
Remarks
Check procedures/corrective measures
C0100
Backup memory read/write problem
(main board (KP-5060))
• Read and write data does not match.
Defective backup
RAM or main
board (KP-5060).
Replace the main board (KP-5060) and
check for correct operation.
C0110
(A0110*)
Backup memory data problem (main
board (KP-5060))
• Data in the specified area of the
backup memory does not match the
specified values.
Problem with the
backup memory
data.
Defective backup
RAM.
Turn interlock switch off and back on and
run maintenance item U020 to set the contents
of the backup memory data again.
If the C0110 is displayed after re-setting
the backup memory contents, replace the
backup RAM or main board (KP-5060).
C0150
Backup memory read/write problem
(engine board (KP-5061))
• Read and write data does not match.
Defective backup
RAM or engine
board (KP-5061).
Replace the engine board (KP-5061) and
check for correct operation.
C0160
(A0160*)
Backup memory data problem (engine
board (KP-5061))
• Data in the specified area of the
backup memory does not match the
specified values.
Problem with the
backup memory
data.
Defective backup
RAM.
Turn interlock switch off and back on and
run maintenance item U020 to set the contents
of the backup memory data again.
If the C0160 is displayed after re-setting
the backup memory contents, replace the
backup RAM or engine board (KP-5061).
C0170
Accounting count problem
• When the power is turned on, the total
count and the scan count are abnormal
both on the main board (KP-
5060) and the engine board
(KP-5061).
Defective main
board (KP-5060)
or engine board
(KP-5061).
Replace the main board (KP-5060) or engine
board (KP-5061) and check for correct
operation.
C0180
Machine number mismatch
• When the power is turned on, the machine
number does not match between
the main board (KP-5060) and
the engine board (KP-5061).
Defective main
board (KP-5060)
or engine board
(KP-5061).
Replace the main board (KP-5060) or engine
board (KP-5061) and check for correct
operation.
C0210
(A0210*)
Communication problem between
the main board (KP-5060) and engine
board (KP-5061)
• When the power is turned on, the machine
does not detect the low level of
SBSY and the high level of SDIR for
three seconds.
Poor contact in
the connector terminals.
Defective main
board (KP-5060)
or engine board
(KP-5061).
Check the connection of connectors YC3
on the main board (KP-5060) and YC3 on
the engine board (KP-5061), and the continuity
across the connector terminals. Repair
or replace if necessary.
Replace the main board (KP-5060) or engine
board (KP-5061) and check for correct
operation.
“A” is displayed on the market.
1-5-8