Olivetti d-Copia 1600, Service Manual

Page: 111 / 242

2HA/2HB
1-4-15
1-4-2 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 Backup memory read/write problem
(main PWB)
Read and write data does not match.
Defective main
PWB. Replace the main PWB and check for cor-
rect operation.
C0110 Backup memory data problem (main
PWB)
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 C0110 is displayed after re-setting the
backup memory contents, replace the main
PWB.
C0150 Backup memory read/write problem
(engine PWB)
Read and write data does not match.
Defective engine
PWB. Replace the engine PWB and check for cor-
rect operation.
C0160 Backup memory data problem (engine
PWB)
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 C0160 is displayed after re-setting the
backup memory contents, replace the
engine PWB.
C0170 Accounting count problem
When the power is turned on, the total
count and the scan count are abnormal
both on the main PWB and the engine
PWB.
Defective main
PWB or engine
PWB. Replace the main PWB or engine PWB and
check for correct operation.
C0180 Machine number mismatch
When the power is turned on, the
machine number does not match
between the main PWB and the engine
PWB.
Data damage of
EEPROM. Contact the Service Administrative Division.
C0210 Communication problem between the
main PWB and engine board PWB
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 PWB and YC1 on the engine PWB,
and the continuity across the connector ter-
minals. Repair or replace if necessary.
Defective main
PWB or engine
PWB. Replace the main PWB or engine PWB and
check for correct operation.
C0240 Optional printer board PWB commu-
nication problem
The printer board PWB does not
respond 120 s after the power is turned
on.
Poor contact in the
connector termi-
nals. Check the connection of connector. Repair
or replace if necessary.
Defective main
PWB or printer
board PWB. Replace the main PWB or printer board
PWB and check for correct operation.