Olivetti d-Copia 300, Service Manual

Page: 195 / 351

2FD/2FF/2FG
1-5-21
(2) Self diagnostic codes
Code Contents
Remarks
Causes Check procedures/corrective measures
C0030
C0070
C0100
C0110
C0150
C0160
C0170
C0210
C0240
Fax control PCB* problem
• Problems with data from fax control
PCB.
Abnormal detection of fax control
PCB incompatibility
• In the initial communication with the
fax control PCB, any normal
communication command is not
transmitted.
Operation unit PCB backup memory
read/write error
• Reading from or writing to the backup
memory cannot be performed.
Operation unit PCB backup memory
data problem
• Data in the specified area of the
backup memory does not match the
specified values.
(This code is not displayed. The service
call counter counts the frequency of
occurrence only as for this code.)
Backup memory read/write error 2
• Reading from or writing to the backup
memory cannot be performed.
Backup memory data problem
• A checksum error in backup data is
detected.
(This code is not displayed. The service
call counter counts the frequency of
occurrence only as for this code.)
Accounting count error
• A checksum error in backup data of
the accounting counter is detected.
MMI communication problem
• There is no reply after 20 retries at
communication.
Printer board* communication prob-
lem
• There is no reply after 20 retries at
communication.
Defective fax
control PCB.
Defective fax
software.
Defective fax
control PCB.
Defective
EEPROM.
Problem with the
backup memory
data.
Defective backup
RAM.
Defective
EEPROM.
Data damage of
EEPROM.
Data damage of
EEPROM.
Defective main
PCB.
Poor contact in
the connector ter-
minals.
Defective main
PCB or printer
board.
Replace the fax control PCB and check for
correct operation.
Install the fax software to Ver. 2.xx or later.
Replace the fax control PCB and check for
correct operation.
Replace EEPROM 3 and 4.
Turn safety switch 1 off and back on and
run maintenance item U020 to set the con-
tents of the backup memory data again.
If the C0110 is displayed after re-setting
the backup memory contents, replace the
backup RAM.
Replace EEPROM 1 and 2.
Contact the Service Administrative
Division.
Contact the Service Administrative
Division.
Replace the main PCB and check for
correct operation.
Check the connection of connector YC43
on the main PCB and the connector on the
printer board. Repair or replace if neces-
sary.
Replace the main PCB or printer board and
check for correct operation.
*: Optional