Olivetti d-Copia 300 Service Manual page 203

Code
C3200 Exposure lamp problem
• Non-lighting of the exposure lamp is
detected at the beginning of copying.
C3300 Optical system problem
• After AGC, correct input is not ob-
tained at CCD.
(This code is not displayed. The service
call counter counts the frequency of
occurrence only as for this code.)
C4000 Polygon motor synchronization
problem
• When the polygon motor starts, the
motor does not become stable even
after 20 s.
C4010 Polygon motor steady-state problem
• When high-speed rotation from low-
speed rotation is requested, the motor
does not become stable even after 20
s.
C4200 BD steady-state problem
• The VTC detects a BD error for 600
ms after the polygon motor rotation
has been stabilized.
Contents
Causes Check procedures/corrective measures
Poor contact of Check the connection of connector YC34
the connector ter- on the main PCB, and the continuity across
minals. the connector terminals. Repair or replace
if necessary.
Defective main Replace the main PCB and check for cor-
PCB. rect operation.
Defective Replace the exposure lamp or inverter
exposure lamp. PCB and check for correct operation.
Poor contact of Check the connection of connector YC34
the connector ter- on the main PCB, and the continuity across
minals. the connector terminals. Repair or replace
if necessary.
Defective main Replace the main PCB and check for cor-
PCB. rect operation.
Defective Replace the exposure lamp or inverter
exposure lamp. PCB and check for correct operation.
Poor contact in Reinsert the connector. Also check for con-
the polygon motor tinuity within the connector cable. If none,
connector termi- remedy or replace the cable.
nals.
Defective polygon Replace the LSU (see page 1-6-20).
motor.
Defective power Check if 24 V DC is supplied to YC2-1 on
source PCB. the main PCB. If not, replace the power
source PCB.
Defective main Check if 24 V DC is output from YC8-10 on
PCB. the main PCB. If not, replace the main
PCB.
Poor contact in Reinsert the connector. Also check for con-
the polygon motor tinuity within the connector cable. If none,
connector termi- remedy or replace the cable.
nals.
Defective polygon Replace the LSU (see page 1-6-20).
motor.
Defective power Check if 24 V DC is supplied to YC2-1 on
source PCB. the main PCB. If not, replace the power
source PCB.
Defective main Check if 24 V DC is output from YC8-10 on
PCB. the main PCB. If not, replace the main PCB.
Defective laser Replace the LSU (see page 1-6-20).
diode.
Defective polygon Replace the LSU (see page 1-6-20).
motor.
Defective main Replace the main PCB and check for cor-
PCB. rect operation.
2FD/2FF/2FG
Remarks
1-5-29