Olivetti d-Copia 5200MF, Service Manual

Page: 214 / 502

2KR/2KS
1-4-57
(8)
Paper feed clutch 1/
2, feed clutch 1/2/3,
MP paper feed
clutch, MP feed
clutch, registration
clutch, duplex feed
clutch or developing
clutch does not oper-
ate. 1. Poor contact in the con-
nector terminals.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
2. Broken clutch coil. Check for continuity across the coil. If none, replace the clutch.
3. Defective engine PWB. Run maintenance item U032 and check if following terminals on
the engine PWB goes low. If not, replace the engine PWB.
Paper feed clutch 1: YC10-B1 on the engine PWB
Paper feed clutch 2: YC10-B4 on the engine PWB
Feed clutch 1: YC23-2 on the engine PWB
Feed clutch 2: YC8-A12 on the engine PWB
Feed clutch 3: YC8-A5 on the engine PWB
MP paper feed clutch: YC12-A9 on the engine PWB
MP feed clutch: YC12-A11 on the engine PWB
Registration clutch: YC10-B6 on the engine PWB
Duplex feed clutch: YC4-B2 on the engine PWB
Developing clutch: YC7-1 on the engine PWB
(9)
The feedshift sole-
noid or toner feed
solenoid does not
operate. 1. Poor contact in the con-
nector terminals.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
2. Broken solenoid coil. Check for continuity across the coil. If none, replace the solenoid.
3. Defective engine PWB. Run maintenance item U033 and check if the solenoid operates. If
not, replace the engine PWB.
(10)
The exposure lamp
does not turn on or
off. 1. Poor contact in the con-
nector terminals.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
2. Defective inverter PWB. Run maintenance item U061 and check if the exposure lamp turns
on with the inverter PWB go low. If not, replace the inverter PWB.
3. Defective ISC PWB. Run maintenance item U061 and check if YC3-23 on the ISC
PWB goes high. If not, replace the ISC PWB.
4. Defective ISM PWB. Run maintenance item U061 and check if YC5-4 on the ISM PWB
goes low. If not, replace the ISM PWB.
(11)
Main charging is not
performed. 1. Broken main charger
wire.
Replace the main charger unit (see page 1-5-26).
2. Leaking main charger
housing.
Clean the main charger wire and grid.
3. The connector terminals
of the high voltage PWB
make poor contact.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
4. Defective engine PWB. Check if YC13-4 on the engine PWB goes low when maintenance
item U100 is run. If not, replace the engine PWB.
5. Defective high voltage
PWB.
Check if main charging takes place when CN1-4 on the high volt-
age PWB goes low while maintenance item U100 is run. If not,
replace the high voltage PWB.
(12)
No developing bias is
output. 1. The connector terminals
of the high voltage PWB
make poor contact.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
2. Defective engine PWB. Check if YC13-1 on the engine PWB goes low when maintenance
item U101 is run. If not, replace the engine PWB.
3. Defective high voltage
PWB.
Check if developing bias is output when CN1-1 on the high volt-
age PWB goes low while maintenance item U101 is run. If not,
replace the high voltage PWB.
Problem Causes Check procedures/corrective measures
Y111960-2 Service Manual