Olivetti d-COLOR P2026, Руководство по обслуживанию, Страница: 74 / 207

Check procedures/
corrective measures
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
LSU cleaning motor and engine PWB
(YC36)
Check if the rollers and gears rotate
smoothly. If not, grease the bushes and
gears. Check for broken gears and replace if
any.
Replace the LSU cleaning motor.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-26).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Main PWB (YC39) and relay PWB (YC3)
Relay PWB (YC2, 4) and engine PWB (YC8,
9)
Replace the main PWB or the engine PWB
and check for correct operation (see page 1-
5-29, 1-5-26).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Drum unit K and Drum relay PWB (YC2)
Drum relay PWB (YC1) and engine PWB
(YC34)
Replace the drum unit K. (see page 1-5-20).
Replace the engine PWB and check for cor-
rect operation (see page 1-5-26).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Drum unit C and Drum relay PWB (YC4)
Drum relay PWB (YC1) and engine PWB
(YC34)
Replace the drum unit C. (see page 1-5-20).
Replace the engine PWB and check for cor-
rect operation (see page 1-5-26).
Code
4600
Contents
LSU cleaning motor error
When the LSU cleaning motor
is driven, the motor over-cur-
rent detection signal is
detected continuously for 50
times (5 s) at 100 ms inter-
vals.
Causes
Defective connec-
tor cable or poor
contact in the con-
nector.
Defective drive
transmission sys-
tem of the LSU
cleaning motor.
Defective LSU
cleaning motor.
Defective engine
PWB.
4700 VIDEO ASIC device error Defective connec-
tor cable or poor
contact in the con-
nector.
Defective main
PWB or engine
PWB.
5301 Broken cleaning lamp K
wire
When the cleaning lamp K is
driven, the lamp over-current
detection signal is detected
continuously for 10 times (1 s)
at 100 ms intervals.
Defective connec-
tor cable or poor
contact in the con-
nector.
Defective cleaning
lamp K.
Defective engine
PWB.
5302 Broken cleaning lamp C
wire
When the cleaning lamp C is
driven, the lamp over-current
detection signal is detected
continuously for 10 times (1 s)
at 100 ms intervals.
Defective connec-
tor cable or poor
contact in the con-
nector.
Defective cleaning
lamp C.
Defective engine
PWB.
1-4-20