Olivetti d-Color MF2613En, Service Manual

Page: 158 / 375

2PV/2PW
1-4-22
6030 Broken fuser thermistor
wire
Input from fuser thermistor is
3 or less (A/D value) continu-
ously for 1 s.
Defective connec-
tor cable or poor
contact in the con-
nector. Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Fuser unit and eject PWB (YC3)
Eject PWB (YC1) and engine PWB (YC19)
Deformed connec-
tor pin. See page 1-4-22.
Defective triac. See page 1-4-22.
Broken fuser
thermistor wire. Replace the fuser unit (see page 1-5-26).
Fuser thermostat
triggered. Reinsert the fuser unit (see page 1-5-26).
Broken fuser
heater wire. Replace the fuser unit (see page 1-5-26).
Defective engine
PWB. Replace the engine PWB and check for cor-
rect operation (see page 1-5-27).
6000/
6020/
6030
Com-
bined
Broken fuser heater wire
Abnormally high fuser
thermistor temperature
Broken fuser thermistor
wire Deformed connec-
tor pin. If the I/F connector pins of the fuser unit and
the main unit are deformed owing to foreign
matters, such as paper dusts, replace the
connectors or the units including the con-
nectors.
Defective triac. Remove the power cord and check that the
resistance between terminals T1 and T2 of
the triac TRA51 is of several Mega-Ohms
and not shorted (see figure 1-4-4). If failed,
replace the power source PWB (see page 1-
5-29).
Figure 1-4-4
Code Contents Causes
Check procedures/
corrective measures
T1
TRA51
Power source PWB
T2
Service Manual
Y116650-5