Ll.42 Thermal Control Rap - Xerox 8830 Service Manual

LL.42. Thermal Control RAP
NOTE: Refer to BSD 10.1 while using this
RAP.
This RAP is used to locate certain problems in
the thermal control circuitry in the Fuser area.
WARNING
Dangerous Voltage
Initial Actions
Switch off, then switch on the printer. If the
problem still exists, perform the procedure
below.
Procedure
Switch off the printer and disconnect the
Power Cord. Disconnect the orange wire
from the Fuser Triac, A1Q1-G. Reconnect the
Power Cord and switch on the printer. Wait 10
seconds.
After 5 seconds, the Fuser Heat Rod Is off.
Y N
Replace the Fuser Triac, A1Q1, PL 1.2.
Switch off the printer. Disconnect A23P5 from
the Thermistor Pad Assembly J5.
meter to read 100 ohms. Connect the {+)
meter lead to J5-1. Connect the {-) meter lead
to J5-2.
The resistance is greater than 100 ohms.
Y N
Replace the Thermistor Pad Assembly, PL
10.4.
Check the wiring between Fuser Thermistor,
RT1, and the Main PWB, A2.
The wires have continuity.
Y N
I Repair the wires.
Replace the Main PWB, A2, PL 1.1.
Set the
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2-5 LL.42 RAP