SERVICE MANUAL Diagnostics
23JUL01
SM5766-1
Page
80 of 96
Power, Illumination, and Cooling Malfunctions
LAMP RECEPTACLE ------ 82 V ac, approximately
85-86 V ac without a
LAMP MODULE
installed
DROPPING RESISTOR Move to the LO LAMP
position.
3.0 Ω, 10.6 V ac drop
across
Malfunction Solution
The MOTOR does not operate. 1. Check the continuity across the
POWER FUSE, THERMAL
FUSE ASSEMBLY, and MOTOR
FUSE.
2. Check VARISTOR V101 on the
MAIN BOARD for damage.
VARISTOR V101 is damaged if
the voltage is not in the correct
position, for example, if the
voltage is set at 130 V when it
is necessary to operate at 240
V.
3. Check that the primary voltage
on the MAIN MOTOR is correct.
4. Check that the voltage on
POWER SWITCH is correct.
The FAN does not operate, MOTOR
operates.
1. Check that the FAN BELT is not
broken.
2. Check and remove obstructions
in the FAN area.
Part Procedure Voltage
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