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REV.-A
Table 5-6 SEIPS/SANPSE Power Supply Unit Repair (Continued)
Problem
Symptom
Cause
Checkpoint
Solution
The printer
The voltage
The +24V
Check the +24V line.
does not
on the
±
12V
power supply
operate at all.
line is dead.
circuit is
dead.
Fuse resistor
Measure the resistance values of R31 and
Replace
R31 or R32
R32.
either R31 or
is open.
R32.
Transformer
Measure the resistances of transformer coils
Replace T1.
coils are
7-8,8-11.
open.
5-12
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