Tivubleshootina
--
sewkemnua/

5.4

UNIT REPAIR - C137 MAIN BOARD
This
sxtion
desuibes
the problems related to the main
contder
board
(C137
MAIN).
The
table
below provides various symptoms, likely causes, and checkpoints.
‘I&
checkpoints refer to
waveforms, resistance, and other values to be checked to evaluate the operation of each
component.

Table 5-6. Repair of the

C137

MAIN

5-10
Rev.
A