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  TM 11-6130-243-35
the various circuits of the power supply. Re-
b. Use of Chart. When an abnormal symp-
fer to figures 2-1 through 2-4 for parts loca-
tom is observed in the equipment, look for a
tion. Refer to the schematic diagram (fig. 4-
description of the symptom in the Symptom
4) to identify circuit components. Voltage
column and perform the corrective measure in
and resistance measurements are given in
the Corrective measures column.
c. Conditions to Test. All checks outlined
the operational symptoms, one or more of the
in the troubleshooting chart are to be con-
localizing procedures will be necessary. When
ducted with the power supply connected to a
trouble has been localized to a particular cir-
220- or 440-volt power source, with the tap
cuit, use voltage and resistance measurements
board wired for use. The output cables should
to isolate the trouble to a particular part.
be connected to a load.
d. Troubleshooting Chart.
2-2
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