Disassembly and Reassembly
4-2. This chapter presents detailed
Cleaning and Examination
maintenance data to assist the techni-
cian in maintaining the amplifier-
Performance Test and
converter A1 (fig 4-1). The data
provided enables fault isolation to a
removable component or component group.
Repair and Replacement
Troubleshooting information, repair
data, and alignment procedures are
Component Location and Parts List
included for complete maintenance.
Maintenance Diagrams (schematic,
power distribution, test setup,
4-3. The amplifier-converter or Maint Kit
and performance test flowchart.
OA-9163/GRC-193A is used as a maintenance test
bed. Operating power is supplied to the best bed via a
fabricated power cable (fig 3-10A) which con-
nects +28v to the amplifier-converter.
4-5. Table 4-1 lists the test equipment
The amplifier-converter can be turned on
with the switch on the fabricated power
required to test the amplifier-converter;
on/off switch connector (fig 3-10D).
equivalent test equipment may be used.
from the amplifier-converter using a fab-
SPECIAL TOOLS AND MATERIALS.
for component access during test and
troubleshooting. Maintenance procedures
and cables used in the repair and testing
for the amplifier-converter are pre-
of the amplifier-converter.
sented in each chapter as follows:
Equivalent test equipment may be used.
Use only test equipment that is properly calibrated. Failure to do so
may provide erroneous or misleading performance or fault indications.
Power Supply, DC