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Page Title:
Chapter 6. DEPOT INSPECTION STANDARDS |
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  DEPOT INSPECTION STANDARDS
Standards
The tests outlined in this chapter are de-
signed to measure the performance capability
of a repaired equipment. Equipment that is to
be returned to stock should meet the stand-
ards given in these tests.
6-2. Applicable References
a. Repair Standards. Applicable procedures
of the Anmy depots performing this test, and
its general standards for repaired electronic
Before setting the PP-3514/U power switch
equipment, form a part of the requirements
to ON, perform the following procedures.
for testing this equipment.
a. Power Cord Ground Check. Plug the PP-
b. Technical Publications. The following tech-
3514/U into the hi-pot test set. Check continu-
nical publications are applicable to this equip-
ity of the ground cord by attaching a ground
ment:
lead from the hi-pot test set to the chassis of
Equipment and subject
Publication
the PP-3514/U. The hi-pot CHASSIS GROUND
Operator and Organization
lamp must light.
Maintenance Manual:
b. Primary Circuit Check. Connect the ground
Power Supply PP-3514/U
clip of the hi-pot test set to the PP-3514/U
chassis ground. Set the hi-pot test set Poten-
c. Modification Work Orders. Perform all
tial to 1,500 AC. Press the hi-pot pushbutton
modification work orders (MWO) applicable to
switch for 5 seconds. The leakage current (dis-
this equipment before making the test speci-
regarding any dc charging surge must not
fied. DA Pam 310-4 lists all available MWO'S.
exceed 0.5 milliampere for 5 seconds.
c. Mechanical Zero Adjust. Rotate the ad-
justing screw on the panel meter clockwise un-
The following items are required for depot
til the pointer moves upscale and then start
testing:
downscale toward 0. Continue the clockwise ro-
tation until the pointer is exactly on 0. If the
pointer passes 0, continue clockwise until it is
again approaching 0 from the upscale side.
d. Insulation Resistance Check. Measure the
resistance between ground and the positive
terminal of the PP-3514/U. The resistance must
be greater than 500 megohms.
6-5. Maximum Voltage Adjustment Test
Connect the voltmeter across the output ter-
minals of the PP-3514/U. Turn the PP-3514/U
VOLTAGE ADJUST control fully clockwise
Set the SHORT CIRCUIT CURRENT MA
switch to 225 MA and the METER RANGE
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