TM 55-4920-429-13
4-25. Panal Installation.
a. Install the panel in case (fig. 5-l).
b. Secure the panel to the case with 23 screws.
c. Install cover and engage seven latches.
4-26. Final Test (CRC).
These tests ensure the performance of all circuits of the test set. They are, however, organized so that the
performance of an individual circuit can be evaluated. The troubleshooting procedures in Section I are
correlated to this test by test paragraph reference as well as by malfunction description. Tests are
performed in the order in which they are presented.
4-27. Test Equipment and Accessories Rewired. The following test equipment and accessories are
required:
a. Test equipment.
TEST EQUIPMENT
SPECIFICATIONS
Variable AC Power Supply
0 to 115 Vac, 0.5%
400 Hz (2 ea)
0 to 6Vac, 0.1 %
Variable DC Power Supply
0 to 20Vdc. Dual outputs & controls
Digital Multimeter (2 ea)
AC: 50mV to 15V, 0.5%
Dc: 10mV to 50V, 0.1%
Decade Resistor
1 ohm to 1.1 Megohm
Accuracy 0.1%
Oscilloscope, Dual Trace
lus to 500ms/div
5mV to 20V/div
Gyro Test Aid
Locally fabricated (fig. 4-3)
b. The following test accessories are required.
ITEM
DESCRIPTION
QTY
Test lead
Banana jack with 18 inches
10 ea.
of No. 16 wire attached
to miniature female pin
4-28. Preliminary Procedures. Prior to beginning the tests, perform the following preliminary
procedures.
a. Set both MASTER POWER switches to OFF. Check that the three circuit breakers are closed.
Always turn off power at the power source before connecting or dis-
connecting test set cables between power source and test set.
Otherwise injury to personnel or damage to equipment can result.
4-9
