TM 11-6625-2638-30
Section Ill. TROUBLESHOOTING PROCEDURE
2-7. Test Set Troubleshooting
a. If the fault is known, and can be related to a specific control, indicator, or test jack (fig. 2-1) troubleshoot per
b. If the fault is not known, troubleshoot per table 2-3.
c. After the test set has been repaired, perform the complete table 2-3 troubleshooting procedure to verify that
there are no more faults.
Table 2-1. Preliminary Checks
Item
Items to be
Procedure
Inspected
No.
Ensure that good 10 AMP, 2 AMP, and SPARE
Fuses
1
fuses are installed in proper locations.
Ensure all control knobs are secured properly and
Knobs
2
are not broken.
Check 115 vac and 28 vdc power cord for damage.
Power Cords
3
Check cables and connectors for damage. Ensure
4
Cables
that cables W1, W2, and W3 are stored in
lid compartment.
2-8. Tools and Equipment
Refer to the Maintenance Allocation Chart (MAC), Tool and Test Equipment Requirements in TM 11-6625-2638-12.
2-9. Controls and Indicators
Refer to FO-1 for locations of the test set controls and indicators.
2-10. Connector Pin Locations
Refer to FO-2 for locations of J1, J2, J3, J4, and J5 connector pins.
2-11. Schematics and Wire Lists
Refer to Test Set Wire List table 2-4 to locate a component's schematic (FO-3) sheet number.
2-2