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
Items to be
Ensure that good 10 AMP, 2 AMP, and SPARE
fuses are installed in proper locations.
Ensure all control knobs are secured properly and
are not broken.
Check 115 vac and 28 vdc power cord for damage.
Check cables and connectors for damage. Ensure
that cables W1, W2, and W3 are stored in
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.