TM 11-6660-200-14
ORGANIZATIONAL TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Dial lamps and wind direction indicator inoperative, windspeed indicator functioning
properly.
Step 1.
Check for 105 - 125 vac at receptacle.
Restore power.
Step 2.
Check for 105 - 125 vac at terminals 1 and 9 on TB201 or at J401.
(See FO-1.)
Repair, tighten, or replace wires.
Step 3.
Check TB201 for broken terminal jumper straps.
Refer to higher category of maintenance.
Step 4.
Check white wire 4-6 and purple wire 4-12 from ac power source or plug
J401 to TB201 for continuity. (See FO-1.)
Tighten, repair, or replace wires.
Step 5.
Check black wire 4-11 and purple wire 4-12 from fuse F201 to TB201 for
continuity. (See FO-1.)
Tighten, repair, or replace wires.
2. Dial lamps inoperative, wind direction indicator functioning properly.
Step 1.
Check transformer output from red wire terminal to green wire terminal
for 6.3 vac.
Refer to higher category of maintenance.
Step 2.
Check red wire 4-9 from transformer to light switch for continuity.
Tighten, repair, or replace wire.
Step 3.
Turn light switch clockwise and check output (white wire) for erratic
or no readings.
Refer to higher category of maintenance.
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