TM 5-6675-328-14
Table 2-2. TROUBLESHOOTING-Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
NO ILLUMINATION AT TARGET POST-Cont
Step 9.
Check for 120 V ac input to transformer.
(a) If 120 V ac is present, proceed to step 10.
(b) If 120 V ac is not present, repair or replace wiring from switch to transformer.
Step 10. Check for 6.5 V ac output from transformer.
(a) If 6.5 V ac is present, proceed to step 11.
(b) If 6.5 V ac is not present, replace transformer (paragraph 2-20.2).
Step 11. Check for 0 to 6.5 V ac at rheostat.
(a) If correct voltage is present, repair or replace wiring or connectors.
(b) If correct voltage is not present, replace rheostat (paragraph 2-20.1).
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