TM 5-6675-316-14
Table 2-6. DIRECT/GENERAL SUPPORT TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. NO POWER - Cont
Step 3.
Check output voltage of circuit breaker in power panel.
(a) If present, repair wiring between circuit breaker and
transformer.
6.
VARIOUS VOLTAGES FROM POWER SUPPLY INCORRECT. ALL OTHER VOLTAGES ARE
CORRECT .
Step 1.
Check for output on pins 6, 7, and 8 of transformer T1.
(a) If present, proceed to step 2.
(b)
If not present, replace transformer (paragraph 2-16.2).
Step 2.
Check 18 V dc output.
(a) If present, proceed to step 3.
(b) If not present, replace CR1 (paragraph 2-20.6).
Step 3.
Check wires from secondary of transformer to rectifier for
continuity.
(a) If correct, proceed to step 4.
(b) If continuity does not exist, repair wiring.
Step 4.
Check ground lead from
CR1 to J11O for continuity.
Step 5.
Check for 26 V dc at output of CR4.
(a) If present, proceed to step 6.
(b) If not present, replace CR4.
2-192
