TM 5-6675-320-14
Table 4-24. DIRECT/GENERAL SUPPORT TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. POWER SUPPLY FAILURE - Cont
Step 4.
Check fuses F1, F2, and F3 on A4.
(a) If fuses are good, proceed to step 5.
(b) Replace fuse.
Step 5.
Check LED’s DS1-6 on A4.
( a ) I f a l l a r e l i t , p r o c e e d t o s t e p 6.
(b) If any LED is not illuminated, replace A4 (paragraph 4-29.7)
Step 6.
Check output of ribbon cables J2 and J4 on 4.
If no voltage is present, replace ribbon cable.
4-243
