TM 9-1260-206-34&P
Table 3-2. DAC Troubleshooting Procedures - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2.
If bad, replace faulty wiring.
4.
ALL DIC LAMPS ARE OUT/DAC LAMP IS LIT
Step 1.
To prevent damage to electronic components, always reenergize
unit before removing or inserting printed circuit cards.
Remove DAC top and bottom cover plates.
Step 2.
Remove all printed circuit cards. (See table 3-6, steps 1 & 2.)
Energize DAC.
Using a multimeter, perform the following measurements.
the card/assembly being inserted is shorted.
IF NORMAL INDICATION
NORMAL
IS NOT OBTAINED
PIN NO.
INDICATION
ACTION
Replace power supply.
+5V
Initially
A86
Replace card A.
Reinsert
card A
Replace card B.
Reinsert
card B
Replace card C.
Reinsert
card C
Replace card D.
Reinsert
card D
Replace card F.
Reinsert
card F
Replace card G.
Reinsert
card G
3-4