TM5-1260-206-34
Table 3-2.
DAC Troubleshooting Procedures
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
POWER INDICATOR NOT LIT
1.
Step 1.
Check that A.C. POWER S1 switch/indicator is lit
If lit, do step 2.
If not lit, do step 4.
Step 2.
Check that fuse F1 is good.
If good, do step 3.
If bad, replace fuse.
Step 3.
Check for continuity between J4 and Power indicator.
(See table 3-11, step 1.)
If bad, replace faulty connector, fuseholder, or
lampholder. (See table 3-3.)
Step 4.
Check for continuity in power distribution assembly
between P5 and P4.
If bad, replace faulty connector, line filter, ac spike
suppressor or switch. (See table 3-4.)
If good, replace faulty W104 cable.
Step 5.
Check that malfunction is corrected.
If not, refer faulty DAC to depot maintenance personnel.
2.
COOLING FAN NOT OPERATING
Step 1.
Check for 115 volts ac at fan.
If voltage is not present, do step 2.
If voltage is present, replace fan. (See table 3-7.)
Step 2.
Check for continuity between fan and J4.
(See table 3-11,
step 1.)
If bad, replace faulty wiring.
3.
ELAPSED TIME Ml METER NOT ADVANCING
Step 1.
Check for 115 volts ac at ELAPSED TIME Ml meter.
If voltage is not present, do step 2.
If voltage is present, replace meter.
(See table 3-13.)
3-3
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