TM 5-1260-206-34
Table 6-2.
Digital Display Troubleshooting Procedures
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
READ-OUT NOT LIT
Step 1.
Check for continuity between plug P1, pin 20 and plug P5-r.
(See table 6-7.)
If good replace faulty printed circuit board.
(See table 6-5.)
If bad replace faulty cable.
(See table 6-6.)
Step 2.
Check that malfunction is corrected.
If not, refer faulty Digital Display to depot
maintenance personnel.
2.
SIGN OR NUMBER DOES NOT LIGHT
Check for continuity between plug P1 or P2 and plug P5.
Step 1.
(See table 6-7.)
If good, do step 2.
(See table 6-6.)
If bad, replace faulty cable.
Exchange unlit sign or number with known good module.
Step 2.
(See table 6-4.) Check that sign or number lights.
If sign or number lights, replace faulty module.
(See table 6-4.)
If sign or number does not light, replace printed
c i r c u i t board. (See table 6-5.)
Check that malfunction is corrected.
Step 3.
If not, refer Digital Display to depot maintenance
personnel.
6-2
Previous Page
