T M 9 - 4 9 3 1 - 3 8 1 - 1 4 & P - 2
FRAME 7
Inspect Digital Indicator:
CAUTION
Digital indicator (1) has a glass covered, vacuum sealed
message display (2). Avoid breaking vacuum nipple (3) or
puncturing glass cover (4) of message digital indicator (2).
Avoid damage to circuits by not allowing digital indicator
(1) to hit against hard surfaces.
1.
Look at message display (2) for cracked or broken window (4) or vacuum nipple (3).
If bad, turn in digital indicator (1). If OK, do step 2.
2.
Look at digital indicator (1) for Ioose, damaged, or missing electrical-mechanical
posts (5) or spacer blocks (6). If bad, turn in. lf OK, go to step 3.
3. Look at digital indicator (1) for loose or damaged printed wiring boards (7),
connectors (8), wiring (9), or microcircuits (10). If bad, turn in. lf OK, carefully set
aside for later use.
Follow-on Maintenance:
NOTE: To install digital indicator, refer to task 25.
TASK 2 ENDS HERE
Volume IV
2-40
Para. 2-6, Task 2