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Figure 2-62. Removal of printed circuit board.
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TM-5-6675-250-34 Survey Instrument Azimuth Gyro Lightweight( Leaser Siegler Inc. Models AG-8 and AG-8A) Manual
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Figure 2-64. Removal of MODE and TEST SELECT switch knobs.
TM 5-6675-250-34
Table 2-1. Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TS 006302
Figure 2-63. Removal of printed circuit board.
b. Unfasten ten screws securing the printed circuit board to mounting brackets and loosen the board
to obtain access to electrical connectors.
CAUTION
To avoid damage to the electrical connectors, alternately back-off each of the two attaching screws when removing tbe
connectors.
c. Disconnect two electrical connectors (2A2J5 and 2A2J6) by unfastening two screws at each connector.
d. Use an ohmmeter and check continuity of MODE SELECT switch (2A2S3) in BRAKE ON position between
pins A and A6, B and B6, and C and C6.
If continuity is not present, replace a bad MODE SELECT switch.
(1) Place MODE SELECT switch to GC position (fig. 2-64).
2-53

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