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Figure 3-1. Electronic Control Panel.
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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 3-2. Printed Circuit Board.
TM 5-6675-250-34
CAUTION
(5) Install BIAS knob on shaft and secure by
To avoid damaging the electrical con-
t i g h t e n i n g  setscrews.
n e c t o r s , alternately back off each of
SELECT
knob
on
shaft
(6) I n s t a l l T E S T
the
two
securing
screws
during
pointer at SOURCE VOLTAGE position. Secure
disassembly.
k n o b by tightening setscrews.
(7) Install MODE SELECT knob on shaft with
(3) Disconnect two electrical connects (2A1J5
p o i n t e r at GC position. Secure knob by tightening
and 2A2J6) by unfastening two screws from each
setscrews.
connector.
Printed
Circuit
Board
b.
Installation.
a.
Removal.
(1) Position the printed circuit board to per-
(1) Remove control unit panel assembly from
mit connection of the two connectors (2A2J5 and
case.
2A2J6).
(2) U n f a s t e n s c r e w s s e c u r i n g p r i n t e d c i r c u i t
(2) C o n n e c t 2 A 2 J 5 w i t h 2 A 1 P 5 a n d 2 A 2 J 6
b o a r d to mounting brackets and move board side-
w i t h 2A1P6 and secure such with two screws.
w a y s to obtain access electrical connectors.
(3) S e c u r e t h e p r i n t e d c i r c u i t b o a r d t o t h e
m o u n t i n g brackets with ten screws.
3-3
Change 1

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