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Page Title:
TABLE NO. 3-10. Multimeter Does Not Indicate 10.22 6 0.35 Vdc When STAB 1&2/SINGLE Switch Is Placed To STAB 1&2 And Does Not ... |
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 TM 1-6625-735-14
Is Placed To STAB 1&2 And Does Not Indicate -10.22 6 0.3.5 Vdc When STAB 1&2/SINGLE Switch
Is Placed To SINGLE.
TEST OR INSPECTION
CORRECTIVE ACTION
1. Place SCALING AMPL NO. 1 control fully counterclockwise (DN). Go to 2.
2. Place SCALING AMPL NO. 2 control fully clockwise (UP). Go to 3.
3. Connect multimeter between SCALING AMPL SIM NO. 2 and SIG GND test jacks.
Go to 4.
4. Place SCALING AMPL STAB 1&2/SINGLE control to STAB 1&2 and then to
SINGLE. Multimeter shall indicate 10.22 6 0.35 vdc when SCALING AMPL STAB
1&2/SINGLE control is at STAB 1&2 and shall indicate -10.22 6 0.35 vdc when
SCALING AMPL STAB 1&2/SINGLE control is at SINGLE. Go to 5.
5. If multimeter indication is not correct, replace switch S6.
Is Turned Fully Counterclockwise And Does Not Indicate -7.16 6 0.74 Vdc When CLTV STICK POSN
Control Is Turned Fully Clockwise.
TEST OR INSPECTION
CORRECTIVE ACTION
1. Place CLTV STICK POSN control to SIM STAB 1. Go to 2.
2. Connect multimeter between CLTV STICK POSN SIM NO. 1 and SIG GND test
jacks. Go to 3.
3. Turn CLTV STICK POSN control throughout its range from fully counterclockwise
(DN) to fully clockwise (UP). Multimeter shall indicate 7.16 6 0.74 vdc when CLTV
STICK POSN control is fully counterclockwise and shall indicate -7.166 0.74 vdc
when CLTV STICK POSN control is fully clockwise. Multimeter shall indicate a con-
tinuously adjustable voltage from counterclockwise to clockwise position.
Step 1. If multimeter indication is not correct, go to 4.
Step 2. If multimeter indication changes abruptly from 7.90 to -7.90 vdc, replace
potentiometer R3.
4. Check switch S3 for continuity.
3-15
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