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SCOPE MODULE A2 ALIGNMENT (Cont)
Up
TM-11-5805-387-34-2 Modem Radion Teletypewriter MD-522A/RC (NSN
Next
CHAPTER 3. Index
TM 11-5805-387-34-2
PROCEDURE
INDICATION
NO
8. Use the ME-301U to measure the voltage
9 mv rms
between the wiper of the test potentiometer
connected to transmitter module A3 and the
terminal of the test potentiometer connected
to the GRD test point. Adjust the test poten-
tiometer.
9. Adjust SQUELCH ADJ potentiometer
Pattern disappears
A2A1 R25.
10. Readjust test potentiometer.
11 mv rms (pin A of J1),
Adjust
Pattern reappears
SQUELCH
ADJ. Repeat
steps 8, 9, 10
with 9 to 11
mv rms at pin
A of J1.
11. Set ON/OFF switch OFF. Turn off power to
all test equipment. Replace metal cover over
component board A2A1.
2-41

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