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|  TM 11-5820-401-34-3/0967-LP-432-3060
4-23. SILICON VERSION A5300A SQLJELCH FILTER ALINEMENT. (CONT)
ALINEMENT PROCEDURE
1.
Lift R-442/VRC A3000 tray (1). (See test setup diagram
).
2.
Connect MM-100E attenuated probe A (x1 setting) to TP5008 (2), and probe B to ground.
3.
Adjust R5301 (3) until 150-Hz tone is heard on MM-100E speaker.
4.
Adjust AN/GRM-114A scope VERT control (large knob) and DEV-VERT CAL control (small
knob) to bring trace on center of screen to obtain Iissajous ellipse.
5. Continue adjusting R5301 until all three of the following conditions are met:
a. 150-Hz tone on speaker is clear and steady, with no tone oscillation.
b. MM-100E voltage is at peak ac value (about 2.5 to 6.0 volts).
C . Lissajous ellipse is steady, with no rotation.
4-136
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