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Page Title:
AUDIO AND SQUELCH PREAMPLIFIER A4300 ALINEMENT. |
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|  TM 11-5820-401-34.3/0967-LP.432.3060
4-19.
SILICON VERSION IF DISCRIMINATOR A4200A ALINEMENT. (CONT)
1.
Lift A4000 tray(1). (See test setup diagram
.)
2.
Connect MM-100E attenuated probe A (test setup diagram
), page 4-123) to TP4007
(2); connect alligator clip to ground.
3.
Adjust L4202 (3) for maximum indication on MM-100E.
4.20.
AUDIO AND SQUELCH PREAMPLIFIER A4300 ALINEMENT.
PURPOSE. This procedure adjusts the gain of the A4300 assembly.
TEST EQUIPMENT AND MATERIALS
Test Set AN/GRM-114A
Power Supply PP-1104(*)/G
Maintenance Kit MK-1978/VRC
Attenuated Probe
TEST SETUP. Connect the equipment as shown in test setup diagram
Remove R-442/VRC bottom cover. (See paragraph 2-7.)
4-125
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