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Page Title:
SILICON VERSION AUDIO AND SQUELCH PREAMPLIFIER A4300A ALINEMENT. |
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|  TM 11-5820-401-34-3/0967-LP-432-3060
AUDIO AND SQUELCH PREAMPLIFIER A4300 ALINEMENT. (CONT)
4-20.
Lift R-442 A4000 tray (1). (See test setup diagram
1.
Remove A4300 cover (2).
2.
Connect alternated probe A to TP4007 (3). Connect alligator clip B to ground.
3.
Adjust R4304 (4) for 0.8-volt reading on MM-100E.
4,
SILICON VERSION AUDIO AND SQUELCH PREAMPLIFIER A4300A ALINEMENT.
4-21.
PURPOSE. This procedure adjusts the gain of the A4300A assembly.
TEST EQUIPMENT AND MATERIALS
Power Supply PP-1104(')IG
Test Set AN/GRM-114A
Attenuated Probe
Maintenance Kit MK-1978/VRC
TEST SETUP. Connect the equipment as shown in test setup diagram
. Remove R-442/VRC
bottom cover. (See paragraph 2-7.)
4-128
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