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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)
5-21 .
1.
Turn AN/URM-103 DEVIATION control clockwise until DEVIATION KHZ meter reads 8 kHz.
2.
Set ME-30(*)/U to 1-volt scale.
3.
Lift A4000 tray (1). (See test setup diagram
.)
4.
Remove A4300 cover (2).
5.
Connect ME-30(*)/U positive lead to TP4007 (3), and negative lead to ground.
6.
Adjust R4304(4) for 0.8-vac reading on ME-30(*)/U.
5-22.
SILICON VERSION AUDIO AND SQUELCH PREAMPLIFIER A4300A ALINEMENT.
PURPOSE. This procedure adjusts the gain of the A4300A assembly.
TEST EQUIPMENT AND MATERIALS
Signal Generator AN/URM-103
Matching Unit CN-901/U
Frequency Counter AN/USM-207
T-Connector UG-274/U
Power Supply PP-1104(*)/G
Loudspeaker LS-454/U
Test Cable No. 1
Voltmeter ME-30(*)/U
TEST SETUP. Connect the equipment as shown in test setup diagram
, page 5-110. Remove
R-442/VRC bottom cover. (See paragraph 2-7.)
5-109
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