Comnet MLS II MLSH041, Руководство по обслуживанию

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LBI-38425A ALIGNMENT AND TROUBLESHOOTING PROCEDURES
16
5.1.7 Audio Output Level Adjustment Procedure
STEP
METERING
POINT
TUNING
CONTROL
METER
READING PROCEDURE
1 J701-1 RV601 See
Procedure
Set the signal generator to the
receiver frequency with ±3 kHz
deviation and 1 kHz modulation.
Set the RF signal level to 1000
microvolts. Move P551 from
J551-1, 2 to J551-2, 3 on the
Transmitter/Receiver Board.
Connect RF signal generator to J1.
Terminate J701-1, 6 with a 4 ohm,
6-watt resistor, connect the audio
level meter and the distortion
analyzer input across the resistor.
Set the volume to the maximum
point. Press DOWN button two
times. Adjust RV601 for 4-watt
output (4 Vrms, using the
distortion analyzer as voltmeter).
Return P551 to J551-1, 2.