Alignment Procedures - Sherwood RVD-6090R Service Manual

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ALIGNMENT PROCEDURES
|
TUNER
1. Equipment Required
.* Stereo Modulator
Note : Disconnect external FM antenna prior to alignment.
2. Non RDS Version Alignment
2-1. Alignment and Test Point
ie 0090002008 e
at oe
>
Te
: ten oad
ONT
2-2. AM Alignment
> RF signal frequency : 400 Hz
- Switch : Press the BAND button to AM
Step | Subject
Frequency
Connection
Point
Frequenc
Setting.
:
Generator
1
|Tuning
520 kHz
520 kHz
DC Volt meter
T3
)
DC 1+0.2V
Voltage
522 kHz
522 kHz
to J14
AM OSC(R
ie
oscilloscope to tape'
monitor output L/R
the appliance.
T5
AMIFT-
MW ANT(W)
audio output
AC voltmeter.and
oscilloscope to tape
monitor output L/R
Symmetrical
curve on AM
IF signal generator

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