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ALIGNMENT PROCEDURES
TUNER
1. Equipment Required
« AM Standard Signal Generator (AM SSG)
+ Audio Generator
* Oscilloscope
¢ Distortion Meter
« AC Voltmeter
« DC Voltmeter
- FM Standard Signal Generator (FM SSG)
« Frequency Counter
« Stereo Modulator
Note : Disconnect external FM antenna prior to alignment.
2. Alignment
2-1, Alignment and Test Point
2-2. AM Alignment
- Output of signal generator should not be greater than necessary to obtain an optimum output reading.
- Signal generator modulation : 30 %
- RF signal frequency : 400 Hz
- Switch : Press the BAND button to AM
Signal
Set
Equipment
Adjustment
Step | Subject
Generator
Frequency
Gapiadion
Point
Adjust for
Frequenc
Setting
:
=e
(522kHz)
oe
to J22 (TP1)
AM OSC(R
600kHz
600kHz
AC voltmeter and
(1404kHz)
(1404kHz)
of L or R channel
* Feed signal should be fed to loop antenna through the test loop antenna 60 cm distant from
the appliance.
* Repeat the step 1) and 2) until no further improvement occurs.
16
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