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FM RF (Cover range & Tracking)
Signal Generator .
DC Volt Meter.
Connect to FM Ant through the dummy.
..Connect to VCO test point
'wy and GND
PN
Dummy
DC Volt meter
SSG.
NO. | Frequency
Adjust for
Adjustment
1
87.9MHz
4.5V
L6
2
107.9MHz
24.5V
TC5
3
Repeat steps 1 and 2 several times.
4
90.1MHz
| Maximum sensitivity
L2, L3, L4
5
106.1MHz
| Maximum sensitivity
TC1, TC2, TC3
6
Repeat steps 4 and 5 several times.
FM T.H.D. ADJUSTMENT
.. Connect to FM Ant (Pin 18) through the dummy.
. Connect to the output
Signal Generator .. .
Distortion Meter. ...
NOTE: At this time, the DC voltage between test
point Or and 1 (Ny should be realigned by T201-2 to
keep on 0 voltage,
because
the "S" curve
may
be detuned.
(Using Frequency Counter, adjust it's point until indicating 98.1MHz exactly.)
-16—
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