Set the mode selector switch
to FM position.
Set the signal generator to produce a signal of
30%.
FM modulated.
l
For adjustment in step see
TEST
D I A L
B
A
N
D
REMARKS
GE
[Connect instruments as shown in Figure 5-l
High
Adjust for
1
FM IF
10.7
MHz
end of
dial
best
curve.
RF
instruments as shown in Figure
Low
2
FM
Band
87
MHz
end of
dial
Adjust for
maximum
output.
6
Repeat steps
and 5 until no further improvement
can be made.
When ceramic filters other than the one (red)
the
central frequency of 10.7 MHz are used, note that a marker
MHz) of FM sweep generator, if used, will be deviated
therefore, adjust the generator by putting off the marker.
7
FM SWEEP GENERATOR
OSCILLOSCOPE CURVE
TP2
TP5
FM SIGNAL
GENERATOR
Telescopic
Earphone
ELECTRONIC
VOLTMETER
TP2
To
Rod
To
GND
2:
of
, Color Mark
1. Input
2. GND
3 . o u t p u t
NOTES ON SCHEMATIC DIAGRAM
. The voltages in each part are measured with no signal given,
Unless otherwise specified, resistors are shown in ohm,
by using a digital
with the unit in play mode.
(1000 ohm), and
type.
The following must also be observed:
Radio circuit: Voltages without parentheses are for FM
l
Uniess otherwise specified, capacitors are shown in
mode,
and those with parentheses for
microfarads, Picofarads
A M m o d e
l
(CH),
Temperature compensation
l
Specifications or wiring diagram of this model are subject
to change for improvement without prior notice.
