FM IF/RF ADJUSTMENT
POSITION
GENERATOR
TEST
STAGE
FRE-
QUENCY
1
2
4
5
7
10.7 MHz
counter-
clockwise
IF
before taking
it out of the
bobbin.
2. Adjust for
best
High
frequency
Detection
Adjust for best
curve.
steps and 2
no further improvement can be made,
87.1 MHz Lowest
Band
frequency
coverage
109 MHz Highest
TC2
frequency
Adjust for maximal
output.
88 MHz
Tracking
108 MHz
1 0 8 M H z
Repeat steps 4, and
7 until no further improvement can
be made.
FM mono
400 Hz, 30%. FM modulated
D I A L
P O I N T E R
REMARKS
SETTING
Using a minus
driver, turn
the core of
VCO FREQUENCY ADJUSTMENT
SIGNAL GENERATOR
Hz. 30%. FM modulated
I
(mono signal)
DIAL
FREQUENCY
POINTER
ADJUST-
REMARKS
SETTING
M E N T
FM mono position
FM stereo position
(unmodulated)
98 MHz at 54
98 MHz
Adjust for 38.00
Sweep
(TP2)
Figure 7-l FM IF
(See Figure 7-4)
generator
Figure 7-2 FM
RF
(See Figure 7-4)
(TP4)
Figure 7-3 VCO FREQUENCY
37.5 ohms
To chassis
500hms
ground
50
Output impedance of signal generator
Figure 7-4 FM DUMMY
