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Set the band selector switch
at "FM
position.
Quar-
drature
Detector
FM ALIGNMENT
CHART
SIGNAL
GENERATOR
CONNECTION TO
RECEIVER
Connect signal generator
through a .O22MFD capacitor
to antenna socket (SO1).
Connect generator ground
lead to the receiver chassis.
Same as step 1.
Band
Coverage
Connect signal. generator
through a-dummy including
output impedance of signal
generator to the car antenna
socket (SO1).
Ground lead of generator
chassis. (Refer to Figure 9.)
INPUT SIGNAL
FREQUENCY
DIAL SETTING
Exactly 10.7MHz | Lowend of dial.
(400Hz, 30%, FM
(maximum
modulated)
inductance)
Exactly 10.7MHz
epi.
(unmodul{ated)
Soine 3 ste
RECEIVER
REMARKS
Connect VTVM
between test point
TP1 and chassis
ground.
See NOTE A.
ADJUSTMENT
Tune IFT 1
(Front End)
See NOTE A.
Repeat steps 1 until no further improvement can be made.
Exactly 87.2 MHz
{400Hz, 30%, FM
Same as step 1.
modulated)
Adjust for maximum
output at speaker
voice coil.
1) Connect VTVM (10 volt range D.C. Scale between test point TP2 and Pin (3) of IC-1.
2)
Adjust T1 for O volt on VTVM.
[ore
ce
R2
~Y)
Rl
To ANTENNA
SOCKET
Z=75(ohm) res
Z=50 (ohm) <
TO GROUND
Z=OUTPUT
IMPEDANCE
OF SIGNAL
GENERATOR
Figure
9 FM DUMMY
|= 37.5 (ohm)
'R2= 75 (ohm)
Ri= 50 (ohm)
R2=50
(ohm)
Oscillator
trimmer TC2
(Included by
|
|
Front éndy
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