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FM ALIGNMENT
CHART
SIGNAL GENERATOR
|
CRECEIVER
ADJUSTMENT
DIAL SETTING
REMARKS
Detune T105, T106.
Tune T101, T102, T103
and T104 for maximum
indication.
CONNECTION TO
INPUT SIGNAL
RECEIVER
FREQUENCY
Exactly 10.7 MHz (400 Hz,
30 %, FM modulated)
Tuning gang fully closed. | Connect
VI VM between
(maximum inductance)
| test
point TP101
and
chassis ground.
See NOTE.
Adjust
for
maximum
output
speaker
voice
coil lugs.
Connect
signal
generator
through
a 5 PF capacitor
to converter emitter to test
point TP1 of Q2.
Connect
generator ground
lead to the receiver chassis.
Exactly 87.6 MHz (400 Hz,
30 %, FM modulated)
Tuning gang fully closed.
(maximum
inductance)
Connect
signal
generator
through a dummy including
output impedance of signal
generator
to the external
antenna.
Ground
lead of generator
connected
to the receiver
chassis. (Refer to figure 4)
Same as step 4.
Exactly 106MHz (400 Hz,
106MHz
Same as step 4.
RF trimmer
(Cl)
30 %, FM
modulated)
Oscillator trimmer (C2)
R |
TO
ANTENNA
SOCKET
/Rl= 37.5 (ohm):
Re = 75( ohm) < poers,
(ohm)
/R1l= 50
(ohm)
R= 5O(ohm)< 0. 50
(ohm)
TO
CHASSIS
GROUND
Figure 4 FM Dummy
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