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ASSEMBLY INSTRUCTIONS
C34 - 100µF Lytic
(see Figure B)
T6 - AM IF Coil
(Yellow Dot)
R35 - 27kΩ Resistor
(red-violet-orange-gold)
TP5 - Test Point Pin
(see Figure A)
C32 - 10µF Lytic
(see Figure B)
R36 - 3.3kΩ Resistor
(orange-orange-red-gold)
C33 - .02µF (203)
or .022µF (223) Discap
STATIC MEASUREMENTS
AGC ZERO SIGNAL BIAS
With the power turned OFF, connect your VOM to TP5 as shown in Figure 13. Make sure that the AM/FM switch is
in the AM position.
Check that the VOM is adjusted to
read 9 volts DC and turn the power
ON.
The voltmeter should read
approximately 1.5 volts DC. If your
reading varies by more than .5 volts
from this value, turn the power OFF
and check the polarity of D4. Also
check R36 and R35 and check that
transformer T6 is properly installed.
T8 TEST
With the power turned OFF, connect the positive lead of
the VOM to TP3 and the negative lead to ground pin
TP15. Make sure that the VOM is set to read 9 volts DC
and turn the power ON. The voltage on the VOM should
Amps COM
TP15
If you do not have an RF generator, skip to Section 3.
V
V/Ω
Figure 13
be the same as your battery voltage or power supply
voltage. If not, turn the power OFF and check that T8
is properly installed. Turn the power OFF.
-16-
R38 - 100Ω Resistor
(brown-black-brown-gold)
TP3 - Test Point Pin
(see Figure A)
T8 - AM IF Coil
(Black Dot)
D4 - 1N4148 Diode
(see Figure E)
C38 - .01µF Discap (103)
R42 - 2.2kΩ Resistor
(red-red-red-gold)
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