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GENERAL
ALIGNMENT
INSTRUCTIONS
Should it become necessary at any time to check the alignment of this receiver, proceed as follows;
1) Connect an output meter across the speaker voice coil lugs.
2) Set the volume control at maximum.
3) Attenuate the signals from the generator enough to swing the most sensitive range of the output meter.
4) Use a non-metallic alignment tool.
5S) Repeat adjustments to insure good results.
AM
IF ALIGNMENT
CHART
(MW, SW, LW)
SIGNAL GENERATOR
RECEIVER
TEP |
BAND
ADJUSTMENT
:
'is
CONNECTION TO
INPUT SIGNAL
DIAL SETTING
REMARKS
RECEIVER
FREQUENCY
Connect
signal
generator
| Exactly 452 kHz (400 Hz, | Tuning
gang
fully
Adjust for maximum
through
a dummy
to the | 30%, AM
modulated)
open.
output
at
speaker
external antenna.
(minimum
voice coil lugs.
Ground lead to the receiver
inductance)
chassis.
Repeat until no further improvement can be made.
AM
RF ALIGNMENT
CHART
SIGNAL GENERATOR
RECEIVER
ADJUSTMENT
CONNECTION TO
INPUT SIGNAL
30%, AM
modulated)
fully closed.
mum
output on | L17
(maximum
speaker voice coil
(inductance) | lugs.
—
1
MW
Band
:
Coverage
Repeat steps 1 and 2 until no further improvement
can be made.
RF trmmer C101
ale
Connect
signal
generator
through
a dummy
to an
external
antenna.
Ground lead to the receiver
chassis.
Exactly 1650 kHz (400 Hz,
30%, AM
modulated)
Oscilht or
trimmer
C7
Same as step 1.
Tuning gang
fully open.
(minimum
(inductance)
Same as step 1.
Repeat until no further improvement
can be made.
Exactly
145 kHz (400 Hz,
30%, AM
modulated)
Oscilkhtor
coil
(L15)
Same as step 1.
Tuning gang
fully closed.
(maximum
inductance)
Same as step 1.
Band
Coverage
Exactly
310 kHz (400 Hz,
30%, AM
modulated)
(C6)
Tuning gang
fully open.
(minimum
inductance)
Same as step 1.
Repeat steps 6 and 7 until no further improvement
can be made.
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