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ALIGNMENT
FM ALIGNMENT PROCEDURE
1. AFe-OFF
2. Turn tuning gang fully, center carrier wave.
3. Set nointer at reference mark.
FEED
ALIGN GENERA TOR SIGNAL
OUTPUT
INDICA TOR
ADJUST
ADJUST
FOR
i.
IF
10.7 MC
Vs Pin 1
6AU6
oscilloscope
4th 1FT (T 4)
Best 1FT
Transformer
:!400 KC
at CD
Primary &
Wave form
secondary
10.7 MC
V7 Pin 1
6BA6
oscilloscope
3rd 1FT (T 3)
Best 1FT
:!400 KC
at CD
Primary &
Wave form
secondary
10.7 MC
V4 Pin 1
6BA6
oscilloscope
2nd 1FT (T 2)
Best 1FT
:!400 KC
at CD
primary &
Wave form
Secondary
10.7 MC
Couple Sweep
oscilloscope
1st 1FT (Ti)
Best 1FT
:!400 KC
Signal by a
at CD
Primary &
Wave form
round tube
Secondary
V3 6AQ8
2.
Discrimi-
10.7 MC
Couple Sweep
oscilloscope
Sth 1FT (T 5)
S Curve
nator
:!400 KC
Signal by a
at ~
Discriminator
round tube
Transformer
V3 6AQ8
3.
ose.
90 Me
Antenna
oscilloscope &
90 MC
OSc.
coil
Maximum
400 cis 100%
Terminals
V.T, V.M. at
La
Modulation
oscillo load
4.
OSc.
106 Me
Antenna
oscilloscope &
106 MC
ose.
Trimmer
Maximum
400 cis 100%
Terminals
V.T, V.M. at
TC3
Modulation
oscillo load
5.
Reiterate
3, 4
6.
RF Amp.
90 MC
Antenna
oscilloscope &
90 MC
Rr
Amp. coil
Maximum
400 cis 100%
Terminals
V.T, V.M. at
L5
Modulation
oscillo load
7.
Antenna
90 Me
Antenna
oscilloscope &
90 Me
Antenna
coil
Maximum
circuit
400 cis 100%
Terminals
V.T, V.M. at
Li
Modulation
oscillo load
8.
RF Amp.
106 MC
Antenna
oscilloscope &
106 MC
RF. Amp
Maximum
400 cis 100%
Terminals
V.T, V.M. at
Trimmer
Modulation
oscillo load
TC2
9.
Antenna
106 MC
Antenna
oscilloscope &
106 MC
Antenna
Maximum
circuit
400 cis 100%
Terminals
V.T, V.M. at
circuit
Madulation
oscillo load
Trimmer Tei
10.
Reiterate
6, 7, 8,
9
-19-
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