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ALIGNMENT
Connect an
output
meter
across
the
speaker
voice coi1.
Set
volurne
to
rnaximurn
and tone
to treble.
Atten-
uate signal generator
output
to rnaintain
2,45
volts
(1
watt across
6 ohrn
load)
on output
meter at all
times
to preient receiver overloading. Cover rnust be
removed
to
gain
access
to
sorne
of the adjustrnents'
STEP
GENERATOR
CONNECTION
GENERATOR
FREQUENCY
(400
cycle
mod)
TUNER SET
TO
ADJUST
REMARKS
IF
ALIG
1.
RF
ALIC
?.1
{MENT
Antenna
recept-
acle
thru.lmf
and chassis
NMENT
Antenna
recept-
acle
thru
durnrny
(see
Figure)
262.5Kc
r
61OKc
High
end
stop
High
end
stop
r,
2,3
&
+
5, b
&
/
Adjust
for
rnaximurn.
Adjust for
rnaximurn.
NOTE: Do not perforrn
StePs
3,
4,
5
replaced,
Before proceeding
with
Step
their effect on trimrner
adjustrnent.
rnounting
screw
and
turn bracket
down
and
6
unless
tuner
has been
tarnpered
3,backtuning cores
as
far
as
possible
Remove
dial
scale,
dial
background,
to
gain
access
to core
screws.
with or
colnponents have
been
out
of coil forms to
eliminate
then
loosen
pilot light
bracket
Adjust for
maxirnum,
Adjust for maximum,
Use
alignrnent tool such as
GC
type
9050-L.
Adjust for
rnaximurn.
4.
Antenna
recept-
acle
thru
durnrny
(see
Figure)
il
Repeat Steps
4
and
place.
Final
adjustment,
align
antenna
trirnrner thru
a
53rnrnf series
c
apacitor
t
6l
oKc
l0 20Kc
l6t
o,Kc
High
end stcp
Tuner carriage
9
/ I6,'
f.rorn
high
end
stop
High
end
stop
5,
6
&
7
8,9&10
5,
6
&
7
5 until
no
further increase;
step
5
should be
last step.
Then cement cores
in
16t
0Kc
High
end
stop
Adjust
for rnaxirnurn.
(NOTE:
The 53mrnf
capacitor
approx-
imates
the car
antenna capac-
itv.
)
ANTENNA TRIMMER ADJUSTMENT
IN
CAR
(IF
NECESSARY)
8.
High
end
stop
Adjust for rnaximurn
noise
with radio installed in
car,
antenna fully
extended
and
volume control at
maximum,
if
needed.
signalandbend
pointer until center
of
pointer
coincides
IF
IF
IST
IF
IST
IF
26L5
KC
7.
TO
CALIBRATE
PO]NTER
with the center
of
the
100Kc
-
Tune
radio to
1000Kc
mark
on
dial
scale.
ig
VZ
OU
p?
PI
I
il
il
-11
i-'l
i=l
!eT
'-'llt
tlr
ili
ff"1
>5
d<
ots
osc
TRrM
H
-.fi
1610
Kc
p
u
tra
RF
TRIM 9t
l6to
Kc
-
z
OU
t-5
c<
A'{TTRTM
l'
1610
Kc
U
J
o
o
U
o
U
G
=r)vil_'.,
i=-EEtn
z
z
l!
F
z
=
=
)
o
26L5
KC
2625KC
2625(C
Rf
i
te
<-0
EE
6y
OU
FO
AI.IGN'IENI
PO'NIS
IOCAIION
DET
AIL
PLArED CHA55'5
REMOVAL
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