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t
)
i
f
t
d.
Duty Switch
- in
normal
position
€.
Frequenry
slritch.-
on frequency
to
be
alicrned
..*,
E.
On/Off
switch
- in
ON
position
3. Install
crystals
a.
Put
crystal in
socket
X201
(XTL
socket
farthest
from speaker),
X201
corresponds
to
"normal',
freq.
b.
Run
band
select
jrrnrper
from
anode
of
cR209
to
tire
correct
range
select pin.
c.
X2OZ
corresponds
to
the
two
farthest
from
speaker.
LL
30-39 isz
LF
39-50
YtEz
HL 145-160
tlEz
Quadrature Aligrrment
1. I{ith
no
signal applied, put
the
on
Pin
10
of
IC201
(A0
Pin)
and,
voltage
is
3.5
volts.
band
select
pins
HE
150-170
l{Hz
UL
450-470
!.tHz
ttE
475-500
r,lHz
DC
Voltneter's
probe
adjust
L2L6
until
the
f
.F.
Alignment
1.
connect
the
FM
signal
Generator
to the
antenna
input
jack.
Accurately
set the
freguency
to the center of
the
channel bei,ng
used.
for aligmment.
tilodulate the
Signal
Generator
with
1,000
tlz,
3K
KHz
deviation.
2.
Connect
the
AC
Voltmeter
to pin
5
of IC20l (foil
side
of
board,)
.
3.
Set
AC
Voltseter to the
100rnv
scale
4. Adjust the signal
Generator
output until the
AC
voluneter
reading
is
mid-range
5'
Ad.just L208
for
maxinn:m AC
voltmeter reading.
Re-ad,just
the signal
Generator's
output to maintain
voltmeter
reading near
mid-range.
Note: ff the
RF
segnents
refuse to tune
up
or will
not
al1ow
fuIl rated sensitivity,
check
the position of
the
band
select pin with
respect
to the
frequency
of
the
crystal
and
the
band
select
jurnper.
with the
frequency
select switch
sw4cl
in the
normal
position crystal
X201
(farthest
frorn speaker) and the
pin
cl.osest
to
speaker
are
"turned on".
Low VEF Segrment
(30-50
ItEz)
1.
Connect
AC
Voltmeter
to Pin 5,
IC20l.
2.
Set
AC
Voitmeter
to the
100
millivolt
scale.
3.
Make
sure
band
select pins are set
up as
per
Note.
4. set the signal
Generator
accurately to the
frequency of
the
channel
being
used
for aliqnment.
Connect the
generatorrs output
to the
antenna
input jack.
Adjust
signar
Generator's output
until
AC
vortmeter reading
is
mi.d-range.
5. Adjust
L20L and L206
for
naxj:num AC
voltmeter
readino.
Re-adjust
signal
Generator's
output to maintain vortneter
ORAWN
DATE
srzE
A
PART
I{JI'8ER
TP-14:254
R€V.
A
APPRovgo
6 +..- C
/
Z,n-**-
9ATE
x/,n2r9
DO NOT
SCALE
DY.'G.
SCALE
sHtseT
2
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