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Toshiba RT-S652 - TOSHIBA RT-S652 Alignment Procedures; AM Band Receiver Alignment

Toshiba RT-S652
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RT—S652
3.
ALIGNMENT
INSTRUCTIONS
fe
L193
Re
Ant,
Coil
h
awe!
i
.
TP2
TPI
FM
IN
LW
Ant.
SW
Ant.
colo
co09
@Xo)
ae
‘
eTP6
Free
Run
re
.
Ose.
ue
R203
.
TP4
SW
Ose.
(e)
Free
Run
Sw
“le
AM
IF
L109
Zz)
AM
IF
FM
IF
LIII
euo
DET.
Output
‘Zz
TP3°
}
Figure
4.
TEST
EQUIPMENT
.
Signal
generator
with
a
frequency
range
of
at
least
from
140
kHz
to
23
MHz
AM.
.
Oscilloscope
with
a
side
range
amplifier
of
approximately
100
kHz.
.
Test
loop
—
a
coil
of
any
size
wire,
one
turn
or
more.
(LW
&
MW)
.
A
30
ohm
dummy
antenna.
(SW)
VTVM
a
hwWN
=
AM
ALIGNMENT
.
Turn
on
the
AM
signal
generator
and
the
VTVM
allowing
a
fifteen-minute
warm-up
period.
.
Using
the
test
loop
across
the
output
of
the
signal
generator,
inductively
connect
the
signal
generator
to
the
radio.
.
Connect
the
VTVM
across
the
voice
coil
or
a
3.2
ohm
dummy
load.
PWN
=
.
Set
signal
generator
frequency
as
listed
in
ALIGNMENT
CHART
and
maintain
a
sufficient
output
level
to
provide
an
indication
on
VTVM.
a
Set
volume
contro!
at
mid-position.
6.
Proceed
as
outlined
in
the
IF-LW,
MW
and
SW
ALIGNMENT
CHART.
AM
460kHz
ONE-TURN
COIL
Figure
5.