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Panasonic RF-544 - Alignment Instructions; Measurements and Adjustments

Panasonic RF-544
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_RF-544
|
MB
MEASUREMENTS
AND
ADJUSTMENTS
@
ALIGNMENT
INSTRUCTIONS
READ
CAREFULLY
BEFORE
ATTEMPTING
ALIGNMENT
1.
Set
volume
control
to
maximum.
3.
Set
power
source
voltage
to
6V
DC.
2.
Set
band
switch
to
AM
or
FM.
4.
Output
of
signal
generator
should
be
no
higher
than
necessary
to
obtain
an
output
reading.
i
AN-IF
ALIGNMENT
SIGNAL
GENERATOR
or
INDICATOR
SWEEP
GENERATOR
RADIO
DIAL
(ELECTRONIC
ADJUSTMENT
SETTING
VOLTMETER
or
—_|
(Shown
in
Fig.3)
REMARKS
CONNECTIONS
FREQUENCY
OSCILLOSCOPE)
Headphones
Jack
Fashion
a
loop
of
several
459kHz
Point
of
non-
(16
~
32Q)
turns
of
wire
and
radiate
30%
Mod.
interference.(on/
|
/Fabicate
the
plug
as
showny
|
T2(AM
IFT)
Adjust
for
maximum
signal
into
loop
of
receiver.
at
400Hz
about
600kHz)
(se
cael
haa
°)
output.
the
measuring
instrument.
Mi
AM-RF
ALIGNMENT
Fashion
a
joop
of
several
output.
signal
into
loop
of
receiver.
|
514+3kHz(EG)
|
fully
closed.
CT1-3
(AM
OSC
|
Adjust
for
maximum
Trimmer
output.
Adjust
for
maximum
(*1]
L8
(AM
ANT]
output.
Adjust
L3
by
moving
coil
bobbin
along
ferrite
core.
“
CT1-4
(AM
ANT
;
Adjust
for
maximum
Trimmer)
|
output.
1639+5kHz(EG)
|
fully
open.
[*1]
Fix
antenna
coil
with
wax
after
completing
alignment.
Mi
FM-IF
ALIGNMENT
INDICATOR
SWEEP
GENERATOR
RADIO
DIAL
(ELECTRONIC
ADJUSTMENT
SETTING
VOLTMETER
or
(Shown
in
Fig.
3)
CONNECTIONS
FREQUENCY
OSCILLOSCOPE)
Connect
to
test
point
Point
of
non-
cone
lt
amp
of
through
ceramic
capacitor.
10.7MHz
interference.(on/
ipa
saa
T1
(FM
IFT)
ere
side
to
test
point
(Sweep)
about
90MHz)
REMARKS
Waveform
is
shown
Negative
side
to
test
in
Fig.
2
point
BiGEH.
Mi
FM-RF
ALIGNMENT
Headphones
Jack
|
_
|
(16
~
320)
ae
86.2MHz(E/EB)
Variable
capacitor
|
sFabicate
the
plug
as
shown,
|L5
(FM
OSC
Coil)
[*2]
Adjust
for
Connect
to
test
point
87.35+0.05MHz(EG)
|
fully
closed.
e
Fig.1
and
then
connect
maximum
output.
through
FM
dummy
antenna.
the
lead
wires
of
the
plug
to
the
measuring
instrument.
ry
tive
side
to
test
point
oMHZ(EEB)
|
Variable
capacitor
108.2540,05MH2(EG)'
fully
open.
106
MHz
Tune
to
signal.
{*2]
Three
output
response
will
be
present;
proper
tuning
is
the
center
frequency.
¢
ALIGNMENT
POINT
¢
Please
refer
to
Circuit
Board
and
Wiring
Connection
Diagram
for
test
point
locations.
=
to
=>
Measuring
a7
=
Instrument
Ay
=
R=
16-320
Fig.1
Fig2

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