Technics ST-G560L

ST-G560L
e
Replacement of the Foot. Heat Melted Posts
1. Remove the 4 heat melted posts on the chassis with a pair of / S
nippers or similar tool.
2. To replace the foot (RKA0009) on the chassis, melt the 4 posts
1e fo Foot
with a soldering iron.
Soldering Iron
(Chassis
(RKAO009)
m@
MEASUREMENTS
AND
ADJUSTMENTS
Bi LW/MW/FM
Control positions and equipment used
@
AM
and
FM
signal
generator(AM
and
FM-SG)
@
Choke
coil
(100yH)
@
Stereo
modulator
@
Resistor(100kQ)
@
Distortion
analyser
@
Ceramic
capacitor(200pF)
@
Oscilloscope
@
AC
and
DC
electronic
voltmeter(EVM)
@
Frequency
counter
Note:
For
Z202,
L303
and
L304,
they
are
supplied
as
adjusted
parts.
So,
do
not
turn
the
cores
of
the
parts.
MW-RF
ADJUSTMENT
AM
SIGNAL
GENERATOR
CONDITION
Modulation
1.
Test
equipment
connection
is
shown
in
figure.
Modulation
frequency
2.
Set
the
unit
to
“MW”
mode.
3.
Set
the
radio
frequency
display
and
signal
generator
to
612kHz.
4.Set
the
radio
frequency
display
and
signal
generator
to
1503kHz.
5.Adjust
2201
(MW
ANT
coil)
for
maximum
output.
6.Repeat
steps
3~5.
AC
EVM
Oscilloscope
Note:
Antenna
input
level
must
be
as
low
as
possible
being
free
from
AGC.
ee Capacitor Output
200pF terminal
LW-RF ADJUSTMENT
Modulation
1.Test
equipment
connection
is
shown
in
figure.
Modulation
frequency
2.Set
the
unit
to
“LW”
mode.
3.Set
the
radio
frequency
display
and
signal
generator
to
155kHz.
4.Set
the
radio
frequency
display
and
signal
generator
to
353kHz.
5.Adjust
Z201
(LW
ANT
coil)
for
maximum
output.
6:Repeat
steps
3~5.
Note:
Antenna
input
level
must
be
as
low
as
possible
being
free
from
AGC.