Sony ST-88 - AM Alignment: Adjustment Parts Location; Alignment Component Diagram

TABLE 3-3. AAM FREQUENCY COVERAGE AND TRACKING ALIGNMENT
SG Coupling..... Loop antenna
ss
FREQUENCY
COVERAGE
ALIGNMENT
SG
Output
Level
..
400
Hz,
30
%
mod;
as
low
as
possible
Step
SG
Frequency
Dial
indication
Ac
VTVM
Adjust
Indication
Connection
1
550
kHz
550
kHz
NORMAL
OSC
coil
L402
Maximum
OUTPUT
See
Fig. 3-10.
VTVM
2
1,600
kHz
jack
ee)
OSC
trimmer
CT402
eagine
See
Fig. 3-10.
SG
Coupling.....
Loop
antenna
Nie
TRACKING
ALIGNMENT
SG
Output
Level
..
400
Hz,
30
%
mod;
as
low
as
possible
1,600 kHz
600
kHz
NORMAL
Position
of
bar
antenna
Maximum
OUTPUT
L401
VTVM
1,400
kHz
Antenna
trimmer
CT401
See
Fig.
3-10.
jack (J802) reading
Adjustment Parts Location:
Tune to the
SG signal.
fm 1FT101
fm osc coil fm ré coil fm ant coil
L103. on on
CT4 01
fm osc trimmer
CT103
fm rf trimmer fm ant trimmer
CT102 CT101
Y @m osc coil
L402
discriminator transformer
T201
primary side (orewa)
secondary side switching transformer
(green) L301 .
separation adj.
RV501
Fig. 3-10. Adjustment parts location
—~10—
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