Sony WM-FS473 User Manual

– 8 –
TUNER SECTION
AM Section
BAND : AM
FM Section
BAND : FM
* Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
Frequency Coverage Adjustment
Setting :
no mark : C OM
< > : AEP, E model onl y
AM IF ALIGNMENT
Adjust for a maximum reading on level meter.
T1 450kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust part Frequency display
Reading on digital
voltmeter.
T2
530kHz
1.25 – 1.35V
< 531kHz>
Confirmation 1,710kHz less than 10V
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 620kHz < 621kHz>
CT1 1,400kHz< 1,395kHz>
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust part Frequency display
Reading on digital
voltmeter.
L3 87.5MHz 3.7 – 3.9V
Confirmation 108MHz less than 10V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2 87.5MHz
Confirmation 108MHz
AM RF signal
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
FM RF signal
generator
75kHz frequency deviation by
400Hz signal.
Output level : as low as possible
TP27 (ANT IN
)
(GND)
0.01
µ F
set
16
Ω
J101 (phones)
level mete
r
digital voltmeter
(DC range)
TP19 (VT)
(GND)
[MAIN BOARD] (Conductor side)

Sony WM-FS473 Specifications

General

Brand	Sony
Model	WM-FS473
Category	Cassette Player
Language	English