Sony WM-FX271 Service Manual

– 8 –
2 jack (J301)
set
16
Ω
level meter
(range: 0.5-5 V ac
)
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
digital
voltmeter
TP (VT)
Main board
• Repeat the procedures in each adjustment several times, and the
tracking adjustment should be finally done by the trimmer ca-
pacitors.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
1,000 (999) kHz
( ): Except US, Canadian model
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 CT1
620 (621) kHz 1,400 (1,395) kHz
( ): Except US, Canadian model
TUNER SECTION 0 dB = 1 µV
• FM Section
Setting:
RADIO ON/OFF switch: ON
BAND switch : FM
FM Tuning Voltage Adjustment
FM TUNING VOLTAGE ADJUSTMENT
Adjust for a 8.5 ± 0.3 (14.5 ± 0.5) Vdc reading on digital voltmeter.
L3
108 MHz
FM Tracking Adjustment
Modulation: 1 kHz, 75 kHz dev. (100%)
Output level: as low as possible
digital
voltmeter
TP (VT)
Main board
FM RF signal
generator
0.01 µ F
(FM RF IN)
Main boar
d
(GND)
2 jack (J301)
set
16
Ω
level meter
(range: 0.5-5 V ac
)
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
87.5 (65.0) MHz
( ): East European model
• AM Section
Setting:
RADIO ON/OFF switch: ON
BAND switch : AM
AM Tuning Voltage Adjustment
AM TUNING VOLTAGE ADJUSTMENT
Adjust for a 1.1 ± 0.1 Vdc reading on digital voltmeter.
L4
530 (531) kHz
( ): Except US, Canadian model
AM IF Adjustment, AM Tracking Adjustment
Modulation: 400Hz, 30%
Output level: as low as possible

Sony WM-FX271 Specifications

General

Brand	Sony
Model	WM-FX271
Category	Cassette Player
Language	English