SONY WMFX269
Manual de Servicio

TUNER SECTION
FM SECTION
 

0 dB=1 µV

AM SECTION Setting: RADIO ON/OFF switch: ON BAND switch: AM AM Tuning Voltage Adjustment

Setting: RADIO ON/OFF switch: ON BAND switch: FM FM Tuning Voltage Adjustment
 

digital voltmeter MAIN board (VT) (GND)
+ �

digital voltmeter MAIN board (VT) (GND)

+ �

AM TUNING VOLTAGE ADJUSTMENT Adjust for a 1.0 + 0.1 Vdc reading on digital voltmeter
�0

FM TUNING VOLTAGE ADJUSTMENT Adjust for a 9.0
+0.5 �0

Vdc reading on digital voltmeter L3 108 MHz

L4 530 (531) kHz

( ): Except US model AM IF Adjustment, AM Tracking Adjustment
AM RF Signal generator Put the lead-wire antenna close to the set.

FM Tracking Adjustment
FM RF signal generator MAIN board
  

 

0.01 µF

(FM RF IN) (GND)

Modulation: 400 Hz, 30% Output level: as low possible.



Modulation: 1 kHz, 75 kHz dev. (100%) Output level: as low possible.

level meter (AC: 0.5 � 5 V range) 16 � + �

level meter (AC: 0.5 � 5 V range) 16 � set + �

set

2 jack
* Repeat the procedures in each adjustment several times, and the tracking adjustment should be finally done by the trimmer capacitors.
AM IF ADJUSTMENT Adjust for a maximum reading on level meter

2 jack

FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L2 87.5 MHz

T1 1000 (999) kHz

( ): Except US model
AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L1 (BAR ANTENNA) 620 (621) kHz CT1 1400 (1395) kHz

( ): Except US model

� 10 �