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SONY WMFX269
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SONY WMFX269 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 10 (click to view)
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 Ω + –

level meter (AC: 0.5 – 5 V range) 16 Ω 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 –

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