Sony wm fx 20 service manual

Page 1

WM-FXZU

SERVICE MANUAL '-

US Model

AEP Model
UK Model
E Model

Radio section
Frequency range

Antennas
Tape player section

Frequency response
Power output

Power requirements

Battery life

Dimensions

Weight
Accessories supplied

Model Name Using Similar Mechanism

WM-AF23/BF23

Tape Transport Mechanism Type

MF-WM FX20

SPECIFICATIONS

FM: 87.5-103MHz

AM: 530-1,710kH1(10kHz step) (US model)
531-1,602kHz (9kHz step) (Except US model)
530-1.610kHz(10kH1 step) (Except US model)

FM: Headphone oord antenna

AM: Bullt~ln ferrite bar antenna

40-15,000Hz
10mW+10mW 260 at DC operation (US model)
10mW+10mW 24/169 at DC operation (Except US
model)
Headphones (stereo miniiack): load impedance 8-
300!)
3V DC
Two R6 (size AA) batteries
DC IN 3V jack accepts:
Optional Sony EBF-SOOB battery case for use
with RZO (size D) batteries
Optional Sony AGDZM power adaptor
US model: 120V AC, SOHz
AEP. UK, Germany model: 220V AC, 50Hz
E model: 120V AC, SOHz or 220V AC, 50H:
Optional Sony Dec-7o car battery cord for use
with 12V car battery
Approx. 9 hours on tape playback and approx. 36
hours on FM reception, using Sony alkaline bat-
teries AM3 (N)
Approx. 92x126x40.5mm (w/h/d) not incl. project-
ing parts and controls
Approx. 278 9 incl. batteries and belt clip
Belt clip (1)
US,AEP, UK, Germany model: Stereo headphones
(open-airtYpe. 1)
E model: Stereo earphones (open-air type, 1)
Battery tube (1) (US model)

Optional accessories

AC power adaptor AC-DZM
Battery case EBP'SODB

Car battery cord DCO-70

Notes on stereo earphones
- Ear adaptors are attached on the stereo earphones.

if the earphones do not fit your ears. detach the ear adaptors.

Note: Use only the recommended AC power adaptor
or car battery cord manufactured by Sony.
Polarity otthe plugs ofother manufactures may
be different.

Note
This appliance conforms with EEC Directive 37/308lEEC regarding interfer-
ence suppression.

- Put the cord behind your neck. The knot cannot be moved.

Your dealer may not handlesome ofthe above listed optional accessories.
Please ask the dealer for detailed information about the optional accesso-
ries available in your country.

93%

Polarity or this unit

Design and specifications subject to change without notice.

AAmo CASSETTE PLAYER
SONY;

Page 2

WM-FXZO

TABLE OF CONTENTS

Minn Im: Bag: 5mm ling Rage.
1. GENERAL ........................................................... 2 5-1. Block Diagram ................................................... 6
5-2. Pin functionofIC ......... 9
2. DISSASSEMBLY ............................................... 3 5-3- Printing VWing Boards 11
24. Cabinet, back ___________________ 3 5-4. Schematic diagram ........................................... 15
2-2. Panel assy, Front removal. 3
6. EXPLODED VIEWS. .. 17
3. MECHANICAL ADJUSTMENTS ...................... 4 54- Cabine dim" 7
6-2. Mechanism section .................. .. 18
4. ELECTRICAL ADJUSTMENTS ........................ 4
7. ELECTRICAL PARTS UST .. 19
5. DIAGRAMS ......................................................... 6
SECTION 1 This section is extracted from
GENERAL instruction manual.

' 33"?)

Press Iwice

«/» To wind rigidly
I Ta siop

Notes on tape playback

- Do not open the meme holder while the up:
Is running

' Wedonotroeomandusingmmemmr
than 90 minutes.

Tc slop To cancel

mm 4m
5w altos;

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