Sony wm fx 43 service manual

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WM-FX43

SERVICE MANUAL us Model

Canadian Model
AEP Model
UK Model

E Model

TABLE OF CONTENTS Model Name Using Similar Mechanism WM2051
Tape Transport Mechanism MT-WM2051-43
GENERAL ....................................................... 2« 6
Messages, warnings and tips ............ 2
Test equipment, Jigs and material .. . 2
Location and function of controls .............. 3
Users instruction . . 4- 6

Service notes ............
REMOVAL ..................
BLOCK DIAGRAMS
SCHEMATICS AND BOARD DIAGRAMS.,.. 11-19

Semiconductor layouts ......

IC layouts ..........................
SPARE PARTS LIST .................................
Exploded views and mechanical parts.
Electrical parts.
ADJUSTMENTS
Mechanical measurements

Dolby noise reduction manufactured under license

from Dolby Laboratories Licensing Corporation.
DOLBY and the doubleD symbol D0 are trade-

Mechanical adjustments """ marks of Dolby Laboratories Licensing Corporation.

Electrical alignments ..........
Adjustment location...
SPECIFICATIONS ......

RADIO CASSETTE PLAYER
SONY;

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GENERAL

Messages, warnings and tips

SAFETY-RELATED COMPONENT
WARNINGII
COMPONENTS IDENTIFIED BY MARK A 0R
DOTTED LINE WITH MARK A ON THE
SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY
PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT
RAPPORT A LA SECURITEI

LES COMPOSANTS IOENTIFIES PAR UNE
MARQUE A SUR LES DIAGRAMMES SCHE-
MATIQUES ET LA LISTE DES PIECES SONT
CRITIQUES POUR LA SECURITE DE FONCTION-
NEMENT. NE REMPLACER CEs COMPOSANTS
QUE PAR DES PIECES SONY DONT LES
NUMERos SONT DONNES DANS CE MANUEL
OU OANS LES SUPPLEMENTS PUBLIES PAR
SONY.

Precautions

Notes on battery

- Romove the battrey when you will not use the
unit for a long time to prevent damage from
battery leakage and corrosion,

- When the sound becomes unstable, try a new
battery.

External power sources
Use only the recommended AC power adaptor or
car battery cord manufactured by Sony. Polarity
of the plugs of other manufacturers may be

different .
29
9

Polarity of this plug

Test equipment. Jigs and Material

Test equipment

Digital multimeter

FM RF signal generator
AM RF signal generator
Stabilized power supply
Speed checker

Wow and Flutter
Frequency counter

VTVM

Jigs

Test tape Part Number
- WS-48A (3kHz, OdB) 7-819-032-11

Cassette type torque meter
~ CQ-102C (normal direction) 8-909-708-22
- CQ-IOZRC (reverse direction) 8-909»708-26
_ CQ-201B (FF and REW) 8-909-708-41

Screw locking compound
Neji lock G (1401B) 7-432-11411