Sony wm fx 19 service manual

Page 1

WM-EXIEI

SERVICE MANUAL

US Model
A E P Model

UK Model
E Model

SPECIFICATIONS

Radio FM: 87.6-1 O7MHz(Germany). 87.5-103MHz(ltaly)

87.6-108MH2(US)
876-107.9MHz(Other countries)

AM: 526.5-l,606.5kHz(|taIy). 530-1r710kHz(US)

531 -1 ,602kHz(Other countries)

8 V DC Batteries R6 (AA) x 2

Power requirements
External DC 3 V power sources

Model Name Using Similar Mechanism New Mechanism

Emmy Playback Radio
(Approxmate hours) .
SonyAlkalIne AMa (N) 8hrs. 30hrs.
Sony SUM-3 (NS) 35 hrs. 15 hrs
Accessories supplied Stereo headphones (1) Beltclip (1)
Optional accessories AC power adaptor AC-DZL
Car battery cord DOC-70
Battery case E BP-sOOB

Your dealer may not handle some 01 the above listed accessories. Please ask the
dealer for detailed information.

Design and specifications subiect to change without notice.

Nola
This appliance contorms wilh sec Directive swans/52c regarding interlerenoe suppression

Dolby noise reduction manufactured under license tram Dolby Laboratories
Licensing Corporation.

DOLBY and the double-D symbol DD are trademarks of Dolby Laboratories

Licensing Corporation.

FLEXIBLE CIRCUIT BOARD REPAIRING

0 Keep the temperature of the soldering iron around 270°C
during repairing.

0 Do not touch the soldering iron on the same conductor of
the circuit board (within 3 times).

I Be careful not to apply force on the conductor when
soldering or unsoldering.

NOTES ON CHIP COMPONENT REPLACEMENT

0 Never reuse a disconnected chip component.

0 Notice that the minus side of a tantalum capacitor may be
damaged by heat.

Tape Transport Mechanism Type RAT-WMBEIEMZQ
TABLE OF CONTENTS

Section Title fig
1. DISASSEMBLY

- Cabinet (Rear) Assy .............................. 2

- Mechanism Deck and Main Board ................ 2

' Main Board ...................................... 3

- Cassette Lid Assy . . . .3

MB Board ...................................... 4

~ Dial Pointer Setting .............................. 4

2. ADJUSTMENTS
2-1. Mechanical Adjustments ...........

2-2. Electrical Adjustments ............................ 5
3. DIAGRAMS
3-1. Block Diagram .................................... 8
3-2. Schematic Diagram .............................. 10
3-3 Printed Wiring Board ............................ 13
4. EXPLODED VIEWS
4-1. Main Section .................................... 17
4-2. Mechanism Section .............................. 18
(MT-WMEX19-49 )
MT-WMEXlQM-49

5. ELECTRICAL PARTS LIST ......................

RADIO CASSETTE PLAYER

SONY;

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WM-FX19
SECTION 1

DISASSEMBLY

' Follow the disassembly procedue in the numerical order given.
CABINET (REAR) ASSY

cassette lid assy

battery

Insert the
precision screw driver
(14mm flat-blade)

0 in to the slit a! claw
"% "and release the claw,

' cabinet (rear) assy

Remove the cabinet (rear) assy,
(Release all claw 0 to o in
alphabetical order.)

MECHANISM DECK AND MAIN BOARD

Remove mechanism deck and main
board to the direction of the arrow.

\front cabinet assy and
cassette lid assy