Sony wm ex 12 service manual

Page 1

SERVICE MANUAL

WM-EXIZ

U8 Model
Canadian Model
AEP Model

UK Model

E Model

SPECIFICATIONS

Power requirements 3 V DC batteries R6 (AA) x 2
External DC 3V power sources

Battery Iile (Approximate hours)

Model Name Using Similar Mechanism WM-EXIO

Tape Transport Mechanism Type MT'WMEXIO'AS

Sony Alkaline AM3 (N) 8hrs.
Sony SUM»3 (NS) 3.5hrs
Rechargeable Battery

rust Canadian models) 25'

Accessories supplied Slereo headphones (1) Beltclip (1)

Battery Charger (1} (US, Canadian modeisl
Rechargeable batteries (2) (US, Canadian modelsl
AC power adaptor AC-DZL

Car battery cord DCC-7O

Battery case EBP-SOOB

Optional accessories

Your dealer may not handle some at the above lisled accessories. Please ask
the dealer lor detailed inlormationv

Design and SDBCIIICEIIOHS subject to change Without noiice.

MT-WMEXIOM-48

FLEXIBLE CIRCUIT BOARD REPAIRING

I 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).

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

NOTES ON CHIP COMPONENT REPLACEMENT

I Never reuse a disconnected chip component,

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

CASSETTE PLAYER
S 0 NE

Page 2

WM-EX12

SECTION 1
DISASSEMBLY

Note: Follow the disassemblv procedure in the numerical order givent

CABINET (REAR) ASSY
0 cassette lid assy

battery .- / Jaw iii-ii:- \m

Insert the
precision screw driver
(1.4mm flat-blade)
0 in to the slit at claw
0% "and release the claw.

' cabinet (rear) assy

9

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