Sony wm a 12 service manual

Page 1

WM-ZQ/AlZ/BlZ
"__ SERVICE MANUAL . WM

C anadlan Model

WM-A 72

AEP Model
UK Model
E Model

WM-B 72

French Model

WM-29

Photo: WM-A12

Model Name Using Similar Mechanism WM-A10/B1O
Tape Transport Mechanism Type MT-WMA12-O4

SPECIFICATIONS

Power requiremenis 3 V DC Baitenes R6 (AA) x 2
BID-700 rechargeable ballery
External DC 3 V power sources
Eaiiery lile (Approximate hours)
Sony Alkaline AM3 (N) 8 hrs.
Rechargeable BP~700 2 hrs.
Accessories supplied Stereo headphones (1] BelICllD l1)
Baliery lube (1)

Opiional accessories Rechargeable battery (BF-Voollcharger (BC-700) kll
BPC-7OOK
AC power adaptor AC-D2L
Car battery cord DCC>70
Bailery case EBPrSOOB
Stereo active speaker system SRS-SO SRS-SO

Desxgn and specifications subjeci to change wrlhoui notice.

CASSETTE PLAYER

SONY®

Page 2

WM-29/A12/B12

SECTION 1
DISASSEMBLY

[2] Rear Cabinet Removal
Location and shape of claws

The symbols (9-0) show the order to uncouple the
linkage of the claw, and names of the parts.

0 insert a precision screwdriver (width: 2.0mm) into the
© Cassette HolderAfly slit of front cabinet, lift the front cabinet as shown in
the figure for making a clearance ( 9 ).

0 Insert a wedge in the clearance.

Note: Follow the disassembly procedure the numerical order given.

1' cl: Precision Screwdrivers ( G) , width 0.8mm, lAmm, and 2.0mm)
Adhesive tape 1-2cm
Wedge (hand 'madel

Material . . . soft plastic (such as PVC) etc.
Sizes are for the reference.

<2: G!
Emm~ -- E 2mm /
S
- - 0.3mm

3mmA

6 Insert a precision screwdriver (width: 20mm), and lift
[1} Cassette Holder Removal the front cabinet so that the claw (3 comes off.

Coil Spring

Open the cassette holder.

OWhile pressing the edge of the cassette holder, pull up it
in order to take off the cassette holder.

OTake off the end of coil spring with a precision screw-
driver (width: 0.8mm).

0 In a similar way as procedure 6 , uncouple the linkage
of the claw O and ©.