Sony wm wx 50 service manual

Page 2

~WM -WX5O

TABLE OF CONTENTS
Section Title Page
Spacificau'ons .............................................................. 1
1.GENERAL
Features .....

Precautions -
Notes on Using the Wireless Headphone Receiver--
Pans Identification ..........................................
Installing Batteries ' '~
Tape Playback """"
Maintenance ...........................

2. DISASSEMBLY

3. BLOCK DIAGRAM ................................................... 7
4, ADJUSTMENTS ..................................................... 9
5. DIAGRAMS

5-1. Semiconductor Lead Layout -
5-2. Printed Wiring Boards -
5-3. Schematic Diagram ~~~~~

s. EXPLODED VIEWS ------------------------------------------------ 16

7. ELECTRICAL PARTS LIST ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 18

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 conduc-
tor 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

0 Never reuse a disconnected chip component.
0 Notice that the minus side of a tantalum capacitor
may be damaged by heat.

[Precaution when replacing MOTOR (M901)]

1. Since motor (M901) manufactured by KATSURAGAWA or
SANKYO has been used for this model, please add or eliminate
R601 as follows :

Manufactured by KATSURAGAWA : R601 should not be
mounted. (Should be eliminated.)
Manufactured by SANKYO : R601 should be moumed, (Should
be added.)

2. Refer to figure 1 below for judgment.

7 : Manufactured by KATSURAGAWA

: Manufactured by SANKYO

SAFETY-RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BY MARK A OR 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 SUPPLEMENTS PUB-

LISHED 3! SONY.