Sony WM-20 Troubleshooting Guide

WM-10/WM-20
Reference
When checkings it is easier to see the operation if power is turned off and the flywheel is rotated by hand.
EFWD]
When the @ PLAY button is pressed, the PLAY lever is locked by the lock plate,. S303-I goes on, and the head
comes into contact with the tape.
Motor rotation is transmitted in this order: motor —belt — © inversion wheel . @ T reel gear assy
[FF]
When # +4 button is pressed, the FF lever is locked by the lock plate, S3G3-I and $303-2 go on, © FR lever
(C) is pressed, FR lever (A) is pressed. Motor rotation is transmitted in this order: motor-^beit {jjjj) inversion
wheel-p- @ T reel gear ass’y small gear - ► © T reel gear ass’y,.
[REW]
When # ► ► button is pressed, the RBW lever is locked by the lock plate, S303-1 and $303-2 go on, © FR
lever (C) is pressed and FR lever (A) is pressed.
Motor rotation is transmitted in this order: motor —belt - © inversion wheel © motor chassis ass T y
small gear @ S reel gear.
[STOP]
When @ STOP button is pressed, PLAY lever, FF lever and REW lever locks are released, S303-1 and $303-2
turn off, and tape transport operation stops.
I
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Sony WM-20 Specifications

General

Brand	Sony
Model	WM-20
Category	Cassette Player
Language	English