Sony WM-10 User Manual

REPAIR KNOW HOW
WM-1 0/WM-20
DESCRIPTION
CAUSE
REPAIR
NO OPERATION
MOTOR COIL SHORT CIRCUITING
FPCP CUT AT HP JACK PORTION
BRIDGE BETWEEN R302 AND S3 0 7
NG BELT
NO operation WITH BATE
NG SOLDERING AT DC JACK PORTION
B ATT ©WITH LEAD WIRE PULLED
NO OPERATION with ext
POWER
NG CONTACT'S OF EXT POWER JACK
NO FF
NG S303-2 CONTACT
NO SOUND
5303=2 TOUCHING
head LEADWIRE TORN
VOL (RV301) DEFECTIVE
NG HEAD LEADWIRE (YEL) SOLDERING
NO ONE CH SOUND
(OSCILLATION)
NG CIQ2, C203 SOLDERING
NO ONE CH SOUND/BIG NOISE
HEADPHONE DEFECTIVE
NO ONE CH SOUND
RV301 DEFECTIVE
SOUND REMAINS IN SMALL
INCREASE C303 VALUE
, AMP NOISE
BATT LEADWIRE PRESSED
L-CH NOISE
POWER 1C (TC303) DEFECTIVE
BUZZER SOUND
BATT© TERMINAL DIRTY
CONTACTS CLEANING
{DAIFRON SOLVENT)
HUM NOISE
HUM NOISE IS OK WHEN
LED GOES OUT
BATT ©TERMINAL DIRTY
CONTACTS CLEANING
(DAIFRON SOLVENT)
INTERMITTENT SOUND
BATT ©TERMINAL DIRTY
CONTACTS CLEANING
(DAIFRON SOLVENT)
LOW POWER NOISE
intermittent sound or
1 NOISE WITH SHOCK
BATT TERMINAL NO FLESILIENT
NOISE WHEN PRESSING UNIT
NG GROUND PLATE SOLDERING
MOTOR NOISE
MOTOR WHEEL AND COIL TOUCHING
NO C305 SOLDERING
FRICTION NOISE
MAGNET AND COIL TOUCHING
HONOURAL SOUND WHEN
TURNING VOL
VOL (RV30I) DEFECTIVE
OSCILLATION
AUDIO PCB PATTERN TOUCHES TO REW BUTTON/
ng ground plate soldering
BAIT HEAT
MOTOR COIL (IIALL DEVICE OPEN)
SLOW SPEED WITH SHOCK
COIL SHORTCIRCUITING
TOO FAST SPEED
NG SOLDERING AT MOTOR TERMINAL
NO FF/REW ROTATION
ROTATION SW SHORT CIRCUITING WJTII
SOMETHING
FF/REW AUTOOFF
NG ROTATION SW (S901) SOLDERING
NO STOP WHEN STOP BUTTON
RELEASED
S303-I TOUCHING TO FFCB
FPCB PATTERN BRIDGE AT DC JACK PORTION
RESOLD S 303-1
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Sony WM-10 Specifications

General

Brand	Sony
Model	WM-10
Category	Cassette Player
Language	English