LG GS290 - Page 77

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4. TROUBLE SHOOTING
GS290 Operational Description Revision B
LG Electronics 79/136 LGE Property
Assemble
Replace Vibrator
Check PWM
Signal (TP3&TP4)
Check U302&Q300
replace it
Check U302or
replace it
STAR
T
Yes
No
Check Vibrator contact
Yes
T
P1(VBAT) of
U302 and TP2 is
High?
No