Vibrator - LG GT540 Service Manual

4. Trouble Shooting

4.17 VIBRATOR

Linear Motor signal's path are MSM7227
U501 uses the PWM pulse.
Output of U501 OK? (TP1, TP2)
LGE Internal Use Only
Motor Driver IC(U501)
START
Rebot
Work well?
No
No
TP3 is 3.3V?
TP4 is high?
No
Check SW
- 18 -
SUB FPCB.
Yes
END
Yes
Check SUB FPCB
Yes
Check an U501 SMT Status by X-ray,
Exchang it
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