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LGE Internal Use Only
Copyright © 01 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
SETTING : Enter the engineering mode, and set vibrator on at vibration of BB test menu
START
Check the soldering
of vibrator ?
Resolder the Pad.
No
Yes
Replace vibrator
Yes
Yes
Check the TP1
Is PWM Signal OK?
Yes
Replace U01
No
Is the voltage at VB401
(+) high?
Replace the Pad
No
Vibrator
Working well !