Only For Training And Service Purposes - LG KP235 Service Manual

CHECKING FLOW
SETTING : Enter the engineering mode, and set vibrator on at vibration of BB test menu
START
Is the voltage at pin 3
of Q300 high (0.66V)?
YES
Is the voltage at pin 2
of Q300 low (2.3V) ?
YES
Is the voltage at pin 1
of Q300 high (VBAT) ?
YES
Check the soldering
of vibrator ?
Replace vibrator
Vibrator
Working well !
Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

NO
NO
NO
NO
YES
YES
- 53 -
4. TROUBLE SHOOTING
Check the soldering
of R335, R336
Check the soldering
of R332,R334
Check the soldering
of R333, Q300
Resolder or Replace vibrator
LGE Internal Use Only