LG KS660 Service Manual page 77

4. TROUBLE SHOOTING
U205
Check Vibrator sodering
Pin6 of U205(B_EN) is
Pin3 of U205(VOUT) is
VIB_PWM Signa of
Check VIB_OUT_N/P
Replace Vibrator
LGE Internal Use Only
Check the driver IC(U203) and LDO(205)
U203
START
high?
Yes
3.1V?
Yes
Q202 is OK?
Yes
OK
Assemble
No
Replace U205
No
Replace main board
No
Replace U203
- 78 - Copyright © 2008 LG Electronics. Inc. All right reserved.
Check the vibrator
soldering
Only for training and service purposes