LG KE800 Service Manual page 45

4. Trouble Shooting
Check Vibrator contact
Pin1 of U204 is high ?
1) Re-solder R211 & L202
2) Replace Vibrator
START
Yes
Pin3 of U204 is low?
Yes
Assemble
1) Check R210 & R212 can be short
No
2) Replace U204
3) Replace main PCB
No
Replace U204
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