Table of Contents
Advertisement
CHECKING FLOW
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
START
Check the state of
contact of speaker
Yes
Check the Audio signal
R220,R219
Yes
Check the Power voltage
Pin A3 of U201 = VBAT
And work pr o perly ?
Yes
Check the Output
Audio signal
Pin B3,A1 of U201
And work pr o perly ?
Yes
Speaker
Working well !!
4. TROUBLE SHOOTING
No
Replace/Change speaker
No
Re-download software
or Change the U104
No
Re-soldering U201
No
Change the U201
- 59 -
LGE Internal Use Only
Advertisement
Table of Contents
