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4. TROUBLE SHOOTING
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Start
Check t he volt age lev el
of U101 = Vbat?
No
Check
The battery
Yes
Check t he Sig nal,
R202,R208
Yes
No
Check
U101
Check t he Lev el o f
R210 = HIGH?
No
Check
SPK_EN sig nal
& R210
Check t he Sold er
Of Speak er
Yes
No
Re-Asse mble
or Re-place
Speaker
Try again
or Change the Board
Yes
CHECKING FLOW (Speaker)
Summary of Contents for KP151Q
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