LG GB210 - Page 68

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4. TROUBLE SHOOTING
START
Check TP1 to make sure the
connection between speaker and
board
Speaker
Working well!!
Check TP2 to see the audio
signal
No
Yes
Change the U102
Connect well the Speaker
connector.
No
CHECKING FLOW
Check, TP3 is VBAT?
No
Yes
Change the main
board
Yes
Is speaker properly
working?
No
Change U201
Yes