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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
Micro SD Card will
work properly
Micro SD Detect
OK?
START
Change Micro SD or
Replace J302
NO
YES
TP2
Is High?
NO
YES
Check out T_CLK & Data
Timing OK?
Re-download SW
NO
YES
YES
Replace Micro SD Card
CHECKING FLOW
Check TP1=2.85V?
YES
NO
Change U403