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LGE Internal Use Only
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Only for training and service purposes
4. TROUBLE SHOOTING
CHECKING FLOW
A condition is good?
START
Check of BT Ant condition
NO
YES
YES
BT will
work properly
Check condition of
matching components
C407,C421,(TP1,TP2)
A condition is good?
NO
YES
Give the additory solder in
(C437,C445,C446)
Replace Ant400
Check Bias Voltage
VAUX at C404(TP4)
1V8_VDD at C405(TP3)
YES
NO
Replace
U101
CLK32K
C410(TP5)
YES
NO
Replace
U101
Check BT_CLK
C411(TP6)
NO
Replace
U101