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CHECKING FLOW
Check of BT Ant condition
A condition is good?
YES
Check condition of
matching components
A condition is good?
Check Bias Voltage
VAUX_2V85 at C457
VDD_IO_1V8 at C458
YES
YES
LGE Internal Use Only
START
(C1, C2, C3)
YES
CLK32K
Check BT_CLK
YES
BT will
work properly
Check BT Ant pad on PCB /
NO
Antenna in rear case
NO
Give the additional solder in
NO
NO
NO
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4. TROUBLE SHOOTING
C1,C2, C3
Replace
U100
Replace
U100
Replace
U100
Only for training and service purposes
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