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