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Flow Chart of Troubleshooting
9-28
9-18. Bluetooth part
F404 pin 2 ≥ -4dB
Bluetooth does not work
C319, C318 (+position),
is ≥ 1.8V
Resolder C318,C319 and
check the PMU part
No
Yes
No
Resolder or replace
L301,L301, ANT900
Yes
OSC1001Pin3is
26MHz (1.4Vp_p)
Resolder OSC1001,
C325,C326,R312
No
Yes
No
END
R304, U1126, U1125 ≥
1.8V
C323 ≥ 1.7V(32kHz)
Resolder R304, U1126,
U1125, C323
check or Replace U1109
Yes
Yes
C321,C316,C317 is
≥1.5V
Resolder C316, C317,L303,C321
check or Replace U1109
No
Yes
Check UCP201
Yes