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Flow Chart of Troubleshooting
9-18. Bluetooth part
Bluetooth does not work
DUF100 pin 2 ≥ -
4dB
Yes
C120, C121
(+positin) ≥ 1.8V
Yes
OSC101 pin 3 =
26MHz (1.4Vp_p)
Yes
C126, C127, C131
≥ 1.5V
Yes
R115 ≥ 1.8V
C134 ≥
1.7V(32kHz)
Yes
Check UCP200
END
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No
Resolder or replace C123,
C128, ANT102
No
Resolder C120, C121 and
check the PMU part
No
Resolder
OSC101,C129,C138,R122
No
Resolder C126, C127, L107,
C131 check or replace U103
No
Resolder R115, C134
check or replace U103
9-28
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