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Flow Chart of Troubleshooting
9-17. Bluetooth part
Bluetooth dose not work
Yes
DUF500 pin2
≤-2dBm
Yes
C509, R519
(+VDD_IO_LOW)≥1.8V
C509(+VDD_BT)≥1.8V
Yes
Check for the clock
at C513,C514
= 26MHz
Yes
END
No
No
No
OSC500,C513,C514,R521
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Change or Resolder
C504,ANT500
Change or Resolder
R519,C509,C511
Check PMU part
Change or Resolder
9-24
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