Table of Contents
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SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams
2-1-11. Bluetooth Part
BT connection disable
Check BT function ON
YES
Check VDD_30D is
around 3V
#9pin of U605(C606)
YES
Check 13MHz Clock on
C909
YES
Check "High" signal
on R904
YES
Check the
assembled status of
AN900
YES
Check "High" signal
On C910
YES
Check the signal of
F900 at pin2
YES
END
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NO
NO
NO
NO
NO
NO
NO
SAMSUNG Proprietary-Contents may change without notice
Enable BlueTooth
Check U605 and change
Check OSC901 and
change
Check UCP100
Resolder or change
AN900
Check F900 and U900
exchange F900
2-26
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