Samsung SGH D900i Service Manual - Page 64
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9-18. Bluetooth part Bluetooth does not work Yes DUF 700 pin 4 ≥ -4dB Yes C700, C703 (+position), is ≥ 1.8V Yes C701,C702,C706,C707 is ≥ 1.5V Yes TP702, TP703, TP705 ≥ 1.8V Pin A5 ≥ 1.7V(32kHz) Yes Check U200 Yes END Flow Chart of Troubleshooting No Resolder or replace L705,L704, ANT700 No Resolder C700, C703 and check the PMU part No Resolder C701,C702,C706,C707 check or Replace U706 No check TP702, TP703, TP705 check or Replace U706 9-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization
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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-27
9-18. Bluetooth part
DUF 700 pin 4 ≥
-4dB
Bluetooth does not work
C700, C703 (+position),
is ≥ 1.8V
Resolder C700, C703 and
check the PMU part
No
Yes
No
Resolder or replace
L705,L704, ANT700
Yes
No
END
TP702, TP703, TP705 ≥
1.8V
Pin A5 ≥ 1.7V(32kHz)
check TP702, TP703, TP705
check or Replace U706
Yes
Yes
C701,C702,C706,C707 is
≥ 1.5V
Resolder C701,C702,C706,C707
check or Replace U706
No
Yes
Check U200
Yes