Samsung GT-S3850 - Adjust the volume; Use the speakerphone feature; Use the headset; Send and view messages

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Level
3
Repair
8-4
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8-3.
Flow Chart of Troubleshooting
※
presetting methods for checking TP
-
GND
&
TP(exp. VBAT=
C302 ,
C303
)
using Oscilloscope
-
look over the coming out signal.
←
Oscilloscope
GND
TP
(
Test Point)