SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
10-6
10-4. Microphone Part - Phone MIC
Phone MIC does not work
Yes
Not OK
Check the connection
of MIC
Solder MIC again
Yes
Replace MIC
OK
Is Phone MIC working?
OK
Solder TA401, R404, R405 again
Check the components
which are connected to
MIC_BIAS_2.15V
Solder C427,C434,L409, L410 again
Check the circuit
of MIC PART
OK
END
Solder C330 again and check PMU300
Check MIC_BIAS_2.15V
( When U200 operates
and call is connected )
Not OK
Not OK
No
Not OK
OK
