Advertisement
Flow Chart of Troubleshooting
9-5. Microphone Part - Earphone MIC
Earphone MIC does not work
Check the connection
when ear jack is inserted.
Is Earphone MIC working?
Yes
of IFC500
OK
Check JACK IN is low
OK
Check MIC_BIAS_2.15V
( When U200 operates
and call is connected )
OK
Check the circuit
of EAR MIC
OK
Yes
END
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Not OK
Solder pin 3, 4 of IFC500 again
Not OK
Solder IFC500, L505, L508 again
Not OK
Check Pin #F2 of PMU300
Not OK
Solder R413, R417 again
Repeat the sequence
No
9-8
Advertisement
