SAMSUNG Proprietary-Contents may change without notice
Level 3 Repair
8-13
This Document can not be used without Samsung's authorization
Earphone MIC
does not work
NO
Change the
Headset
Is the
Headset
O.K?
YES
Check the voltage at
C300
(MIC_BIAS >
1.6V
) ?
Check the
UCP200, R300, R301
NO
YES
Check the
circuit
of EARMIC PATH
(
C301, C302, C303, R306,
C306, C307
)
! FCAI RFC
#?P N?RF
NO
YES
Replace
IFC300
NO
Check the
IFC300
YES
END