Microphone Part - Samsung SGH-X481 Service Manual

2-1-4.Microphone Part

* Call with Sim before testing.
MicroPhone does not work
Check the soldered
status of microphone
Check the reference
voltage on mic path
R418 ≒ 2.0V
Is microphone OK?
Yes
Yes
Yes
Yes
END
SGH-X481 Flow Chart of Troubleshooting
No
Resolder microphone
No
Resolder or change
No
2-7
C423
2
Check U100
1