User Guide

SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
2-7
4.Microphone Part
* Call with Sim before testing.
Check the soldered
status of microphone
MicroPhone does not work
Resolder microphone
END
No
Yes
Yes
Check the reference
voltage on mic path
C201
≒
2.0V
Yes
Resolder or change
R203, C209, R204, R201, R200,
C200
No
Is microphone OK?
Yes
Check U501
No