Table of Contents
Advertisement
SGH-E620 Flow Chart of Troubleshooting
2-4.Microphone Part
* Call with Sim before testing.
MicroPhone does not work
Check the soldered
status of microphone
Check the reference
voltage on mic path
R437, R439 ≒ 2.0V
Is microphone OK?
Yes
Yes
Yes
Yes
END
No
Resolder microphone
No
Resolder or change
R429,C422,R433,R432,R437
R434,C429,R435,R436,R439
No
2
1
2-8
Check
U100
1
1
1
2
Advertisement
Table of Contents
