Flow Chart of Troubleshooting
9-6
9-1-4.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
R321
≒
2.0V
Yes
Check
C359,R328,R332,C360,R327R329,C351,C35
5,R326,C358,TA206,R321,C357
No
Is microphone OK?
Yes
Check
UCP301
No
1
2
C357
C361
R332
C360
R330
R321
C351
R327
C358
MIC301
C359
C350
TA306
V306
R328
R329
V307
VCCA_2.9V
R326
C355
MICOUTP
MICINP
MICINN
MICOUTN
Содержание SGH-X510
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