![background image](http://html.mh-extra.com/html/samsung/sgh-e390/sgh-e390_service-manual_1190563047.webp)
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
9-8
9-5. Microphone Part
Resolder the R701 and R702
Check the connection status
of MIC(MIC600)
Check the resistors
R701 & R702
Re-Solder the Mic (MIC600)
END
No
Yes
Yes
Yes
Yes
No
Check MIC_BIAS
= ' H' ?
No
Resolder R600, TA600, R603, R604
Microphone does not work
Check the MIC
No
Replace the microphone
Yes