Microphone Part-Earphone Mic - Samsung SGH-Z720 Service Manual

Flow Chart of Troubleshooting
9-6 Microphone Part - Earphone MIC
Earphone mic. does not work
Yes
Not OK
Check the connection
Resolder IFC600 pin 3,4
from IFC600
OK
Check the circuit
Not OK
from IFC300 pin 3,4
Resolder R502, C515, C520
to UCP300
OK
No
Change a Earphone
Is Earphone MIC working?
Yes
END
9-10
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization