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Flow Chart of Troubleshooting
9-8
9-5. Microphone Part - Earphone MIC
Earphone MIC does not work
Yes
Not OK
Check the connection
of IFC500
Solder pin 3, 4 of IFC500 again
Solder C407, R401, R407 and C419
again
Check the circuit
of EAR MIC
OK
OK
Solder C330 again and check U300
Check MIC_BIAS_2.15V
( When UCP200 operates
and call is connected )
OK
END
Solder IFC500, R506 again
Check
JACK IN is low
when ear jack is inserted.
Not OK
Not OK
Is Earphone MIC working?
Repeat the sequence
Yes
No
OK
Not OK
Summary of Contents for SGH SGH-M110
Page 28: ...Block Diagrams 7 2 7 2 RF Solution Block Diagram ...
Page 29: ...8 PCB Diagrams 8 1 Main top view ...
Page 30: ...PCB Diagrams 8 2 Main bottom biew ...
Page 75: ......
