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Flow Chart of Troubleshooting
9-10
9-5. Microphone Part
Check the MIC
Yes
Microphone does not work
Check the JACK_IN signal
No
Check F500, PIN 5
= "H"
No
Yes
Yes
Yes
Yes
No
END
Resolder the TA602, R605, R608, R609
Resolder MIC
Check the circuit
from UCP200 to MIC
Check the connection
of MIC
Replace the MIC
No
Summary of Contents for SGH-E740S
Page 35: ...8 PCB Diagrams 8 1 Top ...
Page 36: ...PCB Diagrams 8 2 Bottom ...