Samsung SGH-E390 - Receiver Part

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Flow Chart of Troubleshooting
9-14
9-8. Receiver Part
Check the power of analog
switch(U822, U823).
Is L821, L822 = 3.8V?
Resolder L821, L822
END
No
Yes
Yes
Receiver does not work
Check the 'AUDIO_SEL' Pin
of U822, U823.
Is Pin 4, 9 "L"?
Check UCP200
No
Yes
Is Receiver working?
Replace the Receiver
No
Yes
Check the connection
status of Receiver
No
Resolder the receiver
Yes