Receiver Part - Samsung SGH-Z620 Service Manual

9-1-7. Receiver Part

There is no sound from receiver
Is the terminal of receiver
Are there any signal
at the pin #5,8 of U303 ?
Are there any signal
at the R129,R132
Is receiver working ?
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is ok ?
YES
YES
YES
YES
END
9- 16
Flow Chart of Troubleshooting and Circuit Diagrams
NO
Replace the receiver
NO
Check the U303
and soldering
Check the UCP100
NO
and speaker related
NO
Replace the receiver
circuit