Receiver Part - Samsung SGH-C120 Service Manual

SGH-C120 Flow Chart of Troubleshooting

2-1-5. Receiver Part

There is no sound from the Receiver
Is the terminal of Receiver
Is there any signals at
the pin#A11 and
pin#N12 of U300 ?
2-1-6. Buzzer Part
There is no sound from the Buzzer
Is the terminal of Buzzer
Is there any signals at
the pin#A13 and
pin#N12 of U300 ?
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Yes
O.K ?
Yes
Yes
END
Yes
O.K ?
Yes
Yes
END
SAMSUNG Proprietary-Contents may change without notice
No
Replace the Receiver
No
Check U300,R423,R424
No
Replace the Buzzer
No
Check U300,D200,R218
2-12
①
②