Receiver Part; Speaker Part - Samsung SGH-B500 Service Manual

Flow Chart of Troubleshooting

10-1-5. Receiver Part

There is no sound from the Receiver
Is the terminal of Receiver
Is there any signals at the
pin#P11 and pin#R12 of
UCD300 ?

10-1-6. Speaker Part

There is no sound from the Buzzer
Is the terminal of Speaker
Is there any signals at the
pin#R13 and pin#R14 of
Yes
O.K ?
Yes
Yes
END
Yes
O.K ?
Yes
UCD300 ?
Yes
END
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No
Replace the Receiver
No
Check UCD300
Check U101,U102 (LCD PCB Part)
No
Replace the Speaker
No
Check U401,R414,R415
10-13