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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting and Circuit Diagrams
9-13
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9-1-6. Speaker Part
Check the circuit
around U502
Resolder the board
to speaker
NO
Change or resolder
C504,C503,R504,R501
NO
Check
UCP300
NO
YES
YES
Speaker does not work
END
Is the terminal of
Speaker OK?
Check the
pin 2 of U502 = "LOW"
NO
①
②
Change or resolder
R511,R510
YES
Check the Pin10
of UCP300 = "LOW"
YES
Check the Pin2
of UCP300 = "LOW"
NO
Check
UCP300
YES
③
④
Is speaker OK?
NO
Change speaker
YES