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6. Speaker Part
There is no sound from speaker
Is the terminal of speaker
YES
Are there any signal
at the pin #5,7 of U401?
YES
Pin #4 of U401
is Low?
YES
Check U402
SGH-X120 Flow Chart of Troubleshooting and Circuit Diagrams
is O.K?
YES
The type of sound from
the speaker is Melody?
NO
NO
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NO
Are there any signal
at the pin #3,9 of U401?
NO
Check
U201,
Pin #4 of U401
NO
U401
Check U200
END
2-7
Replace the speaker
NO
YES
is High?
YES
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