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Flow Chart of Troubleshooting
10-12
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10-1-7. Speaker Part
There is no sound from the Speaker
Is the terminal of Speaker
O.K ?
Replace the Speaker
Is there any signals at
the pin#25 and pin#26
of U403 ?
END
Yes
Yes
Yes
No
No
Check
U403,C429,C431
Is there any signals at
the pin# 5 and pin# 10
of U402 ?
Check
U402
No
Yes
③
④
Summary of Contents for SGH-B300
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