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Flow Chart of Troubleshooting
9-13
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9-6. Speaker Part(Melody)
Speaker does not work
Is the terminal of speaker
OK?
check the specker
No
Yes
No
Check C708, C709
Check the
Pin
#A4, #B4
of
U700
Yes
①
Yes
②
Change speaker
Is speaker OK?
END
No
No
Yes
Is there any signal at
L804
,
L805
?
Check
L804, L805
(If it has problem replace it)