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Flow Chart of Troubleshooting
9-6. Speaker Part(Melody)
Speaker does not work
Is the terminal of speaker
SPK_P & SPK_N
Check the output circuit of
U504(Audio AMP)
OK?
Yes
Check the
"HIGH"
Yes
Yes
Is speaker OK?
Yes
END
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No
check the speaker
①
No
Resolder SPK_P (L409) & SPK_N
②
No
Change or resolder
No
Change speaker
9-11
(L410)
around U304
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