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Flow Chart of Troubleshooting
9-12
9-6. Speaker Part(Melody)
Speaker does not work
Is the terminal of speaker
OK?
check the speaker
No
Yes
No
Resolder SPK_P (L409) & SPK_N
(L410)
Check the
SPK_P & SPK_N
"HIGH"
Yes
①
Yes
②
Change speaker
Is speaker OK?
END
No
No
Yes
Check the output circuit of
U504(Audio AMP)
Change or resolder
around U304