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10-1-6. Speaker Part
Speaker does not work
Is the terminal of
Speaker OK?
YES
Check the
pin4, 5 o f CN4 01 "HIGH"
YES
Check the circuit
around U406
YES
Check the voltage of
R449, R443 i s high
YES
Is speaker OK?
YES
END
NO
NO
NO
NO
NO
10-11
Flow Chart of Troubleshooting
check the specker connector
CN401
①
Change or resolder
CN401
②
Change or resolder
around U406
③
Check
U200
Change speaker
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