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Flow Chart of Troubleshooting
7-10
7-6. Microphone Part (Sub)
Check the connection status
of Sub_MIC
Resolder the Sub_MIC
END
No
Yes
Yes
Yes
Check MIC_BIAS
= ' H' ?
No
Resolder R500, R501, TA502, R505, R506
Microphone does not work
Yes
Check MIC_SEL2
= 'H' ?
No
Check the related circuit
Check the MIC
No
Replace the Sub_MIC
Yes