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5. Troubleshooting Flowchart
No Audio output : Flow chart
1.
No Audio output
Yes
Check audio connector
Connected properly
Yes
Check J19 has correct
waveform
Yes
Replace J19
No
Firmly connect the
connector to right place
No
Check U6.U7 Pin2.3.5.6
waveform is correct
Yes
Check U6.U7 Pin4.8
voltage is correct
Yes
Replace J19
11
No
Send back to zinwell
No
Check U6.U7 Pin4.8
voltage is correct
Yes
Send back to zinwell
No
Replace U10
or U24
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