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AUX in does not work
AUX in does not
work
Go
Check voltage at U18 PIN16 (6V), check
12V on Main Board whether normal or not
Yes
Check Main Board U18 Pin4, Pin11 signal
input whether right or not
Yes
Check
U18
or not
broken
Yes
Replace U18 74HC4052
74HC4052
whether
5-8
No
Refer to Power Board CON501
No
Check AUX IN connector
Check Main Board power supply
No
circuit.
Trouble shooting Chart
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