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Rusty, Music Professional
Category: Electronic Musical Instruments
Satisfied Customers: 5992
Experience:  Sound Engineer, Electrical Issues, Tone Consulting
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CTK_ 1150 After using the headphones, there was no keyboard

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CTK_ 1150
After using the headphones, there was no keyboard sound.
Hello, my name is Rusty. This problem occurs with the headphone jack sticks inside of the keyboard. You'll need some rubbing alcohol and some patience. Dip the male jack in the alcohol, and run it in and out of the headphone jack several times. Repeat until the circuit starts to work again. When you insert the jack, it breaks the circuit that goes to the main amplifiers, and activates the headphones. If a little bit of tarnish builds up inside, it can prevent the circuit from closing again. The alcohol breaks up the tarnish.
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Customer: replied 2 years ago.
Problem solved, thank you.