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the px 700 suddenly touch response or the sensitive soft or hard tap not working function keys not working and also the demo key the rest works fine e.g play/rec , metronome ,split,grandpiano .. the other one when i turn on the px 700 it default to string or harpsichord thanks in advance for the help

I appreciate it thank so much for helping, i gonna try replace ac adapter and if that won't work , i am going to seek apiano repair man or a casio technician thanks a bunch !

hello guys how do i factory reset the casio privia px 700? and also i have another problem suddenly i am playing the piano and it shut off and only the led red at the side of the piano is the only lighting on. none of the function keys or tone etc is lighting , i try to turn off and on same thing only the red led is lighting on the side of the piano and not working at all , i try to turn off and on again, and it turn on but again it shut off only the led on the side is on should i replace the ac adapter or i had to do something with the piano to press ? thanks in advance on help