Please help,if my board use in far away gig then it always shake cause by vehicle and rough road.. is it possible that the IC on my board may be affected? what part of my keyboard will be affected...
There are numerous ICs, as well as other components and connections, that may have been affected by rough handling, shaking, bumping and banging of the keyboard.
As the other person stated, if it’s still under warranty, take it to the appropriate repair person.
If it's not covered and you lack experience in similar repairs, take it to a qualified tech.
If you are inclined to do this yourself; There are a multitude of DIFFERENT SIZE screws that you must remove to open the keyboard. PAY CLOSE ATTENTION to which goes where. Take pictures and make notes. And BE VERY CAREFUL OPENING THE CASE. If I remember correctly, there a couple of short cables connecting the top and bottom halves. Proceed slowly.
You should be able to, at the very least, do a visual inspection yourself. Look for loose cable connections and dislocated components. More than likely, that is the cause of your problem. If plugging something back in doesn't remedy, and you are inexperienced, take it to a qualified tech.
If and when you fix the instrument, I suggest that you transport the keyboard in a well-padded flight case. Good luck.