Casio Keyboard not working

[Naseeb]

Hello All, I have a Casio Ctk-4000 keyboard but suddenly it has stopped working. What happens is when i plug in my adapter or battery and when i power on it shows light and again runs out like blinking. So can anyone help me out with this please,

 

[happyrat1]

First massage all the buttons and keys to check if any buttons are stuck and interfering with the POST process.

If that has no result then you will have to take it in for service in your country.

Check the support link for your country to find an authorized service center.

http://www.casio.com/

This is not a simple DIY fix.

Gary