i have 2 keyboards one casio ctk-80 and a saishio pro synth neither of them will turn on iv tried sevral diffirent addaptors but nothing can any help be given?
Andy,
You've got to see the back of the keyboard to find our the voltage to be applied. Then you have to see the polarity of the adaptor to be used and then you got to make sure the current rating of the adaptor is appropriate.