Dear members, can anybody please help. I have a performance in three days so it's difficult to go to service center right now. My keyboard is getting switched off suddenly , within 4/5 seconds (making a mild spark sound). I was using the keyboard(through adapter) when suddenly power went off (the batteries were inside) and the keyboard switched off suddenly (with a mild/low spark sound). Now it's not turning on with the ac adapter and when I put in the batteries it's getting automatically switched off in 4/5 seconds. Please help. I'm in trouble, tensed. Thanks in advance.