Problem with Yamaha DTXplorer electronic drumset!!?

So I purchased a Yamaha DTXplorer electronic drumset in February for my birthday and absolutely LOVED it! I played it almost every day.. But around March, I turned it on one day and there was no power. Nothing happened. I tried different plugs, searched google, and nothing helped! I never mis treated it at all, I left it sitting in the same place always plugged in (but not always on). So I have no idea why it won't work. Help? I miss playing it :/