If your MD breaks down to fit in the carry on as mine does, you should have no problem. I never have and when I asked the same question, many people told me the same thing I'm telling you. They might want you to turn it on so leave batteries in it.
I've taken my MD around as carry on, but I won't risk it in check in. Not an expensive MD like yours or mine. Others say not a problem checking your MD. Can't take the chance in my mind. In the cabin with me, I know it will arrive with me. An MD vacation without a MD is a real drag. I don't check mine ever.
Hope that helps.
Best wishes,