Cinema Display Questions

Hi

I transported my Cinema Display HD. It was working perfectly. I transported it gently to a location without any trauma, bumps or shocks. When I arrived it wouldn't light up and gave me a short-long short blink. BUT although that is supposed to be a power supply, the same power brick worked perfectly on a 2nd monitor. Is there any thing on these monitors that might shake loose?

Is there any way to open it up to check?.

I have a third monitor with 2 bad pixel lines. If the first one can't be fixed, Is it easy to switch out the screen from one to the other?

Thanks

Enio