Rush 2049 with Sharp Image 727r-ds plays blind. Where do I start?

[bobbyb13]

Was running ok and then relocated to it's permanent home- after a bit of mildly rough handling on the way up the stairs- to the second floor.

First boot up it ran fine for 10 minutes and then started to get a minor wave passing through the image occasionally.
Second boot a few days afterward and it played blind.

I am still nearly a total noob at monitors.

Is there a diagnostic flow chart appropriate to my situation to try to sort out what is up?
If it is over my head (or maybe just too time consuming for my life currently) are there any recommendations on someone to send it to for repair?

Any guidance is greatly appreciated!

Bobby