I wish I could call myself a newbie (someday). Looks like the windows are not covered so the chips may have loss their programming (Ian was going there I believe). Missing chips perhaps at J1 and/or I2??? Looking at the last photo there may be some issues in the area of F4 - H4.
All I know is what I learn here and John's videos. No games yet
So my advice is not even worth 2 cents
Good luck - perhaps you can find someone in the area to work with you to troubleshoot it. Good luck!