Each does Nothing the same.
These could be Sears Tele-Games.
These all have some issue.
The 1st button has a issue.
No Video issues.
The Metal is Very Worn or Rusted.
The are Defective Donor Board.
These are Sixer different Models and Rev.
These are a PARTS item.I pull add ship these at random from what I have.
See my YouTube of the same name. testing all these today 3/9/2024.
AS-IS AS-Pictured.