Strange problem with my Intellivision:
It does not work any Mattel game - it comes the start screen, which I can not get out then.
It does not matter whether I use the original cartridge or start the game via LTO! Flash.
Third party games work .....
I first suspected the controllers, then cleaned them (but the buttons were already in the LTO! Flash menu before),
so it can not be due to those I think .....
Does anyone have an idea here? Maybe one of the ROM chips?