I got the same issue now with my robo war just sort of started, gone thru the basics, re pin the connectors clean the fingers on the board, check power, nothing really jumps out and says it me I am broken, I am leaning toward s a chip on the mpu but I am not talented enough to know how to find it.

gary

please help kind at a stand still, heres a small up date, what has quit working is the # 3 drop target and the rh roll overs and the top 4 rollover. now the fun part when the game has been off all night I first turned it on it worked like a dream no problems for about a minute or so then it slowly started to fail but just the items noted above obviously heat related but where do you start.
thx gary

ok great update I got it all working, turned out to be a connection issue on the j6 edge connector the fingers on the board needed to be retinned all is great or was. now I did a dumb thing I put one of the game proms in the wrong way and toasted it what a dummy I am, anyway where can I get a set of game proms for the robo war game. your help would be appreciated