Just got 2 ROLLER DISCOs ... got one mostly working ... other one won't start a game and score displays flash from "000,000" to "EE" (but the top of the E is missing) ... is this an "error" message ... ordering an Owners Manual and stuff tomorrow ... but have tomorrow off and was hoping to work on it ... P.S. Both sets of boards were suppose to be working ... I took the MPU out of the unworking game and put it in the working game > and it shows same "code" in the game that was working ... Also, is likely that unworking game fried something on MPU ... and if so, what should I check ? P.S.S. After I tried starting bad game > I noticed the power cord wasn't grounded so I replaced power cord but still not working ... THANK YOU !!!

Guy I got the games from is a whiz at boards ... he checked boards (said they all OK) ... he did ground mods ... Zeros aren't "strobing" exactly (scores displays light up with "000,000" then a second or two later > light up with the "EE" thing ... then back to "000,000" ... more flashing ... guess that could be called strobing ? The dilemma is >> The game that is NOT working is in better condition ... I am going to keep one and sell the other ... I'm hesitant to put the board from the working game into the game that doesn't work, because afraid it might screw up the board ...? ... Do you think that is a likely possibility ? OR is that unlikely??? Ideally, would like to get both working but limited time and knowledge of Solid States ....

plowpusher > AHAHA ... that funny ! are System 1 games that bad ?

@mbaumie > please read previous post ... and guy I got them from put a jumper on MPU to disable slam switches ... Thanks for thinking of that tho !