S.BAZ Posted June 7, 2019 Share Posted June 7, 2019 This seems to be an easy problem, but I'm kinda clueless here. This gameworked fine for a year it so, then suddenly it just displays this screen of zeros. Anybody know what'sgoung on here? It's a Do! Run Run arcade machine. Thanks for any infos! Quote Link to comment Share on other sites More sharing options...
ChildOfCv Posted June 7, 2019 Share Posted June 7, 2019 Well first, of all, the service manual is here: https://www.arcade-museum.com/manuals-videogames/D/DoRunRun.pdf It mentions running the self-test by holding down the player 1 start button as you turn it on. 1 Quote Link to comment Share on other sites More sharing options...
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