AtariBrian Posted July 2, 2017 Share Posted July 2, 2017 I am just curious what people think is the issue here . I assume it is the video chip ? This is my friends av modded Colecovision . Tried two different power supplies so that is not the issue . Quote Link to comment Share on other sites More sharing options...
Pixelboy Posted July 2, 2017 Share Posted July 2, 2017 I've seen graphic glitches like this in the past where the culprit was the power switch. Not sure if that's the case here though. Quote Link to comment Share on other sites More sharing options...
chart45 Posted July 2, 2017 Share Posted July 2, 2017 (edited) seems to be a bad vram chip..dont put game in turn the coleco on and compare to repaire manual to find the bad vram chip... http://www.colecovisionzone.com/photos/coleco/colecovision%20tech8.pdf Edited July 2, 2017 by chart45 Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted July 2, 2017 Share Posted July 2, 2017 Very likely to be a failing ram chip. Very common on the CV. I would suggest doing the +5 vram upgrade, but that isn't a mod for the delicate of heart.https://console5.com/store/colecovision-5v-memory-upgrade-kit.html Quote Link to comment Share on other sites More sharing options...
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