lucifershalo Posted May 17, 2013 Share Posted May 17, 2013 Hello, After somemonths I dug out my Ntsc 7800 and began to play games on my Samsung flat screen When I tried Space Duel, Asteroids Dlx and Robotron, i have the Atari intro screen then nothing....all black I have a lot more carts and homebrews But only have that problem with those 3 games Any idea? Thanks Quote Link to comment Share on other sites More sharing options...
Atarifever Posted May 17, 2013 Share Posted May 17, 2013 I don't know about Robotron, but several of my homebrews (Space Duel and PacMan Collection in particular) give me a black screen when I first start up. It goes away after I have the 7800 on for five minutes or so. It's like the system has to "warm up" before it recognizes them. Thus, when I want to play those games I have always play something else for a little while first. It isn't every homebrew and not even every one from the same programmer (Bob did Scramble and Moon Cresta and those work without warm up). Quote Link to comment Share on other sites More sharing options...
lucifershalo Posted May 17, 2013 Author Share Posted May 17, 2013 I played them atfer playing other ones for more than 30 min .... Quote Link to comment Share on other sites More sharing options...
Trebor Posted May 17, 2013 Share Posted May 17, 2013 Are you sure it's a problem with those specific games or just an issue with the modern/flat screen TV not always recognizing or registering the video feed from the 7800? I have experienced various 'no input' messages at times with a variety of games (Title/Game does not seem to be a factor, it is just random), on LCD/LED/Plasma televisions. Besides signal recognition issues, colors and clarity are usually off to an extent, if not completely wrong on "modern" displays. Same 7800 systems work perfectly fine on CRT's. Some captures color discrepancy examples here: http://atariage.com/...25#entry2699592 Quote Link to comment Share on other sites More sharing options...
lucifershalo Posted May 17, 2013 Author Share Posted May 17, 2013 onlythose games dont work and always after the atari intro screens will check on older Tv Quote Link to comment Share on other sites More sharing options...
Trebor Posted May 17, 2013 Share Posted May 17, 2013 onlythose games dont work and always after the atari intro screens will check on older Tv If you're getting the intro/logo screen, the video feed shouldn't be the issue then. ApolloBoy posted about a couple of games (Different titles from yours) that crash one of his 7800. A slightly different problem than yours, but still "crash" related. Makes me wonder if some form of bit rot might have/is settling in for these systems and/or games. Quote Link to comment Share on other sites More sharing options...
Stun Runner 87 Posted May 19, 2013 Share Posted May 19, 2013 Never had a problem with any of my carts on my 70 inch flatsscreen ever....other than the colors are too dark on pacmancollection............sounds like the op just has a bad console and need to buy a new one............ Quote Link to comment Share on other sites More sharing options...
Stun Runner 87 Posted May 19, 2013 Share Posted May 19, 2013 Or new carts.......... Quote Link to comment Share on other sites More sharing options...
Lumpbucket Posted May 19, 2013 Share Posted May 19, 2013 Try pretending its a NES and blowing into the cart. That fixed some blank screen issues for me recently on my 7800. Quote Link to comment Share on other sites More sharing options...
ApolloBoy Posted May 19, 2013 Share Posted May 19, 2013 ApolloBoy posted about a couple of games (Different titles from yours) that crash one of his 7800. For some reason my 7800's stopped doing that recently, Ballblazer and Food Fight now work fine on my system. I do have a very strange problem on my brother's AV modded system though (which used to be mine) where Ballblazer randomly crashes. Quote Link to comment Share on other sites More sharing options...
Atariboy Posted May 19, 2013 Share Posted May 19, 2013 I would imagine that they're running at a slightly different resolution than your other cartridges and your HDTV's scaling chip isn't cooperating. Is the audio coming through? Quote Link to comment Share on other sites More sharing options...
Kulp Posted May 19, 2013 Share Posted May 19, 2013 (edited) I have robotron for 7800 and it works fine on my very modern tv. I would say you just need to clean your cartridges. try a q-tip dipped in rubbing alcohol, rub each contact on your cartridge hard, up and down on each one (then continue and do the same for the reverse side). This will probably make your games work like new. let me know if it worked. Edited May 19, 2013 by Kulp Quote Link to comment Share on other sites More sharing options...
Stun Runner 87 Posted May 19, 2013 Share Posted May 19, 2013 Get cotton swabs and alcohol and clean off the board........put cart in console while still wet.......it will clean console too while you play.....then drink the remaining bottle of alcohol and have fun....... I'm not responsible if it don't work and blows your console up. Quote Link to comment Share on other sites More sharing options...
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