Drummerboy Posted December 1, 2014 Share Posted December 1, 2014 Hello, I just received an Atari 8Bit Lot, including a Atari 800XL. Testing the machine, all seems are working fine, but when i load some games, like International Karate (take a look to the video), the game background is flickering. With games like Pole Position, Moon Patrol or Berzerk, the main character not appears on the screen or blinking on the screen. The Memory Self Test pass ok, but down on the screen where say : "Reset or Help to Exit", this letter are flickering. I tested with other PSU, and the same problem. I am using a Composite Video cable on CRT TV. So, someone know what are happening?. If you know, please let me know. Comments, suggests are welcome. Thanks! https://www.youtube.com/watch?v=xwPWEYKJS7w Quote Link to comment Share on other sites More sharing options...
Caterpiggle Posted December 1, 2014 Share Posted December 1, 2014 Sorry , your video stated, "This is private", not for public here ? 1 Quote Link to comment Share on other sites More sharing options...
Drummerboy Posted December 1, 2014 Author Share Posted December 1, 2014 Sorry , your video stated, "This is private", not for public here ? Sorry, you are right. Now is public. Thanks for Notice! Quote Link to comment Share on other sites More sharing options...
+bob1200xl Posted December 1, 2014 Share Posted December 1, 2014 Looks like a GTIA problem to me. Do you have any spare chips that you know are good? (test them in another machine) Bob Quote Link to comment Share on other sites More sharing options...
Drummerboy Posted December 2, 2014 Author Share Posted December 2, 2014 Well, exchanged the GTIA with other Atari 600XL i have and work, but in strange way, i put the 800XL GTIA, and work fine in the 600XL. Anyway, the thing is now is working in order. Thanks Bob1200xl. Quote Link to comment Share on other sites More sharing options...
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