Ogien Posted October 16, 2013 Share Posted October 16, 2013 I recently got a Atari 800XL from a local classifieds but I am having issues with it. The power light comes on however the display not working, there are some funny colors and lines (image attached). When I type on the keyboard there is no sound. When I insert a cartridge there is no sound from the game starting screen. Basically it does not just look like the display is garbled its almost like the computer is also not responding. I opened the Atari to see if there is something obvious like a burned cap, but I can't see anything. I took high rez photos of the board on both sides. Can you guys please have a look and try to point me in the right direction. Thank you for all your help, please help me save this Atari, Quote Link to comment Share on other sites More sharing options...
Kyle22 Posted October 16, 2013 Share Posted October 16, 2013 Check your power supply. You may have the 'Ingot' style supply that can damage your computer, Part # C061982. You may have a bad filter capacitor in your P/S. Try a different, properly regulated 5 volt DC supply 1.5A, or so. -K Quote Link to comment Share on other sites More sharing options...
Ogien Posted October 16, 2013 Author Share Posted October 16, 2013 Check your power supply. You may have the 'Ingot' style supply that can damage your computer, Part # C061982. You may have a bad filter capacitor in your P/S. Try a different, properly regulated 5 volt DC supply 1.5A, or so. -K Unfortunately I do not have another power supply, but i can check it with a multi-meter. Quote Link to comment Share on other sites More sharing options...
Ogien Posted October 16, 2013 Author Share Posted October 16, 2013 I am getting about 6V from pins 6, 1, 4 but for some reason it is -6V. I may just not know how to use a multi meter though. http://www.mixinc.net/atari/pinouts/powerxle.htm Quote Link to comment Share on other sites More sharing options...
ApolloBoy Posted October 16, 2013 Share Posted October 16, 2013 6V is too high, toss that PSU out. Quote Link to comment Share on other sites More sharing options...
Kyle22 Posted October 16, 2013 Share Posted October 16, 2013 6V is too high, toss that PSU out. *RIGHT NOW* don't ever plug that one in again, it can and will fry your computer! -K Quote Link to comment Share on other sites More sharing options...
Ogien Posted October 16, 2013 Author Share Posted October 16, 2013 *RIGHT NOW* don't ever plug that one in again, it can and will fry your computer! -K Got it, thanks Do you think this is why the screen is messed up? I don't mind ordering another PSU but I don't want to invest if the Atari if it is not working in the first place. Quote Link to comment Share on other sites More sharing options...
Kyle22 Posted October 17, 2013 Share Posted October 17, 2013 (edited) Hopefully, its not fried. It could be, but there is no way of knowing. Try a new P/S first. It may work. If you have a bad GTIA or ANTIC, for example, they are not that expensive to replace. The overvoltage problem commonly blows RAM chips, which are cheap. You may have a chance because you have some video, not just a blank screen. You have a GOOD chance of having socketed chips in your 800XL, and Best Electronics has any item you may need in stock. http://www.best-electronics-ca.com/ M-F 1:30-5 PM PST 408 278-1070 it *IS* worth fixing! Good luck -K Edited October 17, 2013 by Kyle22 Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.