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Found 20 results

  1. Hello. I recently obtained an Atari 400 labelled as "working". Upon setting everything up, it will only display a green screen. Every time I turn it on, it only displays a green screen. Where should I go from here? What are the most likely causes that I should investigate? Some more info I forgot to include: 1. A green screen is displayed 100% of the time so far. Never a black screen / anything else like some other posts I have seen. 2. I have tried inserting various cartridges, however something is wrong as carts do not click in all the way on this machine (tested and work fine on my other 400). So, I am not sure how to test other functions of the machine using carts until I can figure out this problem. 3. I have used the power supply with another Atari 400 which works fine.
  2. Ok guys, I’m stuck. I’m only 16 so I don’t reeeeeeeally know what I’m doing, but I need your help! Atariage, I’ve been scammed!! DUN DUN DUUUUUUUUN!! I bought a “working” atari 400 off of OfferUp whose only problem was that it had a cut video cable (Which I replaced with one I pulled from a broken 2600) and no PSU (which I had bought before the system arrived). I, being the idiot I am, DIDN’T test the system before starting my cleaning/retrobrite process (pictures below ;) ). After that week of school I threw the system back together aaaaaaaand... black screen... :( I’ve tried Everything I can think of, I reseated all the chips on the whole computer (cleaning the pins and the sockets as I did), cleaned the the ram and cpu board connectors, started it up with a star raiders cartridge, made sure everything was grounded properly, deoxidized the power jack, cleaned the channel selector, tried multiple tv’s (both new and old), and STILL I get that black screen... WHAT SHOULD I DO?! Any help would be greatly appreciated!
  3. Hello everyone, I bought my Atari 400 in February 1983. I thought it had been thrown out many years ago, but I recently found it in my mother's cupboards! I tried powering it up, but it won't work. I tried a known-good 16K RAM card from my old Atari 800 and Star Raiders plays fine. I remember spending every cent on upgrading the RAM from 16K to 48K back in '83, which worked fine up until I last used it, which was probably around 1989/90. The odd thing is that the motherboard needed no mod wires to make it work. I've looked at many threads on here and on other sites and all upgrade kits seem to have needed the 4 mod wires from the RAM connector to the ROM cartridge connector. My board is a 'Mapsoft' one, so I'm wondering if anyone else has seen one, and perhaps they can advise me as to how to go about troubleshooting faults on it. I've socketed every IC, and have replaced all 74LSxxx ICs, followed by the RAM ICs themselves. I substituted the Mostek 4564-20 ones for 4164-15 chips, which I'm told will work. The originals were 200mS, but the new ones are 150mS. All chips replaced are known-good and I've tried more than one of each just in case. I even tried the 4-wire mod in case I was going mad! Any help would be greatly appreciated. I have an oscillocope and a multimeter! Many thanks, Dave.
  4. I was wondering if anyone could please help me out. I was cleaning out my Dad's basement the other day and came across this atari 400 cartridge. Mr. Do!'s Castle I have done some research on it and i know it was never suppose to be released but it was released in Canada for awhile. This is not that cartridge though I am wondering if anyone has ever seen this before Any input would be greatly appreciated
  5. I'm working on getting Atari 8-Bit set up in RetroPie using the Atari800 emulator and most everything seems to be working just fine except for this: My WASD keys don't deliver any input at all. I've tried multiple keyboards, checked to make sure they aren't currently bound to joystick controls in the emulator and I assume there is somewhere in the emulator which is binding them to "movement" but I can't seem to find it. So right now, any game that requires pressing "S" to start, like the Scott Adams adventure games, I can't do anything with because my "S" key doesn't work. I've scoured Google looking for solution but it seems there aren't many people who have set up Atari800 on the RetroPie because it most certainly isn't the most user friendly of emulators. Anyone else run into this same issue and found a solution? Thank you in advance for your help!
  6. I picked up this cart and I didn't recall seeing it before, and I'm betting it is on every cart, but it's neat anyway. Kinda makes me want to put paper over it and scribble out the pattern. ian
  7. Hey, well here it is. i picked up an atari 400 with a 401, 1050, and a 1025 all for $40 at a local store. heres muh problem it works so far but i cant use it lol. the keyboard dose not work the system reset and break keys do. well i looked into it and well the keyboard does work i tested it with my multimeter cant say all keys do but more then the 2 that work when its fired up. so the next thing i did was look into it more found that the pokey chip did most of the workins on the kb. well i figured it was bad so i pulled out the 5200 i had layin around and swapped the chip........ still no go does anyone have any ideas on what else it could be??? i would love to get this thing working again ive always wanted an atari computer now i have one but it needs some TLC! Thanks
  8. Atari 400 with power supply, works great 50$ Plus shipping (OBO). 20201216_171901.mp4
  9. Hi everyone. I sold this Atari 400 with 410 recorder on eBay with no only a power cable, no plug attached. The buyer purchased an additionally required cable to hook up to a screen and when he turned on this appears on the screen. The eBayer 100% knows what they are doing and said if I partially refund then he will get it fixed. He only paid £50 for it. Is this a case of cleaning the inside with some alcohol and putting it back together? System hasn’t been used in...25 years. Many thanks for your help.
  10. ======================== EDIT: These items are no longer available. ======================== I recently came into possession of a decent sized collection of Atari gear. I grew up playing games and computing on similar Atari hardware so I'm somewhat familiar with the gear. Despite most of the gear being in excellent condition, it was destined for a trip to the electronics recycler. Recognizing the historical significance of the gear, I snatched it up to ensure that it can live on. I'm looking to sell and redistribute the gear to the community of enthusiasts here to ensure that it can be preserved and enjoyed for many more years. I spent many hours cataloging, testing hardware, photographing everything, and uploading photos. I've done my best to test and verify the functionality of most of the gear in this listing. You can see a list of everything that I have here: https://bit.ly/2qeRtAA Each item includes link to an imgur.com posting with photos. Most items also include a note about the condition of the item. Sorry, it's not the most convenient way to view everything in one shot but it works for me. I didn't include prices on my spreadsheet as I don't really have the time to determine the value of each item. In many ways, the value is really determined by the community here anyway. I would simply ask, if you would like to make an offer for anything on the list, make it a reasonable offer. Also, keep in mind there are shipping costs. Some of the larger items may incur significant shipping costs. I can certainly offer local pickup for anyone in my area. I'm located in south central Pennsylvania (York, PA area). https://goo.gl/maps/bWMy8WTxebmbAu54A Contact me via email or PM if you're interested.
  11. I am selling my Atari 400 computer and Atari 410 Cassette Writer. They can be seen here: http://www.ebay.com/itm/Atari-400-Vintage-Computer-and-410-Cassette-Read-Writer-/221955724720?hash=item33ad9795b0:g:ITMAAOSwNphWXLvH -ArdsleyTank
  12. Is it considered easy or difficult to reprogram games for the Atari 400 or 800 as to run with professional quality on a 5200 system? Are there big differences in 1) hardware 2) program language? I’m very ‘layman’ as to programming and hardware. If its possible, please, describe or explain in quite straightforward or common terminology.
  13. There is a small hole in the rear of the case other than that it is perfect. The mem upgrade makes it a new machine. Comes with power supply. $100 obo. Thanks, 400_mem.mp4
  14. Hello everyone! I am a well established member over on the Nintendoage forum, but recently I was doing some yardsaling and came across some Atari stuff I dont really know much about! I would appreciate any help you could give me mainly on the Scott Adams Adventure serries. Thanks in advance! There was an elderly gentleman that had a few tools out for his sale, but out of habit I asked him if he had any old videogames he wanted to get rid of. He says, " oh you mean like atari?"... "come look at this". He then showed me a rack in his garage full of original atari stuff that he had back in the day. He had a price in mind and I was very happy to get it. There was more than what I have in the pics, but this is some of the highlights. I started look a lot of this up, and some of it is pretty straight forward. However, there are some specific games I can't find any information on. Any additional info is super helpful! These ones to me seemed the rarest when looking up but I really dont know anything about them! These are Scott Adams Adventure series... all have the tapes in them. #5,9,10,11,12.... #2 recently sold for $200 recently, but I have no idea what these are worth. All of them have the tapes present. I would appreciate any value guidance as I plan on selling a decent amount of this as it isn't my main focus of collecting. Also just a little about me. I am a huge retro collector in general, but I have mainly focused on videogame signs/displays. ( I do have a 1979 asteroids sitdown cocktail table and some original ads as well so im not just purely nintendo!)... I also have my 2600 I will bust out occasionally. Thank everyone in advance and excited to be here!
  15. Recently I got an old Atari 400 in its original packaging off ebay. Compared to the prices over here in Germany, you guys over there, at the other side of the big pont, really can feel lucky. For me it was a bargain and a good colleague of mine was so nice to bring it over. When I opened the box I found this letter/note from the shop, where it was bought, back in the days. Thought, I share it with you... perhaps someone knows that store. Made my day...
  16. Okay this is my first post on atariage so i dont exactly know how things work here... however i needed to sign up to get info and help on this atari find of mine. I got a large lot from a programmer and in it there was a game called "Poussinet" and lots of stuff about it. i havent been able to find practically any information on it besides the programmers of it (Bruno Fontain and Denis somthing) that it was produced by CRN and that it was released in 1985. if anyone can help me please post and i may share a bit more details or show pics of what i have if anyone is interested.
  17. I was recently working on my Atari 400 with the case off, trying to fix some issues. When I tested the machine, without thinking, I used a screwdriver to close the interlock switch for the cartridge door. In the process the screwdriver made contact with the heatsink for the voltage regulator. It made some strange noises and I smelled the faintest trace of smoke. The screwdriver was not in contact with the heatsink for any more than one second, and the Atari appears to be in fully working condition after reassembly. Is it possible that I could have damaged something, and do I need to replace the internal power board?
  18. I'm looking for assistance in repairing an Atari 400. It has an intermittent issue with graphics. Sometimes it starts up fine and everything looks normal. When this happens the graphics and colors are fine until the computer is powered off. Other times the colors are off on startup, for instance sometimes when playing Donkey Kong from a cartridge the graphics on the title screen are green. Other times it starts with a white background. The only way to resolve this is to power cycle. Other times sprites are missing. For instance when playing Pac-Man from a cartridge Pac-Man and the ghosts are missing. You can still control the invisible Pac-Man by following the dots as they disappear. You will never die from hitting a ghost. Sometimes when playing Donkey Kong the Jumpman character is missing and just a solid vertical line runs down the screen at the position he should be in. Again only power cycling will resolve these issues. Any ideas what can cause this? Could it be the ANTIC? Any help would be appreciated. Nick
  19. Hello everyone, its been a while since ive had a good gaming project and ive finally decided on what to do. Build my own arcade cabinet and use a vintage computer/gaming console inside it. Im a good wood worker, so building the cabinet is no issue. I need to decide between two good working motherboards that i have. An atari 400 and a ti-99/4a. Both have a good amount of games available, so its hard to choose between them. Anyone see any pros and cons of one versus the other? oh and here is an arcade machine on youtube that is using a 400 as its board. just ill be hiding my board inside of the cabinet.
  20. Looking for a working colecovision....can buy it or I have a nice Atari 400 computer with games and a wico trackball to trade. Thanks
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