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Psychob0b1977

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Posts posted by Psychob0b1977


  1. The grey power supplies are notoriously unreliable. Not sure if they're rebuildable. Mine's broken also, but the console works fine with my black 2600 power supply. I've kept the grey one for completeness' sake - I am pretty sure my system's complete except for the box inserts.

     

    This has gotta be the oldest thread still going that I participated in at the beginning - 2005! I still have that Sears heavy sixer; I'm sure I've had it longer than the original owner at this point.

    I've heard that the grey ones are unreliable. It did work at first, but it died the same day I bought it. I have also kept it for completeness. I wish I could find a box for mine though.

     

    I have a Sears heavy six that I used for parts for this one. The Sears one had a broken switch, and a previous owner messed up the motherboard trying to repair the power jack. It still works but it's beat up.


  2. Thanks, I'll check it out.

     

    The rf cable on this one is actually in great shape, I'm not sure what that is, but it's not rust. This system has the best picture of all my Atari systems.

     

    I paid $50 for mine and it came with 4 joysticks, 2 cx10s and 2 cx40s. It came with the original grey power supply, but it stopped working... It came with at least 30 games, many of them still in the box.

     

    The guy I bought it off of had gotten it for Christmas in 1977 and taken very good care of it. He said that he thought there was no way he was going to get one that year because they were very expensive and his father had died earlier in the year. He thought that his mother couldn't afford it. But he was quite surprised on Christmas morning!

     

    I love the fact that along with this console I also got a great story!

     

     

    Here it is after cleaning it up and re painting the bezel. I also swapped the game select switch from a beat up unit because the spring broke in the original switch.

     

    post-49244-0-34755500-1482195517_thumb.jpg

    • Like 1

  3. I have a few Atari systems. Right now I'm doing a tear down on what I believe is a Sunnyvale heavy six.

     

    Serial number - 34555j

    There is a piece of paper taped to the shield on the inside. It is type written and says 99 36200044. #

    There id's another piece of paper on the motherboard itself, that is also type written it says 99 13000123. #

     

    The motherboard itself has copyright 1977 right under the cartridge slot near the ribbon cable. And on the bottom it says it's revision 8

     

    I should also add that I purchased this from the original owner who got it for Christmas in 1977.

     

    post-49244-0-71433400-1482168136_thumb.jpgpost-49244-0-07572100-1482168169_thumb.jpgpost-49244-0-00049000-1482168206_thumb.jpgpost-49244-0-83179800-1482169159_thumb.jpgpost-49244-0-16490000-1482169223_thumb.jpg

    • Like 1

  4. Alright, we have discovered why our current version of the Melody board is having issues with Light and Heavy Sixers. While Fred Quimby was researching this issue, he looked at the Heavy Sixer schematics and found a circuit that does not exist on any later Atari systems (four-switcher, Jr., 7800), and doesn't really seem to serve a useful purpose in the Sixers. This circuit also seems to cause problems with other games as well--for instance, River Raid II.

     

    While we continue to work on a solution that fixes this issue from the cartridge side of things, there is a very easy mod you can do to your Light or Heavy Sixer that will fix these compatibility issues. After doing this mod to two different Light Sixers, every game I threw at the system ran fine, including River Raid II. iesposta modified his Heavy Sixer with the same results.

     

    Here's the back of the circuit board:

     

    sixer_compatibility_mod.jpg

     

    Simply bridge the two circled solder joints with a wire and you'll bypass this circuit. Very easy to do mod if you have any soldering experience.

     

    Here's an image after the mod has been performed:

     

    sixer_compatibility_mod_finished.jpg

     

    Example of River Raid II before and after:

     

    river_raid_2_fail.jpg

     

    river_raid_2_good.jpg

     

    And Stay Frosty 2:

     

    light_sixer_frosty.jpg

     

    If anyone performs this mod, would love to hear your results.

     

    ..Al

     

    sorry to revive an old thread... I had a question for anyone who has done this modification, it has been quite a while now, has it caused any negative side effects or killed your console? i was thinking of doing it so i can play river raid 2 on my heavy 6, but i dont want to harm it in any way.

     

    Thanks!

    • Like 1

  5. I have a copy of river raid 2 for the 2600 that works great in my 7800, but for some reason it won't work in any of my 2600 systems...

     

    My go to system for 2600 games is my Sunnyvale heavy six, it has the best color and it's the least fuzzy. But this game just won't work in it.

     

    When I try to play it, it works for about 30 seconds then it starts to scramble and eventually the screen goes grey and the sound loops. It does this even if I just turn it on and let it sit. I thought it was dirty do I cleaned the cart and tried again with the same result, so I tried cleaning the console, and still no luck. I tried 2 other 2600 systems with the same result. As a last resort I tried it in my 7800. And to my surprise it works flawlessly. Although the 7800s colors are more washed out and fuzzy than my 2600.

     

    Any ideas on why this is happening and what I can do to fix it? This is the first 2600 game that I've ever had trouble with so I'm kind of at a loss for what to try.

     

    Any help would be greatly appreciated!

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