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shear_xear

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Everything posted by shear_xear

  1. Yeah, the boot rainbow isn’t bad at all, nothing like the ColecoVision’s long wait at startup. I suppose having Asteroids boot up when there is no cart at least lets you know the console is functioning correctly rather than the black, etc. you get otherwise. At least it is pretty easy overall to add. Thanks!
  2. Okay. Thanks for helping clear all that up. I think that some PAL games are cheaper than the NTSC versions (I bought a PAL Mean 18 for $20 when the NTSC was $40), so maybe people want to try games on real hardware without some of the cost? Either way, I appreciate the info!
  3. Okay. It seems like Best is overselling the abilities of the upgraded chip a little in their description then. It implies that more PAL games that would not normally play would work with the upgrade. Here is what they say: “This Atari Euro 7800 upgrade chip will also allow you to play more of the Atari 7800 PAL Games that will not normally / properly run on the NTSC / US version Atari 7800 consoles. Some Atari 7800 PAL Games require a PAL 7800 MARIA chip and will not run on a US 7800 motherboard modified with the Best 7800 OS EURO upgrade.” Are there games that normally load, but display incorrectly and this allows those games to work? Thanks!
  4. I then question what the point of the kit is. Skipping the bios screen to have Asteroids autoload is okay, but not really needed. Best says in their description that some 7800 games will require a PAL Maria chip to function correctly, but it also says that all 2600 games will load. Only a couple of the eight or so PAL 2600 games I tried (on a Harmony cart) worked correctly without the same offset image displaced. Is their description just meaning that the local region 2600 games will all load correctly, for example Robot Tanks or Activision Decathlon that have issues with some boards? Has anyone ever created a list of 7800 PAL games (or vice versa) that do load correctly with the upgrade? Again, thanks a lot!
  5. Hi everyone! So I went ahead and installed one of Best’s OS BIOS upgrade PAL/NTSC mod kits, and while NTSC games load perfectly, as does Asteroids when it autoloads, the PAL cart I have (Meltdown) loads, but the screen is about an inch and a half or two inches too low on the screen. The 2600 game Asterix I loaded on my Harmony cart does the same. This is all being output through composite via the UAV mod, but it did the same when I was using the original RF. Anyone ever do this mod and get good results? Thanks!
  6. Hi everyone, I have a question about the Emerson Arcadia 2001 left controller. The one I have works great, moving in all directions perfectly, but when I’m not pushing the joystick in any direction the character on screen automatically moves to the right. Is this supposed to happen? I would think not, but with it being such an early console sometimes I wonder what they were thinking. Thanks!!
  7. Thanks, but I found these no problem. The ones that I am looking for are closer to comic book bag material. Thanks!
  8. Hi everyone! I have been searching for these soft plastic sleeves for Atari game carts. They have an adhesive seal and are of a similar material to the soft baseball card protectors. I have received several games I’ve purchased online with these, but can’t seem to find the source. Any idea where they can be found? Thanks!!
  9. I think it’s the cartridges themselves. I can’t imagine Atari doing more than just sticking a new label on the retail version of Pole Position II. Everything else worked as it should, including a couple homebrews. No issues whatsoever.
  10. Ok, so is there an actual difference between the white label pack in version of Pole Position II and the retail version with the picture of the cars? I tested several new games, and none exhibited the flickering problem I had with Pole Position II and Ballblazer. I think the problem is with these specific game cartridges.
  11. Well the same problem occurred with the third UAV board. I know I have installed the UAV on three 7800’s with the expansion port, but these are the first two that were fully socketed.
  12. The two I have used while troubleshooting I received about two weeks ago. I did just get a few more yesterday, but they could be from the same batch as well. I will try one of them out just to be sure. I do know that the UAV I used to check if the problem carried over to a second board worked perfectly with a later revision board, so there is definitely something about this revision that is causing this.
  13. Well I swapped in some original 7800 switches and it’s still there. The only other thing I can think of (other than it being the version of 7800 board) is that it is the batch of UAV? There definitely wasn’t any issue through the RF.
  14. Well.... I received another fully socketed Rev A 7800 yesterday and tested it out. There was no flickering through the RF output and everything looked great. Then I swapped in the new board and got the same flickering problem. I had recapped and replaced the PR and the Power and Reset switches. I went back and reinstalled the original caps and PR and still have the flicker. Could it be the switches causing this, because otherwise there seems to be something in this revision that doesn’t like the UAV. I really don’t want to pull those new switches off if there is no way that’s the problem. Any thoughts?? Thanks!
  15. Well, the fact that the same UAV kit worked without problems on a different board, and a second UAV kit had the same issue with the problem board and also gave a perfect picture on a second board, it seems unlikely it is the mod kit itself, unless this specific version of the board is just incompatible with the UAV kit.
  16. It did have the RF output before the mod, but that was removed during modding. I am not sure if this happened before the mod as I only loaded the game up to the second screen briefly to verify it worked. I would guess that it did have the problem as the UAV takes the image from the same source (I think). The RF image is so muddy in comparison I would have needed to really pay attention to the image displayed to notice it (wish I had).
  17. Unfortunately this happens when using composite too. Actually it’s worse when the composite is being used. I have removed and then replaced all of the UAV leads as well and had the same results.
  18. I actually have tried two power supplies and had the same results. I think it is somehow power related as well, but finding the source of the problem is becoming a pain. Thanks!
  19. There’s no chance it could have anything to do with the 7800s color balancing pot?
  20. So new TV. Same. Replaced the buffer. Same. Swapped in a different Maria. Same. I even ran everything off the resistors to the UAV just to be sure. This is the second one of these early 7800s that has some weird issue.
  21. The Maria was the first one I swapped. I will try another Maria just to be positive there. Like I said, I have seen this before to a lesser degree with the simple mod, but probably only two times in four or five years, so out of dozens of 7800’s.
  22. Okay, so it’s definitely the 7800. The new UAV gave the same results. 2600 games look great. I also already swapped out every socketed IC on the board (which is everything including RAM and BIOS) just to be sure those were all good. Which of the two ICs is the buffer (or is it both)?
  23. I have a another UAV so I will swap it in and see what happens. Thanks!
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