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Found 4 results

  1. Hello! I'm wondering of anyone has investigated the feasibility of modding a 2600 so that you can switch between clock frequencies and/or color palettes. The goal of such a project would be to play cartridges of differing regions on the same machine. I've seen a similar project on a Commodore 16 where the clock crystal was replaced with an Arduino, the latter programmed to output different selectable frequencies to produce a signal for PAL and NTSC video. As for the color palette, I believe that would require a swap of the TIA chip, which could be done manually if the board is socketed. I haven't studied the schematic, and a cursory search doesn't show anything useful. To anyone with the hardware experience, do these ideas seem sound? My assumption is that the only difference between a PAL, NTSC, and SECAM 2600 are the clock crystal and TIA since the game cartridge does all the video synch. Steve Guidi
  2. Hello, Found this in the basement of my parents. Do you know if it worth something ? edit : sorry for the weird behaviour of photos and link ... I am on mobile... [url=https://postimg.cc/xczhjLNG][/url] [url=https://postimg.cc/9DSBDk3r][/url] [url=https://postimg.cc/svjmqS9D][/url] [url=https://postimg.cc/RWqRVBDk][/url]
  3. Hello everyone, I looked at the ATARI FAQ online but couldn't find a satisfying answer. Would anyone know why the SECAM XEGS made for the French market has 2 color knobs? Is there a way to adjust those in a standardized manner or is it just about finding the best PQ on your screen? I'm attaching a picture of the MB (gorgeously restored by the tremendous Paul Westphal @ EightBitFix). Thanks!
  4. I have in my possession a problematic SECAM board of which i have modified with 5volt ram, and it still does not work. i want to replace the bios chip with a new one on eprom. looking at the guide here: http://console5.com/wiki/Colecovision_BIOS_Replacement it does not help me at all. the guide appears to not cater for the board types i have even my PAL board does not have the same layout as described in the guide both of the boards have similar layouts to the pictures i have attached, does anyone have any info i could use to replace these bios chips with new ones? is there a guide that someone knows of that will describe the procedure for this board layout? maybe someone has the pin layout of the bios chip used, i could then cobble something together myself that will work by matching the pins from the eprom etc
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