[FozzTexx] had an old Atari 800 collecting dust as well as chose to pull it out as well as get to work. The issue is that it’s seen some rough storage conditions throughout the years including what appears to be wetness damage. He’s checked out about a cartridge called SALT II which can run automatic diagnostics. getting your hands on that original hardware can be practically impossible, however if he had a flashable cartridge he might just download an image. So he purchased the most affordable cartridge he might discover as well as customized it to utilize an EPROM.
When he cracked open his new purchase he was greeted with the what you see on the left. It’s a PCB with the edge connector as well as two 24-pin sockets. These are developed to take 4k ROMs. He dropped in an EPROM of the exact same size however the pin-out doesn’t match what the board design had in mind. After complying with the traces he discovered that it is quite much an precise match for an Intel 2764 chip. The one issue being that the chip has 28-pins, four as well numerous for the footprint. The fascinating thing is that the larger footprint (compared to the 2732) utilizes all the exact same pins, just contributing to the top as well as moving the power pins. A little amount of jumper cable soldering as well as [FozzTexx] is in business.