Hello! I'm currently experiencing an issue where I'm getting flashing @_@_@_@ at start, can clear and reset via my Apple II keyboard (which has 5v and lights up) but not getting any input from the ASCII keys. I was using a wire to short the pins manually to clear screen before modding the keyboard. It's possible I tapped the wrong pin, or - and be gentle - may have had the DIP in backwards at one moment. I'm not entirely sure.
- I tried replacing the PIA on the motherboard with an origianl AMI, and swapped the 7404 on the daughter board w/ a new one from Mouser, to no avail.
- The keyboard did input once before the issue, as I was able to input and run the ASCII test program. All keys worked and OH my, what a feeling that was.
- I triple checked the wiring from the Keyboard to the DIP, which was configured using this guide: https://www.applefritter.com/appleii-box/APPLE1/Bilder/Using%20Apple%20II%20Keyboard%20for%20Apple%201.pdfWhat should I check or aim to replace next? I'd be enormously grateful for any guidance at this point. I have the utmost respect for the folks on this forum, generating a wealth of historical preservation. Separately, I do have some extra period accurate parts for a Byte Shop case build (using Sepele so it's clearly fake) which anyone is welcome to. They include a littlefuse holder, an amphenol convenience port, a red 120V switch that matches Apple 1 #39 from the Science Museum of London, if anyone is missing a part.
I've also built a Telnet service that uses OpenAI to generate any image you can dream of, and return it as ASCII for the Apple 1, using P-lab's amazing wifi board. Will post more about that soon!