Recent content by spokito95

It really was that damn Neo-PCM that was faulty. I was convinced I had desoldered the original ROMs from the correct PCB — beginner's mistake. In any case, a big thank you to everyone for taking the time to read my request.

Thanks for the info, that's good to know! :p) However, the sound issue still persists even after reprogramming the V EPROMs using 27C160s.

Hello, Yes below the picture of my boards I even tried a second conversion using two other PCBs from the same Puzzle Bobble game. This time, I used 27C322 (4MB) EPROMs for V1 and V2, and a 27C160 for P1 — and I'm still getting that awful, messed-up sound. I honestly have no idea what's...

Hi everyone, I'm happy to join the community! I'm passionate about electronics, arcade hardware, and retro gaming. Looking forward to sharing and learning with you all!

Hello, can you tell me exactly what you did on the PROTOP PCB and the CHA256 PCB? I see in your photos that you didn't install a 74LS08, but I had to add one because the image was full of glitches — actually, the screen was just big messy pixels everywhere, and you couldn’t make out the game...