Joe wrote:These pictures are helpful, but the chips cover too much to trace the IRQ circuit.
If you remove the chips and take a picture of the empty board, I could trace it. Of course, then you won't be able to play the cartridge anymore (unless you're skilled enough at soldering to take it apart and put it back together).
Do you have anything you could use to trace it? I use a multimeter, but someone else might be able to suggest some other tool if you don't have one of those.
I want to discuss this with the owner of a cassette
I'm just trying to find all kinds of perfect MAPPPER cassette