I am slightly concerned about the size of the gap between the connectors, though the marks show that the pins should be centred in the connection. No bypass capacitors seem to be fitted.
Originally people converted other game cartridges into Ketsui & Co, and they put a voltage regulator onto the board with manual wiring so they can use 3.3V parts. The Lydz board contains the voltage converter already. You could measure if the voltage regulator works and produces 3.3V.Also, am I missing a wire that should be there?
Too bad I don't have any of those . I sent lydz a PM, we'll see what happens from there.The three ROMs provide data to three separate busses on the cartridge, so I would expect either sound or graphics to work in some way, not fail completely.
I would contact the seller for a replacement or refund.
If you are in a hurry, there would be an option if you have an EPROM programmer and a bunch of 27c322 laying around.
After looking at the images, it seems like I have a V11. Also does anyone know what the red lever does in the bottom right of that one?