New gamer

Wow that is an awesome explanation. That is very insightful and thank you so much for taking the time to give me that example and educate me on that it is truely appreciated. Also Is there a pinout diagram for the 161 chip so I know what pins to leave disconnected. Sorry for all the questions.

Ok thank you very much for taking the time to help me and give me the links. Appreciate it.

I am using donor carts. I like making repros of unreleased or famicom only titles such as Challenger for example. I know that is an Nrom 256 so rather than getting nrom 128, nrom 256, and CNRom boards for different games, I figured it would be better to just use CNrom boards only that would potentially work for all the boards -

I am so sorry if this is a dumb question and I have been trying to find documentation for research and am coming up dry. Would you mind explaining exactly what you mean by "Don't populate the 161 and tie the upper address bits that the 161 creates on the CHR ROM high or low and you should be good" I have made repros in the past but have usually just followed the documentation i found for bending pins up and connecting them to different holes. I don't understand about high and low addresses. I would love to learn more about this and would love if I can get a bit of clarification. Again sorry if it is a dumb question. Thank you again for your info

Hello all I have a question about CNROMs. I think that they can be used in place for any CNROM, NROM 128, or NROM 256 board for repros. Is this correct. Thank you.

Hello all, I have a konami 352026 board which is a tlrom but was wondering about the wiring of it for a repro. I know that boards made by acclaim and other 3rd parties like color dreams don't require any rewiring, but I was not sure about this board in particular as it has Nintendo stamped on it. Please let me know if anyone has used this board for a repro in the past. Thank you