I'd like to hardwire a Famicom to NES adapter into a shell to save space, but would like to include the CIC from the NES donor cart. I imagine that the pinout should match up with this: http://nesdev.com/NES_ADAPTER.txt plus the CIC. However, I have seen the chip attached to an adapter, but additional resistors, capacitors, and a transistor were used. When I look at most pcbs I tend to only see an additional capacitor. Can anyone help me figure out how to incorporate a CIC into a hardwired adapter? Thanks!
Why dont you better disable the piracy protection chip on the NES itself? Is easier cut one leg and go.
I had considered that, but this is for a gift for a friend who I would not expect could make the modification. I don't mind altering the cartridge in order to make it playable on all NES control decks.
This stuff is no brainer. Take a retail, existing adapter and a cart you can spare the CIC from. Pop the CIC out and rig it up on the adapter exactly as it was on the original cart. Presto! It's done.
Yes I acknowledged that approach, my question lies with the additional components seen in other pictures around the Internet. I believe they were part of a knock out circuit, but I thought I would ask if any of it was necessary.
Additional components would be a bypass ceramic capacitor "104" or 100nf(nano farad) and a electrolytic capacitor of 10uf(micro farad) to stabilize the power rails. Both connected between +5v and GND near the CIC chip. If you use a real CIC, you don't want/need the knock-out circuit.
This really sounds so complicated. Taking apart the NES is easy enough, and I did it on my first try. Disabling the CIC chip would just require grounding a single pin. Although you may actually be in the UK or something.