Printer cable, solder, soldering iron, knife, flat-head/Phillips screw drivers, old NES consoles, resistors, diodes, transistors, electrical tape, flux, flux remover/rubbing alcohol, side cutters, wire strippers, continuity tester/multimeter, a computer running MS-DOS/Windows 3.1/9x/NT/ME/2000/XP, driver software, some 22 AWG or 30 AWG copper wire, old NES cartridges, some method of static protection, small paint brush, cloth/paper towel, anti-static bag, Cypress brand static memory chips, tweezers/needle-nose pliers, electronics switches, file & LOADS of patience.
The console's circuit board is very delicate. Handle with care. Take anti-static precautions before working on the board. Do not work on the board while it is plugged into any other device, especially when that device is giving power to the work piece. Store the board in a static free environment when not working on it. Do not work on the board while power is flowing through unless certain measurements are needed to be taken; if so, make sure proper precautions are taken to avoid shock.
This project is a horrible nightmare for amateur electronics hobbyists because it requires extensive knowledge of how to read schematic diagrams & their symbols, along with the skill to use prototyping boards, custom-made circuit boards & surface-mount components (like 80-pin microchips the size of a dime or a penny).
Click here to read the full documentation in PDF format (using either Adobe Reader or Foxit PDF Reader,) & scroll down to see the schematics of the copier & a cartridge made entirely of static RAM chips, for the use of saving video game images for game play on an NES console:
Here is a short list of games that have been copied with this device:
What is Famicom Disk System BIOS (J).nes? It's the resulting image file created when someone plugs a Nintendo Family Computer Disk System cartridge into the copier (using a special adapter that allows Japanese cartridges to insert into an NES console). The original cartridge can only fit into a Japanese NES (originally called Nintendo Family Computer) or an NES Revision 2 console, & allows the console to play Japanese games saved on floppy disks (note that the floppy drive connects to the cartridge & sits under the console).
Some NES emulators can be configured to use either this image file or the file disksys.rom in order to play the images of Japanese games saved on Famicom floppy disks. So, if a Famicom Disk System cartridge is available & searching for the file disksys.rom over the internet is not an option, build this copier, plug the cartridge into it & save the resulting image file onto the computer. This way, the NES emulator can finally play those crazy Japanese floppy games.
The documentation, driver & schematics for this project can be downloaded here or in the Downloads page.