1. Solder the PIC onto the PCB (make sure to put it on the right way!) Note: It's easiest to use some solder flux, get corner pins tacked down and then solder the remaining pins. If you are using solder flux, you can put the soldering iron at about 750 degrees; just don't leave it on the pads or pins too long.
2. Flip the board over and solder on the Ceramic Resonator. Load the pads up with solder flux to make things easier. If you solder one end and then heat up the middle pad enough, the ceramic resonator will center itself on the pads. Then you just have to tack on the last pin.
3. Solder on the 220nF capacitor.
4. Solder on the 1uF and 100nF capacitors. Note: It doesn't matter which goes where on the board.
5. Solder on the USB cable. It's usually easier for the final fitment if you solder the wires to the bottom side of PCB (the side without the PIC).
6. Connect your PIC programmer to the PCB and program the PIC.
7. Test the adapter before you connect the NES controller. Plug it into a USB port and make sure that it is recognized. If it is not recognized, read the FAQ. DO NOT EMAIL ME ABOUT IT!
8. Disassemble the NES controller and cut the NES cable so that about 2” of wires are left inside the controller.
9. Clean the controller with rubbing alcohol and water, after all it has accumulated 15 years of dust!
10. Solder the NES controller wires to the PCB.
11. Use some double sided sticky tape and adhere the adapter to the board in the NES controller.
12. Reassemble the controller.

Note:
If you have problems or your controller doesn't work, the first thing to do is make sure that your assembled adapter looks like the pictures above. Make sure that you connected the wires in the correct places and that the PIC is placed correctly. If you still can't get it to work, read the FAQ.