Wiring NES controller ports into a famicom

Famicom control pad can't work with a very long cord?  Nintendo fixed that with their nes control pad pcb:



Nothing quite like more power to boost the signal strength.

Big thank you to Angiebug for pointing out I should post this mod in this thread as well.

This is great information however I've read in places that the Famicom controllers are limited to a specific length and may require additional modification.

AngieBug wrote:

This is great information however I've read in places that the Famicom controllers are limited to a specific length and may require additional modification.

I fixed that ages ago.  Since the nes controllers have unlimited length I looked at the difference between the nes controller pcb and the famicom.  Was just some pull up resistors.  Aside from the resistors the nes and famicom player 2 controller pcbs are identical.  I added the resistors to my famicom controllers and now they work with unlimited cord length.

I seem to have forgotten to post it in an easy to find place, whoops.



Taken from here:

https://16bitgamer.canadian-forum.com/t271-twin-famicom-modded-control-pad

Yeah that wasn't a very obvious thread name.

There's also a pin on the famicom expansion port that goes to one of the nes controller ports to be able to use the light gun, if you look at the schematics of the nes and famicom you can find it.

Big thank you to Angiebug for pointing out that it's a good idea to post that mod in this thread.

Because I had a 1.6k and a 2.0 k ohm resistor I decided it would be worth the dollar in my pocket to simply solder the two together and get a 3.6k ohm resistor.

For people who don't know any resistors value can be checked by it's colors or with a good multi-meter.

The following link is great for pesky 5 and 6 value resistors.
http://www.digikey.ca/en/resources/conversion-calculators/conversion-calculator-resistor-color-code-4-band

The blue one is a 5 color and the beige is a 4.

Blue: 2k Ohms 1% (Red black black brown brown)

Beige: 1.6k Ohms 5% (brown blue red gold)

Yeah I do that all the time, except why didn't you just clip the legs short, tin and solder them together?

Yep, That's the next step but now the shrink hides the work (they where checked, soldered closely, and then wrapped)

R2 looks more singed then it really is. I wiped it clean and it looks fine now.

Now i wait for my Famicom...

For my controllers I didn't use heat shrink tubing just because there was nothing on the back side of the pcb for them to short against.  It certainly doesn't hurt to be extra cautious    

It doesn't matter if a resistor is a little singed, if the leg is still attached it should work just fine.  Resistors are so cheap it's not like you need to worry about reusing it later for something else.

Very cheep! It's just a small 6 min drive to pick up more 20cent resistors.

AngieBug wrote:

Very cheep! It's just a small 6 min drive to pick up more 20cent resistors.

I get packs of 100-500 from ebay for like, 2$ shipped.