How To: Connect NES controller to Famicom

[133MHz]

Yup.

[Arnold101]

i've finded the pal cpu from a nes and tomorrow i have to buy the crystal clock generator.
on ebay i've see one like this


is the same? it have only 2 pin instead of 4.
if my local shop have only this of 2 pin are good or not? and how must be connected? (in fact i've see on old pc cards and they are all 2 pin version)

it's different from this? http://www.aelcrystals.co.uk/leaded-oscillators.shtml
thanks 

[133MHz]

i've finded the pal cpu from a nes and tomorrow i have to buy the crystal clock generator.
on ebay i've see one like this


is the same? it have only 2 pin instead of 4.
if my local shop have only this of 2 pin are good or not? and how must be connected? (in fact i've see on old pc cards and they are all 2 pin version)

No, it's not the same. If you use that you'll need to make a driving circuit for it.

it's different from this? http://www.aelcrystals.co.uk/leaded-oscillators.shtml
thanks 

Yes, it's different.

[Arnold101]

ok i'll take the 4 pin one

[Mr.collection]

I would really want to know how to make a 2 player adapter.
A 5200 controller cord would be perfect if it had pin 12.

[133MHz]

There must be a way to get those long-ass DB-15 connectors for Famicom use. Maybe replacing the Famicom male port with a more normal one?

[UglyJoe]

I think it would be easier to just dremel away the plastic around the expansion port so that the entire plug can fit into the slot, instead of just the tip.

[133MHz]

Yeah but that would ruin the Famicom! I think installing a shorter male plug inside the Famicom would be a little less destructive

[Arnold101]

my local shop don't have it 

[133MHz]

If you can't get 4 pin crystal clock generators you can build a driving circuit for a 2 pin crystal oscillator. Here's the schematic:


(Right-clicky and select 'view image' or similar in your browser to show it at full size).

The ---|[]|--- thing is the 2 pin crystal oscillator. I recommend building it on a small piece of stripboard for neatness and to conserve the cleanness of the clock signal.

[Arnold101]

what are the triangles? the 100N what is? the other 330 are resistors right?

but 28.6 mhz crystal clock generator exist?   

and if i substitute the internal 2 pin crystal clock of the famicom?

edit: i have 2 crystal by 14.3 mhz (2 pin model) and 14.3 x 2= 28.6 i can connect together?  :hope:

[133MHz]

what are the triangles?

The triangles are the NOT gates of the 74LS04 TTL chip.

the 100N what is?

A 100nF (nanofarad) ceramic capacitor (non-polarized).

the other 330 are resistors right?

Yeah. 330 ohm.

but 28.6 mhz crystal clock generator exist?   

Yeah, I have a lot of weird-ass values in my parts bin.

and if i substitute the internal crystal clock of the famicom? is a 21.477 mhz one

You'll mess up the video output since the PPU takes the clock from there.

edit: i have 2 crystal by 14.3 mhz (2 pin model) and 14.3 x 2= 28.6 i can connect together?  :hope:

None that I know of.

[Arnold101]

thanks

understand, i have to take only a 4 pin model, so you have a 28.6 crystal? i hope to find one here 
you can find one on web? i've tried but no result

[133MHz]

With 4 pin crystals is easier since you don't need to build external circuits, but if 2 pin is the only you can get, then building the circuit doesn't sound like a bad idea at all.

Sorry man, checked my oscillators bin and the closest values I've got are 25.1750MHz and 31.3344MHz. But I can attest to their existence, I once had one or two lying around (they can be damaged very easily by too much heat from soldering! personal experience, be careful!).

Maybe if you don't get a close value, you could get away with a higher frequency crystal and binary/decimal frequency division using decade or binary counters.

I know people in the USA can get them very easily through distributors such as DigiKey or MCM Electronics, but I don't know about the rest of the world ^^U. Maybe somebody here in the US could get some and send them to you .

[Arnold101]

Maybe if you don't get a close value, you could get away with a higher frequency crystal and binary/decimal frequency division using decade or binary counters.

what is this? difficult to do?
i have a 56 mhz one

MCM Electronics don't have on their site

and if i buy a 30mhz one? http://www.webtronic.it/pages/ITA/prodotto.asp?ProdottoID=3642
i think are more easy to find at local shop. they cost 10 dollars? 

ps. even a megadrive motorola m68000 is easily damageble from soldering? (made by tv repair shop that install modchip on ps1-ps2 not by me)

and the nes cpu? is the same?