Quick Question About YPbPr Snes

hi guys ive just dug my snes out of the cuboard and did the YPbPr mod to it just to test what its like but all i get is a black screen (no signal) when i try it on my monitors or flatscreen tv, im guessing they dont support the resolution but can someone look over my pictures and tell me if theres anything else i need to do from what ive read i may need resistors but thats just to correct the color which doesnt matter at the minute because i dont have any picture

here are my pictures:









thanks.

edit:
i should point out my snes is a pal one just incase it matters.

Remove the green wire, and connect it to the S-video connection's Y signal. I don't know anything about a PAL SNES so all bets are off.

Make sure you have 220uF capacitors in line with the red and blue wires (negative end facing the output) and a 75 ohm resistor in series as well.

i shouldnt have to do that with a S-ENC A in order to get a signal though right?

That is the way to get it close to correct. Whether or not your TV likes a weak signal with a strong DC offset is luck of the draw. At the very least just wiring your green Y connection to the S-video Y should get you a stable greyscale image. If it doesn't, then something else is wrong.

ok ive hooked my snes up through my elgato and managed to get this and it wasnt stable



so i guess i do need to do what you said, i have looked through what i have and it looks like i have two 220uf capacitors and some 100ohm resistors will that work.

update:
ive just connected the green to where you said

i have tried this but its still grayscale anyone know why



using two 220uf capacitors and two 100ohm resistors.

edit:
ive just soldered them onto a bit of board so they have better contact but no change, i dont know if its my elgato showing it as grayscale or some other reason can anyone tell from my pics and text if theres a reason its grayscale thanks.

Maybe try the resistors before the capacitor. Also, rewire the Y as I outlined above.

i will try that, and as i said above i did what you suggested.

like this:


ignore the direction of the wire this is just a picture i grabbed off google.

tried switching the wires around and its still grayscale :'(


heres some pics of my latest test setup:



(despite the way this looks on the picture its not touching any other connections)





any ideas?

edit:
ok i soldered the wires directly to the RGB connectors and it looks the same it must be the fact im testing it on my elgato so m just gonna order a GBS-8200 what do you think will that just work straight out of the box

ive ordered the GBS-8200 i hope that sorts it otherwise i have no idea why it refuses to be anything other than grayscale

Warning: I know jack squat about what's being worked on here (hardware-wise). I'm not really a hardware guy.

But this thread made me think of something from almost 6 months ago, where someone was doing some crap, and now all he was getting output-wise from his console was grayscale rather than colour: viewtopic.php?f=9&t=11569

You can search the forum for the word "carrier" and find similar posts regarding other consoles (ex. Playstation) and what not.

Maybe Jeroen can chime in here and give some advice? Might drop him a PM.

thanks i should point out when i hook this upto my tv using the normal composite lead its perfectly fine.

There was quite a bit covered in this thread.

viewtopic.php?f=12&t=8979

ok my GBS-8200 and i tested my snes with it and it works and looks great so ive cleaned up my YPbPr mod shortened the wires and glued it all down and its perfect now so thanks for all your help guys and here is a picture i took with my phone.



it looks better than it does in the picture but as you can see it works now

for anyone who doesnt know this is what i bought.



its a pretty small board actually the dimensions are 115*105*20mm

thanks again..

So what was the root cause of the problem?

the only thing i can think of was the tv i was trying it on didnt support the resolution the snes runs at since its a modern tv and as for the elgato i dont have the proper YPbPr lead made by elgato so it may have been that or it just doesnt like running the snes through YPbPr i just dont know, soon i am gonna buy the proper lead anyway so i will let you know if that gets it working on that but the GBS-8200 is working great and it can be used for many different things so im not too concerned it was pretty cheap anyway and i may at some point build it into the snes so i can connect the vga lead straight into the back of the snes and since it only takes 5v i could easily power it from the snes.

If you are using the turd GBS-8200 board then why not just pull RGB from the multi-out port anyway?

lol didnt spot that thanks i may try that