modded gamecube scart cable RGB switch fix

[Shadow_Zero]

On another note, this is what my tv says.
If I got an A/V channel and it doesn't receive any signal it says: "CVBS".
If I turn on the SNES with the (modified) RGB cable it says: "RGB".
If I turn on my Q with s-video it says: "Y/C".
If I turn on my Q with the yellow cinch it says: "CVBS".
If I turn on my Q with the modded RGB cable it says: "Y/C".

That last one is kinda weird, but dunno what it means.
I tried various things, but it's still no image and no sound.

[Papercut]

I assume the RGB SCART provides audio, or do I need to use the seperate phono connectors?

This is a modded ntsc GameCube RGB scart cable right? Ah, it is, right.

As well as plugging into the digital AV socket, it will need to connect to the normal AV socket. This provides audio, and usually composite video too.

If your modded RGB cable has phono sockets for audio instead, then yes, you'll need to hook these up for sound. The digital AV socket does not provide analog audio.

If my SNES has proper RGB, is the solution on top of this thread still an option or not?

yep, it is.

I don't feel much for opening the cable, but if there's no other way I might give it a try...

if you're not sure, then be careful. you should be able to figure out whats going on by seeing how pins 8 and 16 are connected in the scart plug, and the values of any resistors.

On another note, this is what my tv says.
If I got an A/V channel and it doesn't receive any signal it says: "CVBS".
If I turn on the SNES with the (modified) RGB cable it says: "RGB".
If I turn on my Q with s-video it says: "Y/C".
If I turn on my Q with the yellow cinch it says: "CVBS".
If I turn on my Q with the modded RGB cable it says: "Y/C".

ok, I'm convinced your TV is telling the truth. does seem like the RGB switch voltage is wrong.

how many phono sockets does the modded RGB cable have? If three, you'll need to connect the right one to composite video aswell, most likely.

If the cable came with phono sockets, there should be a way of figuring out which is which.

didn't you get some kind of how-to-connect manual?

[Shadow_Zero]

http://www.goldenshop.com.hk/AI-trad/gc/qrgbcable.htm

That's the cable I have (only I got it from Lan Kwei that is).
So if I connect the SCART I won't have audio? I HAVE to connect the audio cinches to get it?
If that's the case I don't see the use of the RGB cable to have those audio cinches, since the Digital A/V out doesn't output audio. Then a 2 to 2 audio cinch (which is supplied with the Q itself) should be used.

So that makes me think that the RGB SCART outputs audio too, and the audio cinches are to connect it to an external audio device, such as a stereo. But I'm probably wrong.

I tried connecting the yellow cinch with and without the SCART plugged in, but that doesn't do anything.

[Papercut]

I think you're getting confused.

In my previous post I'd forgotten you had a Q, so when I talk about connecting the normal AV cable I really mean audio and composite video phono sockets on the back of the Q.

Connect the three phono plugs on the Q RGB cable to video out and left/right audio out phono sockets on the Q. if the phono plugs are colored as in that link, it should be obvious what goes where.

the RGB signal will _require_ composite video to be connected to the Q for sync.

in fact, as a test, you could connect the three phono plugs, the scart plug, but _not_ the digital AV plug, and you should have ntsc comp vid and audio only via the scart plug.

[Papercut]

To try and clarify the audio connection:

on the Q analog audio is provided by two pairs of phono sockets.

with the modded RGB scart cable the scart plug needs to be wired up to a pair of those audio sockets for you to get sound.

thats why your Q cable has two audio phono plugs on it, they need to be connected to the Q's audio sockets to get sound through your TV.

you will also need to connect the composite video plug to composite video out on your Q, because thats where the TV gets the composite sync signal from. otherwise you'll just have a jumble of colors or no picture at all.

having said all that, you may still have the rgb switch voltage problem.

unless your tv is super clever and spots that the composite sync signal is missing and doesn't bother switching to RGB. unlikely.

Have you had the phono plugs hooked up to the Q or not?

[Shadow_Zero]

Ah, ok. Now I get it.
Didn't think I needed to connect the composite cable to the Q.
Having done that I now have audio and video, but as you predicted it's composite (my tv says: CVBS).
And I can just from the image quality that it's composite.

If I unplug the Digital A/V the same happens, only the tv doesn't auto switch to the a/v channel.

So what exactly do I need to do to fix this?

[Papercut]

sounds like... the RGB switch voltage is wrong

[Shadow_Zero]

I can't seem to find an image of the pin numbers of the SCART.
Does it start in the upper left with pin 1 and then goes the right with pin 2 etc.?

In that case pin 8 has a white wire without anything and pin 16 a green wire without anything (I recall the "open" spot is counted as a pin too, else it only have 20 pins).

[Shadow_Zero]

Got a reply from Lan-Kwei today:

Hello Renzo,

thanks for the update, but I just got the bad news in: I've done a little research, because we got 3 negative feedbacks in the last week about the Q RGB cable (none before) already. So I've checked back with the engineer to check one of the cables in-stock, and upon opening them, he said that one transformator was missing?! I've written to the other customers who complained already, and one of them even confirmed this - he fixed it himself by adding the missing piece. Of course we cannot ask everyone to do so, so we have to recall the cables, including yours (unless you know how to fix it yourself).

You can ship it back to us, we will refund you the costs for that and replace it with a new one.

Sorry for the inconvenience!

Best Regards
Michael

https://www.lan-kwei.com

@Papercut: Is this the same solution as you said in the beginning of this thread?

[Papercut]

could be similar.

sounds like the RGB switch voltage is missing entirely.

by 'transformator' I can only hope they mean resistor.

for scart pin out see here:

http://www.gamesx.com/hwb/co_Scart.html

[Shadow_Zero]

Doh!
Now that I have sunlight I see the numbers are written on the SCART ^_^;
Ok, my pin 8 has something that's also connected to pin 16 (what does a resistor look like anyway?).

[Papercut]

A stiff wire with a colored bead. The bead will have colored stripes indicating it's value.

It will probably be covered in some kind of insulation.

[Shadow_Zero]

A stiff wire with a colored bead. The bead will have colored stripes indicating it's value.

It will probably be covered in some kind of insulation.

Yeah, there's a stiff wire connected to pin 8 and 16. In the middle is the resistor probably. It's got coloured stripes, so how do I figure out the value?

[Papercut]

google "resistor color calculator"

[Shadow_Zero]

google "resistor color calculator"

Now that was a pretty obvious answer ^_^
I think my cable has the colours: red, black, brown, gold
which would make it a 200 ohms resistor