Strange RGB on NTSC Wii Issue

[thebeautifulones]

Can anyone tell me what's going on here? It's an NTSC videomode-switched to PAL Wii, using an official RGB scart cable.

Composite PAL:


RGB PAL:



The PVM identifies the signal as PAL.

[Xan]

Where did you get the impression that you can get RGB out of a NTSC Wii? A quick search would have told you otherwise...

[thebeautifulones]

From various threads on this forum and others.

Here's one:
http://shmups.system11.org/viewtopic.php?f=6&t=56023

Some talk about switching the whole system menu to PAL, others say that you just need to change the video mode. So far I've only changed the mode.

[Xan]

OK, guess I missed the homebrew options.

Tried the suggestions in this thread? https://gbatemp.net/threads/rgb-on-ntsc ... ne.337806/

[thebeautifulones]

The next step, I think, would be to change the system completely to PAL and see if that makes a difference*, but I hesitate to do that when I've seen that other people have had success with forcing games to PAL or PAL60 through USB Loader GX (so far when I've done that, I get the same strange output, with the inverse black/white, and lots of interference).

I was wondering if someone might have an idea of what's going on just from looking at the pictures. When set to NTSC I get the common red-tinted screen, but when set to PAL I get this odd dim output that does seem to contain every colour, but at the wrong levels, with interference, and black where white should be.

*edit: Changing the system menu and everything else to PAL made no difference. I'm guessing that either there's something wrong with the cable--though there's nothing obvious I can see, or the Wii isn't outputting the signal correctly*.

*edit 2: I've tested with component cables, with Wii still set to PAL, PVM's set to component input, showing PAL 575/50i, and it's displaying perfectly.

RGB PAL:

Composite PAL:

[ZellSF]

From what I've read, a Wii set to PAL should not output YPbPr

Uh. Yes it should.

Bad cable would be my first guess. It's a lot more likely than something going wrong with the Wii hardware and only affecting PAL output.

[thebeautifulones]

From what I've read, a Wii set to PAL should not output YPbPr

Uh. Yes it should.

Bad cable would be my first guess. It's a lot more likely than something going wrong with the Wii hardware and only affecting PAL output.

The pinout is different from what I found online:

http://gamesx.com/wiki/doku.php?id=av:w ... _av_pinout

My cable:



Mine has pin 17 connected to what I'm pretty sure is ground, but in the diagram there's nothing on 17. And my cable is lacking the pin 4 audio ground from the diagram. Also shouldn't I be getting continuity from the ground wire (17 on mine) to the RGB video signal wires/pins? There's no continuity on mine.

The metal shielding surrounding the pins is also not grounded--I don't know if that's right, but there's no sign of solder on it, or a hole for a wire.

Edit: I just pulled the ground pin out and connected it to the metal shield; now it's working perfectly. I don't understand why the official cable was wired like this. Any opinions?

[Fudoh]

Edit: I just pulled the ground pin out and connected it to the metal shield; now it's working perfectly. I don't understand why the official cable was wired like this. Any opinions?

How do you connect to your PVM ? Through a Scart to BNC adapter ? It's possible that your adapter doesn't grab all the possible ground pins, so it might expect ground on a pin that wasn't connected on your cable, while it wasn't accepting ground on a pin where it was connected after all. On a TV with a direct Scart input this isn't a problem since all the ground pins are connected anyway.

[thebeautifulones]

Edit: I just pulled the ground pin out and connected it to the metal shield; now it's working perfectly. I don't understand why the official cable was wired like this. Any opinions?

How do you connect to your PVM ? Through a Scart to BNC adapter ? It's possible that your adapter doesn't grab all the possible ground pins, so it might expect ground on a pin that wasn't connected on your cable, while it wasn't accepting ground on a pin where it was connected after all. On a TV with a direct Scart input this isn't a problem since all the ground pins are connected anyway.

Yeah, I use a Scart to BNC adapter. Thanks, that makes sense; I think you're right.

If anyone's considering using RGB with their Wii and doesn't care about 480p, I recommend it. The signal is pristine from this black GC-compatible Wii. And the system menu doesn't need to be changed, only the video mode. You can use Wii Mod v3.2 to change it.

[yxkalle]

Nintendo SCART-cables only grounds pin 17.