Component Y Pb Pr Compatibility

[jedcooper]

hello!

I'm wondering if the Amigas have component compatible outputs. As I have a HD Box here from hong kong somewhere, which works great with XBOX 360 etc. even Playstation 1 and 2 on VGA Monitors. Image quality is decent.

As the HD Box only has three inputs that are R, G and B, I'm just curious if they would work with the amiga RGB output?

Anyone tried yet?

Regards
jed

[Franko]

hello!

I'm wondering if the Amigas have component compatible outputs. As I have a HD Box here from hong kong somewhere, which works great with XBOX 360 etc. even Playstation 1 and 2 on VGA Monitors. Image quality is decent.

As the HD Box only has three inputs that are R, G and B, I'm just curious if they would work with the amiga RGB output?

Anyone tried yet?

Regards
jed

Not quite sure what you mean by HDbox, do you mean a High Def TV or one of the little boxes of tricks that convert RGB to VGA etc...

The amiga video port gives out RGB signals but you also need to use the composite sync signal or the horizontal & vertical sync signals.

If the box you have only allows for RGB input and no sync signals then usually this is looking for a sync signal placed on the green output signal.

Sound complicated, but it's not really, could you give more specific details about this box your using...

[jedcooper]

Yes, I got this HD Box. Bought it off of ebay germany. From Asia.

Well the sync could be the problem, indeed, but before I solder stuff together, I just wanted to ask if maybe someone tried that before with component.

Even connecting Amiga to LCD HDTV via component, if that works, the HD Box would work, too, I assume.

I'm not yet familiar with YPbPr/Component specs.

[Franko]

Just had a quick look, it's similar to a box I use. It should be possible to use the RGB + horizontal + Vertical signals from the amiga via the VGA input. It will depend on the box itself if it can sync down low enough to be able to use the standard amiga sync frequencies.

[jedcooper]

Well for overall RGB (Component) requires a sync signal. That is seperate syncs, composite syncs, or like my HD Box Sync on Green I assume. Source: Wiki

I don't think Amiga RGB 23-pin provides Sync on Green. A simple question is: Would it work if I join Green + CSync together in one cable or is this a bad idea?
Well that is for people who only got such a box/converter with RGB only.

But, you're right, there's a VGA input on my HD Box.
If it's not for passthrough (I hope!) and can be used for 15kHz VGA (is that a standard??) it might work with an Amiga VGA adapter only.  ...making it a cheaper solution than buying twice price scandoublers.

[Franko]

I don't think you'd be able to directly add the horizontal & vertical syncs straight onto the green signal, without a bit of technical wizardry. Never tried it myself to be honest, but I wouldn't think it would be a good idea. (no the amiga doesn't provide sync on green).

Reckon you can only hope that the VGA input isn't just passthrough and are able to use the box that way. Hopefully someone else out their may have used this box before and can advise you a bit better...

This place sells lots of converter boxes, they are good quality, but can be a bit pricey, plus I don't reckon you'll be wanting to have to buy another box right now.

http://www.keene.co.uk/electronics/product.php?mycat=9_90&start=0&end=207

[mongo]

Y Pb Pr is not the same as R G B.

[brownb2]

Y Pb Pr is not the same as R G B.

Yep I can confirm there is a 4 letter difference.

[Ilwrath]

Y Pr Pb is a very different color encoding than RGB.  Even though the cables are Red Green and Blue, their signals aren't.  

The green cable carries Luma and Sync
Red carries Red Compliment (R - Y)
Blue carries Blue Compliment (B - Y)
and Green value is calculated by the receiver.

See the color signal conversion chart here.

There's a few threads like this one on Amiga.org, as well.  (Ironically, I can't find the thread inspired me to tinker a bit with drawing out a conversion circuit before I got a headache and remembered why I didn't become an EE.)

[Boudicca]

Yep I can confirm there is a 4 letter difference.

If you stare long enough, it spells smart arse.....

and if you specifically, connect it to a mains socket, life will go on happily without you.....

[brownb2]

If you stare long enough, it spells smart arse.....

and if you specifically, connect it to a mains socket, life will go on happily without you.....

.. Civil/Human Rights Activist... I.T Systems Administrator - NHS

I see what you did there... you have my best interest at heart and are trying to trump up some business for the NHS!