Re: [vdr] VGA2SCART: circuit diagram with audio pins

[Thomas Hilber]

On Wed, Aug 25, 2010 at 06:46:54PM +0200, Matthias Fechner wrote:
> thanks, that are great news (but in the README only the ATI and Intel
> cards are mentioned :) ).

right. The circuit was just a byproduct for the vga-sync-fields project.

> ok, so you can use +5V from an USB port which I need for infrared too.

sure

> I will keep you up-to-date.

Maybe you are interested in [1]. That guy uses also that minimum 
VGA2SCART circuit.
BTW: In the meantime yaVDR [2] includes native VGA2SCART support.

cheers
   Thomas

[1] http://www.vdr-portal.de/board/thread.php?threadid=98112
[2] http://www.yavdr.org/


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Re: [vdr] VGA2SCART: circuit diagram with audio pins (was: VDR with 50Hz clock output)

[Thomas Hilber]

On Mon, Aug 23, 2010 at 10:59:52AM +0200, Paul Menzel wrote:
> I found an updated diagram at [1]. I hope it is what you wanted.
> 
> [1] http://crashme.cx/vdr-portal-picts/VGA_SCART_RGB_NEWER.png

this is just a full blown schematic with charge pump circuit to
provide up to 11V at SCART pin 8. If you don't need that
you might use my stripped down to the bare minimum circuit shown at [1].

The simple circuit has been proven successful in many 
cases. It has been sold ready to use at [2]. I don't know if
it's still manufactured.

cheers
   Thomas

[1] http://lowbyte.de/vga-sync-fields/vga-sync-fields/README
[2] http://www.vdr-portal.de/board/thread.php?threadid=84693

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Re: [vdr] VGA2SCART: circuit diagram with audio pins

[Matthias Fechner]

Hi Thomas,

Am 25.08.2010 18:33, schrieb Thomas Hilber:
> AFAIK all more recent (aka VDPAU compatible) nVidia graphics run VGA2SCART
> flawlessly. There are found many VGA2SCART success stories at [2].

thanks, that are great news (but in the README only the ATI and Intel
cards are mentioned :) ).

> If you should decide to use my favorite VGA-to-SCART adaptor [1] a minor
> problem could arise. Newer VGA ports often don't provide 5V+ at pin9 
> (VESA-DCC)
> any more. In that case you simply use any other 5V+ source instead.

ok, so you can use +5V from an USB port which I need for infrared too.

I will wait now till the new Asus ION2 board is available for a
reasonable price and then I will give it a try with my old system.

I will keep you up-to-date.

Bye
Matthias

-- 

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook

PS: sorry for double mails, I currently tracking down the problem, if it
happens again I should have the required information in my logfiles now

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Re: [vdr] VGA2SCART: circuit diagram with audio pins

[Thomas Hilber]

On Wed, Aug 25, 2010 at 01:36:34PM +0200, Matthias Fechner wrote:
> hm, here you are right.
> Does anyone knows if the POV mainboard  
> (http://www.pointofview-online.com/showroom.php?shop_mode=product_detail&product_id=97)
>  
> works with the VGA2SCART adapter?

AFAIK all more recent (aka VDPAU compatible) nVidia graphics run VGA2SCART
flawlessly. There are found many VGA2SCART success stories at [2].

I myself use an POV ION 330-1 for VGA2SCART.

If you should decide to use my favorite VGA-to-SCART adaptor [1] a minor
problem could arise. Newer VGA ports often don't provide 5V+ at pin9 (VESA-DCC)
any more. In that case you simply use any other 5V+ source instead.

cheers
  Thomas

[1] http://lowbyte.de/vga-sync-fields/vga-sync-fields/README
[2] http://www.vdr-portal.de/


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Re: [vdr] VGA2SCART: circuit diagram with audio pins

[Matthias Fechner]

Am 24.08.10 16:35, schrieb Tony Houghton:

It depends on whether the Ion2 can generate the modelines you need.
You'll have to check around for that. I expect most people buying new
hardware like this would already have an LCD TV by now, so the info
could be hard to find :-(.


hm, here you are right.
Does anyone knows if the POV mainboard 
(http://www.pointofview-online.com/showroom.php?shop_mode=product_detail&product_id=97) 
works with the VGA2SCART adapter?


If yes then I could use the new board for the LCD and I can kick out my 
old Pentium II 233MHz Box :)


Thanks,
Matthias

--
"Programming today is a race between software engineers striving to 
build bigger and better idiot-proof programs, and the universe trying to 
produce bigger and better idiots. So far, the universe is winning." -- 
Rich Cook


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Re: [vdr] VGA2SCART: circuit diagram with audio pins

[Tony Houghton]

On Tue, 24 Aug 2010 16:07:43 +0200
Matthias Fechner  wrote:

> wow, that are interesting news.
> Does it means I can buy a Atom board with an ION2 chip on it and can use 
> the VGA connector to connect my old TV till I buy a new LCD and use then 
> HDMI?

It depends on whether the Ion2 can generate the modelines you need.
You'll have to check around for that. I expect most people buying new
hardware like this would already have an LCD TV by now, so the info
could be hard to find :-(.

-- 
TH * http://www.realh.co.uk

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Re: [vdr] VGA2SCART: circuit diagram with audio pins

[Matthias Fechner]

Hi List,

Am 23.08.10 15:26, schrieb Tony Houghton:

[1] http://crashme.cx/vdr-portal-picts/VGA_SCART_RGB_NEWER.png


wow, that are interesting news.
Does it means I can buy a Atom board with an ION2 chip on it and can use 
the VGA connector to connect my old TV till I buy a new LCD and use then 
HDMI?


Bye,
Matthias

--
"Programming today is a race between software engineers striving to 
build bigger and better idiot-proof programs, and the universe trying to 
produce bigger and better idiots. So far, the universe is winning." -- 
Rich Cook


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Re: [vdr] VGA2SCART: circuit diagram with audio pins (was: VDR with 50Hz clock output)

[Tony Houghton]

On Mon, 23 Aug 2010 10:59:52 +0200
Paul Menzel  wrote:

> Am Montag, den 23.08.2010, 09:28 +0200 schrieb martinez:
> > Looking at the circuit diagram for the vga2scart cable. at
> > http://vga2scart.gw90.de/cable/vga2scart/ What pins need to be
> > mapped on the scart to include also sound (for a complete vga+
> > stereo out > SCART cable)
> 
> I found an updated diagram at [1]. I hope it is what you wanted.

[Snip]

> [1] http://crashme.cx/vdr-portal-picts/VGA_SCART_RGB_NEWER.png

There's a schematic for a much simpler circuit for combining the sync at
. It also includes
pinout tables for connecting the rest of the video signal and audio.
HTH.

-- 
TH * http://www.realh.co.uk


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Re: [vdr] VGA2SCART: circuit diagram with audio pins (was: VDR with 50Hz clock output)

[Paul Menzel]

Am Montag, den 23.08.2010, 09:28 +0200 schrieb martinez:
> Looking at the circuit diagram for the vga2scart cable. at 
> http://vga2scart.gw90.de/cable/vga2scart/
> What pins need to be mapped on the scart to include also sound (for a 
> complete vga+ stereo out > SCART cable)

I found an updated diagram at [1]. I hope it is what you wanted.


Thanks,

Paul


[1] http://crashme.cx/vdr-portal-picts/VGA_SCART_RGB_NEWER.png


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