From: Daniel Kahlin (tlr_at_stacken.kth.se)
Date: 2005-11-27 22:30:15
On Sun, 27 Nov 2005, Daniel Kahlin wrote:
> On Sun, 27 Nov 2005, Nicolas Welte wrote:
>
>> Look here:
>>
>> http://people.freenet.de/x1541/gnd680.jpg
>>
>> I replaced R14 with 680 Ohms as well, plus I added an extra 680 Ohm
>> resistor to GND, from the junction between R14 and R16.
>
> Congratulations! :)
> I saw your description on forum64.de.
> I understand that you still think the picture is a bit dark. Did you try to
> replace R12 with 680 ohms aswell?
> I think it could fix that. By raising the black-level.
Didn't think before I wrote it, but that will actually lower the
black-level. Might be good though. I added simulations of your fixed DAC
on my page so you can see for your self.
I still don't understand why the Chroma DAC works acceptably, weird. :/
@Nicolas: Do you have a schematic of the NTSC video-mixer?
/Daniel
http://www.kahlin.net/daniel/dtv/
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