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/ Message was sent through the cbm-hackers mailing list
Archive generated by hypermail pre-2.1.8.