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any sharp dlp users to help me?

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I've got a Sharp Z10000 series dlp that has component and DVI inputs. I've been using an outboard Runco scaler designed for DLP projectors (specifically for dlp). Recently, I bought a Denon 3910 dvd player and I've now compared component output (interlaced) through the Runco to a straight progressive signal from the Denon (HDMI to DVI using Van den Hul cable and adapter) to the projector. The old interlaced approach using component and the Runco has a better picture (sharper, richer colors).
Now one of the things I've noticed is that the Runco is outputting at 750p into the Sharp (when you switch inputs on the sharp, it shows the scanning resolution) but the Denon is only at 480p.
If I "force" the Denon to output 720p or 1080i, the picture on the Sharp dlp has what looks like green static lines scattered across the picture (but not for 480p).
Any suggestions or is this likely an incompatibility problem of the Denon with the Sharp dlp?
thanks in advance -- chris

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Try a different DVI-capable DVD player. I do vaguely recall a Meridian which would not upsample 480p to 720p DVI.... - oscar 20:07:34 11/22/05 (1)
and I thought it might be related to keeping the recording industry happy. I'm using a video processor which upsamples everything to the displays native resolution via DVI (720P for the Sharp 10K). There's even some fine adjustments on frequencies (nominal 60 Hz) to address slight variations in projectors but I don't know of any which might create the symptoms you describe.
Maybe when I find the time, I'll try to mess around with the processor to see if I can duplicate your symptoms.
- I switched back to component input with an outboard processor - chris e. 03:55:14 11/27/05 (0)
  I ended up just going back to my Runco DLP processor fed by the component output of the Denon 3910. It runs at 750p (not sure why this is the number but that's what I recall seeing on my Sharp when I change the inputs) and the picture beats the HDMI and DVI alternatives that only display at 480p (the 720p and 1080i options for the Denon show video noise on the HDMI adapter route and won't show up at all for a straight DVI-DVI connection).

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