High Def Forum
Thank you for visiting. This is our website archive. Please visit our main website by clicking the logo above.

Comcast HD settings and Samsung DLP??

hdtvsucks
10-21-2004, 08:56 AM
I just had comcast hooked up with a HD motorola box. I have it hooked up to my Samsung DLP with DVI. The HD channels look great. Last nights Sox game was great. But I have trouble with the regular channels especially between 2 and 50. The picture looks bad (like it is moving around) and on the top of the screen (the picture does not quite fill the TV on these channels?) there is a line that looks like there is another picture right behind that one and you can only see the top.
My question is does anyone have experience with that problem?
Also, what settings should I set my motorola box to?
I currently have it set to 1080i. But there are 2 other settings that I do not know what to do with. Any help would be useful.
Before calling out comcast I wanted to see if there was anything I could do myself. Thanks.

wgift46
10-21-2004, 11:34 AM
I have had the same experiance. I would not call it a problem but inherent in the box. Channels below 100 ( or slightly higher ) I believe are analog and the 6208 does not give a quality signal down converting. What I did was to hook up a direct cable to the RF connection. The quality of the picture is great. Then to watch the digital channels including the HD channels I hooked up the component video to the TV and the audio to the AV reciever. At the very least I can record a HD program while watching an analog channel at the same time

Lanny
10-22-2004, 03:16 PM
Your TV is probably 720p native. My Sharp TV is also 720p native, but the TV does a better job of scaling 1080i to 720p than the Motorola box, so I leave it on 1080i for NBC, CBS, PBS, HBO ..etc. Although it's not all that convenient to switch the Motorola box (hopefully future firmware upgrades may offer a pas-through option), I switch it to 720p for ABC, ESPN, and Fox.

When I set the 4:3 setting to 480p and the 16:9 to 1080i, the Sharp has trouble synching back to 1080i after being on 480p. So, Ive found that using the 4:3 setting for, 480i or off is the best compromise.

One thing you might want to try:

When Comcast came to install my box, they didnt bring the promised DVI cables. They hooked it up with component cables. The picture looked beautiful, so I was curious to see how much better it looked with a DVI cable. But after I got a DVI cable, I found that although it looked good, the component cable connection offered better contrast, and the DVI connection had a slight bluish cast and a slight fuzziness that appears to be caused by a flickering effect. If I had started out with only the DVI cables, I probably would have been none the wiser. You might want to borrow some component cables and judge for yourself.

The DVI connections should, in theory, be better, but not in my case. Im still exploring the whys. Its either the TV or the Motorola box, or a combination of both.

One other annoying thing I noticed with the Sharp TV: when using the DVI connection, and switching from HDTV programming to non-HDTV programming, the viewing mode defaults to the stretched mode, necessitating my having to manually switch to the normal, pillar, viewing mode.

hdtvsucks
10-24-2004, 08:34 AM
Thanks for the good advice. I in fact did run the cable directly into the TV and into the Motorola box. That takes care of the bad picture on the analog channels.

Now does anyone know anything about the motorola box and audio output? I have regular wires going from box to TV. But I also wanted to run a wire from the box into my stereo receiver. Nothing happened? Can the motorola box support both at same time? Or were my connections bad?
Anyone with experience in this regard and some helpful insights would be appreciated.

Lanny
10-24-2004, 09:20 AM
I'm not sure what connections you've made, but I use Y connectors on the cable box audio outputs to feed both the TV and my VCR. I don't see why this wouldn't work with feeding your TV and receiver.

Y connector, one RCA male to two RCA females.