"general picture quality issue"

[Anonymous]

I’ve seen this twice now and am wondering what the cause might be. I can describe what I’m seeing best by saying that it looks like a low quality internet stream. Any gradient will look “blocky or chunky” and sometimes incurs colors where they in the noise that don’y look right. The first time a few months ago I was called in by a contractor that was taking over a job from another dealer that had a Runco projector that was a couple years old. I couldn’t figure out what the issue was and the contractor just decided to call Runco. The second time a friend asked me to give my opinion on a new Sharp LCD.

taking all input, but please don’t just guess if you have no idea 😉

Thanks

Topic

[Anonymous]

There is a thing called a color wheel index and depending on where it is set, banding or big gradients show up.

regards

[Anonymous]

Is that a DLP only thing (color wheel)? So not the issue on the LCD panel? Also is it something that I can adjust?

[Anonymous]

Usually a service menu thing. Remember … you are not a repairman … and expecting you to fix this is not realistic. But if you do … you get brownie points.

[Anonymous]

Is what you are talking about only for DLP? If so what could be the issue where I see it on the LCD panel.

That is what I told the projector client (call Runco), but I would like to be sure that’s the issue. As I was consulting for a dealer hourly, I tried multiple cable sources, resolutions, inputs etc. but still saw the issue.

thx,

[Anonymous]

What was the programming on the LCD? BD? Cable TV? If cable … could be the source …

What’s the term … lack of bit depth …

Regards

[Anonymous]

On the LCD U-Verse is the only available source, viewed many channels always the same. Lots of sources and resolutions on the Runco. While I know that broadcast is never a reference source I’d expect it to not look horrible as it doe sin this case.

[Anonymous]

And what do blu rays look like on it?

[Anonymous]

Going to pick up a player for them now, will report back this evening.

[Anonymous]

And this is where having a portable media player comes in handy. 🙂 $100 or less these days.

regards

[Anonymous]

Wasn’t able to try a new source yet. But, I did quickly calibrate the LCD last night just to see what the results would be and to test out Calman5 which i found to be faster and nicer to look at at least on a basic level. After adjusting the dr, sat, etc I got the thing looking as best i could with its single point rgb adjustment. Greyscale wasnt horrible to start but there was room for improvement. Red was very undersaturated and secondaries were way off also. The global Saturation and hue controls greatly improved this.

Post calibration I saw a lot less of the issues that were previously obvious. What is still there I think is weak processing in the set and Uverse compression but I can’t be sure until I see a bluray. Shadows are blocky and noisy but are now black and grey instead of taking on colors.

This is the first time that I’ve viewed Uverse to be honest and I “assumed” that it wouldn’t look that bad. I’ll post another update when I when I can get a reference source in place.

Michael, what is your recomendation for portable reference? Bd player or some sort of appliance with video stored on it? My laptop has an hdmi out but i don’t know how “reference” it is. Is that an option as I’ll always have it with me?

Thx for the input

[Anonymous]

Consider one of the WDTV devices … WDTV live … Live + … and so forth. These cheap boxes output reference video when set up right.

I use the original WDTV box that had no LAN input. The device has two USB inputs and I keep a micro USB stick plugged into it at all times. 16 GB of data on that so it includes all test patterns in both jpeg format and moving video. The USB stick is so small that it tucks away in the back of the unit and never has to be removed. It makes the thing a self contained HD reference source. I keep a lot of my HD clips on the device. Well, whatever 16 GB will hold.

Regards

[Author]

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