color decoder solution

[D65]

Hey guys,

After having witnessed oversaturated colors on a pio 436 after isf calibration, I'm wondering what the best solution is...

I know that adjusting the color decoder is the best option, but this is, as far as I know, not an option on the pioneers.

The final solution is to desaturate the overall color, but this should be considered a last resort.

Is there something in between?

I used the 75% color bars with reference gray, and used the blue, green and red filters.
I first adjusted the color saturation using the blue filter and then moved on to the green filter. Apart from the blue, red and magenta boxes(which should almost be black when observing through the green), the cyan box is somewhat darker also, which should be equal in level.

Moving on to the red filter, the blue, green and cyan are black, and the rest should be equal, but here the magenta box is somewhat darker.

I'm under the impression that the reds are oversaturated, because I get sunburnt faces on both sd and hd material. Desaturating overall color does seem to help, but it takes about 8 steps down to take real effect...

What's the best option here?

Thanks,

Dimitri

[badbob]

My local dealer has a Pioneer plasma, I noticed excessive reds too. Sounds like typical red push (Toshiba CRT, RP and Sharp LCD had it too) In POTRC the red coats look so red just totally out of place

Reducing colour helps, of course it won't look as "colourful" but as avia says, reduction in colour is more acceptable than people's faces looking like tomatoes :)

Can you adjust individual red, green and blue in user menu? My LCD has R/G/B gain and offset, I believe gain is the colour decoder bit, and offset is overall levels. Adjusting offset makes greyscreen more or less red. Gain reduces or increases redness of the red bits.

[D65]

My local dealer has a Pioneer plasma, I noticed excessive reds too. Sounds like typical red push (Toshiba CRT, RP and Sharp LCD had it too) In POTRC the red coats look so red just totally out of place

Reducing colour helps, of course it won't look as "colourful" but as avia says, reduction in colour is more acceptable than people's faces looking like tomatoes :)

Can you adjust individual red, green and blue in user menu? My LCD has R/G/B gain and offset, I believe gain is the colour decoder bit, and offset is overall levels. Adjusting offset makes greyscreen more or less red. Gain reduces or increases redness of the red bits.


Hi bob,

Gains and offset's are both for grayscale, which isn't the problem here.

It's color decoding as far as I know, reducing color saturation seems to be the only solution here. Messing about with the primary colors isn't the answer on a pioneer. It totally messes up the grayscale, and you'll make it even worse...

Dimitri

[Nuno Santos]

Hi,

I've had similar situations with Pionner Plasma sets. Grayscale and gamma are spot on after calibration but I get burnt faces. It does seem like red push.... Did anyone come up with any way of getting rid of this?

Thanks!

NS

[D65]

Hi nuno,

It's an old thread I started and as far as I know it was due to something I had done in the service menu, which I shouldn't have...

The firmware of the pioneer had been set back to version three after this mistake, and that's when I suddenly noticed red push. But I contacted the pioneer service center, and they updated the firmware to version 7. which also includes an orbiter to prevent retention, which works pretty good.

As far as I know, the pioneers have no color decoder adjustments, you really don't need the service menu on a pio plasma.

In any normal situation you should have good color decoding on a pioneer to my knowledge. and no red push when calibrated to D65.

Dimitri

P.s. did you take the isf course in jan. 2007? in belgium?

[Nuno Santos]

Hi,

Thanks for the reply. :)

I was at the ISF course in London on June 2006, with Tom Vanthuyne.

The reason I ask is because I have had a calibration on 8 gen Pioneer (didn't need to go to the service menu) and although color tracking and decoding seemed quite well, I still found skin tones a bit redish... Can you understand why?

NS

[D65]

Nuno,

If you're using the blue filter method to set color luminance, you end up too high on a pioneer. maybe that's what's causing this. Too much color will make people's faces look unnatural.

It's the only thing I can think of...:confused:

Dimitri

[badbob]

It's really annoying, if you set with blue then the "general colour" is ok with blue, but then if your set has red push then it's still not right. Toshiba sets seem to have red push (CRT DTV and CRT RP) My XD1 Sharp and M86 Samsung too. Only my old Panasonic seemed to be have correct decoder (to my eyes) Noticed red push on Pioneer plasmas too, even with the settings provided on avforums.

Even if you have correct greyscale, if you still have red push it just looks wrong. Anyone with a Ferrari in red, or someone wearing all red clothes looks like just stepped out of nuclear reactor.

[Nuno Santos]

Nuno,

If you're using the blue filter method to set color luminance, you end up too high on a pioneer. maybe that's what's causing this. Too much color will make people's faces look unnatural.

It's the only thing I can think of...:confused:

Dimitri

Yup, that's how setup color... How do you setup color luminance on Pioneer plasmas?

Thanks.

NS

[Nuno Santos]

It's really annoying, if you set with blue then the "general colour" is ok with blue, but then if your set has red push then it's still not right. Toshiba sets seem to have red push (CRT DTV and CRT RP) My XD1 Sharp and M86 Samsung too. Only my old Panasonic seemed to be have correct decoder (to my eyes) Noticed red push on Pioneer plasmas too, even with the settings provided on avforums.

Even if you have correct greyscale, if you still have red push it just looks wrong. Anyone with a Ferrari in red, or someone wearing all red clothes looks like just stepped out of nuclear reactor.

I do find that generally Panasonic plasmas look pretty good after calibration, with great colors and natural skin tones. On Pionners though, that doesn't always happen and sometimes faces look a bit on the burnt side, even with a great greyscale (on measurements and to my eyes) and spot on color with blue filter.

NS