Greetings,

My 5-year old Pioneer Pro 530HD shows a couple of problematic signs.
The first is that gray has strong greenish tint in it. White and black look correct, but darker gray has more pronounced greenish tint than brighter gray. It is less pronounced in OTA HD materials through HDMI input, but more in OTA SD and DVD through component inputs. Even though primary colors (R, G, B) seem OK after the color and tint adjustment using DVE DVD, it does not make any difference in greenish gray.

The second is that the different levels of black in dark material cannot be distinguished. (so called black crunch?)

I wonder if the gray scale is the culprit for both, and would appreciate it very much if someone can help me find fix for them.

Greetings,

My 5-year old Pioneer Pro 530HD shows a couple of problematic signs.
The first is that gray has strong greenish tint in it. White and black look correct, but darker gray has more pronounced greenish tint than brighter gray. It is less pronounced in OTA HD materials through HDMI input, but more in OTA SD and DVD through component inputs. Even though primary colors (R, G, B) seem OK after the color and tint adjustment using DVE DVD, it does not make any difference in greenish gray.

The second is that the different levels of black in dark material cannot be distinguished. (so called black crunch?)

I wonder if the gray scale is the culprit for both, and would appreciate it very much if someone can help me find fix for them.

Your set's problem is indeed grayscale, but also it's probably in dire need of a professional grade optics cleaning by now. "Dire need" status starts around the third year of life, on triple gun CRT RPTV tech. The HV in these CRT driven sets causes the optics to become powerful dust magnets, and the Pioneers also need the deeper optics cleaning as well, under each lens pack.

The greenishness is from the grayscale being off, possibly right down to the Screen conrtols, which always causes darkening of the picture on the x10 series, 2 years older than yours. On the x10s, the Screen controls need to be rebalanced and the grayscale redone completely, to recapture the neutral untinted gunmetal grays the images are supposed to have, and to renew the overall light level of the picture. When this has been done, the good news is that the pictures you get from your set can be better than new - aside from the new set "sizzle" of enhanced light level on the new tubes that only lasts for 6 months anyway, under normal usage.

The grayscale drifts off over the years, just like the convergence does. All brands do in CRT tech, some brands worse than others. The Pioneers were some of the best looking OOB, but have some of the strongest need for recalibration later on in life, as the years progress.

The lack of detail in dark areas is from the optics being dirty. Plain and simple. Get them cleaned to a professional level and prepare to be impressed.

(vast understatement...!)

:p

Mr Bob

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