Join Date: Aug 2003
Location: Charlottesville, VA
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I hope I can help:
I've got a Panny DLP (Yes, I know, hold your horses..) that was displaying a similar problem, red(purple) banding in low-light, low-contrast scenes. Fog, clouds, indoor lights, etc. The local service guy told me it was "normal" for DLPs.
Obviously, that's a load of BS.
I arranged for an ISF calibration, thinking it could be handled by a color pro, much better than a board-swapping monkey (Factory authorized or not.)
Randy Thomlinson of "The Perfect Vision" came out and tweeked my colors to perfection. However, he noticed the problem as well, and was able to isolate it by displaying a grey ramp with low brightness (sorry for the non-tech description) and it was very obvious: a distinct red tint on one grey bar, and a distinct green tint in another.
It's also possible to reproduce this by turning the "color" adjustment all the way down in scenes with fog, dimly lit skintones, etc. Even with the set displaying "only" B&W, red and green bands will be visible.
It's an all inputs, all resolution, all settings (cinema, normal, etc..) From his $10,000 color generator, and any other source.
Several calls to Panasonic were fruitless.
Recently, a ran across a posting here, from a Panny DLP owner who managed to get his service guy to ADMIT there was a problem, and FIX it. It entailed replacing a board (TNP2AA185S: search on that term here for the history, if you like).
This is a problem with the color decoding, plain and simple. It is fixable (at least on the DLP). Keep after Panny until they address it.
I can't speak to the ants or snakes. I don't have either.
"When you were born, you cried and the world rejoiced. Live your life so that when you die, the world cries and you rejoice."
- Cherokee Expression