HDTV Forum

I have a Sony 50" RPTV that I purchased about five years ago. It has three LCD panels and has always had very good color and clarity. I replaced the burnt out bulb about three months ago and now I see a light yellow spot about six inches in diameter in the middle of the screen. This spot effects the color to a small extent, but is not really to noticable until the screen displays a white background. What gives? Any ideas?

Please provide a model number for clarity.

It sounds like the blue polarizer or blue LCD panel is bad... awaiting that model number...

Thanks Richard. The model number is KF-50WE610. I thought it was probably the center LCD panel or the color wheel. Please tell me I need a new TV. I need an excuse to get it by the wife.

While I have you on the line, Best Buy is running a sale on the Pioneer PDP-5020FD, with the Pioneer BDP-51FD Blu-ray and the Pioneer VSX-1018AH-K receiver with the Geek squad set up for $3,899.96. The Geek squad not withstanding and disregarding the price, what do you think of the TV, Blue-ray and receiver combination?

Thanks,

Ron

Only DLP uses a color wheel - all other MD technology uses fixed RGB filtering. Sony does not do DLP and sees that technology as a rival to beat using their SXRD LcOS version. Your TV is generic transmissive LCD.

I don't see anybody doing this for less than $850 and that is a dirt cheap price you will be hard pressed to find. Sony, like the rest, does not break down the light engine so it has to be replaced. I know of some people, a handful and not sure exactly who they are, who have been replacing the filter but it may be the panel in your case and that is simply not available.

So far Samsung is the only company that provides some of the component level parts for light engines yet even then, often times the cost of the part and labor to change it steers many a service center into simply replacing the engine if available.

So I guess there is your ticket to replacement...

The talk of the plasma town is Panasonic professional/commercial - I have not seen one in action nor tested one. Plasma has big problems with maintaining light output due to power supply issues and uses dynamic gamma to compensate. This is typical of consumer grade plasma product and the Pioneer line is no exception, standard or Kuro!

As always, if you are looking for video standards I recommend a pro and front projection is the route. these have remained at a peak for numerous years now and just seemingly continue to improve in one aspect or another for any of the MD technologies behind them. DLP remains my favored MD device due to the sharpness and clarity over others.

Single piece displays for consumer applications are in a low period at this time with any of the technologies suffering from one anomaly or the other; choose your poison. My personal favorite is LCD flat but regardless of manufacturer has motion problems.

Waveform 09A Motion Blur and 120hz LCD Frame Rate Processing
viewtopic.php?t=10552

I have a Mits LCD review in the wings but the editing to publish is back logged at the moment along with an OPPO review in front of it...

I am sure the Pioneer system is pleasing, dishing out quality in many areas, and only you can decide what direction you want to go in.

Thanks Richard, this pretty much confirms what I expected. I too am leaning toward LCD flatpanel. I may hold out for the new Samsung 950 55" with the LED backlighting. It is a little high now, but I expect they will come down after Thanksgiving or at least after Christmas.

Thanks again for your comments and advise.

Ron