Comments on: What Retailers DonÃ¢â‚¬â„¢t Tell You About Microdisplay Rear Projectors (RPTVs)

By: Slim

Slim — Sat, 03 Jan 2009 05:19:40 +0000

Can anyone tell me what actually causes the blue dots on the screen when the light engine starts going bad on a rear projection tv. Is it a defect or contamination in the lenses, filters, and mirrors or is it in the electronics? I have a sony grand wega and I am seeing a very large amount of customers experiencing the same problem with the large cluster of blue dots. Some talk about dust contamination. I’ve taken the unit apart and only cleaned a few of the lenses I didn’t remove every mirror and lense but this did nothing. I’ve priced replacement units but before I replace it I’d like to understand what is going on with the “blue dots”.

By: Don

Don — Mon, 03 Nov 2008 07:28:49 +0000

I have a Mitsubishi WS 52527 (52″ LCD RPTV) that is less than 3 years old. I changed the bulb about three months ago. Recently, I noticed a sound coming out of the tv, kind of like the sound of a computer hard drive. The sound is not a constant pitch noise but varies. It goes away for a second during channel changes. Does anyone know what is causing this noise? I thought it might be the color wheel going out but this unit is LCD so there is no color wheel in it. Any advice would be greatly appreciated.
Don

By: Bob

Bob — Thu, 15 Feb 2007 20:50:21 +0000

Hey, great article HDGURU. Wish I had run across it before all of the hours of extensive research I’ve been doing. (Most of it before the post was made). At least it matches my conclusions, so that makes me feel better.

By: Mike

Mike — Fri, 02 Feb 2007 11:45:46 +0000

Since christmas I’ve enjoyed my 65″ Mitsu diamond without reservation as long as the PS3 or my PC is selected. DirecTV is better than fiber optic delivered cable to date. But Blu-ray and all 1080P content make this DLP purchase, also recessed into the wall, a no brainer. Disposalable income shortage, not cheapness, was final deal maker.

Spent about 6 to 7 hours shopping and doing my homework. For my basement DIY home theatre this best bang for the buck

By: jim

jim — Mon, 29 Jan 2007 23:14:59 +0000

Every single dlp hdtv set changes when you move around, period. the best one is sony sxrd or jvc hd-ila, all of them do…just your way of saying you were to cheap to buy the plasma! don’t give me that the pictur is just as good as crap!

By: don garrison

don garrison — Tue, 16 Jan 2007 06:10:13 +0000

Quick question. I’m about to buy a 50″ Panasonic TH50PX60U and I saw what I thought was the same tv at Costco for $400 less. But…the model number is TH50PX6U.
What are the differences and are they significant enough to matter?

Also, the Panasonic 50″ 600U is supposed to be a better tv but at Costco they say the tv comes without speakers and a stand? Is that correct?

thanks again for your great website. Don

By: James

James — Tue, 09 Jan 2007 14:57:37 +0000

I bought a Toshiba 56HMX96 56 inch DLP for Christmas and I absolutely love this TV. I went to all the big name stores and viewed dozens of TV’s. I finally subscribed to Consumer Reports for 1 month and found that the TV was rated very high (much higher than the Sonys). I have Comcast hooked up to it now but I continue to have problems with their equipment so my wife and I are going back to Direct TV. Thanks for a very good article and I really recommend this TV

By: Ben

Ben — Sat, 06 Jan 2007 09:14:07 +0000

OK. What I really have is a Question:
Pretend that I am a 7 year old child;
When I look at a TV screen (Standard) I see
hundreds of tiny dots red blue and green
about 20 lines accross and 20 down or 400 of each color,
1200 Total per square inch. I call this
(please forgive me if my technobable is wrong)
a standard “Dot Matrix” screen ?!
Now I have been looking in electronics stores
Circut C, “Fr, TheGoodG and BestB.at every kind
of HD TV and I have found only a few (4 units)that
do NOT have this “Dot Matrix” with as few more
as 22lines of res or 1450 psi to 24 lines of res
or 1728 Psi as a Student of neurophysiology
I can tell you that at ’6 to ’10 away beyond 1,100 grains Psi the human eye can no longer distinguish a difference if the difference is less than 2,000 grains Psi. So, if you have a TV that has less
than 3,000 grains (grid dots,Squares,Rectangles)
Psi then your eye wether you believe it or not
does NOT know the difference.The Color IS brighter but the detail is Exactly the same!
Here is my question: What is the difference in
technology, between the so called HD units that have a countable grid screen with a picture that is STILL broken up into visible tiny squares VS. the units that have NO visible
grid or “Dot Matrix” ??
Any help would be great Thank you!
Ben.

Continuous color has triads of red blue green , currently these are CRT direct view, Plasma, and LCD flat .Ã‚Â Coming soon sequential color LCD (no more red blue green triad). DLP rear projection currently has sequential color as well.

The HD GuruÃ‚Â

By: Bone Crusher

Bone Crusher — Thu, 04 Jan 2007 13:44:25 +0000

I am sorry to ask, but does anyone notices the “Silk Screen Effect” on these sets? That along with the bulb issue are reasons I would not purchase a DLP, LCD, LoCos RP set.

By: lee

lee — Wed, 03 Jan 2007 02:42:43 +0000

Jeff,

Just curious. What comments did you find misleading?