Purple Patches On Panasonic Tv Screen

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  • #ane of 11

murf633

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Danny Potato


How-do-you-do all,

I promise someone could help me, I have a rather old Panasonic LCD projector PT-AE100E, on information technology’south second bulb (1600 hours) and I can see a distinct royal sploge accross the bottom of the screen.

Has anybody encountered this?

Cheers

Murf

  • #2 of 11

Jim Mcc


It sounds like either a dust hulk or dead pixels. Have you lot been cleaning the filter regularly?

  • #three of 11

murf633

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Danny Murphy


Probably not equally regularly as I should!

What is the best course of action now?

ps. thanks for the reply

  • #iv of 11

Jim Mcc


Can you post a picture? I assume there’s no extended warranty?

  • #five of 11

Chris Gerhard

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Without seeing a movie of the problem, I tin can speculate information technology isn’t a dust blob only I guess in that location is a slim chance information technology is. I have seen this several times with the organic panel LCD projectors and what I believe it is is a bad LCD panel or blue polarizer and a fix isn’t easy. Information technology is not a expressionless pixel or group of bad pixels so hope for a dust on the LCD panels which can be cleaned. AVSForums has quite a lot of word well-nigh the problem. Models mentioned have been yours, the Panasonic PT-L300U, PT-L500U, Sanyo PLV-Z3 and others. There is a thread with a detailed discussion well-nigh how i possessor was able to repair his projector, I believe it was the PT-L300U, y’all may exist able to discover information technology if you do a search there. I take information technology bookmarked on another computer and can find it subsequently if yous don’t.

It was very common with Panasonic, Sanyo and other LCD projectors and unless I am mistaken, well-nigh often the fix is to buy a new projector. That is what I did. Newer LCD projectors use inorganic panels and let’s hope will be much ameliorate and avoid this very common problem. About 3,000 hours is when I have seen it often with the organic panel projectors.

Chris

  • #6 of 11

murf633

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Danny Murphy


Hi Chris/Jim,

I probably wouldn’t exist able to accept a effective enough motion-picture show and I guess that you have answered my question, it has in total about 6500hrs on information technology, I have had it for about vii or so years.

I have been lookin g at the Panasonic PT-AE400E 1080P, any comments?

Thanks again for your help everyone.

Murf

  • #7 of 11

Jim Mcc


The Pan. 4000 has gotten excellent reviews. Don’t you like DLP projectors? Or practise you lot demand the lens shift?

  • #viii of eleven

murf633

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Danny Murphy


I have simply always had this one, and I have been happy with information technology.
I don’t know anything well-nigh DLP projectors really, are they really that much better than LCD?

  • #9 of xi

Jim Mcc


Neither is “better”, merely I’yard a big DLP fan. I prefer the wait of DLP, and they accept less “potential” problems. You should try to locate a DLP projector to view, and see what you think. A very small % of people are affected past the “rainbow effect” with some DLP’s with slower color wheel speeds. Later viewing you will know if it affects you or a family menber. If y’all desire to play it safe and spend more money, buy an LCD.

  • #x of 11

Jason Charlton

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My projector is a DLP also. It’southward a couple of years quondam, but back when I was shopping for a projector I much preferred DLP’southward reduced “screen door consequence” when compared to LCD. The “pixels” of DLP are packed much closer together than traditional LCDs. In addition, DLPs generally had ameliorate black levels than similarly priced LCD models.

In the time since and so, many LCD projectors, the Panasonic models in particular, accept taken an approach to minimize screen door effect past “wobbling” the pixels ever so slightly to effectively blur the gaps between them. Apparantly, many folks swear that this is a very constructive solution.

In addition, the black level gap has been reduced greatly in the past yr or so with the introduction of active iris systems on LCD projectors (some early versions of iris systems were non likewise neat, but equally I understand it, they’ve gotten much better in the past twelvemonth).

Generally speaking, (and more than to Jim’south first mail, I believe) the main benefit of one technology over the other, IMO, has more to do with placement flexibility than actual performance benefits. DLP models are simply now starting to add together modest lens shift adequacy, while LCDs have pretty generous horizontal and vertical shift ranges.

If yous haven’t already, check out the reviews at projectorreviews.com. They give very detailed reviews and often include direct comparisons of like models in a dedicated “Competitors” section of the review. A wealth of data.

  • #11 of 11

murf633

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Danny Murphy


My thanks to all,

I will have alook at the link.

Thank you

Murf

Source: https://www.hometheaterforum.com/community/threads/strange-purple-patch-showing-on-my-lcd-projector.293228/