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Forums - General - DLP t.v question. I need answers!!!

I have a Samsung DLP t.v.  Last week I noticed couple of white dots on it and now have about 20 white dots.

A friend of mine looked at it and said that pixels are breaking down, but it's a DLP t.v.  I don't think it's pixels.

What can it be?  and what can I do to get rid of those white dots?  It's getting annoying.



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nobody knows the trouble I'm in.



Which model?

I have an 3D LED Samsung DLP TV for 2 years now...and while I've never seen anyting like this before, I can ask people that may know the answer...



looks like it might be a smaung dlp problem.

http://www.fixya.com/support/t709700-numerous_white_spots_smasung_dlp_tv

 

http://forums.cnet.com/5208-13973_102-0.html?threadID=325253



thranx said:

looks like it might be a smaung dlp problem.

http://www.fixya.com/support/t709700-numerous_white_spots_smasung_dlp_tv

 

http://forums.cnet.com/5208-13973_102-0.html?threadID=325253

thanks,

I'll call that number.  good to hear that i'm not the only one with this problem.



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DLP works by a grid of very tinny mirrors and a color wheel.

So let's say you have a 1080p TV. That grid will be a collection of mirrors that's 1920x1080. 

Let's now talk about each mirror.

Each mirror makes up one pixel. When you apply electricity to the mirror, it becomes translucent. When you don't apply power, it bounces light. There is a color wheel that spins and for an equal amount of time shines 5 colors onto that mirror. If the mirror is electrified, that light just hits the bottom of your TV. If it's not, the beam is bounced to your screen. The way they can change the color of that pixel, is by how much light for each color to bounce to the screen.

So for example, if you wanted pure red, they would only turn on the mirror for the time the red section of the color wheel is passing in front of the light, and the rest of the time they would turn it off. If they wanted to mix colors, they would only keep it on for a short time between whatever colors they needed to mix that color. If you want pure black, you never allow the mirror to be reflective ,and if you want pure white, you always keep that mirror on.

Each mirror in that grid is doing this for each pixel on the screen. For those 20 pixels on your TV, the mirror is not responding to the single being sent to it to turn off.

That's what's going on. I don't know if there is a software reset to fix this, or if you will need repairs.

 



TheRealMafoo said:

DLP works by a grid of very tinny mirrors and a color wheel.

So let's say you have a 1080p TV. That grid will be a collection of mirrors that's 1920x1080. 

Let's now talk about each mirror.

Each mirror makes up one pixel. When you apply electricity to the mirror, it becomes translucent. When you don't apply power, it bounces light. There is a color wheel that spins and for an equal amount of time shines 5 colors onto that mirror. If the mirror is electrified, that light just hits the bottom of your TV. If it's not, the beam is bounced to your screen. The way they can change the color of that pixel, is by how much light for each color to bounce to the screen.

So for example, if you wanted pure red, they would only turn on the mirror for the time the red section of the color wheel is passing in front of the light, and the rest of the time they would turn it off. If they wanted to mix colors, they would only keep it on for a short time between whatever colors they needed to mix that color. If you want pure black, you never allow the mirror to be reflective ,and if you want pure white, you always keep that mirror on.

Each mirror in that grid is doing this for each pixel on the screen. For those 20 pixels on your TV, the mirror is not responding to the single being sent to it to turn off.

That's what's going on. I don't know if there is a software reset to fix this, or if you will need repairs.

 

Did you just pull that out of your head?  Impressive.

I called the number and they are sending someone next week to fix it. 

It is the DMV chip that will be replaced, and they will pay for it.



Coca-Cola said:

Did you just pull that out of your head?  Impressive.

I called the number and they are sending someone next week to fix it. 

It is the DMV chip that will be replaced, and they will pay for it.


Yea, thanks :)

Cool that they are fixing it for free. I assume it's under warranty, or is it a recall item?



TheRealMafoo said:
Coca-Cola said:

Did you just pull that out of your head?  Impressive.

I called the number and they are sending someone next week to fix it. 

It is the DMV chip that will be replaced, and they will pay for it.


Yea, thanks :)

Cool that they are fixing it for free. I assume it's under warranty, or is it a recall item?

think it's a recall.  The person on the phone knew exactly what the problem was.  They will place the DMV chip but if there's other problems, then they will charge me. 





Coca-Cola said:
TheRealMafoo said:
Coca-Cola said:

Did you just pull that out of your head?  Impressive.

I called the number and they are sending someone next week to fix it. 

It is the DMV chip that will be replaced, and they will pay for it.


Yea, thanks :)

Cool that they are fixing it for free. I assume it's under warranty, or is it a recall item?

think it's a recall.  The person on the phone knew exactly what the problem was.  They will place the DMV chip but if there's other problems, then they will charge me. 



How old is your DLP to still have warranty?

If my LED light engine dies on my DLP I may as well throw it out...1000 bucks.