Question about Sanyo DP46849 46 in. HDTV

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Can dark smudged look on screen be a pixel issue?

Looks like a dirty smudged screen, but some light backgrounds are clear and some look as if the screen has been smudged by an improper chemical cleaner? Could this be a pixel issue? I have only cleaned it once or twice and I used the proper screen cleaner. Also, it takes several clicks to turn the set on and off even though I have fresh batteries in the remote.

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Might be. Contact any service technician and make it confirm.

Posted on Apr 30, 2013

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Posted on Jan 02, 2017

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Why the white or black spot on LCD Display


Dead and Stuck Pixels <br /> Pixel defects for an LCD monitor are defined as one of two types: dead or stuck. Technically, both types of pixel defects are stuck pixels but it really deals with the electrical currents and the state of each pixel or sub-pixel. <br /> A dead pixel is defined as a pixel or set of sub-pixels that has failed and is permanently in the off position. This condition means that the pixel will not let any light through. This can be observed as a dark or black spot on a brightly colored or white background. <br /> A stuck pixel is defined as a pixel or sub-pixel that has failed and is permanently in the on position. This can be either with a single or multiple sub-pixels for a given pixel and is best observed on a dark or black background. A white pixel means all three sub-pixels have failed while a green, red or blue pixel means one of the sub-pixels has failed. <br /> Hope this helps, if so do rate the Tip

on Jan 16, 2011 | Televison & Video

1 Answer

The screen looks like it has stars in the background.


It sounds either like an issue with the optical light engine or less likely with the main digital board----

Mar 19, 2012 | Hitachi 60VS810 60" Rear Projection...

1 Answer

My brand new LG 37' Led/Lcd t.v. had four very light white spots that you can see in the background what causes this?


Hello
Dead and Stuck Pixels
Pixel defects for an LCD monitor are defined as one of two types: dead or stuck. Technically, both types of pixel defects are stuck pixels but it really deals with the electrical currents and the state of each pixel or sub-pixel.
A dead pixel is defined as a pixel or set of sub-pixels that has failed and is permanently in the off position. This condition means that the pixel will not let any light through. This can be observed as a dark or black spot on a brightly colored or white background.
A stuck pixel is defined as a pixel or sub-pixel that has failed and is permanently in the on position. This can be either with a single or multiple sub-pixels for a given pixel and is best observed on a dark or black background. A white pixel means all three sub-pixels have failed while a green, red or blue pixel means one of the sub-pixels has failed.
Hope this helps, if so do rate the solution

Jan 16, 2011 | LG 37LC7D 37 in. LCD HDTV

1 Answer

I have a HL-T5656W DLP TV and i just changed the lamp and now i have some white smudges in a few places but only when the screen is dark or black. I called where i got the lamp from and they said it has...


Hello,
There is a slight possibility that one of the mirrors inside your tv got dirty from someone touching it when the lamp was changed. If you want to get into it, you would have to pull the back of the tv off and take a look to see if thats the case. If you do find that its dirty, use an lcd wipe to clean it.
Good Luck

Jan 07, 2011 | Samsung DLP HL-P5663W 56" TV

1 Answer

LCD TV has dark smears on picture


This not repairable,it a LCD screen have minor pixels cracks in the LCD screen itself,some body hit the LCD Screen with somethings.

Jan 12, 2010 | Panasonic VIERA TX-26LXD80 26 in. HD-Ready...

1 Answer

?Smudge on lens maybe? Shows up in pictures.


Hi!
Does the smudge changes / mooves as you zoom the lens? If so, the smudge is most likely on the focus lens, if not, there's something on the CCD. In both cases the lens will have to be taken apart and cleaned by a professional. I suggest you contact a local repair shop and see how much they ask for it.

Tom

Oct 09, 2009 | Canon PowerShot SD780 IS / IXUS 100 IS...

1 Answer

Have two dark smudges on screen


Dear Chaplink,

You said "two dark smudges on monitor screen".

Asumming that these smudges are digital and not just something tata you can remove with cleaner, If your moniter is back-projecting then the issue is probably that the projector has been damaged.

If your monitor is a flat-screen then the gels inside of it are misplaced from somone touching and damaging your screen.

So basically, the only practical thing you can do is buy a new monitor.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
If i have been helpful, then please give me a positive rating.

Jul 04, 2009 | NEC MultiSync LCD2170NX-BK - flat panel...

1 Answer

Red lighting in background of photo


Many digital cameras have different settings for the background color, my Samsung L200 for example has a setting that will make the pictures normal, black and white, sepia OR have a red, blue or green tint....you may want to check those settings... Otherwise... check to ensure the lense itself is not smudged... I have seen a smudged/dirty lense cause a similar issue.. what type of camera is it??

Feb 15, 2009 | Samsung L200 Digital Camera

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