Question about Samsung PN42A450 Plasma TV

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I have a Samsung PN42A450 TV and on HD channels there is pixelation on up close images that are moving. For example during the superbowl whenever a player was up close the image would degrade, get boxy, till the camera panned back.

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Need to adjust some of voltage of Powwer Board & Y-Main Board.

But, you need to get service from a expert.

Posted on Feb 06, 2009

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I have a Samsung pn42a450 plasma tv when you push the on button you can hear it turn on but there's no picture or other sound


Hello,

That TV is covered under a class action settlement from Samsung due to power supply issues. You should be able to get the unit repaired free of charge by contacting Samsung. You can get more information about the class action settlement here:

http://www.ccl-la.com/blog/index.php/samsung-has-reached-a-settlement-in-class-action-lawsuit-over-faulty-tv-power-supplies/

Jul 18, 2012 | Samsung PN42A450 Plasma TV

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How to adjust TV for best picture


first reset your tv if you made some changes ,select dynamique mode bring down the backlighting 8 or 7 bring down colore a bit put hdmi black level to low , also your tv needs to be well connected are you using hdmi cables ? you must also to have good quality image configure your hd decoder (bell shaw ext ) in general the only configuration necessary in a decoder is to select the proper resolution for your tv .exp your tv is a 720 p or 1080 i you must select the same resolution in your decoder

Oct 13, 2011 | Samsung PN42A450 Plasma TV

1 Answer

I have a 47 inch Philips HD TV. I switched to FioS and for some reason, some channels come in very choppy or pixelated. It is not consistent but by analog TNT is fine but my HD TNT is pixelated. But my...


Long story short, it is not your fault. Your provider will blame you, TNT, will blame your provider, and both are wrong.

The most likely cause is HD TNT is not a "real" HD channel. It is probably an SD recording TNT is upscaling from SD to HD. This can occasional create a dirty HD signal being broadcasted. Some TVs have trouble decoding this signal and end up with pixelated images because the image has been pre-stretched to fix the format.

Temporary solution would be to change the resolution of you TV for just the TNT channel. Some TV will let you select a preferred mode for a channel. If you can do this, set it to 720p instead of 1080p or try 1080i for TNT to see if this improves the image.

Also make sure that only one tuner is altering the images you are receiving if you have a FIOS box. If it is processing the image image in any way (color correct, resolution, etc.) turn those features off and let the TV do it.

Apr 27, 2011 | Flat Panel Televisions

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How does it help to have a Full HD LCD TV?


Hi - welcome to Fixya,

There is no advantage in buying a Full HD (1080p) TV if you are only using it for watching TV. Currently, there are no Full HD television broadcasts and there are no plans to introduce any. All UK HD channels currently broadcast in 720p resolution whether they are on Sky, Freeview, or Freesat. Therefore, any TV that is described as 'HD ready' rather than 'Full HD' will display all HD channels at maximum quality or resolution.

The advantage of Full HD is when using them with Blu-ray DVD players, gaming systems, e.g. Sony Playstation, or for playback of media files from your PC. These systems output at 1080p / Full HD (but only when connected with an HDMi cable) and you would need a full HD TV in order to get the best quality / resolution from these systems. However, you don't need a Full HD TV to connect these devices as they can all display their output on a 720p HD Ready TV.

The main disadvantage of any HDTV (1080 or 720) is when watching standard definition (SD) broadcasts. Full HD TVs have 1080 horizontal display lines, but SD broadcasts only have 540 horizontal lines. When watching SD channels on an HD TV, the other 540 lines, i,e half of the picture, are being created by software within the TV - known as 'Upscaling'. Upscaling requires processing by the TV which takes time and fast motion can seem blurred or blocky/pixellated as a result. Higher end TVs have faster response times (0.5ms or less) which minimises the pixellation so this specification is important when selecting an HD TV for purchase.

Hope this helps.

Regards,
BElectric

Nov 18, 2010 | Samsung Flat Panel Televisions

1 Answer

Vizio pixelation in hd nt all channels


Usually a TV that pixelates only on some channels is a problem with the signal levels coming into the TV or the cable box. If you are using a cable box then definatley the signal is the issue..

Nov 11, 2009 | Vizio VA26L 26 in. LCD HDTV

1 Answer

I have a Samsung PN42A450 plasma tv. It just


U have Convergence prob.Go to menu setup look for covergence,see no convergence,U have an open Fuse it dead(FL231)located right side of the Flyback Transformer.There is 3 in a roll small brown rectangle looking caps,but they are Fuses,the one in the middle it dead.

Aug 23, 2009 | Flat Panel Televisions

1 Answer

Image gets pixelated and a black screen flashes


yes its a cable box problem, find the channel you are having more problems with,press guide in the cable box remote and you will see how the box where the video is will still have the problem and the guide with channels info its going to be clean,
100% weak signal
hdtvman

Jun 22, 2008 | Samsung LN-S4692D 46 in. LCD HDTV

1 Answer

Samsung TV flickering image


You seem to have what is called error diffusion. Either call samsung about it and arange service or do it on samsung.com. What kind of warranty do you have? Depending on your date of purchase you might be able to get samsung to help cover it or pay for it all.

Mar 09, 2008 | Samsung SP-S4243 Television

1 Answer

Coloured Pixels in or around black areas when watching TV


This is know as a diffusion issue. Most times this can be corrected with some minor alignment on the pots on the YSUS pwb. Sometimes the YSUS pwb has failed and will need to be replaced.

Feb 03, 2008 | Sansui HDPDP4200 42 in. HD-Ready Plasma...

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