Question about LG 42PX5D 42 in. Plasma HDTV

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Poor quality picture

My plazma seems to have a pixelated / grainy picture - even on HD Channels. I have had the airel checked and signal strength is really good. The problem seems most apparant with moving images or flashing lights etc.

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Re: poor quality picture - LG 42PX5D 42 in. Plasma HDTV Flat Panel Televisions

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Posted on Nov 27, 2007

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Why is picture grainy?

Check the input signal strength. If it is weak, the picture ill be grainy [noise]. If the signal strength is OK, check and replace its tuner.

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Check the signal strength. If the signal strength is weak, this can happen to digital channels. For analogue channels, the fault due to weak signal will be a grainy picture.

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It is a recommended practice to repeat the channel search routine periodically as the DTV environment is subject to change. Also, the antenna connection to your TV may not provide sufficient signal strength to maintain picture quality. Even weather can be a factor.

Jan 16, 2014 | Flat Panel Televisions

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Sound breaks up on hd channels only

have you checked your signal strength HD channels need a really good signal. sound scan be affected if there is not the strength or quality.

Nov 24, 2012 | Sony BRAVIA KDL-46V3000 Television

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I have a Strong SRT 5066 Set top Box. I can't pick up any HD channels. Is this box HD compatible or do I need to buy a HD Box?

Just add the same problem. You need a HD set top box, supplied by your cable co. Your picture quality will depend on the strength of the HD signal. If you have correct box and signal, you may need to double click your remote select button to activate HD channels/

Jun 29, 2011 | Flat Panel Televisions

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Without HD content, the TV will scale up the smaller-sized video. This means it will "stretch" the content, making it grainy or pixelated. The only way to get better quality video is to get HD service.

Mar 06, 2011 | Dynex Flat Panel Televisions

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The channels 03-30 or so are very grainy and don't have a very clear picture. It seems like the higher the channel the better the picture. The cable is high quality HD cable straight from the tv to the...

If you are using the TV's tuner and an aerial, the aerial has a problem , (one of the reflectors/elements has come off or is bent) or the tuner unit has gone low gain at the lower frequencies.
Have a look outside at your aerial. Or there is a poor connection in the aerial system.
Hope that helps

Jan 02, 2011 | Dynex 32 in. LCD Flat-Panel HDTV

1 Answer

Pixellation on most channels

The pixellation on cable channels usually indicating poor/weak cable signal. You may want to have the cable signal strength check out by the cable company, check your cable connection at the entrance of the house to make sure they are clean and tight, try connect and disconnecting them. You are not the cable company cable box are you? My had to be replaced twice by Comcast, they were running very hot.

Jul 04, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

Recently purchased a Sony Bravia KDL37EX403 1080p 100HZ flat screen tv. The picture seems to be poorly defined, almost pixelated around the edges of figures and letters - sport is almost unwatchable with...

Your old TV was most likely a SD (Standard Definition) TV. SD signals look better on SD TV sets than they do on HD TV sets. This is normal. If you will, imagine having a tiny wallet photo reprinted as an 8"x10" photo. The image would be grainy and not have the crispness of the original. This is the same principle. Your SD source is being blown up to fill an HD screen. Once you add HD to your programming, the old TV will be forgotten. I hope this was helpful.

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