Plasma TV Problems Being Worked Out With Technology
In the early days of any new technology, there are usually a few bugs that have to be worked out and the same was true with early plasma TV. Problems with screen burn in and ghosting of images made many people question why they spent so much money for a unit that was going to go bad in a couple of years. Similar to the older cathode ray tube images that use a phosphorescent coating on the inside of the tube, plasma television also use gas on the screen to create the image.
This gas created the plasma TV problems of screen burn in if an image remained on the screen for a long time. Additionally, if the brightness controls were on their highest setting for an extended period, the images would begin to fade and appear muddy after only a couple of years. These problems, coupled with the initial high cost of the units made the plasma TV problems one of the reasons many people were slow to enhance the new units. However, technological advances have eliminated the majority of these issues, however they can sometimes still be found in older plasma televisions.
Plasma televisions are claimed to produce black in a true form, but one of the plasma TV problems suffered with such vivid colors is they may not seem as vibrant in bright ambient lighting. Essentially, they will provide a good picture over all, but may appear slightly less brilliant in a bright room.
Some Plasma TV Problems Cure Themselves
The occasional muddy image, caused by the watching programs with exceptionally high brightness usually disappears if the unit is turned off for an appropriate length of time. How long is dependent on the extent of the fading. One of the plasma TV problems being worked on by manufacturers is a slight warm-up requirement. The neon and xenon gases inside a plasma television need to reach a certain temperature in order to present a sharp image. Manufacturers are making progress in reducing the few seconds it may take for some of the units to warm up sufficiently to provide a neat instant-on picture.
Like most televisions, plasma TV problems are inherent to highly technical electronic devices and users without the proper training, experience and tools should heed the warning on the case about having no user serviceable parts inside. It will require a trained professional to perform any work on this costly electronic device.
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Paul Schuster @ 6:24 am
I have worked on electronics for over forty years and recently started repairing lcd and plasmas. I have a problem on a 50 inch LG .. LG50PX10 plasma. The picture is there and all the osd functions work, the contrast, brightness, color etc varies with adjustment, the picture can be seen but very faded.
I replaced the y sustain no change. I checked the voltages out of the lvps and they are 129, 60 and 5Volts DC. Without schematics I have no idea if the first two are correct. There is a logic board that has red/green led with one of the leds showing red.
Evidently the tv worked, a loud pop and then it faded.
The only obvious physical indications are on the back of the lvps there is a small black area on one of the soldered leads of a capacitor. There are no cold solder joints.
I have the tv in a cold basement, and when you first turn it on the picture that is there slowly “melts” together from patches of black.
Before I spend anymore money, can this be a bad plasma tube?
What do you suggest.
Also, check your posting on lcd vs plasma unless i read it wrong you are stating that an lcd is heavier than a plasma. This could be a mistake.
Also, i am setting up a web site.. tvtechme.com and with your permission I will link to yours.
Thanks
Paul Schuster