Category Archives: TV

TV related tech news

LCD TV Backlight Replacement

You just turned on your TV and suddenly the picture disappears just a second after it appeared, but you’re hearing the television program through the speakers. If this occurs, your LCD TV’s backlight has gone out. It is like a blown light bulb when you walk into a room, flip the switch and it suddenly blows.

And now you are wondering what to do next.

One of the most common issues responsible for LCD TV failure is backlight failure, but this is not a reason for you to replace your LCD TV. As a matter of fact, you can replace the backlight and do so affordably.

One way you can achieve LCD TV backlight replacement is to take the task on yourself or engage the services of a professional to do it for you, but there are times in which you can troubleshoot the issue on your own.


When the backlight goes, you can take on the task of replacing the inverter board if you can find the exact part. You can contact the manufacturer for this. If you cannot obtain the part, you may need to replace the entire LCD panel.

But you may notice that there may be a note on the back of your TV that says “no serviceable parts.” This doesn’t mean that it can’t be fixed. This simply means you may have difficulty finding the parts. Nevertheless, the job is usually as simple as removing the dead cathode and replacing it with a new inverter and tube. This is actually not as dangerous as opening up non-LCD TVs and trying to replace the parts.

As for what you invest in the task, it is possible for LCD TV backlight replacement to take about thirty minutes of your time and cost you as little as $20. Online outlets, school surplus, and stores selling new and/or used replacement parts are places you can buy what you need.

Take note that you may need to desolder and solder wires depending on the model of your television.


Being that the job of LCD TV backlight replacement can take less than 30 minutes of your life and cost you very little, it can be difficult considering a professional. However, not everyone is comfortable with taking their expensive LCD TV apart and desoldering, soldering, and putting in a replacement part.

A professional is able to find the part, take care of the installation, test it to make sure it is working, make it right if the TV is not working, and can offer some degree of a guarantee if the backlight fails within a certain amount of time. However, such a service does cost money and you must compare the cost of such a service to you buying a new television. If you find that buying a new television would be an option, then it would be worth you attempting the LCD TV backlight replacement on your own. If replacing the backlight on your own does not work, the amount of money you are out of is small and you can go forward with buying a new LCD TV.

Nevertheless, it may be worth attempting the replacement task on your own.

Swati is a freelancer, a work from home mom, who loves to write. She is a postgraduate in English and an MBA. She has written on practically every niche on the web. She writes articles, blogs, web pages, reports, press releases, product descriptions, eBooks, sales letters and newsletters. Visit Swati’s blog at now if you need content for your business or personal needs.

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LCD TV Or Plasma TV Picture Trouble? What Causes Solarization and Picture Problems? How to Fix It


It’s a much more common problem than many think. So, what does it look like?

There are many symptoms of this strange ailment but the most common are:

  • Faces on screen are blotchy as if sunburned, or a brown yellowish glow on the shiny areas.
  • Bright areas on the screen are tinged with a light yellow or brown.

Solarization: A phenomenon in photography in which the image recorded on a negative or on a photographic print is wholly or partially reversed in tone. (From Wikipedia)

  • Look at a color junk mail or color newspaper ad.
  • Look for an ad that shows a “sunburned” or sunburned effect on the persons face.
  • This is what you are looking for, the solarizing effect is very noticeable on faces.

The problem can be resolved if you get a Firmware Update for your LCD HDTV or Plasma HDTV

  • A firmware update is a microcode update for the chips inside your set.

You will need to contact your supplier or manufacturer for this update.

And you may need to contact their service agent for this, sometimes it is complex, and this depends on the brand.

As an example however, if you have a Samsung LCD HDTV or Plasma, certain models can be updated yourself!

What happens is that Samsung will send you a USB key with the firmware on it, and following the instructions:

  • You will be able to flash it or update it yourself!
  • Unfortunately, this does not always fix the solarization problem, but it is definitely worth a try.
  • Sometimes it is the fault of the station or network transmitting sub standard programming… Quality control?

Once it is updated, you can be sure that your set is working as well as it can…

Something you may be able to do if you have not yet bought a LCD HDTV or that Bargain Cheap LCD TV , is simply don’t buy a set that exhibits this problem.

  • How?

One quick way to check the quality of an LCD display panel:

  • Walk up to a set that is on display, stand up very close to it and look directly down or up at the screen
  • A good quality display panel will not change much, you won’t see any change in the quality of the image.
  • Cheap LCD TV sets with a lcd display panel that is prone to solarization, will look negative where the bright sections of the picture go darker, and the dark sections go brighter.
  • Or it will just lose color and picture quality.

… If you really want to buy a cheap lcd tv, leave it there and keep looking, good ones are out there ….Unfortunately with Plasma HDTV, it is more complex.

You will have to try a firmware update to resolve the problem.

And it may involve a call to your local Plasma and LCD service center.

Remember to quote your Brand and Model Number, these details are on the back of the set on a sticker.

And your date of purchase if the TV is under warranty.

And it will help also if you Google it.

You will be surprised how many hits you get on a particular brand and model.

Why haven’t HDTV buyers been told these facts?

HDTV. Info. FAQ.

Click Here

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