LCD TV’s are in a league of their own, since we have been working on the newer lcd panels several things you need to know about these sets. First of all component level repair is virtually impossible. The same set with the same model number may have different components depending on where it was made. In most all the manufacturers sets that I have worked with, the serial number range will determine the parts needed for a repair. In general the reliability of lcd televisions seem to be very good. Out of warranty repairs are more expensive because of the board level repair, some service manuals don’t even come with a schematic any more, just a block diagram so you can determine which board is the culprit. In the latest generation of lcd tv’s they have condensed the circuitry down in most cases to about 3 smaller boards. Unfortunately though when they do fail they seem to fail big, many of my repairs have involved replacing the panel. Back in the days of the component repair I never purchased an extended warranty because I could always buy the small part and fix it for a very low cost. But now with the cost of the boards my own lcd set has an extended warranty.

  Sophisticated software has been designed to control these sets and software bugs are a problem. When you turn your tv off the computer is still running software. Similar to how a windows based pc will still be running when you log off the computer. Unplugging your tv may reboot the software but not in all cases. Some sets may require you to press several buttons to reboot the tv, similar to a (ctl)(alt)(del) command from your windows based computer. Some of the more common software problems that I am seeing are related to communications through the hdmi cable, some devices plugged into the hdmi may not function like you expect, but when you plug another device into the same hdmi port it will work fine. This could be a software related issue. I would like to note that if you are having issues with hdmi connectivity I would check other possibilities first. Software issues are not by any means first on the list of troubleshooting hdmi problems. In some cases, software issues will even prevent your tv from turning on.

First off we need to understand what a fuse is. A fuse is a safety device, primarily designed to protect something from fire or damage. A normal fuse is simply a small wire running from one electrode to another electrode and encapsulated in some kind of fire proof casing.
 
A fuse should not be confused with a circuit breaker. A circuit breaker has the same purpose as a fuse, but it can be re-set and used again. A fuse has to be replaced when it blows.
Fuses, especially ones found in a television, can be very deceiving and hard to find. They come in many shapes and sizes. Other components like; resistors, or coils, may also do double duty and act like  a fuse. This behavior is engineered into the component.

A fuse under normal conditions will allow the free flow of electricity to the circuit it is feeding. Normally, if everything is working correctly, the fuse has absolutely no effect on the circuit. If the circuit that the fuse is feeding draws too much current, the fuse wire will get very hot, very fast, causing the wire to disintegrate or burn open in one spot.  Once that wire has been broken, no electricity can pass through to the circuit beyond.
It is extremely rare that a fuse will blow without another problem causing it to blow. After all, that is its purpose. It is designed to blow if something else is wrong, especially in a TV or other appliance. If a fuse is blown in a TV, expect that you will need to fix it.

Most of us are used to dealing with fuses, or breakers, in our house. By replacing the fuse, we usually make it all better again. But when you think about it, the fuse only blew because you had the bathroom heater turned on at the same time you had the blow dryer turned on. So you overloaded the circuit. Again, you had to fix something to keep the fuse from blowing, like turning off the heater while you were blow-drying your hair. Replacing the fuse did not fix the problem. Turning off the heater fixed the problem. The fuse was a symptom of the problem. Inside the television you have no control over how much power is being used. So the reason that fuse blew is inside the TV it’s self.

 Power surges from lightning or power line transmission problems can cause a fuse to blow.  The abnormal voltage and current flows in this situation will usually do more damage to the TV, but in some rare cases the fuse is all that has blown. If an internal fuse has blown, it always has to do with a problem in the television.
 
When you replace the fuse, use the same amperage, because increasing the amperage does not help, it just allows the circuit more current, possibly causing a fire. If the circuit keeps blowing a fuse, you have a problem that needs to be addressed and resolved. Don’t mask a problem by trying a higher amperage fuse. This will only make your problem worse.

From time to time people have been upset because they feel that their tv or electronic device made by sony should have been re-called. In truth Sony will issue in-warranty maitnance repairs or recalls  that your device needs. If  you registered your product, they will usaly send you a letter outlining the problem and the required repair.  Not everyone will receive this letter.  Sony has a place on their website where you can type in your model number, and it will tell you of any recalls or other important information about your Sony product. I suggust that you visit this site before your warranty runs out. To see if any updates have been issued for your sony products click below. 

http://esupport.sony.com/?ref=http%3A//www.sony.com/index.php