zapdbf's blog

    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.

There has been a large amount of chatter on Techlore about Sony convergence ic problems. Luckily Most Sony projection tv's no matter what model you have should be similar to my explanation below, Since Sony rarely fully re-engineers a tv what I am about to say will apply to most Sony projection TV's.  A service manual is generally not needed to perform the repair.

 WARNING! If you don't have any electronic experience this is not for you, I assume no liability for any harm that may come to you or your tv. Perform this procedure totally at your own risk. High Voltages exist in your tv and on the boards I am going to talk about, and can have high voltages on them even after the tv is unplugged.

What has happened to your tv: