Tv screen turned blue

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
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If you wish to get some details; check the site linked here. Pull up older posts.Surf the site with patience.http://electronicshelponline.blogspot.com/
Disassemble procedure to many popular brand TVs and other devices are given in detail with illustrations.

If a 4 year old 32 inch set likely cheaper to replace than repair it assuming parts are even still available.

If the screen went dark blue, this is the way that sets mute the video to protect the tube. However If the screen is very bright blue with possibly blue lines going through the screen, either the blue gun in the CRT has failed which is unusual but can happen or the driver transistor/IC which drives the blue gun has gone short circuit. If you know how to use a meter, you can perform a comparison check by comparing say the red O/P TX with the blue O/P TX. Ian

we have no sound

if you have warranty work they will direct you to the service center you will need, I do not know of any bb that service tv's.

The bulls eye is what us TV repair guys call it. It is a perfect description. The tube is good. The automatic degausing circuit is not working because the black square thermistor D805 needs resoldering on the bottom of the board. You will find that a magnet will affect it, and a degaussing coil will make it look perfect for 1 week. Soldering the thermistor is a permanent solution.

Check the regulator and convergences ICs....accordianman

please let me know are you getting light on the screen or not.

so I can give you perfect solution

yes ,it sounds like screen adjustment or focus block, should be around $200- $325 to repair.