20 Most Recent LG 42LH30 42 in. LCD TV Questions & Answers

Fault with main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

I know this sounds strange but try twisting the tv frame back and forth. Once upon a time it worked for me.

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/ Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Parts can be had at shopjimmy's web site.

There are 4 screws found in the center bottom of rear plastic back. 2 at top and 2 at bottom - approx 1/2 inch from bottom the 1st 2 will be about 3 inches apart - then directly above there are 2 more. These screws hold the bracket that holds the stand. Once you remove the bracket there should be no parts sticking out further than the actual television and can now be mounted to the wall with a mounting system.

In such cases it is the TCON board which is found to be responsible most of the times.

There is nothing you can do about it by yourself. Consult some qualified technician or service center .

A clear proof to some loose soldered point at its circuit board, or a loose contact with some cables. You should check and find which one causes the fault.

how about the backlight have you been check if some parts are not working or need replacement.