Lg 42px5d just sound no picture blank sereen

SOURCE: Connecting to PC

Hi Sarah, You may want to try lowering the resolution of your computer down first before connecting the 42PX5D. Since everything seems to be working except when you get to the desktop then your PC might be set to a resultion that's too high for the LG (am not 100% sure, but I think that LG's max res is 1024 X 768). Try to adjust your PC's resolution while still connected to a regular monitor, right click on any free/clear part of your desktop and click properties. Display Properties window will pop-up, click on Settings tab, adjust Screen resolution towards the left,trym lowest posiible, color quality, again lowest possible. Then hook it up to the LG. If desktop now displays in LG, do the same again but this time going up. Do it by increment and stop when LG screen goes blank. Press escape to go to setting prior to blank. Adjust color quality best setting acceptable to the LG. Good luck and hopes this work out for you. Regards.

SOURCE: SCREEN FOR LG 42PX5D 42 in.

I have dealt with Lg in the past regarding screens and they are unable to sell them as a spare as they are so expensive, they are only used in production and a complete new HD TV is cheaper to buy than a screen. for example LG37LP1D £900.00, a replacement screen £1500.00

SOURCE: lg lcd tv screen goes

I had this problem on my 42" Philips. Just got it yesterday and worked fine on the tv stand. As soon as I mounted the TV to the wall via wall mount system, I had the exact same issue you did. Figured it out today.

The wall mount was putting pressure against the center of the back of the tv (tv set had a slightly rounded back plate, and the mount was a flat plate). As soon as I put spacers (part of the wall mount hardware set) between the wall mount braket and the tv so there was no contact except at the mounting holes, the tv worked fine.

My theory is the pressure pushed the tv back plate against some board components which caused them to overheat (no air flow); or put pressure on internal connectors. I dont know.

Hope this helps, may not apply to your situation.

SOURCE: 42" LG Plasma tv, no picture - black screen, but have sound.

Most a likely a problem with your Y-Sustain board which will then not drive the screen giving a black picture. The fuse on the board may be open circuit & need replaced but most likely you will need to have the sustain board replaced.