TV has sound,but picture not clear and in black and white. Model P42W46X

Contact any service technician. The The drum head might be dirty. If you know how to clean it, do the same. Electro help

your pitcher tube is going bad.

Vee, V, a Vee Cee Rrrrr ? Not a DVD?

If you are playing a VHS tape that should be color content and it's in Black and White ... well you could check the tracking control if there is one on that model. Otherwise it sounds pretty broken. Probably NWR. Not worth repair. Try Cleaning the heads with a cleaning tape???

There are 4 or 5 ribbon cables on the bottom or on one side, they control part of the plasma screen. Check the ribbon cable near the black lines. Unplug the ribbon cable and look for black chips on the underside of it, I think they say 100 on them, you need to resolder both ends on each chip. Should fix the black line issue.

if the lines covered the entiire screen, fist I would check to see if the TV's menu can be seen. If not then check the buffer boards. Next I would check the logic board

common problems with these, usually customers here a loud pop. then the screen goes blank. I would try...
Some of these have a 4 pin test on the control board that you can jump with solder to get test pattern. If you get it to do that then these boards maybe good and would replace the control board. if nothing happens, then
the upper & lower drive also the Ysus and Zsus boards all at the same time.
last could be a defective panel.
hope this helps. p/n are on all the boards.

It might be one of the power supplies. There are three in this model. One for the sound, one for the video, and one for the computer components. The video power supply is probably shot. They cost about $200 a peice from LG. If there was a "pop" sound when the video stoped, then it might be one of the circuit boards in the back. Yet again, they are three, each costing around $200 from LG.

Mine looks like too, but the line running across isn't on my set, picture looks like this, and the sound works fine. I took the tuner board all the way out and turned the set on and it did the same thing, then I unplugged the top wire on the board next to the tuner board and the screen went black. plugged it back in and the screen came back with the scrambled picture. Anyone know why? Bad mainboard maybe? the left of the tuner board?

check your connections again, if you have the audio and video reversed you will get this exact problem no video/ fuzzy video, and squealy noise out of only one speaker (other will likely sound correct) You're watching the sound channel, and listening to the video channel basically... hehe

well I recently took my tv to a tv repair shop and they told me i had to replace the Y board and a Driver board. All in all it set me back $550.00