LG 42LC3R 42 in. LCD TV "plasma picture goes" Questions

Sanyo plasma tv shows no picture. Picture comes on and goes off. Sound come on and goes off. check to see if your input signal is connected correctly.  Might not be a tight connection.

plasma tv picture goes on and off but always has sound My gateway 42" plasma works fine for 5-10 mins then I loose the picture after 10-20 mins it comes back on and then goes off again. Keeps ...

...Plasma, picture startes flashing then goes black after a few minutes Have a 42 in LG Plasma tv on my wall.. Couple of days ago the picture started "flashing" brightly, then all of a sudden the pictue ...

...plasma tv has no picture and no sound. When the power button is pushed the picture flashes and the screen goes black. Power light stays green but there is no picture. check the Y-sus and Z-sus ...

...plasma tv screen often goes black, sometimes only the bottom half. When I tap the side of the set, the full picture returns but the problem returns...... any advice/suggestions? You have a Ysus ...

...it on the back and the picture comes back, but only for a little while. You have a bad connection to the panel or bad caps on the boards. Not something for the DIY'er. High voltages in plasma

The "sound, but no picture" problem is common for plasma tv's. I fixed mine buy replacing both the Y-sustain board and the Z-sustain board. You can find both boards on ebay for around a total of $150

...Plasma TV has 2 vertical 4" lines at each end of picture?? This usually looks a little lighter in color than the rest of the picture?? IT looks like the lines that are visable during the commercial ...

Plasma TV Loss of picture after several hours viewing but sound continues. Picture starts to go into a "scrambled mode" then goes off Set needs to be taken in to repair shop this is not a fix it ...

...plasma tv goes black when warmed up. You can hit the back of the case and the picture comes back. Is it a dry joint or an ic problem on a board? TIA we ( technicians ) call it a cold solder or burnt ...