Plasma the audio went out but had picture , came home later and the pic was black none off the inputs work and there is a craking sound on the spreakers like when u have no radio station???

Replace the digital main board.

Make sure your tv is on the right input first of all. The newer flat panel lcds combine the componenent video (red , blue, green) with the composite video and audio (yellow, red, white). If your tv is on the component input then you hear audio from the composite input since the audio inputs (red, white) are shared. Look for a source or tv input button on your remote or the tv itself and try pressing this button unti you see a picture with sound.

power supply not working -- did you check internal fuses on board --? if everything checks alright - replace the power supply board

I am having the exact same problem right now. :(

This sounds to me that you blew a fuse, or something wrong with the mainboard. im no expert, by any means...Have you taken up the courage to open it up? there is about 40 screws, just draw diagrams and such where it goes.. also, there are 2 small screws by where the computer and dhmi digit port are (like your comp at home) AND also the nut on the coax. after this, it's home freee. power is right on top middle. check out my other post for pics of it...Hope this helps!

Hav 50 inch lg no pic but got sound wtf how do i fix it an there r 5 flashes b4 green light stayes on at the start

your bulb is connected to all the audio
the bulb blew out and you need to have it replace local cuircut city has a repair man on call for this

I have a 42" LG LCD TV and just experienced this today. Watching cable, then the screen went to black, but audio continued. I pressed the guide button on my remote and pic came on with my guide menu. But then went to black again 10sec later and has remained that way for nearly an hour. Tried switching off both cable box and TV, disconnecting and reconnecting cables, but no luck. Finally unplugged mains, waited a minute, then turned back on. Everything seems normal now after the reboot. Phew.

Hi!
what do you mean sir you have no picture but you have sounds?

I have samsung 40" LCD tv and it's happening the same thing. I turned it on and it last for 5 minutes and the screen went back but the audio is fine. I turned off and turned it back on it worked fine but an hour later it happen again.