When i turn on my T.V and watch a show, and then the sound sstarts going, it makes a zzzzzzzzz sound. It is fuzzy and i don't know what to do. I have my PS3 hooked up to it and i dont know if it is the tv or the PS3

get in menu and make sure speaker is on.

Try going into set up menu and look for a screen degauzing function or try setting the screen temp. to warmer or cooler.

check the fuses for the fuel pump then if its good check the wiring for the system.there is also a pump relay in the system to check,if there is no power to the tank unit then changing the pump is not going to fix the problem.

This could be that the Onboard Sound Card is turn on in the Basic Input Output Settings, these control wich devices start and run when you computer is first turned on. Commonly known as the BIOS there very often is a setting in there for the sound to come from the onboard sound card or the one installed seperately. You must access this setting when you first sstart your computer, and switch it to disable onboard sound.

Check that your mic settings in the Volume control is not maxed out. Turn the mic off and see if the fuzziness clears up.

It can be the T-CON board is over heated and goes out, it can also be the main board, you should try cooling the T-CON board when the picture gose out with electronic freeze spray for electronics troubleshooting to see if the picture will come back, need to narrow down the problem.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

Please post back what you find.

you might have an overheating problem- make sure you have adequate ventilation around your tv

Sounds like a convergence problem. Are you interested in fixing this yourself? If so you will need to know how to solder well and use a meter. I can assist you as much as you need through the process. If you post a picture of what the screen looks like we can know for sure what you have going on. If you call a repairman to fix it he will charge somewhere between $300-$500 to do the repair. Let me know if you need more help!

TIm Nolan

your surrounds are probably set too high and the the center set too low

Open the back cover and check any fuse blow in Y Sustain board or Z Sustain board. If you do find the fuse gone, replace the board. Good luck!