32' Samsung LCD Tv vertical bars on screen / sound

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Sounds like a panel fault. Contact the authorized service centre for Samsung, to confirm. Gopakumar Gopalan Google

I'm not too familiar with the LG brand, but if the onscreen stuff looks fine (Volume, menus, etc.) then the panel is OK. Try a picture source other than the one you are using now (Tuner, HDMI, VGA, etc.)

1) If it's the same across all of them, then you will need to replace the main board in the TV.

2a) If it only affects one input, it could either be your video source that is bad (which means TV is OK), or
2b) that certain input port on TV is bad, which would mean you either don't use that input any more, or you replace the main board in the TV.

hi;
when your LCD TV wont start , even if you press the power button , it has a power supply failure, maybe some capacitor has bloated or changed value, try to watch this http://www.youtube.com if you know how to solder, or even disassemble the back of LCD TV. if not try to call a repair technician. thanks ,, hope this help........

Vertical colors bars appearing and disappering are the causes by the board that call the T-CON board it is dying or the fiber optic cable that connected to it lose or damages internally.Mostly of the times about 99% of the times the T-CON board it is dying and it is not decodering pixels codes correctly anymore before it send those pictures pixels codes to the tv LCD screen panel.This T-CON board sit at the bottom in the middle of the tv LCD screen panel.Tries websites like Shopjimmy.com,Ebay.com to buy a new refurbish T-CON board for the replacement.

This is a "screen problem" Worth a try is to remove the LVDS lead at the screen end,..... take great care here, there are nomally two clips each end of the plug. and refit it.
Also the flat ribbon cables to the screen, again take care. Damage to the plugs can write off the panel
This normally causes vertical stripes or errors, but Iv'e had all sorts of strange effects with these leads

my colour is green why?

The problem is in the LCD controller board is overheated because the power supply unit is at the bottomof the TV and the heat rises upward to the vent on the top of the TV. You can verify that is hest problrm by running TV with the back removed and have a small fan blowing on the top secdtion of the TV where the LCD controller is. This how I fixed my scrambled picture after warm up (I added heat sinks to the IC on the LCD controller board) : http://s807.photobucket.com/albums/yy352/budm/LTV-32W3HD/
You can try it if the board was not badly damaged already by the heat. My has been running great for over a month now.

Your correct, LCD's don't burn. This sounds like a defective main control module. I would take it in as soon as possible to have it looked at.

Clean the connectors from the main to the Tcon along with the flat cables that go to the panel, next would be repalce the tcon board,if that doesn't fix it you may have a bad panel