Cost to repair popped ic

Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/ Before replacing it, try a reset to this set, and then check.
There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here...

Take a look at the image in the link. It looks like the on - off toggle switch is on the top left hand side by the connections. You can see the writing, on and off. Next to the power cord in socket.
http://ww2.justanswer.com/uploads/LO/LOAJ3256/2012-11-12_011125_2012-11-11_2010.png

http://ww2.justanswer.com/uploads/LO/LOAJ3256/2012-11-12_011125_2012-11-11_2010.png

Find a seller of the product and ask them

Find a Proview dealer and ask them for one

Check the speaker/s first. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

Possibly a printed circuit board gone in it,recommend a TV repair man have a look.

If you have any vertical lines appearing in a LCD flat panel TV, you are looking a defect in the panel itself. If you no longer have any kind of warranty you are best to watch the TV as is and save your money towards a new TV as the LCD panels will cost in most cases twice the amount that you paid for the TV brand new.

Digital brd has a heat related problem..If you did not get a extended warranty then it could be cheaper to just replace the TV...

Pat I do not know if you have a warranty you were required to retain the receipt from the store for the length of the warranty period to prove you have one ,also it is a good idea to register with the company on their website so they have a record of your tv and model, with your name and therefore the warranty they have included if any.LCD tv's are one of the most unsupported mass marketing consumer items that are being dumped on the US market. I think you have Blown capacitors, or more likely a problem with the power board, typically this requires soldering new capacitors onto the power board after unsoldering the blow ones and if this is all the problem is the issue will disappear, if there is an issue with a transformer, or some diode or computer chip then you might as well replace the whole power board. the capacitor issue is no big deal if you can get an electronics service center to look at the problem.

as you are using the ch3 , have you previously scanned and locked in all the channels for cable,