LG 65UH6030 14 monthes old, has sound and no video (no menu either). Led back lights are on and displays a darkish blue screen evenly.

SOURCE: Magnavox 47MF437B/37 No Picture Green LED Good Sound All Inputs

I have No Solution but I am so glad that I found this board saves me lots of trouble. I have the same model with the very same problem..I found this site about a class action suit against the company. If this is a True Statement, it appears that there is No Solution for this problem. Our set is a little over two years old. Lots of money for something that last no time.

P.Scarboro
NC

SOURCE: Visio p42hd, no picture

Yes it does sound like the mainboard. But we have to confirm. I will see if there is a service manual for this unit in my collection but do you think you can safely work on it? Have you worked on electronics before? The last thing I want is you hurting yourself trying to fix it. HV circuits are not to be messed with unless you know about them.

SOURCE: I have a vizio vz37l tv. When i turn it on the

its the main board...

SOURCE: I have an RCA TV

The fact that the screen illuminates properly and does not stay absolutely pitch black means that the backlights are working properly.

A faulty LCD Controller Board (or TCon board for short) could possibly cause the symptoms you describe. The Tcon board is usually located under its own RF shield and will have a large braided steel multiwire cable coming into the bottom of the board and several flat ribbon cables connected to the top by little plastic flip up connectors. A replacement board can be purchased on Ebay for around $70 plus shipping. See the following link for one example:


http://cgi.ebay.com/LCD-CONTROLLER-V320B1-L01-C-RCA-L32WD12-/360142646595?pt=LH_DefaultDomain_0&hash=item53da2cad43


Just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the item information at the website indicated.

Just don't buy any that say AS IS for their description of condition. That is EBay speak for broken.
Make sure they say TESTED FULLY WORKING in the item description.

The best way to be sure you are getting the right part is to open up your set and check the part number that is printed directly on the circuit board itself. Then look that part number up on the internet or type that number into the EBay search box.

Just typing in the model number of your TV will sometimes give you a few different part numbers so you have to confirm which part is in your particular set.

Make sure any part that you order online has exactly the same part number as the one you are replacing. Sometimes it it just the last few digits that are different and it can make a difference.

Here are some links to some excellent LCD Troubleshooting Guides from another expert (BUDMRTN) that you can read through and get an idea of the LCD repair process:


http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://www.fixya.com/support/r7406380-tv_training_manuals

http://s807.photobucket.com/albums/yy352/budm

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

Please leave a Thumbs Up rating on his pages if you find his guides helpful.

Please comment back here to this page if you have any details to add, have any questions, have difficulty accessing the links, or just require further general assistance and I will respond as soon as I see it.

Thank you very much and good luck.

Joe.

SOURCE: Sharp lc 32sh20u when power

WELL FOLKS I just FINALLY found what I have been searching for, I own a Sharp LC 32SH12U LCD TV that has begun to show problems with it's picture, Now it's sound is great no change..But it has gotten to the point that when i first turn it on all I get are three or four bright WHITE lines on the right side of the screen. They are a bout one third from the very corner of the screen.After it warms up for a while, MOST of the time it will just pop up and go to working just fine, that is what was giving it away to me that it HAD to be a something generally easy to fix, And in all of my searching I FINALLY found what I was looking for..Rite here on FixYA.com...There it was right thre in PLAIN ENGLISH..(( The T-CON BOARD )) Timing Control or LCD Controller..Board. on teh LCD panel Assembly, It transfers the image signal of the TTL and LVDS signal to specific TFT but What you all really NEED TO KNOW is JUST what is going on with your TV set when the T-CON Board is going bad, And I am about to tell you....So her ya go.. If you TV has any of these symptoms Well then I can pretty much say that your T-CON Board is bad or going bad...OK..If you have A Scrambled Picture,LINES,multiple Pictures Color smears, blotches, Rolling Pictures after warm up, Blown Surface mounted Fuse No Picture, Very Dark Screen almost like there is no backlight....Folks if your SHARP LCD TV is doing ANY of thsi then you just may need to replace your T-CON BOARD!!!! Hey it beats buying a new TV RIGHT!!!! GOOD LUCK FOLKS!!!!! I have already bought my replacement T-CON Board, as soon as I get it and install it I will let everyone know how it went!! PLEASE CROSS YOUR FINGER"S AND PRAY THAT THIS WORKS FOR US!!!! Thanks Wade in Eastman Georgia...