Hi, I have 32 inch symphonic lcd tv how can I change the input without the original remote and there's black lines going down my screen how do I get rid of them thanks

SOURCE: 40 inch lcd blue line vertical

The display screen is made of a matrix of elements connected to cables along the side and top. On your unit, some of these many, tiny connections are making contact intermittantly thus losing the elements in that area. These contacts are held in place with just pressure and if that is disturbed, you lose that line of elements. Try squeezing the cabinet of the TV on the outside at the top in the area of the loss and see if that makes a difference. May have to go inside and see if the contact assembly is disturbed or warped or something.
Hope ya fix it!

SOURCE: remote control code for 32 inch lcd EMERSON TV

http://www.hifi-remote.com/ofa/codes-tv.shtml#tv t

SOURCE: Samsung 32 inch LCD delay in start up

I had a technician fix this exact problem today it is the POWER SUPPLY the TV is not getting enough power to the main board, i have been searching for weeks and no one ever post a solution here it is guys get them fixed $200 only

SOURCE: Vertical black line on the screen of my 42" Magnavox flat panel lcd tv

I wish I could post a solution, but I don't have one. I too have a Magnavox. About 6 months ago, once every 2 weeks or so, the screen would just go black- all but an inch or two on either side. Now, it seems like it's a weekly thing, sometimes every hour or two. As of tonight, it has happened twice in a matter of thirty minutes. It usually repairs itself if I turn it on and then off again but that's just not working anymore. If anyone has a solution, let me know.

SOURCE: 46 inch Sony flat panel lcd has vertical red and

If the screen works for a short while and then completely fails once the TV warms up you have a problem with the main unit video board or the LCD control logic board. Most often if the picture cuts out but audio continues to work the logic board is over heating and should be replaced. However if the picture cuts out and audio shuts off as well then its your video input board.