Picture comes on but has wavey lines. what could be causing this probblem

Go if model here is correct to menu and engage Convergence and advanced to pull up a grid of lines---are they 3d in some areas when this happens?

If you see separation of colors (red, green) in this wavey line most likely you have problem with convergence circuit. Two convergence amps have to be replaced. They located in a middle of the TV boards attached to big aluminum radiator and they part number starts with letters "STK".
I would recommend to let professional with this repair. Should cost you about $250-$300.
Regards.
Russ.

Howdy;
The "crackling noises" from the back is causing the picture to distort. 1) Either locate source of "noise" and correct or 2) Call a Service Company and get corrected. I would recommend that you DO NOT USE TV until this corrected. It may cause a fire inside your TV.

Good Luck, Big Irish.

For component 1 on the tv I just changed from 1080i to 480i on the Verizon Fios set top box and that corrected the problem...

what brand? could be a ground problem or bad crt

sounds like the blue tube is gone out

Ok I have had this same problem before sadly unless you now how to configure everything you will need to call a close repair man for it they come re-aline the colors But note: this is not free! i'm Sorry But this is the best i can do hope it helps

sometimes wavey lines can come from your cable or satelite connections because the wrong size cable was used or there is just a bad connection in the cable somewhere..

Sounds like your set has dried caps in the Power Supply, take it to a decent tech, its not something you should try to do yourself as dangerous voltages can still be present evn if the set is unplugged.

Check the main filter cap and B+ line.