What causes the vertical lines to appear on the top of my screen. I have a 19" orion.(tv1929) The picture jumps at first, but will settle after a few minutes. The lines never go away.

There are parts called capacitors in the set's vertical output circuit that need to be replaced. The vertical output integrated circuit may also need replacement as well, since the bad caps can cause it to work overly hard. This is a pretty common problem, but I can't tell you specific part locations or values because I don't have a circuit diagram for this model. You might see if a service shop in your area (if there are any left!) can give an estimate for the repair. Or, given the low replacement cost for small TV sets, you might just use this as an excuse to buy a new small flat-screen model.

Sorry I can't be more specific, but maybe this will point you in the right direction. Thanks for using Fixya!