This is a common problem. There are electronic devices inside the television that go bad over time. The cause of your set's problem is very likely due to some electrolytic capacitors drying up in the scanning circuitry. Again this is very common, and usually happens when the set is many years old.
I have a set that I purchased at Sears back in 1989 and last year it did the same thing. With analog television going away in February 2008, I didn't want to by another television rite now (this one is in my son's room) so I chose to repair it. I replaced the capacitors in the horizontal and vertical output sections, and now it is as good as new.
It is hard to find a repair shop these days to repair televisions, since they are so cheap to buy, but if you could find one, the repair would only take about an hour, and the parts would be very cheap. Repairing my own only cost me about $5 for the parts themselves.
Good Luck
|