I have a rca 52" mod.# p52754at built in 12/ 1996. The problem is that after warming up the width of the picture expands or gets wider by several inches on each side. It is about the same as my newer TV width in the expand mode. Is this a common problem with a known repair? Don't want to put a lot of money in it. Am far from a TV tech but with instructions would feel comfortable tackling this problem if I had help.

I had model similar to this with this problem. There were 4 adjustment screws to aliagn the picture. As it got older I was adjusting more often. Finally got rid of it.

Where are these adjustment screws located?

Mine was on the rear of the TV. Lower side on left as looking at the rear side