I have a 60 inch rear projection RCA TV. It has a chassis number of
PTK195AC and is model P60812BL.

The day before yesterday it was working perfectly (as it has for 8
years). All of a sudden I walked into the room and it is black.
Turning it off, using the DVD and many other attempts to get a picture
failed.

I let it stay off for a while, then turned it on. It would have a
picture for a short time that looked like an old 60's horizontal hold
problem with a partial, shrunken picture. I would suspect some sort of
voltage problem. I have not had a TV problem in 30 years. I have not
called a TV repair man in memory. I have the user's manual AND a
service manual because I thought it would come in handy some day.

I called a TV repair fellow and he said he was familiar with this model
of RCA and that the typical repair bill was $250. I am pretty handy
with this type of thing (and an electrical engineer), so I thought that
before he came over and found that it was a simple thing like a fuse, I
would try to look at it myself.

Anyone have any ideas where to start?