On Mon, 8 Aug 2005 14:14:49 -0700, "sofie" wrote:

Darmok:
What you described is the posistor for the automatic degaussing circuit....
and it is suppose to get hot. When you first turn on your television you
will hear a whooshing noise... that is the degaussed working.... and when
the posister heats up it gradually reduces the power going to the degaussing
coils... then a relay will cut off all power to the degassing circuit. This
is NOT the cause for your television turning itself off, it has absolutely
nothing to do with your television's on/off operation other than degaussing.
I would still suspect faulty solder connections or maybe a heat sensitive
component in the other areas of circuitry, but in not the degaussing
circuitry.
You may want to go to the website for this newsgroup at
http://www.repairfaq.org/
there, with some searching, you can learn a lot about the degaussing circuit
and other things to look for in your quest to fix your television..... the
answers are there if you plan to spend some quality search time.

Confirmed that this is a PTC. Sheesh ... that damn thing gets SO HOT
that I can't even put a finger on it. Its a wonder the plastic case
doesn't melt.

Well, after more looking and reassembling, the set wouldn't even power
up. So I pulled the G board out (again) and looked at it under my 3x
magnifier light, and found 2 ICs with fractures in the lead solder.
One was IC653 in a TO-220 case, and the other was an 8 or 9
(staggered) lead IC that controls various voltages. I re-soldered
both of those, put the board back in, and it fired right up. Now I
have to see if those were the cause of it shutting itself down. Guess
I'll just have to leave it on while I'm home to see if it will drop
out.

Thanks