Greetings,
I have a 32" Panasonic TV. Model# is CT-27D108 and the chassis number
is AP338.

Sometime ago, it developed several lines that would appear in that top
quarter of the picture, that would gradually diminish then disappear
after awhile.

Now though, it randomly shuts off, then comes back on. Before it shuts
off, and as it's about to come back on, you can hear several clicking/
arcing noises - happening in quick succession.

Even though I knew squat about tv repair, I do understand electornics
so I took the back off and looked for any blown capacitors, blown
fuses, or scorches on the board. There was none. I cleaned out the
inside the best I could, then turned it back on - it ran for a bit,
then it started happened all over again.

At first it would shut off, then go back on within a minute or so, now
it'll power down, stay down 30 mins or so, then power back on - and
it's all random. Sometimes it works 8 hours straight, sometimes 8
minutes. It seems more stable in the middle of the night - 1-4am or
so, but I'm not sure if that have anything to do with it - looking for
any ideas on the cause of this or how I can go about troubleshooting
it further, thanks.