Fragged RCA F26020WN

Model #F26020WN
Service #F26020WNF01
Serial #830621076
July 1988

Was visiting relatives recently and while watching this set (had actually fallen asleep) the picture went blooey.

Had nearly dozed off but was awoken by a sound similar to the degaussing when you turn it on. The picture displayed as below. Guess this never saw as much continuous hours of use until I ran it thru the wringer and that was the final blow to it.

Sometimes when I turn it off it won't! It took a couple of hits of the power button to make it shut down...weird! And when it does power down there's a strange squiggle of light only on the center of the screen (shaped a little like a question mark being whipped about). The other anomaly is that sometimes the raster loses all vertical and turns into a bright horizontal line.....needless to say I turned it off instantly when I saw that to prevent the screen from getting burnt.

Any ideas what may have failed.....is there a common failure to these models? The diagonal black bands in the upper right and lower left corners are a function of my camera and don't actually appear on the TV screen. Same thing applies to the moire pattern.
Thanks