Out of curiosity, did something new happen about your problem ? Did you find a repair shop to look at it ?I made a video of what's happening. It's actually a little bit different from what I remember happening back when it broke, I seem to recall it was just a flash of light and then nothing. Today when I try to switch it on, it hisses at me and constantly tries to re-initialize/degauss the screen.
Here's the video:
If anyone has any ideas following the video, or wants me to try something (not like it does anything else, though...), I'd appreciate it!
Also, thanks for the link to the service manual. I'll have a look at it. I'm also gonna call around for some repair shops, maybe I'll get lucky and find someone with experience and willingness to repair a CRT.