Ok- just before we throW it out..
With the monitor unpluggged... take a rag and spray it with WD40 wipe the red lead off.
Let it dry for a while and plug it back in... there is a possibility that all of the dust ... has carbonized and the cable is arcing out to the tubes aquadag... by the way make sure the anode does not touch the tubes aquadag.
Just in case you don't know, the aquadag is the area on the bell of the tube that is sort of a powder texture - usualy grey in color. It is actualy the return/ground path for the tube.
After that you will likely still not have a picture???
But check for an orange glow in the neck.
If it is there increase the G2/screen control on the flyback to see if the screen lights up.
BY THE WAY- I DO THIS STUFF EVERY DAY ALL DAY--- SO SOME SAFETY WARNINGS.
BE SURE YOU ARE CONNECTED TO AN ISOLATION TRANSFORMER
DO NOT GO ANTWHERE THE "BLUE SPARK' - THIS IS HIGH VOLTAGE LIKELY AROUND 25000 VOLTS.
ALSO, IF THAT SPARK IS PRESENT IT MAY HAVE KNOCKED OUT THE GAME- DISCONNECT IT FROM THE MONITOR DOING ALL THIS.
Ok after that if the spark, and you have an orange neck glow, and after you turn the G2 up you have a lit screen (this is called raster)
We can move onto other things.
Good luck
Rick Nieman
Rick@niemandisplays.com
www.niemandisplays.com