You sure there is no neck glow? Did you turn out the lights and look? Sometimes depending on the monitor, you really can't see it with the lights on.
First place to start would be with a flowchart for your particular monitor chassis. Make a post in the repair section...you know there's always someone here that can help.
Yeah, pitch dark check, saw no glow...
Just found this, and am reading it now:
http://forums.arcade-museum.com/showthread.php?t=134818






