[Coco] Help: Magnavox 1CM135 Monitor

[Boisy G. Pitre]

I have a Magnavox 1CM135 RGB/Composite Monitor - this thing was working 
great, then all of a sudden stopped.  Now there is no picture.  Just a 
constant, high pitch squeal when you apply power.

Can any of you Monitor guys (Gene Heskett?) provide some insight as to 
what possibly may be wrong?  I don't have much expertise on diagnosing 
monitors, and before I pitch it to the curb, I want to make sure it 
isn't something simple or easy to fix.

Boisy