From: not@telling.you.invalid   
      
   petrus bitbyter  wrote:   
      
   > This kind of failure is pretty common especially with coils and   
   > transformers. In this components insulation tends to degrade partially over   
   > time, usually depending on the temperature. So a transformer may look liko   
   > te perform excellent while cold but fail when it grows warmer. Off course,   
   > other components may fail the same way sometimes. I'm afraid you to lack   
   > both skills and equipment to find out what component(s) are actually   
   > failing. Even well trianed and equipped professionals usually dislike this   
   > type of failures. And, you're right about the line output transformer.   
   > Hardly a chance to find a good replacement.   
      
   OK, I'll pull the monitor unit out again to at least give the main board a   
   close visual inspection. Just my luck that the monitor is the only part of   
   the machine that I haven't got a schematic for.   
      
   Thank you for your help. It probably saved me a lot of messing about with   
   sync signals.   
      
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