From: uhclemLOSE.jun07@nemesis.lonestar.org   
      
   eugene  wrote:   
   : I have a Model IV whose text is really, really dim.  So dim that I can   
   : only see it in a dark room.  I took the monitor portion and plugged it   
   : into a different machine and it's crisp and clear and bright.  So,   
   : it's something on the motherboard?  I tried swapping out the   
   : brightness and contract potentiometers and that didn't help either.  I   
   : know absolutely nothing about the analog portion of the video on these   
   : machines so any clues would be greatly appreciated!  Greatly   
   : appreciated!   
      
   First, make sure the video cable connectors on both motherboard   
   and video driver board are making good contact.  In some machines,   
   this is the only problem with dim video or sync issues.   
      
   On some video boards, there is an internal brightness adjustment.   
   (This is the board in the lid).   
      
   With the contrast and brighness case controls at their maximium,   
   increasing the internal brightness will raise the overall brightness   
   floor considerably.  Once done, you can use the external brightness   
   and contrast adjustments to lower the level so you don't see the   
   raster and sync retraces.   
      
   You will have to examine the video board to find the control.   
   It is labeled.  Don't adjust any knobs without knowing what they   
   do!  If present, it is usually marked "INT BRIGHT" or "BRIGHT".   
      
   Depending on   
      
   Frank Durda IV - send mail to this address and remove the "LOSE":   
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