>Does anyone know of a source for documentation on this monitor, it was popular   
   >on C128 systems. Ideally owners manual and service/schematics.   
      
   Somewhere I probably have the manual for my Thomson 4160.  It also had the   
   4-way switch on the front.  I cannot remember now what positions 1-3 did, but   
   position 4 is the setting I used with my 8088XT.  I can tell you that because   
   it is sitting right here.  :)  That position allowed for CGA color.  One of   
   the other 3 positions was some sort of color setting my XT did not support,   
   and the other two (one each) were for green and amber monochrome screens,   
   IIRC.  Those settings did work with the XT but I rarely used them.   
      
   If I find it, I will post my findings here.  I'd fire it up, but that'd not   
   really help you figure out what that one non-CGA compatable setting was for.   
      
   Mike   
      
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