From: bv@wjv.com   
      
   In article <461cccaf$0$90268$14726298@news.sunsite.dk>,   
   Knut  wrote:   
   >Hi   
   >   
   >As monitors/tubes are discussed at our TRS-80 list on yahoogroups I realized   
   >that I have no schematics for the Model I monitors and that they are not   
   >covered by the service manual for the Model I or any other document I know   
   >of.   
   >   
   >I did ask ther but I thought it would be a good thing to try asking here   
   >too.   
   >   
   >And - yes, I have checked on the usual suspects.   
   >   
   >I have no immediate need but it would be nice to have. I hope to keep my   
   >machines alive as long as possible.   
   >   
   >--   
   >Knut   
   >(swap see-sig with kr-lund for email)   
      
   You can keep your machines alive without the TRS-80 monitor if   
   you aren't worried about it looking the same.   
      
   The 5 PIN DIN that connects to the monitor has 3 signal lines.   
   There is a gnd, a 5 volt [as I recall] and a video.  You can   
   take the gnd and video and connect them to a phono plug and put   
   them into a video monitor.  I sold a few and the only complaint   
   I had was the 'black lines' in the text.  The user had gotten so   
   used to the over-driven blooming fuzzy model I text he hated   
   the higher definition of the TV monitor.  The 5V lines drives   
   the opto-isolator to keep the ungrounded monitor from affecting the   
   system.   
      
   That is a good replacement when the monitor gets really sick.   
      
   --   
   Bill Vermillion - bv @ wjv . com   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)