From: ekblaw@vnet.ibm.com   
      
   On Monday, October 2, 2023 at 2:36:01 AM UTC-4, IBMMuseum wrote:   
   > I picked up absolutely NIB 5140 LCDs at Computer Reset two years ago, and   
   almost all look bad (Texas heat in the warehouse area) - If I find one that   
   works, I can send it your way. Otherwise, I was using a CRT 'slice',   
   Berg-to-DE9 dongle, then RGB2HDMI    
   converter to get a modern display (and video output I can capture, rather than   
   using my camcorder on that horrible screen). The LCD pinout is in the Tech Ref   
   at the 'Ardent-Tool'.   
      
   I did bend the metal tabs and took the frame off the display assembly, then I   
   found what I expected -- two long strips of "rubber" with conductive sections   
   that run along the top and bottom sides of the LCD which connect the PCB pads   
   with the LCD pads.     
   This was "the way it was done" in the early LCDs, but the industry moved away   
   from this connection design because the long-term reliability was poor.  My   
   odds of getting those to line up properly again are slim and none, and it   
   could well be that the    
   true fault is in one or more of the large Toshiba modules.  Greg included the   
   CRT slice (and printer and serial/parallel) in the box, and I have a PCjr CRT   
   display adapter dongle around here somewhere, plus I have a spare first   
   generation 5140 LCD with    
   one "dead line", so I've got options for the Convertible display.  Mostly I'm   
   trying to figure out if I want to move parts from Greg's 5140 into my second   
   5140 to make it "almost perfect", or do it the other way around.  My first   
   5140 has pretty much    
   everything except for the speech adapter, it's very nice.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)