Sencore LC102 "Short"

• Sencore LC102 "Short"
  Posted by ScottSerpa on 28 Mar, 2024 15:32
• I apparently posted this is the wrong forum (test equipment).  Sorry, newbie mistake.
  
  I have an LC102 that I purchased new many many moons ago.  I think I had it calibrated once by Sencore but other than that one time, it's been working fine.  All of a sudden the display reads "Short" when testing a capacitor or zeroing "Open".  I found L1 stuck, replaced it but that made no difference.  Additionally I found the 2N6557 shorted.  I replaced it with a NTE 171, but that also made no difference.  I read 51 Ohms at the BNC so it's not an input short.  I've seen others with this same issue, just wondering if anyone has found a solution.
  
  Thanks,
  Scott
  
  
• #1 Reply
  Posted by mawyatt on 28 Mar, 2024 15:45
• Locate a schematic and post, then we might be able to assist in helping locate the problem. Also images of the inside and PCB will help.
  
  Best,
• #2 Reply
  Posted by coromonadalix on 30 Mar, 2024 06:31
• schematics are at ko4bb  website