UNI-T UT139S hangs/delay after each button pressed or mode changed / power on

• UNI-T UT139S hangs/delay after each button pressed or mode changed / power on
  Posted by BigMaxTs on 22 May, 2023 13:37
• Hi,
  I own a UT139S for a year and mostly use it at home. Last time I took it to measure something I found it makes a delay after every button I press of mode change or power on. The delay is around -+11 seconds every time.
  Teared it down and nothing looks suspicious to be honest. Replaced batteries and probes - same story.
  Made a video to demonstrate this problem:
  
  https://youtu.be/iIac8be_YOE
  
  Any help or advice would be highly appreciated.
  Thanks.
  
• #1 Reply
  Posted by indman on 23 May, 2023 09:15
• Cheсk and replace resonator quartz.