Author Topic: Leader LBO-520 Dual Trace Oscilloscope issues  (Read 1603 times)

0 Members and 1 Guest are viewing this topic.

Offline YoshiKnuuckles

  • Contributor
  • Posts: 21
  • Country: us
Leader LBO-520 Dual Trace Oscilloscope issues
« on: October 25, 2015, 08:35:05 am »
I recently obtained this old scope and I'm having issues with it. Instead of trying to explain it, I decided to take a video of it's ailment.



I should probably give some background about myself, and the scope. I'm currently a first-year EET student who is attempting to set up a lab at home to supplement my college studies. This scope was something I picked up in a lot with some other old electronics, and it was basically free. I'm trying to troubleshoot what's wrong with it, but I have no clue where to start with this thing! Would be awesome to get it working properly again, I was hoping to use it as a learning starter scope.

Any help or guidance with this is appreciated. I should be capable of doing the rework on the unit myself. However, I need help determining what needs replaced, or if the unit is beyond economical repair (I doubt this is the case.)
 

Offline tautech

  • Super Contributor
  • ***
  • Posts: 14590
  • Country: nz
  • Taupaki Technologies Ltd. NZ Siglent Distributor
    • Taupaki Technologies Ltd.
Re: Leader LBO-520 Dual Trace Oscilloscope issues
« Reply #1 on: October 25, 2015, 08:43:17 am »
Welcome to the forum.

I've not watched your vid yet but a helpful pdf on CRO troubleshooting can be found in the Repair Links thread at the top of this board.
Avid Rabid Hobbyist
 

Offline oldway

  • Super Contributor
  • ***
  • Banned!
  • Posts: 2174
Re: Leader LBO-520 Dual Trace Oscilloscope issues
« Reply #2 on: October 25, 2015, 06:26:28 pm »
What about channel B ?
Does it work well or does it have the same problem as channal A ?
 

Offline YoshiKnuuckles

  • Contributor
  • Posts: 21
  • Country: us
Re: Leader LBO-520 Dual Trace Oscilloscope issues
« Reply #3 on: October 25, 2015, 09:30:54 pm »
Channel B shows almost all the same symptoms as Channel A. Both channels seem to function as they should, the only real issue with the scope is what I've shown.

I looked over the CRO troubleshooting guide, and I'm having a bit of trouble figuring out where to start. A lot of helpful information in there though.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf