3405B stuck in AC coupling

Post any questions you may have about our current range of oscilloscopes
Post Reply
zmrbill
Newbie
Posts: 0
Joined: Sat Sep 20, 2014 12:41 am

3405B stuck in AC coupling

Post by zmrbill » Mon Apr 20, 2015 5:06 pm

Hi, my 3405B is stuck in AC coupling on all four channels. I will be sending it back for repair but I wanted to understand what part of the circuitry was fried and what caused the failure. At the time of the failure I was looking at a 28 VDC power supply and think that it might have been a related to how the scope/laptop was grounded versus the power supply. Anybody have any ideas?

Thanks in advance, Bill

Martyn
Site Admin
Site Admin
Posts: 3345
Joined: Fri Jun 10, 2011 8:15 am
Location: St. Neots

Re: 3405B stuck in AC coupling

Post by Martyn » Tue Apr 21, 2015 10:09 am

Please make sure that you contact support@picotech.com to obtain a returns number before sending the unit back
Martyn
Technical Support Manager

Post Reply