what is L3 spec?

L3 of my DSO nano v2 is burn out.

I don’t know what is the reason and when it was burnt.

So I can’t recharge DSO nano. Just after I turn it on, the display start to dimming and go black in seconds.

I want to know what is L3, in order to displace it.


Only guessing here. I think its 100uH just like the rest.

I was thinking about your problem today and here are my thoughts. The reasons why I think an inductor could burn up are short in circuit, too much current through it or its made with a defect.

What I would do is see the current draw through the inductor circuit. Also see if the USB vcc and ground are shorted could be due to bad charger chip.

Thank you
I’ll try to replace it