DSO Nano v2 - Magic Smoke Released

Products & Technology DSO Nano
#1

Just got my brand new DSO nano v2 in a couple of days ago, and I have already managed to let out the magic smoke.

Apparently the probe was not securely in place when I placed the positive lead to a 2 AMP 12V line. I got a spark and then the nano just stopped operating.

It appears I fried the small controller/regulator on the batter and U9 (not sure what it is yet).

Anyone else have this problem? Anyone know what U9 is and where I can get a replacement? Anyone know how to replace the battery?

Any help would be greatly appreciated.

Thank you!

#2

the U9 is a 74HC125,just a Quad buffer/line driver,3-state,it is nothing to do with you DSO work status…
you should check the U4 and U5 instead.

#3

Hello,

are you sure you got the right port for the probe as the U9 (74HC125) is used as a line driver for the signal generator.

You can find the schematic for the V2 here: http://code.google.com/p/dsonano/

The Schematics:
http://code.google.com/p/dsonano/downloads/detail?name=DS0201%20V2.3%20Scheme.pdf