> the MSO adapter can accept low power signals up to 40v, but it offers no input protection when the host oscilloscope is off. Thus, if the DUT (Device Under Test) has a short of some kind near the area of probing, and the host oscilloscope is not powered, there's a good chance you've just damaged the Maxim MAX9201 comparators in the logic analyzer section of your scope! It's worth checking all 10 pins for voltages outside the MSO operational range.

Whoa, it's been a long time since I haven't used these tools but I learned now I was very lucky when using because I didn't knew this and didn't check the voltages when using the logic analyzer in the scope I had at the time from Tektronix - which I guess had the same type of limitations.