Burned Sound card DS0201

So, was just trying DS0201 with my computers sound card playing some music, just to try it out. Thought it would be safe for the PC.

For some reason, about 10 seconds or so later, I saw no signal on DS0201, a flat line. Turns out, my sound card is blown. Now no audio output from it. The probe was at 1X.

Could this be possible, I thought the input impedance on DS0201 is high enough to prevent something like this!

The Input impedance of DSO201 is more than 500k. In other words, It is sufficiently large. About your problem, I think whether there has some wrong operation.