Ive owned a hps10 for about 2 years or more and it has always worked just fine until about a month ago when I was testing a friends amplifier but it was showing a distorted wave even when the scope wasnt hooked up to anything.
SO I decided to reset it and make sure it was calibrated but when setting it to 1v/div you can hardly see the square wave which never happened before. and if I zoom in at a smaller voltage/div the wave is twisted and not anything like I’ve seen the scope do before.
let me see if I can take a picture at both voltage settings.