DSO5102p. Channel marker does not match the signal.

amy

easa replied at 2019-3-6 20:14
OK.
All this, of course, is good, but why in the second channel this problem does not exist to such ...

Sir, it could be that there's a resistance or a capacitor broken. It can't be judged accurately.

easa

Can this effect be caused by the leakage of the transistor Q101?
Since during cooling with the help of a liquid freezer spraying on D102 or Q101, the signal line shifts down from the channel marker, and accordingly, after warming up, rises.

amy

Sorry, we can't make a correct judgement.