How to get signal back on screen?

Dave15621

I'm using a DSO4202C and going to 50mvper division sometimes Trace is so far up it can't be positioned with the knob back on screen.

Tektronix scopes have an offset to help. Is there an offset to use somewhere on this scope?

The only way I have gotten it to kind of work is set at coupling but that only works right after doing an auto sync, though loses the reference voltage at that point I think.
Any other ways?

Thanks

amy

Sir, sorry, I can't understand what you mean.
Maybe you can give us a video to explan.