On Fri, 25 Jan 2019 10:52:54 -0800 (PST), "Ron D."
wrote:


1. The adjustment only works in anything but x1 mode.

2. The adjustment corrects the squareness of a square wave. It makes the divider resistive.

3. Probes are designed for a certain input Z e.g. 1 M 22 || pf and freq response
Make sure the scope isn't 50 ohms.

4. For the adj, the scope should be DC coupled.

5. Scope could be in UNCAL mode. Freq or voltage.

6. Check voltage with a DC source. Freq: Try the AC line for frequency.
That DC couplng migt be the problem. It was mentioned in another post
too. Tomorrow I will check things again with the 'scope properly set
up and report back.
Thanks,
Eric