I have had a few issues with the digital channels since I got my DSO quad. First the supplier on ebay never sent me digital probes.
Took 22 email’s to convince them I needed digital probes, I am now taking action against them for misleading advertising etc. In the mean time I purchased some from Seedstudio bazzar. I now have 4 digital probes.
I still cant get anything other than a square wave to display, and I have no ac/dc or voltage scale to adjust. Screen just shows – -- where ac/dc and voltage should be…
Am I doing something wrong? Or it there a fault with my device?