by VirtinsTech » Wed May 11, 2022 9:06 am
The problem may occur if the selected ADC and DAC devices do not match your actual device. You can go to [Setting]>[Restore to Factory Default] to select the correct ADC and DAC device. Alternatively, you can go to [Setting]>[ADC Device] and [Setting]>[DAC Device] to select the correct device. It looks like that the device you purchased is VT DSO-2820E instead of VT DSO-2820.