I have just installed the scope but seem to have some DC offsets. With CH1 shorted to the adjacent ground pin I get 392mV DC and with CH2 shorted 598mV. (open circuit , just the bare board nothing connected except the USB lead CH1 is 2.32V and CH2 1.97V).
The schematic shows adjustable R12 and R13 labelled as offsets and I have found these on the board. Is it okay to adjust these or do they do something else ?
The schematic shows adjustable R12 and R13 labelled as offsets and I have found these on the board. Is it okay to adjust these or do they do something else ?