I have a Hantek2D72 and was having a problem with it. After turning the device on there is no displayed measurement value on the screen, the only thing that is displayed is the connection diagram and the measurement type. i have updated the firmware on it and this did not fix the problem. any help is would be appreciated.
Hello, I have the same issue. Trying to measure the voltage of a 9V battery, yet the Hantek2D72 is just displaying 0L(pls check the enclosed photo).
Same thing for AC voltage measuring.I updated the firmware, yet the problem persists.
Can you please help to fix this issue
@Jing replaced the crystal with a 4MHz 18pF one and am still experiencing the issue. I borrowed another multimeter and measured the two outer terminals of position 1 on the transformer in your earlier image and there was 0V across them. Why would a transformer be fed 3.5V DC voltage?
I'm at a loss here. Not sure what components to replace. It definitely seems like some components that manage these oscillations have failed and need to be replaced. Without making a detailed schematic breakdown and modelling, I'm not sure which ones.