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.
Is the measurement data of the multimeter not displayed? Don't all the gears of the multimeter show? If there are other problems, please provide relevant videos for our better reference.
I have the same issue. Attached is a picture of the display. The Scope and AWG functions work fine. It is just the DMM has no value displayed, even 0. I have updated the firmware and the problem persists. I am willing to replace components if it is a hardware issue. I could not find any user replaceable fuses.
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I checked the crystal and it is definitely not operating correctly. Attached is an image of measuring it with another scope. I also couldn't detect any voltage across C46.
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Satur9 replied at 2023-7-6 23:57
I checked the crystal and it is definitely not operating correctly. Attached is an image of measurin ...
Dear Sir，You can replace a 4M crystal oscillator.
Test again for 1,2 in the figure below. 1 is DC voltage, 2 is AC voltage, see if this transformer has 3.5V.
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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.
Post time 2023-2-1 09:01:33
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Post time 2023-7-6 02:21:03