I have some trouble with my DSO138mini. It has been carefully soldered and checked twice… I obviously went through the useful docs:
https://jyetech.com/wp-content/uploads/ ... -guide.pdf
Screen show grid and settings. Settings change according to SW1, SW2, SW3 and push-buttons.
I can power DSO via USB port on digital board AND via +5V on analog board (had to solder jumper 4 though)
Trouble is that i dont get a trace, even when connecting the probe to "test terminal".
Here is what i get at best, with "test terminal" : spikes of a few mV
That's all i get, even when connecting probe to DC current.
Here are my readings:
Could someone be kind enough to point me toward some stuff to be checked?
Thanks a lot for reading.
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