DSO138 3.3V test lead wrong voltage

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mmocz
Posts: 1
Joined: Sun Feb 18, 2018 9:29 am

DSO138 3.3V test lead wrong voltage

Post by mmocz »

Hi,

sth is wrong with my board and I am not sure what. I am getting a voltage of around 0.0xV from my 3.3V test lead. But still it seems like a square wave with the right frequency. I have probed other points on the board and all seem within the specs. Earlier I had no problem with the 3.3V test but suddenly it stopped working. Any idea what happened?

Thanks
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viewu
Posts: 13
Joined: Tue Feb 20, 2018 7:51 am

Re: DSO138 3.3V test lead wrong voltage

Post by viewu »

Did you short jp4 and test u3 pins?
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