Hi,
My DSO5102P doesn't turn on the screen, I checked the voltages from power supply and the 3.3 volts drop to 0,7 volts.
When I disconnect from the main board, the voltage comes back to 3.3 volts again in the power supply board.
I see few LM1117 connected after it but they looks OK, any idea what to check?
Any help is appreciated,
BR//Marco
Thanks for your comments!.
I measured the voltage but, in all three LM1117 the input voltage is 0,7 and the output is 0 volts... also I touch with my finger is any of them is heated but all are cold...
Is it possible to get some schematic?, might be something else that is causing this drop voltage ..a capacitor?, anyway, with an schematic might be easier to track the issue..
Thanks again
Post time 2018-11-27 00:35:24
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