Hi all,
I’ve started the build of the Yocto2 and followed the build guide. My problem is I don’t get the -15V from the output of the PSU as described (and not from the output pin of the 7915 either). Does anyone have any suggestion what could be wrong?
BTW the input voltage has to be higher than 15V to get an output of +15V (I’ve tried about 17V). I’ve double checked the orientation of components multiple times and I also have the R54 in place.
PSU: No -15V [SOLVED]
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Last edited by maglar on Aug 9th, '18, 07:33, edited 1 time in total.
Sorry folks! My electronics skills aren’t obviously very good. I started thinking about how the PSU works and realized it needs AC not DC 
I had by old habit just connected a standard dc adapter....
Very stupid, but perhaps I learned something out of it.
I had by old habit just connected a standard dc adapter....Very stupid, but perhaps I learned something out of it.