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[SOLVED] Issue getting -15v in PSU section

Posted: Aug 24th, '16, 16:41
by synaptech
Edit to remove images/summarize issue.

Original text:
Hey guys - I'm having an issue getting -15v at J8-5 before connecting to the main board.

I've gone through the schematics and it seems like everything after D110 shows 0v. (C91, C49, REG2, D96, C93, C141, D94)

I went over each solder point to make sure everything had a good connection, checked diode and capacitor polarity. Could it be the regulator itself?
Solution: You're likely as dumb as I am and have a 15VDC wallwart instead of 15VAC

Re: Issue getting -15v in PSU section

Posted: Aug 24th, '16, 17:14
by Data Jam
DC wallwart ?

Re: Issue getting -15v in PSU section

Posted: Aug 24th, '16, 20:41
by synaptech
Hahaha wow I'm an idiot, thanks Data Jam :)

Edit: Got lucky and had a spare Presonus 1A 16vac wall wart on hand. Getting -15v as expected now, thanks!