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Power supply no -15 Volt ground

Posted: Feb 11th, '17, 13:04
by Süd76137
Power supply
Ground to 5 Volt 4.963
Ground to 15 Volt 14,078v
Ground to -15volt 0 Volt. Why :(

https://pl.vc/1fffvw

https://pl.vc/1bnd68

Re: Power supply no -15 Volt ground

Posted: Feb 11th, '17, 13:29
by cso5
Check IC5 if it is soldered properly and also check diode orientation as well. IC5 is a 7915 negative voltage regulator. Start with that.

Re: Power supply no -15 Volt ground

Posted: Feb 11th, '17, 14:57
by Süd76137
The Diode orientation works alright like you can see on the board. And the Diodes are working like they Seouls. How can i check the ic5 or do I need a new one? Thanks for answering

Re: Power supply no -15 Volt ground

Posted: Feb 12th, '17, 16:28
by ikke
Probably using a DC wall wart. You need one with an AC output.

Re: Power supply no -15 Volt ground

Posted: Feb 15th, '17, 07:17
by cso5
Good point "ikke"
Sud76137 did you check your power supply is it 15V AC or is it 15v DC it should be AC.

Re: Power supply no -15 Volt ground

Posted: Feb 15th, '17, 07:18
by cso5
cso5 wrote:Good point "ikke"
Sud76137 did you check your power supply is it 15V AC or is it 15v DC it should be AC.
AS "ikke said

Re: Power supply no -15 Volt ground

Posted: Feb 16th, '17, 13:25
by cso5
Süd76137 how did you go??

Re: Power supply no -15 Volt ground

Posted: Jan 10th, '18, 14:25
by Süd76137
cso5 wrote:Süd76137 how did you go??
thank you very much for your support.
i love you guys