Sjöström Audio DIY forum

Projects => Power supplies => Topic started by: eloes51 on September 08, 2019, 11:42:53 AM

Title: SSR03-15V LM431 Volt too low
Post by: eloes51 on September 08, 2019, 11:42:53 AM
Hi,

SSR03 board with OP, the rest soldered itself.
Plus volts 13.4V, minus volts 10.4V.
OP From PIN6 + V -6.5V
OP from -V + 3.5V.

All components checked twice.
Maybe components defective?

Please help!! :-(
Title: Re: SSR03-15V LM431 Volt too low
Post by: peranders on September 08, 2019, 04:14:04 PM
Are the sense inputs connected? Have you tin drops on J1-4?
Title: Re: SSR03-15V LM431 Volt too low
Post by: eloes51 on September 08, 2019, 05:16:26 PM
Hi,

Thanks for the tip.

I did not think that the AGND have no mass !!!