7915 pinout on schematic incorrect?

[gyraf]

Again, it's a package pin numbering issue - see e.g. L7915CV datasheet, Pinout ,application circuits Negative Voltage Regulators - the pins are NOT always numbered 1-2-3 from left to right, but often 1-3-2: http://circuits.datasheetdir.com/39/L7900-pinout.jpg

/Jakob E.

 

[Newmarket]

Again, it's a package pin numbering issue - see e.g. L7915CV datasheet, Pinout ,application circuits Negative Voltage Regulators - the pins are NOT always numbered 1-2-3 from left to right, but often 1-3-2: http://circuits.datasheetdir.com/39/L7900-pinout.jpgView attachment 91797

/Jakob E.

And to add to the fun the pcb pattern is sometimes drawn from a "Bottom View" esp on the smaller TO-92 types !
Yes - I have been caught out previously

 

[BrianJSiegel]

Sounds good! Short from fuse to middle pin verifies the regulator pinout. There's a chance your -15V rails is working now - I'd give it a try and power it back on again.

I have -15V power rail! Sweet! Now I can actually checkout the rest of the circuit. Let you know what else I find, if anything...thanks again, you really helped me and took a ton of frustration out of the equation. Much appreciated.

 

[BrianJSiegel]

Again, it's a package pin numbering issue - see e.g. L7915CV datasheet, Pinout ,application circuits Negative Voltage Regulators - the pins are NOT always numbered 1-2-3 from left to right, but often 1-3-2: http://circuits.datasheetdir.com/39/L7900-pinout.jpgView attachment 91797

/Jakob E.

Yeah, I was actually completely unaware they can number pins like that. And that certainly matters lol. Thank you for the heads up
-Brian

 

[buckethead]

I have -15V power rail! Sweet! Now I can actually checkout the rest of the circuit. Let you know what else I find, if anything...thanks again, you really helped me and took a ton of frustration out of the equation. Much appreciated.

That's great to hear! Glad it worked out