LED problem: Power Supply VS Battery

[azrael]

I recently built Doug Hammond's Hot Silicon design...from ulysses' vero layout. Great DIY design, great layout! Really gets some awesome fuzz tones.


My issue is that the circuit works fine with my Voodoo Labs power supply, but the LED does not light up.
If I plug in a battery, the LED lights up, but then the circuit does not work.

I used an RGB LED, with the Green and Blue turned on. Just wanted to see what it would do, kind of experimenting with these LEDs, not sure if I like them so far, haha.

Any particular reason this is happening?

[Minion]

Well I don"t know the curcuit but it sounds like the Battery is hooked up to the LED but not the curcuit and the power supply is hooked up the the curcuit but not the led ......

[azrael]

Actually, I don't have a battery snap attached to it. I plugged in a battery to the DC jack using a snap-to-2.1mm cable.

[sean k]

Do you have a protection diode on the 9V input?

Maybe your LED and battery snap are wired the wrong way but your power supply is right 

[azrael]

Again, no battery snap. I just attached a snap to a 9V plug, to see what would happen, and then LED lit up, but the circuit didn't work. I'm going to put in a non-RGB LED, see what happens.

[Cliff Schecht]

Have you looked at flipping the battery and LED polarity?