Ep booster HELP

[Cbecerragidson]

I accidentally connected a negative tipped cable from PP2 power supply to my EP booster.
Now it has a loud HUM when i use it by itself or on pedalboard
It seems like the pedal works but the LED turns on only at times when engaged.
With power, the HUM is louder than with battery but it is still not usable at all.
.Is there any actual component inside that I can replace to make it normal again (maybe the diode)?
Thanks for your help.

[ubersam]

.Is there any actual component inside that I can replace to make it normal again (maybe the diode)?

That would be the first thing I'd check, the reverse polarity protection diode. If that's the culprit, I'd take it out and replace it with this: http://www.geofex.com/article_folders/mosswitch/mosswitch.htm

[GibsonGM]

.Is there any actual component inside that I can replace to make it normal again (maybe the diode)?

That would be the first thing I'd check, the reverse polarity protection diode. If that's the culprit, I'd take it out and replace it with this: http://www.geofex.com/article_folders/mosswitch/mosswitch.htm

You can start there, but if that's not the problem, read the "Debugging" thread. You'd have to either audio probe from the input, or take some voltage measurements and post them.   

Don't have the schematic, but I bet it's not very complicated and could be repaired pretty easily.

[Kipper4]

Is this the schematic you are working from ?


http://2.bp.blogspot.com/-7mInY_-yDBA/Txl0I0iyF6I/AAAAAAAAAo4/afNMQkXQloE/s1600/xotic_ep_booster.png