I broke My PH-1, Need Help Plugged in 12V accidently

[ZooropaTV]

I accidently Plugged 12V into my PH-1 and its stopped working, if anyone can help with this and tell me which parts may need to be replaced with what it would be a big help thanks

[freak scene]

almost definitely the power protection diode, also a good chance that a couple of ic's got dinged too.  when in doubt start with the cheapest and work your way up.

[ZooropaTV]

could anyone help me with locating it, and what i should replace it with?

[tommy.genes]

I don't have a PH-1 schematic, but you could probably find one with the SEARCH function.

What you are looking for is a diode, possibly a Zener, directly across the DC supply input - cathode to +V and anode to ground.

Put a meter (if you have one) across the diode. If it shows a short circuit, you may be in luck. Replacing or even just removing the failed diode may fix your problem, although not replacing the diode doesn't offer you any protection for the next time you make the same power supply mistake.

If the diode failed as an open circuit, however, that means the 12V got further into your pedal and could have done more damage. In that case, you will need help from someone more knowledgeable than me.

-- T. G. --