Fried my EHX Small Clone...Now what?

[zwound]

Hello there everyone, I haven't been here for a long-long time.

Anyway,  I came here to ask what to do with my Small Clone, now that i managed to fry it. Here's how it happened. I found a random power supply that had the suitable end for the pedal, so i decided to try it. Then, 30 seconds later, I smell burning plastic and immediately take out the power supply and i see smoke coming out of the Small Clone Input and Output jacks. What should i do now? Is it fixable? What should i check. Is it easier to just scrap the pedal and build something new inside? Scrap for parts and sell on ebay (Enclosure, footswitch, jacks, potentiometer, switch)?

What should i do guys?

Ps. I really need a hug, i'm pretty bummed to have broken it...I knew I shouldn't had used that power supply 

[jacobyjd]

power supplies should always have their rating on the label--make sure to read that in the future...if it doesn't read 9vdc anywhere, don't use it without testing!

Open it up to see what's visibly fried, then check to see if it had a protection diode. If so, then replace that and you should be good to go. If it doesn't have one, well...commence with the debug readings!

[petemoore]

  Final steps before applying power:
  Make sure it reads a DC potential which is < the max. voltage rating of the components to which it will be applied.
  Double check polarities.
  Check for shorted condition at the circuit PS input, don't apply power until the +/- are not connected.
  Use the DMM to verify workable conditions.
 

[zwound]

Jacob, I opened it up and it appears to have no visible damage anywhere, except here:

http://img132.imageshack.us/i/dsc00120q.jpg/

There seems to be a diode/resistor stuck between a wire that comes from the power jack (Hard to tell, it's quite effectively destroyed).

How likely is it that this saved the rest of the pedal?

[petemoore]

  Reverse polarity...there may be a diode which should protect against, possibly burn as a result of RP.
  Exceeding the V-rating, if you exceeded the V-rating, the caps'd be the first to 'notice', measure the voltage applied, look up the max voltage on data sheets of the relevant components [mostly caps and actives, diodes can be tested with the DMM].
  Applying AC, pretty much everything except the resistors and non-polarized caps can now be suspect as failed.
    get power supply to the board [may require testing..replacing the protection diode if there is one.
  Apply 9v [a battery..] and see what the Active component bias voltages read.
  A wallwart which says 9vdc output can output other than 9vdc. Measuring with the DMM is one way to tell if it is putting out DC, and at what voltage potential. You may be able to get exactly 9vdc out of it with sufficient load, most of the ''9v'' WW's I've used/tried measured 11vdc or 16vdc..er..that's only counting the ones that were working 'right'.

[CynicalMan]

About 6 months ago, I got a used muff fuzz that was going cheap because it wouldn't work with a power supply. The problem was that someone had daisy chained it, and since it was a positive ground pedal, it broke. I opened it up and found that the only broken part was a 10 ohm resistor that had burnt up. I think EHX connected the supply ground to the case ground using it to prevent damage to the rest of the pedal if someone didn't read  the instructions. Anyway, the point of this is that I suspect that a similar thing has happened to your effect. There's a 90% chance that the rest of your pedal is okay

[MikeH]

About 6 months ago, I got a used muff fuzz that was going cheap because it wouldn't work with a power supply. The problem was that someone had daisy chained it, and since it was a positive ground pedal, it broke. I opened it up and found that the only broken part was a 10 ohm resistor that had burnt up. I think EHX connected the supply ground to the case ground using it to prevent damage to the rest of the pedal if someone didn't read  the instructions. Anyway, the point of this is that I suspect that a similar thing has happened to your effect. There's a 90% chance that the rest of your pedal is okay

Yeah, and in the picture the fried part looks like a resistor, not a diode.

[MoltenVoltage]

About 6 months ago, I got a used muff fuzz that was going cheap because it wouldn't work with a power supply. The problem was that someone had daisy chained it, and since it was a positive ground pedal, it broke. I opened it up and found that the only broken part was a 10 ohm resistor that had burnt up. I think EHX connected the supply ground to the case ground using it to prevent damage to the rest of the pedal if someone didn't read  the instructions. Anyway, the point of this is that I suspect that a similar thing has happened to your effect. There's a 90% chance that the rest of your pedal is okay

Yeah, and in the picture the fried part looks like a resistor, not a diode.

That's a resistor, but it's a little late to figure out the value

See if you can find a schematic that shows the value

[Thomeeque]

About 6 months ago, I got a used muff fuzz that was going cheap because it wouldn't work with a power supply. The problem was that someone had daisy chained it, and since it was a positive ground pedal, it broke. I opened it up and found that the only broken part was a 10 ohm resistor that had burnt up. I think EHX connected the supply ground to the case ground using it to prevent damage to the rest of the pedal if someone didn't read  the instructions. Anyway, the point of this is that I suspect that a similar thing has happened to your effect. There's a 90% chance that the rest of your pedal is okay

Yeah, and in the picture the fried part looks like a resistor, not a diode.

That's a resistor, but it's a little late to figure out the value

See if you can find a schematic that shows the value

Resistor is burned but probably because "fuse" diode did blow up and makes short-circuit now (so the full voltage from the PSU goes directly to this resistor, which is typically 10 ohms or so -> 9^2/10 = 8 Watts !!!)

T.

Edit: Sorry guys, I did something what I usually hate when others do - being smart-ass before reading previous posts carefully - now I see that (almost) everything was said already.. my apologies