Dead DOD Supra Distortion FX55B
Hi. Just bought DOD Supra Distortion FX55B and accidentally connected it to a 18V power supply. So i don't really know if i've burnt it or was it delivered broken, but it doesn't work. The light turns on, but there's no sound except for a very quiet buzz when level/dist are set on max (when you pull the strings). Is it possible to determine what's broken, what equipment is required to do so? I can soldier, but am a total noob in fixing stompboxes. Any ideas what to do with it?
Ok, and it's not a battery/cable/guitar/amp problem for sure.
Thanks in advance for any feedback.
Ok, and it's not a battery/cable/guitar/amp problem for sure.
Thanks in advance for any feedback.
- Dirk_Hendrik
- Old Solderhand
Information
Get a multimeter and verify 9 volts where the schem says so and 4.5 volts at the bias points and at the outputs of opamps U1a and b as well as U2a and B.
Please post your results
Thanks for the reply.
I have ordered a cheap tester from ebay, should arrive in half a month. But it won't work with 4,5 V i guess.
Can't smell anything particular and can't find C15. I also don't know how to take the scheme out of the box.
So, waiting for the tester, i'll post the results of my investigation as soon as it arrives.
I have ordered a cheap tester from ebay, should arrive in half a month. But it won't work with 4,5 V i guess.
Can't smell anything particular and can't find C15. I also don't know how to take the scheme out of the box.
So, waiting for the tester, i'll post the results of my investigation as soon as it arrives.
- Dirk_Hendrik
- Old Solderhand
Information
C15 should be in parallel to diode D7 and connected to the DC jack.
What tester did you order that would not work with 4.5 volts? Assuming you've bought a multimeter it should work. Any multimeter is able to measure 4.5 volts.
What tester did you order that would not work with 4.5 volts? Assuming you've bought a multimeter it should work. Any multimeter is able to measure 4.5 volts.
i ordered this one
https://www.ebay.com/itm/Auto-Circuit-T ... 6602844%26
would this one fit?
https://www.ebay.com/itm/New-LCD-Digita ... 232358e834
Still can't find C15. I'll keep studying the schematics as i don't get much from it so far.
https://www.ebay.com/itm/Auto-Circuit-T ... 6602844%26
would this one fit?
https://www.ebay.com/itm/New-LCD-Digita ... 232358e834
Still can't find C15. I'll keep studying the schematics as i don't get much from it so far.
Gave it to a friend, they checked everything and said it works fine, so no one knows what was the issue, but it works now.
Great pedal btw, like it more than ds-2
Great pedal btw, like it more than ds-2
no i was too excited about it, they just a bit different, cant say it beats ds-2)