madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: Ang3lus on February 22, 2011, 06:36:49 PM

Title: IC voltages on the uproar ?
Post by: Ang3lus on February 22, 2011, 06:36:49 PM
can anyone measure their measurements and post please ?

getting low volume + almost no gain

Title: Re: IC voltages on the uproar ?
Post by: oldhousescott on February 22, 2011, 07:25:05 PM
Based on the schematic, pin 8 on both DIPs should be 9vdc, pin 4 0v. All the other pins on both DIPs should be around 4.5vdc. If you do the Facemelter mod and switch it on, pins 1, 2, and 3 on IC2 will drop to about 2.8vdc.
Title: Re: IC voltages on the uproar ?
Post by: Ang3lus on February 22, 2011, 07:26:16 PM
hmm, i see, thanks.

after measuring seems like all is fine.

cool, thanks, gonna look for more problems
Title: Re: IC voltages on the uproar ?
Post by: zedsnotdead on June 18, 2013, 09:45:31 PM
Hi!!
sorry for the necro-thread...

Did you manage to find what was wrong with your build?

Mine, I had the same problem. then I am trying the jaymaze mod, but now I can't get any sound out of it: I mean NONE!

I checked for bridges, shorts, IC voltages... everything is OK.
The bypass is Ok too.

I am lost here...

Help?