madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: irmcdermott on February 21, 2011, 01:05:22 AM

Title: Weird Potentiometer Issue
Post by: irmcdermott on February 21, 2011, 01:05:22 AM
Hey everyone,

I'm stumped. I can't find a short to ground, I've rebuilt this board twice, and I'm still having a weird issue.

I'm working on a Ross Compressor from tonepad's layout. I'm about to throw it out the window, which is why I have stepped away and am asking here. :)

What are some reasons for why the signal would totally cut out when I touch a pot? I can't find any shorts anywhere. I'm building this for someone and they have been patiently waiting and I'm trying to get it done in the upcoming week before I leave town for a month for work. Any thoughts would be appreciated. I'm stuck.
Title: Re: Weird Potentiometer Issue
Post by: jkokura on February 21, 2011, 02:45:55 AM
I can tell you I've made tonnes if these, and the tonepad board is not the problem. Just in case you're beginning to doubt the project PCB.

First thing I think of is bad pot.

Jacob
Title: Re: Weird Potentiometer Issue
Post by: irmcdermott on February 21, 2011, 03:24:24 AM
Yeah, I know it's not the layout. This is the second new pot I've put into it, so I thought I'd see if there was a chance of something else going on. I don't think it's anything with the board because I've put a totally random value pot on in place of it, and I don't have these issues. Thanks for your input.