madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: bhound on August 03, 2010, 12:08:46 AM

Title: dearinger ver.2 issues Help???
Post by: bhound on August 03, 2010, 12:08:46 AM
Has Anyone else built the dearinger ver.2. I am getting really low volume. nothing in vintage mode. Changed the trannys and I.C..  What should my voltages be ?  Double checked all my solders and connections. I am by no means a pro, however I have built  about 75 pedals and am pretty good at troubleshooting...but this has me scratching my head and other anatomical parts Thanks anyone
Title: Re: dearinger ver.2 issues Help???
Post by: madbean on August 03, 2010, 12:10:33 AM
Are you using a center on DPDT for the mode switching?

What are your voltages on the IC?
Title: Re: dearinger ver.2 issues Help???
Post by: bhound on August 03, 2010, 01:21:03 AM
It is an on/on/on  I was wondering on the dpdt is 3and4 connected? counting left to right top to bottom
I.C. voltage 1)5.9  2)8.9  3)5.9  4)8.9  5)5.9  6)8.9  7) ground  8) 8.9
Title: Re: dearinger ver.2 issues Help???
Post by: madbean on August 03, 2010, 01:33:07 AM
Okay, your voltages are way off. Pin4 should be 0, pin8 about 9v, and the rest somewhere around 4.5v.

Most likely you have some type of ground issue or perhaps a small bridge. If you have a magnifying glass, check it that way. It's very helpful.
Title: Re: dearinger ver.2 issues Help???
Post by: bhound on August 04, 2010, 02:32:48 AM
Thanks, actually the way I counted the pins  was wrong. 4 is 0v or ground 
The problem was a bad trace. It looked o.k. but I jumped across and I'm back to normal Voltage wise.                               I... myself... on the other hand, am still a complete Knuckle dragging, slack jawed dimwit!
Title: Re: dearinger ver.2 issues Help???
Post by: madbean on August 04, 2010, 02:46:08 PM
Ah, crap. Sorry about the trace. I always check before sending them out, and make a note if I see a small trace break. But, every once in a while one gets away.

Glad it was sorted out. Is it producing the correct sounds now?
Title: Re: dearinger ver.2 issues Help???
Post by: jkokura on August 07, 2010, 03:44:47 AM
I can verify - Brian gave me a note about one of the boards he sent me. It's not a problem for me at all.

Jacob
Title: Re: dearinger ver.2 issues Help???
Post by: bhound on August 13, 2010, 10:34:04 PM
After trouble shooting, I ran an a\b test against a real fulldrive2 . It is spot on!!!! Thanks for the help!