madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: cedarwood on March 11, 2014, 03:15:40 AM

Title: sonic Screwdriver Probs
Post by: cedarwood on March 11, 2014, 03:15:40 AM
I can't seem to get enough power at the 9V once I ground to the board. I get 9.45V when I have the adapter not attached to the board ground but I get less than 1V when I ground it to the board. What am I missing?

How do I post pics on here again?
Title: Re: sonic Screwdriver Probs
Post by: cedarwood on March 11, 2014, 02:36:08 PM
(http://rs1345.pbsrc.com/albums/p670/ryanmwood/Mobile%20Uploads/DSC00432_zpsff09540c.jpg~320x480?t=1394548199)
(http://rs1345.pbsrc.com/albums/p670/ryanmwood/Mobile%20Uploads/DSC00431_zps228a6452.jpg~320x480?t=1394548138)
Title: Re: sonic Screwdriver Probs
Post by: midwayfair on March 11, 2014, 02:43:13 PM
I think your 1N4001 is backwards. Double check that the stripe (cathode) is NOT connected to ground.
Title: Re: sonic Screwdriver Probs
Post by: pickdropper on March 11, 2014, 04:39:16 PM
On that board, it's a 1n5817 in series, so it's actually hooked up correctly here.
Title: Re: sonic Screwdriver Probs
Post by: jkokura on March 11, 2014, 05:03:38 PM
If it works when it's not wired up, then doesn't work when wired up, it usually points to a wiring issue.

Have you tried any rewiring?

Jacob
Title: Re: sonic Screwdriver Probs
Post by: Clayford on March 12, 2014, 02:52:26 PM
Are you using a METAL 9v plug?