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Projects => Tech Help - Projects Page => Topic started by: CMinusInGym on February 13, 2011, 02:28:12 AM

Title: Egodriver LED Problem
Post by: CMinusInGym on February 13, 2011, 02:28:12 AM
Hi, I'm building my first Madbean pedal, an Egodriver OCD Clone, and have a problem with the LED.  The pedal works fine and sounds great, but the LED does not work.  I've tried switching the contacts and even trying a new LED, but neither have worked.  Any idea on what might be causing this?

Thanks for any help!
Title: Re: Egodriver LED Problem
Post by: nzCdog on February 13, 2011, 06:25:03 AM
Have a look at the wiring diagram here...
http://www.madbeanpedals.com/forum/index.php?action=dlattach;topic=707.0;attach=212;image (http://www.madbeanpedals.com/forum/index.php?action=dlattach;topic=707.0;attach=212;image)

Lug 'A1' of the 3PDT goes to the hole marked 'SW' on the egodriver board, the Square 'LED' hole goes to the long leg of the LED (+) and the round LED hole goes to the short leg '-'
Hope this solves your problem :)
Title: Re: Egodriver LED Problem
Post by: CMinusInGym on February 13, 2011, 02:14:47 PM
so if the SW wire isn't connected correctly, the LED won't work?

Thanks I'll check it out!
Title: Re: Egodriver LED Problem
Post by: CMinusInGym on February 13, 2011, 07:00:32 PM
Ok, I tried everything with no avail.  Could it be something else?
Title: Re: Egodriver LED Problem
Post by: madbean on February 13, 2011, 07:37:54 PM
Please post an close-up pic of your led and switch wiring.
Title: Re: Egodriver LED Problem
Post by: CMinusInGym on February 13, 2011, 07:47:14 PM
Okay, I solved the problem and the LED lights up, but when I bypass the pedal, it stays on.
I think there is an accidental connection, but I'm not sure between which parts.

I'll post a pic as soon as I get a chance.
Title: Re: Egodriver LED Problem
Post by: madbean on February 13, 2011, 07:50:11 PM
If it's staying on then somehow the negative end of the LED is always connected to ground, rather than only when the switch is engaged. So, I think somehow the switch wiring is incorrect, or you ran a wire from the wrong pad on the board. We'll know a little more once we get that picture!
Title: Re: Egodriver LED Problem
Post by: CMinusInGym on February 13, 2011, 08:06:40 PM
I partially fixed the problem, but now I have a bigger problem.  The light turns on and of when on/bypassed, but when I plug my guitar in, the LED goes faintly on and the guitar level drops.  When I roll back the guitar volume, the LED grows brighter.  When I turn the effect on, the LED lights up fully and the volume mutes.

(I'll take a picture as soon as I can)
Title: Re: Egodriver LED Problem
Post by: jkokura on February 13, 2011, 08:19:51 PM
Whoa! Sounds trippy! We definitely need more info and pictures.

Jacob
Title: Re: Egodriver LED Problem
Post by: CMinusInGym on February 13, 2011, 08:25:16 PM
Alright, I figured it out.  In case anyone else ever gets this problem, it was the SW and input tip connections touching.  It finally works and sounds amazing!  Great pedal Madbean!!!  ;D
Title: Re: Egodriver LED Problem
Post by: madbean on February 13, 2011, 11:02:44 PM
Sweet. Another happy rocker :)
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