Looking to replicate an ENGL Z4 footswitch with a slight mod. Can anybody help?

Started by JustABard, December 19, 2015, 11:56:45 AM

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JustABard

Hello. Long time lurker, first time poster (created the account to post). I was wondering if anybody could help me out here. I'm just a novice at DIY pedals. Basically, I want to rebuild what is in the picture, but instead, I would like for one of the LEDs to be bi-colored. I'm pretty sure I would need a 3DPT switch to do it, but that's not a problem. Any help would be greatly appreciated. Thanks for reading!

http://imgur.com/dw2vCTO

http://imgur.com/nygti8x

PRR

Welcome!

Don't need new switches or added battery.

Just move the LEDs to the far side of the switches, in the common return.

  • SUPPORTER

JustABard

Thank you for the reply and warm welcome! Ok, I understand that I have to connect the common cathode (middle pin) of the bicolored LED to ground, correct? But I'm unsure of where to move the rest of the light. I have made a template that I'm trying to fill in. Could you help to finish it? I'll post the blank one just in case I made the wrong lines already.

Blank template in case I messed up: http://i65.tinypic.com/s24kmq.png

My overall goal is to be able to switch between channels and turn my mid-boost on/off. My amp says the foot switch controls these functions with a stereo out jack. I want the light out when my mid-boost is off, and red when it is on. Additionally, I want my clean channel to display a blue light, but have that light switch to red when I switch to lead.






PRR

> clean channel to display a blue light, but have that light switch to red when I switch to lead.

I'm assuming the amp supplies LED power when effect is "on", but we can't steal power when "off" or the amp will think we want the effect "on". Therefore you do need a power source.

This also means the pedal will tend to turn-on in your gig bag when it gets bumped, unless you take-out the battery (every time?) or wire for external power source.

  • SUPPORTER

JustABard

Thank you! I'm waiting on the supplies to arrive now. I bought some 9v adapters to wire external just in case, along with some other extras just to have. I'm studying the switching sequences of the DPDT switches as well as your diagram and getting a far better understanding of how this is working.