Replacing a DPDT with a 3PDT LED switch in an MXR Dyna Comp. Can it be done?

[Tleslie474]

I’ll start this by saying I am a dummy, not an electrician, and by no means a circuit board guru. I am an above average DIY’er with considerable soldering skils. Long time listener, first time caller….
I want to know if it is even possible to (and obviously how to) replace what I believe is a DPDT (6 pin) foot switch in an MXR Dyna Comp with a 3PDT with LED foot switch? I am just starting to dabble in repairing my own pedals as this is the first one that has failed and I ended up with a few of these switches that I would like to use. Any assistance would be appreciated. Obviously, the new switch isn’t going to be a direct replacement to the board, but is there a way to jumper what needs to go where?

 

[spi]

It sounds very possible. Can you post a pic to see what kind of room you have there, and how the current switch is connected?

 

[Tleslie474]

The current switch is mounted directly to the board. There is not enough room in the existing chassis to accommodate the new switch, but I have an expansion box to accommodate the new switch which will sit atop the existing pedal about 3/4”. Yeah, I know, it’ll look like shit, but I’m all about Rat Rodding stuff! I have another stock MXR Dyna on my board now, so if this doesn’t work or looks too trashy it’s no big deal. Just tinkering and seeing if I can make it work. Thanks for any input!

 

[jimilee]

You can use a smaller 3pdt basically a Dpdt is 2/3 of a 3pdt. You can use these lugs just like a Dpdt
1 4
2 5
3 6

And then lugs 7, 8, and 9 for the led. The cathode of the led would go on lug 8 and a ground wire on 7 or 9 depending on the on position.

 

[Tleslie474]

This is a pic of the”new” switch I want to install. It has 3 external leads for the LED which is a red(off/stand by) and green(on/active). I know, over complicated, but pretty cool…. Lol. Thanks!

 

[spi]

Oh yeah, I've seen those ones with the built in LEDs. Never used them myself but see them on build reports here occasionally.

 

[Tleslie474]

Oh yeah, I've seen those ones with the built in LEDs. Never used them myself but see them on build reports here occasionally.

I wanted to put one in my RAT also, but the existing switch looks too F€£¥&@G complicated to even get off the board!