Wiring for a Power I/O Module

[jeffwhitfield]

Ok, so I tried hooking up a power I/O module to an ADHD pedal build. For the life of me, I can not figure it out. Six holes, six wires, and nothing seems to work. Doesn't really seem to be any clear indication on the PCB for what really goes where. So...what is the correct wiring for this PCB?

 

[jeffwhitfield]

I found this post that asks about the power I/O module as well:

Power I/O module and j201 adapter

Hi there, Two questions from a total noobie: I hate outboard wiring. It is the bane of my existence. So I purchased those power I/O modules, because it looks like it would make things a lot more simple. I also recently ordered the pineapple distortion (wampler pinnacle clone). Now, this...

forum.pedalpcb.com

So, let’s say you have a 6 wire setup. Positive and negative power for the board, got that. Signal wires for input and output jacks, no problem there. But what about the remaining two ground wires from the jacks? Also, what if you did want to add a battery? How would that work? I think that’s where the confusion lies. It’s not clear where the grounds go.

 

[jeffwhitfield]

Alright, so I solved the problem with the wiring. Here's what I did with the Blue Shoe Gai Pan pedal that I built.

Looking at the PCB, it didn't appear that the grounds for the jacks were connected to anything at all. Because of this, I had to attach them to the bottom of the board where the grounds for the jacks are connected. Highly recommend that PedalPCB update the I/O module to include connections for these.

If your board sits super close to the cover for your enclosure, you'll definitely need to add some non-conductive tape to keep from grounding things out. Otherwise, this solves the problem.

 

[Robert]

Sorry for just catching this (a bit late)...

The ground wires from the jacks aren't necessary, the jacks are grounded via the - pad. The connection is made through the ground plane, this is why you don't see a trace connecting them.

The ground pads on the main effects PCBs are for convenience when hard wiring up jacks, they aren't needed when using the Power I/O module.

Only four wires are required for operation, IN/+/-/OUT.

 

[jeffwhitfield]

Ah, good explanation! Thx for letting me know. Will remember that in the next build with the I/O module.