How the heck do you wire up a Zero Point Mini?... **FIXED! THANKS!

[pauloman80]

I'm having issues wiring up my Zero Point Mini. Compared to the Hipster I built (which still doesn't work right for reasons unknown), it's confounding me. There's no wiring diagram in the build doc, nor is there a similar setup of pads that indicate where each line is supposed to go like on the Hipster. I tried using madbean's old 3PDT wiring diagram, but the result is noise, noise, noise. I figure my grounding wiring is incorrect, but again, I'm not really sure where everything supposed to go. What should the wiring be? Thanks!

[madbean]

The wiring is the same as any other true bypass project. I guess the only difference here is that the LED pad connects to the + end of your LED and the negative end of your LED goes to your 3PDT rather than the LED pads themselves being directly on the PCB.

If you are getting delay through, but with too much noise, then wiring is probably not the issue. You'll need to start looking at where that noise is introduced in the circuit via an audio probe.

[micromegas]

This is the standard wiring diagram:
http://www.madbeanpedals.com/tutorials/downloads/StandardWiring_MBP.pdf

The only difference you have in the Zero Point is a "LED" pad and that's because the CLR resistor is already in the PCB (the 4K7 resistor in the wiring diagram I posted above). You can run a cable from the "LED" pad to the anode of your LED (round side) and the another one from the cathode (flat side) to the lug 1A of your 3PDT (the 1st one of the upper corner).

If you still have problems with noise, you may consider other things (PT2399s are sometimes noisy). Just a little advice: use short wire runs for input and output, ground your jacks and consider using shielded cable for input/output (that shouldn't be necessary, but it sometimes helps).

[pauloman80]

Thanks, Brian. I wasn't getting *any* sound through the pedal, so I think I had the grounding all mashed up. Currently I have the LED wired just to the board, so I'll try changing the connection of the LED ground to the switch.

For clarification: the noise I was getting was grounding noise, hopefully making this wiring shift will fix it. I guess i should just leave that second ground pad next to the LED pad empty??

[pauloman80]

The ground wiring was the problem! Between the LED, the DC jack and the switch, I had all kinds of craziness, actually. Thanks! Works great! Now I just need to get this Sunking 2 working...