Muzzle issues

[jeckhart_17]

 I recently built 2 Pedalpcb Muzzle noise gates. One is somewhat working and this one does not work properly at all. I've went through previous threads tontroubleshoot but can't find my exact problem. When I turn it on the LED lights up both the red and green and the pedal does not pass signal. None of the contacts seem to be touching, I used the PedalPCB THAT4301 retrofit module.

IC voltages:
 TL072CP
1 0v
2 0v
3 0v
4 -8.68v
5 0v
6 0v
7 0v
8 9v

LT1054CP
1 9.02v
2 4.92v
3 0v
4 -3.92v
5 -8.73v
6 2.52v
7 1.42v
8 9.02v

PedalPCB retrofit IC
1 0.58v
2 -2.71v
3 0v
4 1.39v
5 0.83v
6 0.54v
7 4.48v
8 0v
9 0v
10 -8.69v
11 9v
12 8.33v
13 1.03v
14 4.48v
15 4.47v
16 0v
17 0.33v
18 8.09v
19 0.59v
20 0v

 

[PJS]

The build docs call for a switched TRS jack for the key jack. You seem to have a TRS jack that is not switched. Also, the wiring shown on the build doc will connect the ground for the 2 sidechain jacks through the case. I don't think the sidechain will work without ground connections on these jacks. If you are trying to get it all working outside the case (which is a very good idea) then you should solder ground wires to these 2 jacks. I would do that anyway to be honest. I have seen a few pedals that stopped working and the only problem was that the jack sockets had loosened enough that there was no ground anymore.

 

[jeckhart_17]

The build docs call for a switched TRS jack for the key jack. You seem to have a TRS jack that is not switched. Also, the wiring shown on the build doc will connect the ground for the 2 sidechain jacks through the case. I don't think the sidechain will work without ground connections on these jacks. If you are trying to get it all working outside the case (which is a very good idea) then you should solder ground wires to these 2 jacks. I would do that anyway to be honest. I have seen a few pedals that stopped working and the only problem was that the jack sockets had loosened enough that there was no ground anymore.

I didn't take a good picture of the jacks but the sidechain is a switched jack, and I will add grounds to them. Thank you!

 

[PJS]

Other thing I thought about - is your switch (on the key jack) normally open or normally closed?

 

[jeckhart_17]

Other thing I thought about - is your switch (on the key jack) normally open or normally closed?

90% sure it's open when plugged in, not at home with it to double check currently

 

[PJS]

That should be correct then