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Also, never hurts to give someone new to the thread all the evidence up front, since some of us don’t care to read the entire thread before deciding whether to weigh in.

I’ve been at a cabin all weekend with shoddy internet reception, a lot of craft IPA’s, and plenty of time on my hands. My thinking hasn’t been entirely clear at times.

I think the 1N4148 I pulled might be part of the switching system. Added the photos to the OP too.

I took a closer look at the board and found a diode that had way too much solder on the component side. When I solder sucked it, it revealed a broken leg. I removed the rest of the diode and took pics of it and the board. I’ll add them to the OP. Looks like a 1N4148

It’s a TC4013BP

Some of the screws are near-stripped so I’m likely not the first person to open it up. It will be a few days before I can get back home and put a probe together, but I’m determined to get this solved and get my fifty bucks worth out of it.

If it were a burned out resistor or capacitor, there wouldn’t be any sound coming out at all, right? I’m more than happy to try replacing some IC’s if they’re the most likely culprit.

Correct, it's a TL072 up top. I'm not sure how to set my DMM for the correct reading. Here are the readings I got for Pin 1 with a few different settings. 1576 & 71.9 & 072 I won't attempt any more readings until I know which setting I should be using. I don't see another IC near the Speed pot...

Plugged in normally, I get chorus from the OUT, same low volume as the bypass signal. I then plugged into the STEREO OUT jack for comparison and the volume was the same as if I were plugged right into the amp. EDIT: Here’s a video to cut down on confusion.

I looked inside the jacks with a flashlight and could see two contact prongs in the INPUT and STEREO OUT jacks, but only one prong in the main OUT jack. Are there supposed to be two in there? Signal comes out loud and clear (ie correctly) from the STEREO OUT jack, but with no chorus, obviously.

Lol, that shot is actually from the customer. He was kind enough to take a shot for me when he put it on his board. He put a video of him playing it on Facebook. I'll try to find it.

I forgot to take one before shipping this one out. :(

Yes I do!

Thank you!

Mine sounds better than the Dirty Shirley I bought.

Thank you! This has plastic jacks too so I’ll definitely check that! It looks like there are a couple trim pots on the main board, but those aren’t for volume.

I picked up one of these seafoam green 18v models used and it's got an issue. Volume is really low, whether the pedal is on or in bypass. I've opened it up but I'm not sure what I should be looking for unless there's a trim pot in there somewhere. Does anyone have any ideas on this one? It’s...

I followed what the PCB said. Regardless, my build sounds pretty fucking awesome.

I just built one using the previous board revision. Were C11 and C12 reversed on that one?

SOLVED: My wiring was correct, and I had the jacks plugged in correctly. I went through all my connections between the boards and wires and re-flowed a few solder joints. I pulled and re-seated all four of the J201’s and wired in my LED. I’m not sure which of those steps fixed the problem, but...