Update: I suspect I had some weak solder joints that broke loose due to the pressure of putting on the back of the enclosure. I reflowed solder and made the wiring as short as I could so I can have plenty of room for the PCB to rest nicely in the enclosure without any resistance from the wiring. Seems to work fine now. If it craps out again, I'll assume the same thing happened and likely fix it again by reflowing new solder.I had this little guy working and jammed with it for an hour. The next day, the signal was choppy for a minute before cutting out completely and now it seems totally dead. I reflowed solder, redid the wiring, tested continuity with a multimeter (everything seemed to check out), cleaned the board with 99% IPA, and it still won't work. You can find pictures of my build from various angles here:
https://imgur.com/a/yv4fzkL (PCB looks a little grimy in some photos - same results after cleaning that grime)
It works in bypass, the LED comes on when engaged, and adjusting the trim pot does nothing. On a rare occasion, I'll get a brief signal while testing, but I can't replicate anything. I've been testing it out of the enclosure so I can be sure that none of the wires are shorting.
I also tested voltages on the IC with a multimeter and got the following values:
1: 1.3 mV
2: 4.27 V
3: 4.27 V
4: 0
5: 150 mV
6: 2.76 V
7: 9.43 V
8: 3-6 mV (started around 6 mV, then slowly trickled to around 3 mV before my shaky hands couldn't keep it on the pin)
What else can I test?