SOLVED Closed circuit booster limiter SoloDallas Storm - no sound


New member
Hi guys, just finished this build but there’s no sound when the pcb is engaged. I checked few sections and I hear the sound. I hear the sound from every pot, from the positive of the optoisolator, from pin 6 of RC4558 and from LM386N (I don’t remember the pin).
From the output pin of the pcb there’s no sound. Do you have any suggestion?


  • 3C8DC949-4A70-4BEF-8EC4-C39C9AFD866C.jpeg
    389.3 KB · Views: 11
  • 59383753-ADF9-4F28-AE12-545ADE123BC7.jpeg
    341.6 KB · Views: 11


New member
I finally found the problem.
Both the IC were good, I checked that there was sound from pin 2 of the B1k LEVEL pot but there was no sound from the board output.
I finally saw that one silvered circle of one layer of pin 2 was missing. I had to desolder the level pot because I solder the wrong value.
Desoldering the pot I damaged one layer.
I soldered a cable from pin 2 of the level pot directly to the board output of the 3dpt adaptor and everything works.