Hello there,
I assembled the Photon vibe and unfortunately I can't get any sound out of it when the effect is on. The lamp light isn't modulated either. So I am thinking I might have one issue on the signal path and another one in the LFO circuit. Just to mention it, I replaced the dual C100K (speed) with a B250K pot with330K resistors across (alternative proposed in these forums to avoid difficult sourcing of dual C100K).
Anyways, I summarized where I am at in the debug process with the shematic below, both sound probe and voltage checks. I believe I reached the extent of my debug capability and I kindly ask for further guidance
. Any idea what to check next? Replace IC1 and IC3 in case of faulty ICs? How to debug the LFO?
Thank you for the help!
Alex
I assembled the Photon vibe and unfortunately I can't get any sound out of it when the effect is on. The lamp light isn't modulated either. So I am thinking I might have one issue on the signal path and another one in the LFO circuit. Just to mention it, I replaced the dual C100K (speed) with a B250K pot with330K resistors across (alternative proposed in these forums to avoid difficult sourcing of dual C100K).
Anyways, I summarized where I am at in the debug process with the shematic below, both sound probe and voltage checks. I believe I reached the extent of my debug capability and I kindly ask for further guidance
Thank you for the help!
Alex
![Photon vibe debug.jpg Photon vibe debug.jpg](https://forum.pedalpcb.com/data/attachments/26/26834-ff06c56e05e056394f67764c45863123.jpg)