[I tried submitting this through the web contact form using a couple of different browsers but can’t tell if it came through; the form stays on the screen after hitting the Submit button]
Hi! I have inherited a Stoicheia that is DOA, and am trying to troubleshoot it. If you don’t have time to answer these kinds of support questions, I totally understand, as I work for a synth company and we have limited resources to address such inquiries about modules not under warranty.
I assume someone reversed the power cable, but there is no visible damage to any components. D2 and C2 were both shorted (looked fine but tested for continuity using a multimeter), but replacing both has not brought the module back to life. No LEDs light up. The ATmega168 is receiving ~4v on pin 7, but I have not tried re-flashing it with code yet, as I don’t have a programmer at home. Are there some simple tests I can do with other components to identify other potential issues in the circuit? I’d love to repair it here if possible, rather than ship it to you from the US.
Thanks in advance.