Hi, I have one working cavedweller that I've been comparing my failure with and one difference I'm curious about is that there is around .6 V at pin 7 on the worker, 0V on the failure.
All other pins test out. I e swapped the pt2399s with no difference.
I've reviewed my cap and resistor values and haven't found anything yet.
Thanks for any ideas
Without seeing it, I'd say there's a short to ground somewhere, possibly a bridge. Pictures would help.
Thanks for your reply, it helped.
It turns out that I had cooked the current control led when soldering and it failed closed.
Excellent, it's up and running then?
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