I stupidly plugged in the module backwards.
Shit happens .
Remember, Red Stripe Down. !!!!
If this happens to you , don't panic.
There are only a few sensitive components.
Start by swapping out the ICs.
Thankfully they are socketed.
Just 2 of them:
This is a TL084.
Its a op-amp
This is a CD4001 CMOS chip
They are sensitive to static electricity, and is the most likely culpruit.
It's a quad 2-in NOR gate
I swapped it with one of these and the module worked again
You can :-)
Links
+ CMOS
+ Integrated circuits - packaging
+ Opamps - basic circuits
+ Synthesizer Logic Modules - The 7 gates
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