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| portion of the flat flex cable |
Ground (to case)
Negative power (ground)
Positive power
unknown*
The lower large pad is the negative battery terminal, the upper positive. This is where I connected a Li-ion cell and the unit did something.
The weird springy sheet metal clip...thing...holds this:
 |
| Absolutely no idea WTF |
 |
| ??? |
The center pin of this weird thing is the unknown* trace, the case is connected to ground.
