Valid voltage values table in schematics is not complete
The "Valid voltage values" table in the schematics is not complete enough for writing production test software.
- Give min and max values with a precision of 0.01V, taking into account tolerances of resistors and ADC.
- Correct Vadj for SPEC (around 1.66V instead of 2V).
- Document on wiki page for now. Insert in schematic when a new version needs to be made.