Issues on v2 to solve for final board (solved in v2 fix)¶

• Remove video DAC and audio ADC power supplies.
• Verify footprint of main board IO area vs standard. Power switch does not fit?
• Adjust paddle voltage level potential divider.
• Fix black 'éclaireXL'
• Widen cutout next to pbi from 3.7 to 4.75mm (or more)
• Change REF_N pull up from 4k7 to about 2k.

Potential improvements¶

• Think again on the sub-board vs external board?
• Header to connect SIO LED to case
• Support hardware to allow main case switch to turn board on/off. Not sure how to go about this...
• Power on switch invert up/down on/off to match 800XL!
• Use 5V boost/buck regulator to give stable 5V