Version 1:  (note that SW1/1 and SW1/2 might be reversed, some confusion around this)

Sw 1/1 ON = MDA/Hercules graphics mode
Sw 1/1 OFF = CGA/Plantonics Color+ graphics mode

Sw 1/2 ON = RGBI or Composite monitor
Sw 1/2 OFF = Monochrome monitor

Sw 1/3 ON = Composite in Color
Sw 1/3 OFF = Composite in Monochrome (IBM PC portable)

Sw 1/4 = Nothing (used on the very few 'g' versions of the card with a joystic port instead of the composite out)