Originally Posted by
IO540
I know nothing about the G1000 internals but would be suprised if it has two separate backlight and backlight inverter systems. I think one must assume that a failure will take out the whole panel.
The PFD and MFD are identical, independent displays and if one fails, the critical information is presented on the remaining one. This should happen automatically, but there is a backup switch, just in case, and for testing it works.