User Manual
The 7-segment display, and the lower-left quadrant of the F1 indicating that Deck C is the Remix Deck currently controlled
by the F1.
Note that a pad quadrant will only flash if the corresponding Deck is a Remix Deck. If
you've set Deck C to be a Track Deck, for example, then the lower-left quadrant of the
Pad Matrix will not light up when you rotate the encoder knob. This is because the F1
can only control Remix Decks.
TRAKTOR KONTROL F1 Reference
Performance Mode
TRAKTOR KONTROL F1 - Manual - 78