Sony OXF-R3 - Manual (Page 213)

Chapter 6 Technical Descriptions
6-51
Chapter 6 Technical Descriptions
1 LEVEL Knobs
Set output levels for each individual Foldback Group.
2 AFL Push-Buttons
Send After Fader Listen (AFL) signals to CR monitor LS.
3 CUT Push-Buttons
Mute individual Foldback Group outputs.
4 T/B F/Back 1 (-4) Push-Buttons
Enable individual talkback feeds to be sent to each of the four Foldback
Groups. T/B F/Backs may be assigned to Talkback Groups 1 and 2.
5 ST MON to F/back Push-Buttons
Replace the signal from the Send Busses with the Stereo Monitor signal
when the Main Output Bus is set for stereo. Replace the Send Bus signals
with the Stereo Output from the Fold-Down Matrix for a surround Main
Output.