SoundCraft B400 - Manual (Page 54)

4.26 B400 Functional Description
MMAASSTTEERR AAFFLL
The Cueing system may be set to monitor PFL or AFL signals from the various
CUE switches on the console. This is done via the MASTER AFL switch, which
selects AFL mode when pressed.
AAFFLL AADDJJ
Note that when AFL is selected, the AFL ADJ preset is switched into operation.
This preset allows you to trim the level set by the CUE MNTR LEVEL pot.
CCLLEEAARR CCUUEE
The various Cue switches may be electronically latched and unlatched by toggling
the individual switches. They may also all be unlatched via the CLEAR CUE switch.
Note that the CLEAR CUE switch illuminates when one or more cues are active,
and the CUE TO MONITOR switch is depressed.