Service manual

19
XL414 Group Module (And Mic/Line Input).
1. The AUX SEND controls give continuous adjustment of the mono aux bus output levels from
+10dB to off.
2. The aux send MUTE switches mute the aux bus outputs.
3. The aux send SOLO switches send mono aux bus signals to the PFL and AFL busses. If a
switch is pressed for a short time it will latch on or off, but if it is held on for more than 1 second
the latching is disabled and when the switch is released the solo will turn off.
4. The FADER CHANGE OVER switches swap the mono aux busses with the audio group
busses so that the console can be used for monitor applications.
5. The VCA GROUP switches assign the mic/line returns to the 10 vca sub groups.
6. The TREBLE controls give continuous adjustment of boost and cut from +15dB to -15dB with
a centre detent. The frequency is fixed at 10kHz.
7. The BASS controls give continuous adjustment of boost and cut from +15dB to -15dB with a
centre detent. The frequency is fixed at 100Hz.
8. The GAIN controls give continuous adjustment of the mic/line return gains from +50dB to -
30dB. The special input circuits maintain full headroom from mic level to line level without the
use of a pad.
9. The mic/line return PAN controls place the return signals within the stereo master mix and have
a constant power law i.e. -3dB at the centre position.
10. The mic/line return MUTE switches mute the return signals and are under automation control.
11. The mic/line return SOLO switches send the return signals to the mono PFL and stereo AFL
busses. If a switch is pressed for a short time it will latch on or off, but if it is held on for more
than 1 second the latching is disabled and when the switch is released the solo will turn off.
12. The SUB switches disconnect the line returns from the stereo master buss and route the
signals to the audio sub groups directly below without passing through the pan control.
13. The GRAND MASTER VCA switches assign the audio sub groups to the 2 grand master vca
sub groups.
14. The AUTO MUTE GROUP switches assign the audio sub groups to the 8 auto mute groups.
15. The SAFE switches disconnect the audio sub group mutes from the auto mute busses.
16. The TALK switches connect the audio sub groups to the COMMS module. When the TALK
TO GROUPS switch on the COMMS module is activated it is then able to route its oscillator,
pink noise, external input, talk mic or comms mic to the audio sub groups.
17. The INS switches connect the group insert return signals to the audio sub groups.