Allen&Heath XB-10 - Manual (Page 17)

Allen & Heath 17 XB-10 User Guide
MONO INPUT CHANNEL
0
L R
PAN
LEV
PFL
AUX
+6
-10
0
PRE
PK !
SIG M1
-20
-30
AUX
This control sends a signal to the auxiliary bus. The signal is sourced pre-
fade (and pre ON switch) or post-fade (and post ON switch) depending on
the PRE switch position. The send control varies the signal level to the bus
from off (fully attenuated) to +6dB, with unity gain at the arrow.
PAN
The pan control adjusts how the signal from the mono input channel is shared be-
tween the left and right sides of the PGM bus. Set to the mid position, equal amounts
of signal are fed to left and right, with pan set to L, none is sent to the Right bus.
Level
This control adjusts the level of the channel signal to the left & right PGM bus, ALT
bus and post fade Aux.
With the pot fully clockwise, the channel has unity gain.
ON Switch
This mechanically latching switch operates the channel mute circuitry, turning the
signal to the PGM, ALT and Aux buses on or off.
With the button depressed the signal is routed to the PGM bus and the pre/post
AUX bus. With the button up the signal is routed to the ALT bus and the prefade
AUX bus.
The switch is illuminated green when pressed.
There is also a remote mute option wired to a D type connector on the rear panel.
When this is wired and operated the green ON LED is switched off, and the mute
circuit is activated, regardless of whether the ON switch is pressed. Also the ON
switch activates a logic output that can be used to control an 'ON AIR' light or simi-
lar.
PFL Switch
The PFL (Pre-Fade Listen) switch sends the channel signal to the PFL bus and subse-
quently to the headphones/CRM speakers and the main L R meters. Used for check-
ing the audio signal before raising the level or pressing the ON switch.
SIGNAL & PEAK LEDs
The Signal LED illuminates when the pre-fader signal level is above –15dB.
The Peak LED illuminates and stays on for around 0.5 seconds when a peak level is detected
(pre-fader signal) within 5dB of clipping.