Allen&Heath DR66 USER GUIDE - Manual (Page 33)

DR66 & DR128 Installer User Guide 33
The Function LEDs
The DR66 and DR128 function LEDs above the function keys may be independently assigned by
the installer according to application required. The switch and LED functions do not need to be
related. For example, the LED may be assigned as an input channel signal meter while its
associated key is a level select, or the switch could be unassigned while its LED provides a status
indication.
Input or Output Signal Meter The LED uses three
colours to display signal level:
Green = Signal presence > -20dB
Amber = Nominal 0dB signal level
Red = Signal peak within 6dB of clipping
The meter has a peak response accurately
displaying the dynamic transients. The input gain or
output level should be adjusted so that the loudest
moments display amber. If the red peak indicator
flashes then back off the level.
Mute Indicator The LED lights red when the
associated input or output channel is muted.
Status Indicator The LED may be assigned as a
static display for the associated patch. The colour
green, amber or red may be chosen. This is useful
when displaying patch selected. Examples include a
key assigned as a patch recall with its LED lighting
to show the patch was the last recalled, or a key
assigned as a partial patch source select where the
LED changes colour according to the patch number
selected. A key could be assigned to scroll through
three different sources such as CD, tape or jukebox
with a different LED colour for each.
Examples: