Instruction Manual

unD32 BoB
User Manual
 Attero Tech LLC 2013 Page 11 614-00012-01
3.5 – Volume Select Screen
The Volume Select screen provides the user a method to trim the output levels of the unD32 from the front panel and
the figure below shows a representative of it.
Figure 9 – Volume Select Screen
The top line on the Volume Select screen shows the channel number that is currently selected and the current volume
level.
The bottom line shows the signal level of the selected audio channel. The level meter provides an approximate analog
output level and is displayed as an extending horizontal bar. If no bar is shown, the output level is -40dB or below
while a full bar up to the right edge of the screen represents +20dB full scale output or clipping.
While in the Volume Select menu, pressing the Right/Left button will cause the cursor to move between the first
position of the Channel Volume and the Volume Select fields. To change the volume on an unD32 Output Channel, the
cursor should be moved to the first position of the Volume Select field.
Once in the Volume Select field, the Up and Down buttons will raise or lower the volume setting respectively. The
Up/Down buttons can be held down for greater than a half a second and the function will be auto-incremented to
enable fast changes of the volume. The volume can be adjusted between +20dB and -60dB. One press of the down
button when the volume setting is at -60dB will cause the channel to be muted and show ”MUTE” on the display.
To transition back to the Channel Menu, the cursor needs to be moved to the first character of the Channel Volume
field.
3.6 – LCD Sleep (unD32 only)
After five minutes of inactivity, the LCD will go into “Sleep” mode where the backlights for the LCD and the buttons are
turned off. Sleep mode only affects the backlights and all other operations will continue as normal. Pushing any button
will cause the LCD to “wake up” and the LCD and button backlights to illuminate again.
*Note: While changes to settings using the front panel are active immediately, they are only saved to non-volatile
memory when the LCD goes to “sleep”. If changes have been made to the unD32 settings using the front panel and the
unit is then powered down before the LCD has gone to “sleep”, any changes will be lost.