Attero Tech unD32 BoB Manual del usuario - Página 11
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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.
C H 0 1 V O L : - 2 0 . 5 D B
L E V E L
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
After five minutes of inactivity, the LCD will go into "Sleep" mode where the backlight for the LCD and buttons is turned
off. Sleep mode only affects the backlight and all other unD32 operations including audio transfers 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.
© Attero Tech LLC 2015
Figure 8 – Volume Select Screen
Page 10
unD32 BoB
User Manual
614-00012 Rev 02