Dolby Laboratories Lake LP4D12, Manual

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Dolby
®
Lake
®
Processor System Manual Front-Panel Interface
29
Portal 2 provides viewing angle control. Adjust this value to provide optimal Portal
display performance depending upon the mounting location of the Processor. By
default, the Portals display best directly on-axis to the front of the Processor.
Adjusting the viewing angle improves display performance when mounting the
Processor low to the ground or high in a rack.
Portal 3 provides the ability to change how the delay units are displayed for front-
panel edit control purposes. Choose from Milliseconds, Feet or Meters by using the
illuminated arrows.
Tapping
ME
on Portal 4 navigates to the Access Control submenu where various
front-panel security features can be enabled as described in the following sections.
4.5.13 Main Menu
Æ
Front-Panel Configuration Menu
Æ
Access
Control Menu
Figure 4-29 Access Control Menu
The Access Control menu provides options to set EQ limits and to lock out various
front-panel controls.
Use the arrows on Portal 1 to select the menu or function, and use the
ME
button to
change the status between locked and unlocked. These menus and functions can be
locked:
•
Edit—Removes access to the Edit Menu
•
Presets—Removes access to the Presets Menu
•
Utility—Removes access to the Utility Menu
•
Mute—Disables the Mute Enable and all mute buttons on the front panel
•
Brightness—Set the front-panel brightness and view angle as view only
•
Network—Disables network communication on the processor (that is,
processor cannot be seen on the Dolby Lake Controller network)
Portal 2 provides configuration for the minimum and maximum EQ limits for front-
panel editing purposes. For example, a system designer could restrict the front-panel
edit ability for EQ filters to a maximum of +6 and a minimum of –12. Use the up and
down arrows or the accurate value entry buttons as shown in Figure 4-30.