Dolby Laboratories CP650 Installation Manual download pdf (Page 47)

Dolby

Model CP650 Installation Manual Front-Panel and Alignment Overview

3-5

Power Supply Button

This button operates the main power supply for the CP650. As with other Dolby

cinema processors, the CP650 utilizes a separate backup (bypass) power supply. A

red LED built into the switch is activated when the unit is powered from the bypass

supply. While the main power supply is in use, this button is not illuminated, and the

screen and other indicators operate normally. When this button is illuminated red, the

unit is in bypass mode, either because bypass mode has been manually selected (by

using the button) or because a fault has been automatically detected. In bypass mode,

the unit is powered by the built-in bypass power supply.

Format Buttons

These buttons select the desired format. Pressing a format button during menu

operations will return the display to the top-level menu.

Setup Control-Panel Access Door

For use by the service engineer, the access door is opened to expose the setup control

panel.

Mute Button

Pressing the mute button fades the audio output to all channels without disturbing the

current main fader setting. The speed of fade-in and fade-out is separately adjustable

from 0.2 to 5 seconds using the front-panel menu buttons or PC setup software. The

mute button flashes red when mute is activated.

Operation and Setup Menu Control Buttons

The menu control buttons are used by both the operator and the service engineer to

navigate front-panel screen menus, select various menu options, and store setup data.

Figure 3–4 CP650 Operation and Setup Menu Control Buttons

The left-hand next menu button is used to step through the menu list. Pressing and

releasing the button once will change the display to the next menu item. Pressing and

holding the button while rotating the main fader knob will step the display through all

menu items.

The center adjust parameter button is used to select a parameter to adjust when

there are multiple items available on the display. Pressing and releasing the button

will select among them. The adjustment is then made by rotating the main fader knob.

The right-hand OK button is used to accept the setting displayed on the front-panel

screen and store it in CP650 memory. Any changes to settings will occur

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Dolby Laboratories CP650 Installation Manual Page 47