Dolby CP750 Digital Cinema Processor Manual - Projectionniste.net

CP750 Front Panel
Figure 1‐3
10
0
31/3db
per step
-10
-20
-30
Output
-40
Level (dB)
-50
20 dB
per step
-60
-70
-80
-90
0
1
2 3 4 5 6 7 8
9
10
Fader Level
Figure 1-3
Fader Characteristic
1.2.5 USB Port
The USB port is provided for connecting to a PC. You can use it either to set up the unit or
to update the CP750 firmware.
1.2.6 Digital Input Selection Buttons
When you press any of the Digital 1, Digital 2, Digital 3, or Digital 4 push buttons, that button
lights up, indicating that the selected input channel is active. Pressing one of these buttons
selects a specific digital input source, as shown in Table 1‐1. The CP750 switches
automatically between PCM and Dolby Digital bitstreams.
Table 1-1
Digital Input Selection Button Functionality
Input Button
Digital 1
Digital 2
Digital 3
Digital 4
Input Source Selected
Selects the input signal from the 4xAES DIGITAL 1 connector (four‐channel
pairs, 25‐pin D‐connector)
Selects the input signal from the 1xAES DIGITAL 2 connector (BNC)
Selects the input signal from the 1xAES DIGITAL 3 connector (BNC)
Selects the input signal from the 1xAES DIGITAL 4 connector (S/PDIF optical)
1.2.7 Valid Input LEDs
Each digital input push button has a green Valid LED located beneath it. These LEDs light
up when the CP750 detects a valid signal on the respective input, whether or not the input
is selected. Digital 1 and Digital 4 have valid signals in Figure 1‐1.
Dolby ® CP750 Digital Cinema Processor Manual 5