Dolby Laboratories CP750, Руководство пользователя

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CP750 Front Panel
Dolby
®
CP750 Digital Cinema Processor Manual 5
Figure 1 ‐ 3
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.
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 .
Table 1-1 Digital Input Selection Button Functionality
Input Button Input Source Selected
Digital 1
Selects the input signal from the 4xAES
DIGITAL 1
connector (four ‐ channel
pairs, 25 ‐ pin D ‐ connector)
Digital 2
Selects the input signal from the 1xAES
DIGITAL 2
connector (BNC)
Digital 3
Selects the input signal from the 1xAES
DIGITAL 3
connector (BNC)
Digital 4
Selects the input signal from the 1xAES
DIGITAL 4
connector (S/PDIF optical)
9
-60
-50
-40
-30
-20
-10
3 2 4 5 6 7 8
-70
-80
-90
Fader Level
Output
Level (dB)
1 0
10
0
10
20 dB
per step
3 1/3 db
per step