Dolby Laboratories DP569 User Manual

Model DP569 User’s Manual 

Setting Up 

2-8 

Off 

The Ref In input is not selected. 

Green 

The Ref In input is required and locked without errors. 

Red 

The Ref In input is required, but invalid or not present. 

Off 

Remote interface is disabled. 

Green 

Remote interface is enabled and operating without errors. 

Red 

Remote interface is enabled but there is a low-level serial communications error. 

Off 

The timecode input is not required. 

Green 

Input is required and a valid input is detected. 

Red 

Input is required, but invalid (e.g., stop time frame number >25 and timecode 
is at 25 fps) or not present. 

 

There are six-channel activity LEDs.  

If an input channel is muted because its input source is missing or invalid, the 
respective activity LED will be turned off. 

If the system is missing its clock signal then all activity indicators will be turned off 
even if audio inputs are present. 

Table 2-7 Input Channel Activity LED States 

Off 

Channel is not used. Channel is muted due to invalid input. 

Yellow 

Channel is selected and less than –60 dBFS.

 

 

Green 

Channel is selected and between –0.1 and –60 dBFS. 

Red 

Channel is selected and is greater than –0.1 dBFS (clip). 

The front-panel RS-232 port is active only when a connector is physically attached to 
the port and the Remote mode or Download mode is enabled. 

The following front-panel functions are active during the Remote mode: 

•  All front-panel status LEDs. This includes the LEDs on the front-panel preset 

buttons, although the buttons themselves are not active.  

•  The Remote mode remains active whether or not controlling devices are 

attached to the remote ports and whether or not commands are being received. 
Note that commands from the front-panel remote port override any commands 
received from the rear-panel port.