Grass Valley 2020DAC D-To-A - Manual (Page 12)

6 2020DAC Instruction Manual
2020DAC 4-Channel Audio Digital to Analog Converter
Power Up
The front LED indicators and configuration switches are illustrated in
Figure 6 . Upon power-up, the green PWR LED should light and the yellow
CONF LED should illuminate for the duration of module initialization.
Operation Indicator LEDs
With factory default configuration and a valid input signal connected, the
green PWR LED should be on and the yellow REM OVER LED should be
off (refer to
Table 4 on page 7 to see a complete list of possible operating
conditions and the resulting indicator status).
Audio input presence is indicated for both Channel 1/2 and Channel 3/4
by the 32, 44.1, or 48 green LEDs which indicate the corresponding input
signal sample rate has been detected. Each channel also has a yellow EMPH
LED to indicate when de-emphasis is being applied. The yellow REM
OVER LED indicates that the on-board configuration jumpers and switch
settings are being overridden by the remote control settings.
Figure 6. LEDs and Configuration Switches
16-position
Rotary switch for
Channel 1/2 Mode
32 – Green LED on indicates active sample rate on Channel 1/2
PWR – Green diagnostic LED on indicates power OK
FAULT – Red diagnostic LED is off during normal operation
Ejector Tab
COMM – Yellow LED on during remote control communication
CONF – Yellow LED on when module is initializing or processing control data
44.1 – Green LED on indicates active sample rate on Channel 1/2
48 – Green LED on indicates active sample rate on Channel 1/2
GND – Digital ground
EMPH – Yellow LED on indicates module is performing de-emphasis on Channel 1/2
8023_01r1
0
1
2
3 4
5 6 7
8
9
A
B CD E F
0
1
2
3 4
5 6 7
8
9
A
B CD E F
16-position
Rotary switch for
Channel 3/4 Mode
32 – Green LED on indicates active sample rate on Channel 3/4
44.1 – Green LED on indicates active sample rate on Channel 3/4
48 – Green LED on indicates active sample rate on Channel 3/4
EMPH – Yellow LED on indicates module is performing de-emphasis on Channel 3/4
REM OVER – Yellow LED on indicates local settings/jumpers overridden by remote control
CH1/2
CH3/4