Grass Valley 8920ADC v.2.0.1A - Manual (Page 11)

8920ADC Instruction Manual 11
Power Up
Power Up
The front LED indicators and configuration switches are illustrated in
Figure 4 . 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 valid input and reference signals
connected, the green PWR LED and the green LOCK LED should be on.
Figure 4. Operation Indicator LEDs
A red FAULT LED indicates an error situation and, with the other LEDs,
can indicate the operational conditions presented in
Table 2 . The table
describes signal output and LED indications for various input/reference
combinations and user settings.
Table 2. Indicator LEDs and Conditions Indicated
LED Indication Condition
FAULT
(red)
Off Normal operation.
On continuously Module has detected an internal fault.
Flashing Reference input is faulty or not present.
COMM
(yellow)
Off No activity on frame communication bus.
Long flash Location Command received by the module from a remote control system.
Short flash Activity present on the frame communication bus.
CONF
(yellow)
Off Module is in normal operating mode.
On continuously
Module is initializing, changing operating modes or updating firmware. Simulta-
neous CONF and FAULT LEDs on indicate FPGA load error.
Flashing Indicates rate of change of paddle-controlled analog setting.
PWR
(green)
Off No power to module or module’s DC/DC converter failed.
On continuously Normal operation, module is powered.
Left In
Clip (red)
Left In > -20dBFS (green)
Right In > -20dBFS (green)
Right In
Clip (red)
FAULT (red)
COMM (yellow)
CONF (yellow)
PWR (green)
REM OVER (yellow)
LOCK (green)
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