Grass Valley 8920DAC - Manual (Page 12)

6 8920DAC Instruction Manual
8920DAC AES/EBU to Analog Audio Converter
A red FAULT LED indicates an error situation and, when noted with the
other indicator LEDs, can indicate a specific problem area.
Table 2 describes
signal output and LED indications for the various input/reference combi-
nations and user settings.
Table 2. Indicator LEDs and Conditions Indicated
LED Indication Condition
Fault
(red)
Off Normal operation
On continuously Module has detected internal fault
Long flash Configuration problem: FPGA not responding to CPU, Input not present, AES/EBU out of lock
Short flash Other AES/EBU error
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
PWR
(green)
Off No power to module or module’s DC/DC converter failed
On continuously Normal operation, module is powered
32
(green)
Off Sample rate is not near 32 kHz
On Continuously Sample rate is 32 kHz ±400 ppm
Flashing Sample rate is 32 kHz ±4%
44.1
(green)
Off Sample rate is not near 44.1 kHz
On Continuously Sample rate is 44.1 kHz ±400 ppm
Flashing Sample rate is 44.1 kHz ±4%
48
(green)
Off Sample rate is not near 48 kHz
On Continuously Sample rate is 48 kHz ±400 ppm
Flashing Sample rate is 48 kHz ±4%
REM
OVR
(yellow)
Off Module configuration is by the module’s on-board switches and jumpers
On continuously Module configuration is by remote control and on-board switch settings are overridden
EMPH
(yellow)
Off Module is not performing de-emphasis
On continuously Module is performing de-emphasis