Grass Valley 2020DAC D-To-A - Manual (Page 13)

2020DAC Instruction Manual 7
Power Up
A red FAULT LED indicates an error situation and, when noted with the
other indicator LEDs, can indicate a specific problem area.
Table 4 describes
signal output and LED indications for the various input/reference combi-
nations and user settings.
Note The 32, 44.1, and 48 kHz sample rate LEDs can all be out and the module can
still output audio. The LEDs only show the three sample rates to within 4% of
the nominal rate.
Table 4. Indicator LEDs and Conditions Indicated
LED Indication Condition
Fault
(red)
Off Normal operation
On continuously Module has detected internal fault
Long flash No input and the output is muted
Short flash
Errors present in either or both received AES streams preventing reliable reception of data
(including greater than 4% sample rate 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. (When solid on along
with Fault LED on, board has failed to load data.)
PWR (green)
Off No power to module or module’s DC/DC converter failed
On continuously Normal operation, module is powered
CH1/2 and CH3/4
32 (green)
Off Sample rate is not near 32 kHz (off by more than 4%)
On Continuously Sample rate is 32 kHz ±400 ppm
Flashing Sample rate is 32 kHz ±4%
CH1/2 and CH3/4
44.1 (green)
Off Sample rate is not near 44.1 kHz (off by more than 4%)
On Continuously Sample rate is 44.1 kHz ±400 ppm
Flashing Sample rate is 44.1 kHz ±4%
CH1/2 and CH3/4
48 (green)
Off Sample rate is not near 48 kHz (off by more than 4%)
On Continuously Sample rate is 48 kHz ±400 ppm
Flashing Sample rate is 48 kHz ±4%
CH1/2 and CH3/4
EMPH (yellow)
Off Module is not performing de-emphasis
On continuously Module is performing de-emphasis
REM OVR
(yellow)
Off Module configuration is through the module’s on-board switches and jumpers
On continuously
Module configuration is through remote control and on-board switches and jumpers are over-
ridden