Grass Valley 8920ADT User Manual
Page 13

8920ADT Instruction Manual
7
Power Up
Table 4. 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.
REM OVER
(yellow)
Off
Module configuration matches switch and jumper settings.
On continuously
Module configuration may not match switch and jumper settings. Control has been
remotely overridden.
REF LOCK
(green)
Off
Module does not detect a valid reference signal.
On continuously
Valid reference signal is present and module is locked to it.
TRK ENABLE
(yellow)
This LED is currently not used. It will be on continuously.
TRACKING
(green)
Off
Delay tracking input not present.
On continuously
Delay tracking input present.
L >-20 DBFS
(green)
Off
Left channel level is less than -20 dBFS.
On continuously
Left channel level is greater than -20 dBFS.
Flashing
Left channel level is transitioning through -20 dBFS
R >-20 DBFS
(green)
Off
Right channel level is less than -20 dBFS.
On continuously
Right channel level is greater than -20 dBFS.
Flashing
Right channel level is transitioning through -20 dBFS
LEFT CLIP
(red)
Off
Left channel digitized signal level is less than -0.5 dBFS.
On continuously
Left channel digitized signal level is greater than -0.5 dBFS.
Flashing
Left channel digitized signal level is transitioning through -0.5 dBFS.
RIGHT CLIP
(red)
Off
Right channel digitized signal level is less than -0.5 dBFS.
On continuously
Right channel digitized signal level is greater than -0.5 dBFS.
Flashing
Right channel digitized signal level is transitioning through -0.5 dBFS.