Status Indicators
The status indicator lights provide visual feedback on the current mode and operating
conditions of the unit.
Genlock
This light indicates the current status of the external genlock source. If the unit is
configured to Auto Genlock mode, this indicator will be lit as long as a stable genlock
source is connected to the unit. If no genlock source is present, the unit will
automatically switch to Internal Genlock mode, and this indicator will flash.
If the unit is configured to Internal Genlock mode, it will operate on its own internal
crystal, and this indicator will be unlit.
EDH
This light indicates the current configuration and status of Error Detection Handling
(EDH) in the input Serial Digital video stream. This indicator is unlit when EDH
Detection is turned off in the unit.
This indicator will flash briefly when EDH Detection is enabled and EDH errors have
been detected and not yet cleared by the operator. The actual count of these errors is
reported in the EDH Error Count menu option.
TBC
This light indicates whether or not the composite input signal is being time base
corrected by the unit’s TBC circuitry. If the unit is in Synch mode, the internal TBC is
not active, and this indicator will be off. If the unit is in TBC mode, the unit will time
base correct the input signal (generally for heterodyned signals from sources such as a
VTR), and this indicator will be lit. If the unit is in Auto-Switch mode, the unit will
sense the incoming composite video signal and select between Synch and TBC modes
automatically; in this mode, the indicator will flash when the TBC is active.
Autotrack
This light indicates whether or not the audio Auto Track mode is enabled. When
enabled, this indicator will be lit, and the unit will automatically delay the audio data
to match the delay of the video data through the synchronizer (up to 4 fields). This
indicator will be off when Auto Track is disabled.
DigiDuplex
This light indicates whether or not the unit is in DigiDuplex mode. In DigiDuplex
mode, the indicator is lit, and the unit’s SDI video input is routed to the analog video
outputs, while the selected analog video input is simultaneously synchronized and
sent to the SDI output. With an audio-equipped unit, conversion between digital and
analog audio is handled in similar fashion, simultaneously with the video. This
indicator is unlit when DigiDuplex mode is off. See Appendix E, “DigiDuplex
Mode”, for a detailed explanation of DigiDuplex mode and its settings.
Option
This light indicates the status and/or configuration of the currently installed option
card module (if any). The meaning of this indicator varies depending on the particular
option installed; please see the documentation for your option module for further
details.
14
DPS-475/575 Service Manual
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