X75HD/X75SD Installation and Operation Manual 79
Chapter 4: System Installation and Connections
• Loop-thru disconnects the internal terminations, connects the
loop-through path and feeds the looped signal to the genlock
subsystem
• Split-525 disconnects the loop-through path and connects the
terminations to both ports (the genlock source becomes the 525
Genlock BNC connector)
• Split-625 disconnects the loop-through path and connects the
terminations to both ports (the genlock source becomes the 625
Genlock BNC connector)
The genlock signal must be a stable, time base-corrected source, such as
color bars or black burst. You can choose one of the following reference
sources for the frame:
• External reference input (either color black or tri-level sync)
• Freerun (the internal clock generated by the X75HD/SD)
• Any video input, including SD-SDI 1, SD-SDI 2, HD, or Analog
Video.
When the input video is selected as the reference source, the unit
runs in one clock system; therefore it is in the delay mode rather
than the synchronization mode.
The GL Standard Set parameter selects the operational video standard
mode for the genlock circuitry. You can manually force it to a specific
standard to match the source being fed into the Genlock port, or set it to
Auto to let X75 unit to automatically detect and configure its circuitry.
When a valid signal is connected to the genlock input, all video outputs
from the X75HD/SD will be genlocked to this signal. When this occurs,
the Genlock LED will be lit. When no external reference is supplied to
the genlock input, the unit will operate using its own internal clock
source.
Component Analog Video Outputs
These three BNC connectors, labeled B-Y, R-Y, and Y Out, are used to
output the signals to analog component devices, such as Betacam
VTRs.
Composite Video Output
This BNC connector, labeled Composite Out, provides processed,
synchronized versions of any of the input signals.
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