Video processing – Tektronix Grass Valley 3000 User Manual
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Section 1 — System Overview
Video Processing
Input video and key signal selections are made by the Crosspoint
Matrix under control of the system Controller, according to
operator assignments entered via the Control Panel.
In addition to primary (external) video, secondary (internal)
sources such as Masks, M/E re-entry video, and optional Frame
Store are available as inputs to the crosspoint matrix.
Two sets of RGB signals may be applied per optional Dual RGB
input module. These inputs are forwarded to a Dual Chroma
Keyer module.
Keyers in each Mix/Effects bank provide outputs to the Effects
Loop crosspoints for sending outside the switcher for external
processing or for routing to the M/E mixers and wipe generators.
The Effects Send outputs can also be directed to the Frame Store
option for image capture. One optional Effects Loop Crosspoint
module services all three Mix/Effects banks.