Tektronix 2200 TV Video Accessories User Manual


 
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Section 3 — Functional Description
Signal Paths
The video takes one of the following paths (See Figure 3-1):
The normal path is:
Input Module
Crosspoint Module
Keyer Module
Mixer Interface Module (A video, Key 1, and Key 2 only)
Mix/Wipe Module
Output Module
For reentry signals, the path is the same as the normal path except that
instead of going to the output module, the signal is routed to a reentry
module then back into the crosspoint module.
For effects send, the signals use the following path:
Input Module
Crosspoint Module
Keyer Module
Mixer Interface Module
Effects Send Module
Output Module
Effects Send can send any two of the following from either M/E: A video,
Key 1, Key 2. The video and key are sent out to a digital effects system and
returned to the switcher.
The return signal path for the modified video and key is:
Input module
Crosspoint Module
Effects Send Module
Mixer Interface Module
Mix/Wipe Module
Output Module