3-35
Signal Processor Frame
Mix/Wipe Module (064803)
A Mix/Wipe Module is provided for each of the M/Es, and one for the DSK
(program/preset) bus. The Mix/Wipe Module uses the resultant video signals,
key signals and the wipe control signals to create a video output with all the
requested elements. The Mix/Wipe Module accomplishes the following:
■
Combines video signals, key signals, and the wipe solid signal to create the
program video
■
Interfaces to the Wipe Generators (one standard and one optional)
■
Does preview processing for that M/E
■
Converts output video from parallel to serial
The Mix/Wipe circuit board has connectors for two Wipe Mezzanine Boards and
one Preview Module.
The Mix/Wipe Module has its own microprocessor, program memory (flash
PROM), and dual port memory. The system processor sends information to the
dual port memory indicating what is to be done during the next field. The Mix/
Wipe processor reads this information and does the calculations necessary to
accomplish the operations and sends the information to the rest of the module and
the mezzanine boards.
The Mix/Wipe Module routes the output of each Wipe Mezzanine into the other
Wipe Mezzanine. This allows the mezzanine boards to do a mix or a NAM (Non
Additive Mix) between the outputs of the two mezzanine boards. See
for mezzanine board locations.
Wipe Mezzanine Board (064828)
The Wipe Mezzanines:
■
Create the wipe and preset pattern key control signals
The Wipe Mezzanine generates the wipe solid for all wipes including the matrix
wipe. The primary Wipe Mezzanine generates the wipe solid for the wipe. The
secondary wipe generator generates the wipe solid for the preset pattern. Each
Wipe Mezzanine Board can take in the wipe solid from the other Wipe Mezzanine
and do a mix or a NAM (Non Additive Mix) between its output and the other Wipe
Mezzanine’s output.
There is space on the Mix/Wipe Module for two Wipe Generator mezzanines. The
first Wipe Generator Mezzanine for each M/E is standard and can generate the
wipe and preset pattern key control signal. If only this mezzanine is installed, these
two signals are identical. If the second Wipe Generator Mezzanine is installed, that
mezzanine generates the preset pattern key signal which then may be different
than the wipe pattern.
Summary of Contents for Grass Valley 4000
Page 3: ...iii Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 4: ...iv Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 34: ...1 20 Section 1 System Overview ...
Page 138: ...2 104 Section 2 Installation ...
Page 196: ...3 58 Section 3 Functional Description ...
Page 286: ...Index 6 Index ...