Tektronix Grass Valley 4000, Installation And Service

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Section 3 — Functional Description
Signal Processor Frame
This section begins with a general description of each frame module and board
type. The section to follow continues with full functional descriptions of each
module or board.
In general, “module” refers to a circuit board that plugs into a slot in the frame into
the main motherboard. A “board” refers to a mezzanine that mounts on top of
another circuit board. Included in the descriptions are the input and output signals
and the microprocessor(s) that control that specific module. Unless otherwise
indicated in the description, all modules and mezzanine boards with the same part
number are interchangeable.
For the video modules the descriptions answer the following questions:
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What does the module do?
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What are the input signals?
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What are the output signals?
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Which microprocessors are used in each area of the module?
For the processor modules, the control panel and other non-video modules:
■
A description of what the module does.
Frame Module Locations
The modules are located in four “bays” referred to as A,B C and D.
Each module has a six-digit assembly number followed by a two-digit version
number and letter to identify it. For example the Sync Generator Module is
numbered 064801-XX with a letter following the dash number. It may also be
referred to as the 801 Module. This number can be found on the silk screen in
different locations on each module circuit board.
On the following pages refer to the figures listed below for the module locations in
each bay.
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Figure 3-3 - Upper Front Bay A Module Locations (All Models)
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Figure 3-4 - Lower Front Bay B Modules - Model 4000-2A/B (factory shipped
before January, 1996)
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Figure 3-5 - Lower Front Bay B Modules - All models (factory shipped after
January, 1996)
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Figure 3-6 - Upper Rear Bay C Module Locations (All Models)
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Figure 3-7 - Lower Rear Bay D Module Locations (All Models)