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Preface
xvi
TDS 684A, TDS 744A, & TDS 784A Service Manual
H Diagrams contains a block diagram and an interconnection diagram useful
for isolating failed modules.
H Mechanical Parts List includes a table of all replaceable modules, their
descriptions, and their Tektronix part numbers.
Manual Conventions
This manual uses certain conventions which you should become familiar with
before doing service.
Throughout this manual, any replaceable component, assembly, or part of these
Digitizing Oscilloscopes is referred to generically as a module. In general, a
module is an assembly, like a circuit board, rather than a component, like a
resistor or an integrated circuit. Sometimes a single component is a module; for
example, each chassis part of the oscilloscope is a module.
Symbols and terms related to safety appear in the Safety Summary found at the
beginning of this manual.
Besides the symbols related to safety, this manual uses the following symbols:
STOP. The stop labels information which must be read in order to correctly do
service and to avoid incorrectly using or applying service procedures.
The clock icon labels procedure steps which require a pause to wait for
the oscilloscope to complete some operation before you can continue.
Various icons such as the example icon at the left are used in procedures
to help identify certain readouts and menu functions on screen.
Related Manuals
The TDS 684A and 7XXA Digitizing Oscilloscopes come with the following
manuals:
TDS 684A, TDS 744A, & 784A User Manual (Tektronix part number
070-8991-XX) contains a tutorial to quickly show you how to operate the
TDS 684A and 7XXA Digitizing Oscilloscopes and an in depth discussion of
how to more completely use their features. Applications are also discussed.
TDS 684A, TDS 744A, & TDS 784A Reference (Tektronix part number
070-8999-XX) contains a brief overview of oscilloscope operation.
Modules
Safety
Symbols