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TDS 684A, TDS 744A, & TDS 784A Service Manual
4–1
Performance Verification Procedures
Two types of Performance Verification procedures can be performed on this
product; Brief Procedures and Performance Tests. You may not need to perform
all of these procedures, depending on what you want to accomplish.
H To rapidly confirm that the oscilloscope functions and was adjusted properly,
just do the brief procedures under Self Tests, which begin on page 4–5.
Advantages: These procedures are quick to do, require no external
equipment or signal sources, and perform extensive functional and accuracy
testing to provide high confidence that the oscilloscope will perform
properly. They can be used as a quick check before making a series of
important measurements.
H To further check functionality, first do the Self Tests just mentioned; then do
the brief procedures under Functional Tests that begin on page 4–7.
Advantages: These procedures require minimal additional time to perform,
require no additional equipment other than a standard-accessory probe, and
more completely test the internal hardware of the oscilloscope. They can be
used to quickly determine if the oscilloscope is suitable for putting into
service, such as when it is first received.
H If more extensive confirmation of performance is desired, do the Perform-
ance Tests, beginning on page 4–15, after doing the Functional and Self Tests
just referenced.
Advantages: These procedures add direct checking of warranted specifica-
tions. They require more time to perform and suitable test equipment is
required. (See Equipment Required beginning on page 4–16.)
If you are not familiar with operating this oscilloscope, read the TDS 684A, TDS
744A, & TDS 784A Reference (070-8999-XX) or the TDS 684A, TDS 744A, &
TDS 784A User Manual (070-8991-XX). These contain instructions that will
acquaint you with the use of the front-panel controls and the menu system.