TDS 420A, TDS 430A & TDS 460A Service Manual
4-15
Performance Tests
This section contains procedures for checking that the TDS 400A Digitizing
Oscilloscopes perform as warranted.
The procedures are arranged in four logical groupings: Signal Acquisition System
Checks, Time Base System Checks, T riggering System Checks, and Output Ports
Checks. They check all the characteristics that are designated as checked in
Chapter 1, Specifications. (The characteristics that are checked appear in
boldface type under Warranted Characteristics in Chapter 1.) You can use the
form at the end of this section as a test record.
The procedures are arranged in four logical groupings: Signal Acquisition System
Checks, Time Base System Checks, T riggering System Checks, and Output Ports
Checks. They check all the characteristics that are designated as checked in
Chapter 1, Specifications. (The characteristics that are checked appear in
boldface type under Warranted Characteristics in Chapter 1.) You can use the
form at the end of this section as a test record.
Read Performance Verification Procedures that start on page NO TAG. Also, if
you are not familiar with operating this digitizing oscilloscope, read Operating
Information in Chapter 2 of the service manual or read the user manual before
doing any of these procedures.
STOP. These procedures extend the confidence level provided by the basic
procedures described on page 4--5. The basic procedures should be done first,
and then these pr ocedures performed if desired.
Prerequisites
The tests in this chapter comprise an extensive, valid confirmation of perfor-
mance and functionality when the following requirements are met:
H The cabinet must be installed on the digitizing oscilloscope.
H You must have performed and passed the procedures under Self Tests, found
on page 4--5, and those under Functional Tests, found on page 4--7.
H A signal-path compensation must have been done within the recommended
calibration interval and at a temperature within ±5_ C of the present
operating temperature. (If at the time you did the prerequisite Self Tests, the
temperature was within the limits just stated, consider this prerequisite met.)
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