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TDS 684A, TDS 744A, & TDS 784A Service Manual
xv
Preface
This preface contains information needed to properly use this manual to service
the TDS 684A and 7XXA Digitizing Oscilloscopes, as well as general informa-
tion critical to safe and effective servicing of this oscilloscope.
Manual Structure
This manual is divided into sections, such as Specification and Theory of
Operation. Further, it is divided into subsections, such as Product Description
and Removal and Installation Procedures.
Sections containing procedures also contain introductions to those procedures.
Be sure to read these introductions because they provide information needed to
do the service correctly and efficiently. The following is a brief description of
each manual section.
H Specification contains a product description of the TDS 684A and
7XXA Digitizing Oscilloscopes and tables of the characteristics and
descriptions that apply to it.
H Operating Information includes general information and operating instruc-
tions at the level needed to safely power on and service this oscilloscope. A
statement of the service strategy that this manual supports, and instructions
for shipment of the Digitizing Oscilloscopes are found in this section.
H Theory of Operation contains circuit descriptions that support general service
and fault isolation down to the module level.
H Performance Verification contains a collection of procedures for confirming
that these Digitizing Oscilloscopes function properly and meet warranted
limits.
H Adjustment Procedures contains a collection of procedures for adjusting
these Digitizing Oscilloscopes to meet warranted limits.
H Maintenance contains information and procedures for doing preventive and
corrective maintenance of these Digitizing Oscilloscopes. Instructions for
cleaning, for module removal and installation, and for fault isolation to a
module are found here.
H Options contains information on servicing any of the factory-installed
options that may be present in your oscilloscope.
H Electrical Parts List contains a statement referring you to Mechanical
Replaceable Parts, where both electrical and mechanical modules are listed.