Introduction 7
1
Introduction
Scope
Organization
This manual contains information for troubleshooting and repairing to the component level the following 2-kilowatt power
supplies.
• Agilent Series 657xA manually programmable (bench), and
• Agilent Series 667xA GPIB programmable (system) supplies.
The remaining chapters of this manual are organized as follows:
Chapter Description
Chapter 2 Verification procedures to determine the performance level of the supply either before or after repair.
Chapter 3 Troubleshooting procedures for isolating a problem, procedures for replacing the defective component
and, if required, post-repair calibration and EEPROM initialization procedures.
Chapter 4 Principles of power supply operation on a block-diagram level.
Chapter 5 Replaceable parts, including parts ordering information.
Chapter 6 Diagrams, including schematics, component location drawings, and troubleshooting test points.
Appendix A Backdating information for power supplies with serial numbers below those listed in the title page of
this manual.
Related Documents
Change Sheet
There may or may not be a Manual Change sheet included with this manual (see Manual Revisions). If one is included, be
sure to examine it for changes to this manual.
Operating Manual
Each power supply is shipped with an operating manual (see Replaceable Parts, Chapter 5 for part numbers) that covers the
following topics:
• Options, accessories, specifications, supplementary characteristics, output characteristic curve, typical output
impedance curves.
• Connecting the power cord, load, and remote sensing.
• Connecting power supplies in series or autoparallel.
• Connecting the remote controller and setting the GPIB address.
• Configuring the digital port for remote inhibit, relay link, or digital I/O operation.
• Connecting the analog port for external voltage programming control.
• Turn-on tests, including selftest errors and runtime errors.
• Front panel operation.
• SCPI programming, an introduction to syntax, language dictionary, and status register operation.
• Compatibility-language programming for operation with Agilent Series 603xA power supplies.
• Replacement of line fuse and conversion of line voltage.
• Calibration procedure (front panel and remote).
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