Agilent Technologies 2712A, 2948 manual HOW the Section is Organized, Safety Considerations

Model 8904A Service

Section 8

SERVICE

8-1.INTRODUCTIONTO THIS SECTION

This section contains information for troubleshooting Included are principles of operation, troubleshooting circuits.

and repairing the Multifunction Synthesizer. checks, and schematic diagrams for selected

8-2. HOW THE SECTION IS ORGANIZED

Section 8 contains the following:

0Safety Considerations

0Service Tools, Helps, and Information

0Schematic Symbology and Diagram Notes e Principles of Operation

0Troubleshooting

0Selected Schematic Diagrams and Component Locators (Foldouts SS1 through SS4)

8-3. SAFETY CONSIDERATIONS

Before Applying Power

Verify that the instrument is set to match the available line voltage and that the correct fuse is installed. An uninterrupted safety earth ground must be provided from the main power source to the instrument input wiring terminals, power cord, or supplied power cord set. In addition, verify that a common ground exists between the Multifunction Synthesizer and all test equipment.

Safety

Pay attention to warnings and cautions. They must be followed both for your protection and to avoid damage to the equipment.

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Who should service the instrument? Maintenance described herein is performed with power supplied to the instrument and with the protective covers removed. Such maintenance should be performed only by service- trained personnel who are aware of the hazards involved (for example, fire and electrical shock). When maintenance can be performed without power supplied, the power should be removed.

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