Agilent Technologies 35670-90066 manual Troubleshooting the Analyzer, Safety Considerations

Warning

Caution

Troubleshooting the Analyzer

This chapter contains troubleshooting tests that can isolate most failures to the faulty assembly. The section ‘’How to troubleshoot the analyzer’’ tells you which test to start with based on the failure. The test you start with will either isolate the faulty assembly or send you to another test to continue troubleshooting.

Safety Considerations

The Agilent 35670A Dynamic Signal Analyzer is a Safety Class 1 instrument (provided with a protective earth terminal). Although the instrument has been designed in accordance with international safety standards, this manual contains information, cautions, and warnings that must be followed to ensure safe operation and retain the instrument in safe operating condition. Service must be performed by trained service personnel who are aware of the hazards involved (such as fire and electrical shock).

Any interruption of the protective (grounding) conductor inside or outside the analyzer, or disconnection of the protective earth terminal can expose operators to potentially dangerous voltages.

Under no circumstances should an operator remove any covers, screws, shields or in any other way access the interior of the Agilent 35670A Dynamic Signal Analyzer. There are no operator controls inside the analyzer.

Only fuses with the required current rating and of the specified type should be used for replacement. The use of repaired fuses or short circuiting the fuse holder is not permitted. Whenever it is likely that the protection offered by the fuse has been impaired, the analyzer must be made inoperative and secured against any unintended operation.

When power is removed from the Agilent 35670A Dynamic Signal Analyzer,

+225 volts are present in the display for approximately 5 seconds. Be extremely careful when working in proximity to this area during this time. The high voltage can cause serious personal injury if contacted.

Do not connect or disconnect ribbon cables with the power switch set to on ( l ). Power transients caused by connecting or disconnecting a cable can damage circuit assemblies.

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