390 Keysight NFA Series Noise Figure Analyzers Service Guide
Assembly Replacement Procedures
What You Will Find in This Chapter
Before Starting
Before starting to disassemble the instrument:
— Check that you are familiar with the safety symbols marked on the
instrument. And, read the general safety considerations and the safety note
definitions given in the front of this guide.
— The instrument contains static sensitive components. Read the section
entitled “ESD Information” on page 20.
Safety
The opening of covers or removal of parts is likely to expose
dangerous voltages. Disconnect the product from all voltage
sources while it is being opened.
The instrument contains potentially hazardous voltages. Refer to the
safety symbols on the instrument and the general safety
considerations at the beginning of this service guide before
operating the unit with the cover removed. Failure to heed the safety
precautions can result in severe or fatal injury.
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