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Assembly and Disassembly Guidelines
5-8 Agilent E4418B/E4419B Service Guide
Assembly and Disassembly Guidelines
The guidelines in this section describe the removal and replacement of the major
assemblies in the Agilent E4418B and Agilent E4419B power meters.
Once an assembly has been replaced, refer to “Post-Repair Adjustments”, on page 3-3
to ensure that the correct performance tests and adjustments are carried out.
WARNING Refer to the safety symbols on the power meter and “Equipment
Operation”, on page -v before operating this power meter with the cover
removed. Failure to comply with the safety precautions can result in
severe or fatal injury.
WARNING Before carrying out any assembly or disassembly of the power meter
ensure that you disconnect the power cord. Even with the power meter
switched off there are potentially dangerous voltages present on the
power supply assembly.
Removing the Power Meter Cover
Remove the optional battery if fitted before removing the cover.
When replacing the power meter cover retighten the captive screws in the rear bezel
using a 9 lb/in T15 screw driver.