Personal Safety Warnings; Electrostatic Discharge (Esd) Protection - Agilent Technologies N5242A Service Manual

PNA Series Microwave Network Analyzers
N5242A

Personal Safety Warnings

WARNING These servicing instructions are for use by qualified personnel only.
To avoid electrical shock, do not perform any servicing unless you
are qualified to do so.
WARNING The opening of covers or removal of parts is likely to expose
dangerous voltages. Disconnect the analyzer from all voltage sources
while it is being opened.
WARNING Procedures described in this document may be performed with
power supplied to the product while protective covers are removed.
Energy available at many points may, if contacted, result in personal
injury.
WARNING The power cord is connected to internal capacitors that may remain
live for 10 seconds after disconnecting the plug from its power
supply assembly. Wait at least 10 seconds, after disconnecting the
plug, before removing the covers.
The detachable power cord is the instrument disconnecting device.
WARNING
It disconnects the mains circuits from the mains supply before other
parts of the instrument. The front panel switch is only a standby
switch and is not a LINE switch (disconnecting device).
WARNING Danger of explosion if battery is incorrectly replaced. Replace only
with the same or equivalent type recommended. Discard used
batteries according to manufacturer's instructions.

Electrostatic Discharge (ESD) Protection

Many of the assemblies in this instrument are very susceptible to damage
CAUTION
from electrostatic discharge (ESD). Perform the following procedures only at
a static-safe workstation and wear a grounded wrist strap.
This is important. If not properly protected against, electrostatic discharge
can seriously damage your analyzer, resulting in costly repair.
To reduce the chance of electrostatic discharge, follow all of the
recommendations outlined in
1-6, for all of the procedures in this chapter.
Service Guide N5242-90001
"Electrostatic Discharge Protection" on page
Repair and Replacement Procedures
Personal Safety Warnings
7-3