Servicing - Keysight Technologies N5290/1A PNA Series Service Manual

Safety and Regulatory Information
General Safety Considerations

Servicing

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.
Danger of explosion if battery is incorrectly replaced. Replace only
with the same or equivalent type recommended. Discard used
batteries according to local ordinances and/or manufacturer's
instructions.
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.
The power cord is connected to internal capacitors that may remain
live for 10 seconds after disconnecting the plug from its power
supply.
Install the instrument so that the detachable power cord is readily
identifiable and is easily reached by the operator. The detachable
power cord is the instrument disconnecting device. 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. Alternatively, an externally installed switch or
circuit breaker (which is readily identifiable and is easily reached by
the operator) may be used as a disconnecting device.
The opening of covers or removal of parts may expose dangerous
voltages. Disconnect the instrument from all voltage sources while
it is being opened.
Cleaning connectors with alcohol shall only be done with the
N5xxxB removed from the system, and in a well-ventilated area.
Allow all residual alcohol moisture to evaporate and the fumes to
dissipate prior to reconnecting the N5xxxB to the system.
Do not operate the analyzer with the outer cover removed for more than
30 minutes, as this could cause the analyzer to overheat which could
result in costly damage.
Keysight N5290/1A Service Guide 1-5