Tektronix RSA3300A, Service Manual

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Maintenance
6- 4
RSA3303A & RSA3308A Service Manual
Inspection and Cleaning
Inspection and Cleaning
describes how to inspect for dirt and damage. It also
describes how to clean the exterior and interior of the analyzer. Inspection and
cleaning are done as preventive maintenance. Preventive maintenance, when
done regularly, may prevent analyzer malfunction and enhance its reliability.
Preventive maintenance consists of visually inspecting and cleaning the analyzer
and using general care when operating it.
How often to do maintenance depends on the severity of the environment in
which the analyzer is used. A proper time to perform preventive maintenance is
just before analyzer adjustment.
The cabinet helps keep dust out of the analyzer and should normally be in place
when operating the analyzer.
Inspect and clean the analyzer as often as operating conditions require. The
collection of dirt on components inside can cause them to overheat and break-
down. (Dirt acts as an insulating blanket, preventing efficient heat dissipation.)
Dirt also provides an electrical conduction path that could cause an analyzer
failure, especially under high-humidity conditions.
CAUTION.
Avoid the use of chemical cleaning agents, which might damage the
plastics used in this analyzer. Use only deionized water when cleaning the menu
buttons or front-panel buttons. Use a 75% isopropyl alcohol solution as a
cleaner and rinse with deionized water. Before using any other type of cleaner,
consult your Tektronix Service Center or representative.
General Care
Inspection and Cleaning
Procedures