WFM 1125 Option 0A/0B/0C/0D User Manual
C-1
Appendix C: Cleaning & Service
This appendix describes how to clean the exterior of the WFM 1125 Digital
Television Waveform Monitor. Regularly scheduled cleaning is not necessary for
the waveform monitor. However, when done regularly, cleaning may help
prevent instrument malfunction and may enhance its reliability.
Preventative maintenance consists of visually inspecting and cleaning the
instrument and using general care when operating it.
How often to do maintenance depends on the severity of the environment in
which the waveform monitor is used. Perform preventive maintenance just
before adjustment and/or calibration.
General Care
The cabinet helps keep dust out of the instrument and should be in place during
instrument operation. The optional front panel cover protects the front panel and
display from dust and damage. It is recommended to install the optional front
panel cover when storing or transporting the waveform monitor.
Inspection and Cleaning
Inspect and clean the waveform monitor as often as operating conditions require.
The collection of dirt on components inside can cause them to overheat and
breakdown. (Dirt acts as an insulating blanket, preventing efficient heat
dissipation.) Dirt also provides an electrical conduction path
that could cause
instrument failure, especially under high-humidity conditions.
CAUTION. Avoid the use of chemical cleaning agents which might damage the
plastics. Use only deionized water when cleaning the menu buttons or front-pan-
el buttons. For the rest of the instrument, 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.
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