TDS 340A, TDS 360 & TDS 380 Technical Reference
6–1
Maintenance
This chapter describes how to inspect, clean, remove, and troubleshoot the
oscilloscope at the module level.
Preventive maintenance, when done regularly, may prevent oscilloscope
malfunction and enhance its reliability. Preventive maintenance consists of
visually inspecting and cleaning the oscilloscope and using general care when
operating it. How often to do maintenance depends on the severity of the
environment in which you use the oscilloscope. A proper time to perform
preventive maintenance is just before oscilloscope adjustment.
Preventing ESD
CAUTION. Static discharge can damage any semiconductor component in this
oscilloscope.
When performing any service which requires internal access to the oscilloscope,
adhere to the following precautions to avoid damaging internal modules and their
components due to electrostatic discharge (ESD).
1. Minimize handling of static-sensitive modules.
2. Transport and store static-sensitive modules in their static protected
containers. Label any package that contains static-sensitive modules.
3. Discharge the static voltage from your body by wearing a grounded antistatic
wrist strap while handling these modules. Do service of static-sensitive
modules only at a static-free work station.
4. Do not remove the oscilloscope cabinet unless you have met precaution
number 3, above. Consider all internal modules static-sensitive.
5. Nothing capable of generating or holding a static charge should be allowed
on the work station surface.
6. Handle circuit boards by the edges when possible.
7. Do not slide the modules over any surface.
8. Avoid handling modules in areas that have a floor or work-surface covering
capable of generating a static charge.
9. Do not use high-velocity compressed air when cleaning dust from modules.
Precautions
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