Maintenance
6-2
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
4. Nothing capable of generating or holding a static charge should be allowed
on the work station surface.
5. Handle circuit boards by the edges when possible.
6. Do not slide the circuit boards over any surface.
7. Avoid handling circuit boards in areas that have a floor or work-surface
covering capable of generating a static charge.
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 instrument. Inspection and
cleaning are done as preventive maintenance. Preventive maintenance, when
done regularly, may prevent instrument malfunction and enhance its reliability.
Preventive 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 instrument is used. A proper time to perform preventive maintenance
is just before instrument adjustment.
The cabinet helps keep dust out of the instrument and should normally be in
place when operating the instrument.
CSA7000B Series only: Small dust particles and oils can easily contaminate
optical connectors and reduce or block the signal. Take care to preserve the
integrity of the connectors by keeping them free of contamination.
CAUTION. To pr event loss of optical power or damage to the optical connectors,
keep the connectors clean at all times.
When cleaning the connectors with a swab, use gentle circular motions. Use only
high quality cleaning supplies that are non-abrasive and leave no residue.
To reduce the need for cleaning, immediately replace protective caps on the
optical connectors when not in use.
Use the following items to clean optical connectors:
H Clean, dust-free compressed air
H Fiber-optic cleaning swabs
General Care
Cleaning Optical
Connectors
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