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Maintanence
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 perform 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.
Exterior cleaning (other than display)
Clean the exterior surfaces of the chassis with a dry lint-free cloth or a soft-bristle brush. If any dirt remains, use a cloth or swab dipped in
a 75% isopropyl alcohol solution. Use a swab to clean narrow spaces around controls and connectors. Do not use abrasive compounds on
any part of the chassis that may damage the chassis.
Clean the On/Standby switch using a cleaning towel dampened with deionized water. Do not spray or wet the switch itself.
CAUTION: Avoid the use of chemical cleaning agents which might damage the plastics used in this instrument. Use only
deionized water when cleaning the front-panel buttons. Use a 75% isopropyl alcohol solution as a cleaner for cabinet parts. Before
using any other type of cleaner, consult your Tektronix Service Center or representative.
Inspection - Exterior. Inspect the outside of the instrument for damage, wear, and missing parts. Immediately repair defects that could
cause personal injury or lead to further damage to the instrument.
Table 4: External inspection checklist
Item
Cabinet, front panel, and cover
Front-panel knobs
Connectors
Carrying handle and cabinet feet
Accessories
Flat panel display cleaning
Clean the flat panel display surface by gently rubbing the display with a clean-room wipe (such as Wypall Medium Duty Wipes, #05701,
available from Kimberly-Clark Corporation), or an abrasive-free cleaning cloth.
If the display is very dirty, moisten the wipeor cloth with distilled water, a 75% isopropyl alcohol solution, or standard glass cleaner, and
gently rub the display surface. Use only enough liquid to dampen the cloth or wipe. Avoid using excess force or you may damage the
display surface.
CAUTION: Improper cleaning agents or methods can damage the flat panel display.
•
Do not use abrasive cleaners or surface cleaners to clean the display.
•
Do not spray liquids directly on the display surface.
MSO24, MSO22 2 Series Mixed Signal Oscilloscopes Quick Start Manual
Inspect for
Cracks, scratches, deformations, damaged
hardware
Missing, damaged, or loose knobs
Broken shells, cracked insulation, and
deformed contacts. Dirt in connectors
Correct operation
Missing items or parts of items, bent pins,
broken or frayed cables, and damaged
connectors
Repair action
Repair or replace defective module
Repair or replace missing or defective knobs
Repair or replace defective modules. Clear
or brush out dirt
Repair or replace defective module
Repair or replace damaged or missing items,
frayed cables, and defective modules
Maintanence
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