Flat Panel Display Cleaning; Table 4-1: External Inspection Checklist - Tektronix MSO70000 Series Service Manual

Flat Panel Display Cleaning

MSO70000/C, DSA70000B/C, DPO70000B/C, DPO7000, MSO5000, DPO5000 Series
Inspection – Exterior. Inspect the outside of the instrument for damage, wear,
and missing parts. (See Table 4-1.) Immediately repair defects that could cause
personal injury or lead to further damage to the instrument.

Table 4-1: External inspection checklist

Item
Cabinet, front panel, and
cover
Front-panel knobs
Connectors
Carrying handle, and
cabinet feet
Accessories
The display is a soft plastic display and must be treated with care during cleaning.
CAUTION.
Improper cleaning agents or methods can damage the flat panel
display.
Avoid using abrasive cleaners or commercial glass cleaners to clean the display
surface.
Avoid spraying liquids directly on the display surface. Avoid scrubbing the
display with excessive force.
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).
If the display is very dirty, moisten the wipe with distilled water or a 75%
isopropyl alcohol solution and gently rub the display surface. Avoid using excess
force or you may damage the plastic display surface.
CAUTION.
To prevent getting moisture inside the instrument during external
cleaning, use only enough liquid to dampen the cloth or applicator.
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
Maintenance
Repair action
Repair or replace defective
module
Repair or replace missing or
defective knobs
Repair or replace defective
modules. Clear or wash out
dirt
Repair or replace defective
module
Repair or replace damaged
or missing items, frayed
cables, and defective
modules
4–3