3. MAINTENANCE
Field Maintenance should be limited to front panel adjustments, and external cleaning. Any
action that requires opening the monitor chassis should be deferred to the depot or factory.
3.1 PREVENTIVE
MAINTENANCE
The only periodic maintenance recommended is EXTERIOR SURFACE cleaning when
necessary.
3.1.1 Air
Filter
Maintenance
Depending on the environment, the air filters on the rear panel should be inspected
periodically and cleaned as required with clean, dry, low pressure air or rinse with water and
dried thoroughly.
3.1.2 Surface
Cleaning
The window and exterior surfaces may be cleaned with isopropyl alcohol followed by
distilled water rinse, applied with a soft cloth to avoid scratching the anti-reflective coating
on the glass panel.
NOTE: INTERIOR CLEANING OF THE MONITOR IS NEITHER
REQUIRED NOR RECOMMENDED.
3.1.3 Image
Persistence
Image persistence is the occurrence of a ghost image that remains on the display screen even
after the display monitor has been turned off. Unlike cathode ray tube monitors that
permanently burn the image into the phosphors, with liquid crystal displays, image
persistence is not permanent. LCD’s suffering from image persistence can be cleared by
turning off the display monitor for a period equivalent to the duration in time that the
offending image was displayed. If the image was displayed for one hour, turn the monitor
off for one hour to erase the ghost image.
NOTE: The use of a screen saver is recommended whenever the
screen is idle.
3.2 CORRECTIVE
MAINTENANCE
Any corrective maintenance should be deferred to the depot or factory.
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