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WN-5230-S VideoWall User’s Guide
71
Air Filter Replacement, Rear Access
1. Turn off the power
Switch off the WN-5230-S using the remote and allow the
cooling cycle to complete (30 seconds) before switching
off the AC power at the rear-panel switch.
2. Unplug power cord
Remove the AC power cord from the display.
3. Remove the rear
access cover
Unfasten the 9 quarter-turn screws on the rear access
cover and remove the cover.
4. Replace the air
filter
The air filter is on the left side of the display. To remove it,
pull it to the right.
Cleaning the Screen and Mirrors
The best way to clean screens and mirrors is with clean, dry,
compressed air and try to blow off the debris. If this does not work (a
finger print, for instance) use a good quality optical cleaning solution
and lint-free paper wipes or cheesecloth. Note: Apply the liquid
cleaning agent to the tissue first; don’t spray it directly on the mirror or
screen. This will sometimes appear to leave a light residue, but it will
buff off, leaving a streak-free mirror. Because the mirrors are front-
surface mirrors, use care when cleaning them.
Some representative cleaning products are:
• Zero Charge Screen & Keyboard Cleaner, made by Tech
Spray, Amarillo, Texas; (803) 372-8523
• Klear Screen Laptop & Computer Screen Cleaner, by
Merridrew Enterprises, Danville, California; (510) 838-8774
• Sparkle, made by Paulson and Roles, Portland, Oregon; (503)
282-3289
The inside of the screen is harder to clean; usually the problem on the
inside is finger prints. Do not use cleaning products on the inside of the
screen. Instead, use a little isopropyl alcohol on a piece of cheese
cloth, and don’t press hard. Don’t buff it off. Let the alcohol evaporate.
CAUTION The screen is a laminate of two pieces. If excess liquid runs
down the screen and collects at the bottom, it can wick up
between the two parts. This is nearly impossible to correct.