Panasonic CF-20 Series Operating Instructions And Reference Manual page 87

To clean areas other than the LCD panel
Wipe with a soft dry cloth such as gauze. When using detergent, dip a soft cloth in water-diluted detergent and wring it thoroughly.
Do not use benzene, thinner, or rubbing alcohol since it may adversely affect the surface causing discoloration, etc. Do not use commercially avail-
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able household cleaners and cosmetics, as they may contain components harmful to the surface.
Do not apply water or detergent directly to the computer, since liquid may enter inside of the computer and cause malfunction or damage.
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Use a soft, dry cloth to wipe droplets of water from the surface of the unit. Do not use a microwave to dry the unit. Doing so will result in mal-
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function or damage.
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