Radio Shack LK-1500 - Manual (Page 68)

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Avoid heat, humidity or direct sunlight.
Do not overexpose the instrument to direct sunlight, or place it near an air conditioner, or in any extremely hot place.
Do not use lacquer, thinner or similar chemicals for cleaning.
Clean the keyboard with a soft cloth dampened in a weak solution of water and a neutral detergent. Soak the cloth in the solution
and squeeze until it is almost dry.
Avoid use in areas subjected to temperature extremes.
Extremely high or low temperature can cause figures on the LCD screen to become dim and difficult to read. This condition
should correct itself when the keyboard is brought back to normal temperature.
NOTE
• You may notice lines in the finish of the case of this keyboard. These lines are a result of the molding process used to shape
the plastic of the case. They are not cracks or breaks in the plastic, and are no cause for concern.
Care of your keyboard
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