Acer K137 - Manual (Page 8)

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First things first
Usage Notes
Do:
• Turn off the product before cleaning.
• Use a soft cloth moistened with mild detergent to clean the display
housing.
• Disconnect the power plug from AC outlet if the product is not being used
for a long period of time.
Don't:
• Block the slots and openings on the unit provided for ventilation.
• Use abrasive cleaners, waxes or solvents to clean the unit.
• Use under the following conditions:
• In extremely hot, cold or humid environments.
• In areas susceptible to excessive dust and dirt.
• Near any appliance that generates a strong magnetic field.
• Place In direct sunlight.
Precautions
Follow all warnings, precautions and maintenance as recommended in this
user's guide to maximize the life of your unit.
Warning:
• Do not look into the projector's lens when the light is on. The bright may hurt your
eyes.
• To reduce the risk of fire or electric shock, do not expose this product to rain or
moisture.
• Please do not open or disassemble the product as this may cause electric shock.
• When switching the projector off, please ensure the projector completes its cooling
cycle before disconnecting power.
• Turn on the projector first and then the signal sources.
• Do not use lens cap when projector is in operation.