Samsung SyncMaster XL30 - Manual (Page 6)

a slightly moistened, soft fabric.
Do not spray water or detergent directly onto the monitor.
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This may cause damage, electric shock or fire.
Use the recommended detergent with a smooth cloth.
If the connector between the plug and the pin is dusty or dirty, clean it
properly using a dry cloth.
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A dirty connector may cause electric shock or fire.
Make sure to unplug the power cord before cleaning the product.
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Otherwise, this may cause electric shock or fire.
Unplug the power cord from the power outlet and wipe the product
using a soft, dry cloth.
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Do not use any chemicals such as wax, benzene, alcohol, thinners,
insecticide, air freshener, lubricant or detergent.
Others
Do not remove the cover (or back).
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This may cause electric shock or fire.
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Refer to a qualified servicing company.
If your monitor does not operate normally - in particular, if there is any
unusual sound or smell coming from the monitor - unplug it immediately
and contact an authorized dealer or the Service Center .
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This may cause electric shock or fire.
Keep the product away from places exposed to oil, smoke or moisture;