Samsung SMT-4011 User Manual page 3

Use only a properly grounded plug and receptacle.
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Insert the power plug firmly so that it does not come loose.
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Do not excessively bend the plug and wire nor place heavy objects
upon them, which could cause damage.
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Do not connect too many extension cords or plugs to one outlet.
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Do not disconnect the power cord while using the LCD monitor.
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Do not use the power cord when the connector or plug is dusty.
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To disconnect the apparatus from the mains, the plug must be
pulled out from the mains socket, therefore the mains plug shall be
readily operable.
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Installation