Samsung PN43D490A1D E-Manual page 151

● 3D Active Glasses from Samsung's previous product (IR type) or other
manufacturers are not supported.
● When the TV is initially powered on, it may take some time until the 3D
display is optimized.
● The 3D Active Glasses may not work properly if there are any other 3D
product or electronic devices turned on near the glasses or TV. If there is a
problem, keep other electronic devices as far away as possible from the 3D
Active Glasses.
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