Samsung JS8500 E-Manual page 165

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The 3D glasses may not work properly due to interference from other 3D products or electronic
devices that operate on the 2.4 GHz frequency such as a microwave oven or Internet AP. If
the 3D function malfunctions due to interference, please move all other electronic or wireless
communication devices as far away from the glasses and the TV as possible.
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The vividness of the image may appear degraded if you view 3D video in a place that is exposed
to direct sunlight or illumination.
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The 3D glasses may malfunction if there is an electric field or metallic object such as a steel
plate nearby. Keep the glasses as far away as possible from electric fields and metallic objects.
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With SSG-3570 model glasses, the glasses may power off if you remain stationary while viewing
3D video for an extended period of time.
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With SSG-3570 model glasses, if the 3D glasses do not function immediately after you put them
on when the TV is in 3D mode, take them off and then put them back on.
Caution
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IMPORTANT HEALTH AND SAFETY INFORMATION FOR 3D IMAGES. READ THE FOLLOWING
CAUTIONS BEFORE YOU OR YOUR CHILD USE THE 3D FUNCTION.
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Adults should frequently check on children who are using the 3D function. If there are any
complaints of tired eyes, headaches, dizziness, or nausea, stop the child from viewing the 3D TV
and ensure that they rest.
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Do not use the 3D glasses for other purposes such as general wear, sunglasses, protective
goggles, etc.
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Some viewers may experience discomfort such as dizziness, nausea, and headaches while
viewing 3D TV. If you experience any of these symptoms, stop viewing the 3D TV, remove the
3D glasses, and rest for awhile.
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Watching 3D pictures for an extended period of time may cause eye strain. If you experience any
eye strain, stop viewing the 3D TV, remove the 3D glasses, and rest for awhile.