How to Check an Infrared Remote
An infrared remote is a marvel of modern science and a great convenience to use. The IR light emitter beam is invisible, so it is impossible to tell whether the remote is working or not just by looking at the end where the light comes out. To find out whether the infrared remote is working doesn't require taking it apart. This can be revealed by following a few simple steps at home using any digital camera that has an LCD screen.
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Instructions
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Remove the batteries from the infrared remote and replace them with new batteries.
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Charge the digital camera's batteries so that it has a full charge.
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Turn on the digital camera. Hold the digital camera in front of you with your left hand so that you are looking at the LCD screen on the camera's back.
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Hold the infrared remote in your right hand so that the sensor at the front of the infrared remote is aimed at the lens on the front of the digital camera.
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Press any button on the infrared remote with your right hand while looking at the LCD screen of the digital camera.
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Look for a small white dot to appear and disappear in sync with pressing the button on the infrared remote. This is the light being emitted from the infrared sensor and means that the infrared remote is working.
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Tips & Warnings
A dirty IR sensor at the front of the remote can inhibit its working at its best. Lightly clean the IR sensor with a lint free cloth to remove dirt and dust.
Hitting the infrared remote against a hard object like a table top to try and get it working can break the IR sensor completely.
