Well I haven't (as yet anyway!) ever found any exceptions to an infra red remote control not showing on a digital camera / camcorders LCD screen when any button on it is pressed as all "digital" cameras image sensors are sensitive to infra red signals, the indication seen on the LCD being a faint small white blob, when carrying out this test though the control shouldn't be too far away from the camera in a bright'ish environment or you wont see anything, this test is also used sometimes as a simple non technical indication as to whether or not a DVD / CD player laser is still operating, at least in a fashion anyway, as when their power drops off it will still indicate as mentioned but thats when they start to be very choosy about what discs they will play. (another story!!) If you do not have a simple test meter to check if voltage is appearing across the LED when a button is pressed then the only option you have is to transfer one over from any other old controls you might have laying about, as these type of LED's are effectively all the same as far as their spec goes, watch you dont get the two connections accidentally reversed or it wont work. Cant really advise on the appearance of the one you have being cracked as it depends on how good the encapsulation was done at time of manufacture, as some types can look as though they are internally split whereas others might well be!

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