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Alarm External Indicator
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<blockquote data-quote="chrisc" data-source="post: 809030" data-attributes="member: 746"><p>1 - Take the unworking LED from the enclosure</p><p>2 - Check - is there a resistor attached to it, or do the wires just connect to it?</p><p>3 - Buy a 5mm LED, cost about R12, ask for a high-bright one</p><p>4 - If there is a resistor, also buy a 1k resistor and attach it to the longer of the pins of the LED (the +ve side)</p><p>5 - If not, attach the wires to the LED. If there is a resistor, one wire on the other side of the resistor, the other wire to the LED</p><p>6 - Arm the alarm. Does the light come on? If yes, close up. If no, reverse the connections to the LED (an LED is polarised)</p><p></p><p>Tip - insulate the connections</p></blockquote><p></p>
[QUOTE="chrisc, post: 809030, member: 746"] 1 - Take the unworking LED from the enclosure 2 - Check - is there a resistor attached to it, or do the wires just connect to it? 3 - Buy a 5mm LED, cost about R12, ask for a high-bright one 4 - If there is a resistor, also buy a 1k resistor and attach it to the longer of the pins of the LED (the +ve side) 5 - If not, attach the wires to the LED. If there is a resistor, one wire on the other side of the resistor, the other wire to the LED 6 - Arm the alarm. Does the light come on? If yes, close up. If no, reverse the connections to the LED (an LED is polarised) Tip - insulate the connections [/QUOTE]
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