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Help! leds with 3 wires in hot-swap

post #1 of 13
Thread Starter 
Hey guys-
I am wanting to change some green leds to red ones on a hot-swap cage. Turns out to be a pain in the butt. I took apart the unit easy enough, but a little surprised at what I found inside.
There are long button extender poles with leds in the end of them. Easy enough to pull the led out but the leds in the unit have 3 wires (red,white,green) and the red leds I bought only have 2 (positive and negative).

What is the 3rd wire on the led in the unit? maybe a multicolor led?
If anyones knows, to make it work would I hook two wires to the positive?
Did I just get the wrong led? the third lead just confused me...

HELP! tongue.gif

Green leds need to go
img1147ta.jpg

3 wire leds- 2 wire leds in the package... thinking.gif
img1387oi.jpg
MKG-Cosmos II
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post #2 of 13
You still hook up a standard led with two legs, just find out witch is neg and pos with a multimeter, you might need a resistor.
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post #3 of 13
personally, i like the contrast that the green provides.
i'm sorry i don't have much more to contribute.

perhaps it would help us more if you could provide a close up of what one of those connections looks like up close on one of the existing green LED's
i don't think it's a multicolor; those typically have four contact points.
post #4 of 13
Thread Starter 
hmm what is the third wire and what do I do with it?
img1388j.jpg
MKG-Cosmos II
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i7 920 DO oc'd to 4.25Ghz EVGA 3-way Sli Classified 2x480 SLI 3x2g Corsair CMG6GX3M3A2000C7 
Hard DriveOptical DriveCoolingOS
80g Intel ssd, 2x300g raptors (0), 2x1 TB RE3 (0 Pioneer Blu-Ray burner, 22x dvd burner custom loop Windows 7 64bit 
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LG W3000H, dell ultra-sharp 24" Ducky 'OCN' with brown hx1000 Cosmos II 
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MKG-Cosmos II
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80g Intel ssd, 2x300g raptors (0), 2x1 TB RE3 (0 Pioneer Blu-Ray burner, 22x dvd burner custom loop Windows 7 64bit 
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post #5 of 13
Those are dual color LEDs. One wire is a ground and the other two are the positive terminals for the different colors. You chose the color by changing which pin you connect to the positive supply.
    
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post #6 of 13
I've seen these before, the white is - and the 2 outer ones are +. What is the voltage rating for the red l.e.ds?
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post #7 of 13
Thread Starter 
so I would hook up both of the positive wires (green, red)to the positive, and the white to the neg?

img1391mt.jpg

img1392ia.jpg
Edited by bob808 - 5/14/12 at 8:47pm
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MKG-Cosmos II
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80g Intel ssd, 2x300g raptors (0), 2x1 TB RE3 (0 Pioneer Blu-Ray burner, 22x dvd burner custom loop Windows 7 64bit 
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LG W3000H, dell ultra-sharp 24" Ducky 'OCN' with brown hx1000 Cosmos II 
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post #8 of 13
Not really, I'm assuming that the green wire would be for the green part of the led and the red for the red part of the led. But you want the red led to always to be on, so I would try hooking the up the green and white wire to the red led . Or maybe even just switching the green and red wire sides on the stock led.
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120gb kingston 2TB seagate Dark rock pro 2 Windows 7 
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post #9 of 13
Thread Starter 
Ok. Thanks! I'll try that. + rep to you kind sir!

This thing is going to be hard to put back together rolleyes.gif I'll give it a go when I get home from work this evening.
MKG-Cosmos II
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 DO oc'd to 4.25Ghz EVGA 3-way Sli Classified 2x480 SLI 3x2g Corsair CMG6GX3M3A2000C7 
Hard DriveOptical DriveCoolingOS
80g Intel ssd, 2x300g raptors (0), 2x1 TB RE3 (0 Pioneer Blu-Ray burner, 22x dvd burner custom loop Windows 7 64bit 
MonitorKeyboardPowerCase
LG W3000H, dell ultra-sharp 24" Ducky 'OCN' with brown hx1000 Cosmos II 
MouseMouse Pad
mionix naos 5000 steelseries SX 
  hide details  
Reply
MKG-Cosmos II
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CPUMotherboardGraphicsRAM
i7 920 DO oc'd to 4.25Ghz EVGA 3-way Sli Classified 2x480 SLI 3x2g Corsair CMG6GX3M3A2000C7 
Hard DriveOptical DriveCoolingOS
80g Intel ssd, 2x300g raptors (0), 2x1 TB RE3 (0 Pioneer Blu-Ray burner, 22x dvd burner custom loop Windows 7 64bit 
MonitorKeyboardPowerCase
LG W3000H, dell ultra-sharp 24" Ducky 'OCN' with brown hx1000 Cosmos II 
MouseMouse Pad
mionix naos 5000 steelseries SX 
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post #10 of 13
Assuming those are green/red bi-colour LEDs, have you tried swapping the 2 non-ground wires over to see what happens?
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