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afterdawn.com > forums > archived forums > xbox - hardware boot discussion > led modding help
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led modding help
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brando151
Junior Member
_ 		13. May 2008 @ 08:14 _ Link to this message    Send private message to this user   
I just did a mod on one of my 2 xbox consoles and i put red leds in the top so the jewl would glow red and so i came to my other one and i wanted it blue i have 3mm blue leds 3.5v 40mA and i was using 8 of them but when i modded it all up and hooked it up to power(molex) the leds lit up bright and then burnt out one by one and im not to good with working out resistors and all the calculators iv been to arnt much help at all. So i need to know what resistor should i use to lower the current flowing through a little so they dont fry every time

Cheers
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CopperKid
Senior Member
_ 		25. May 2008 @ 10:19 _ Link to this message    Send private message to this user   
You need to post the specs of the leds.

Also which leg are you feeding from the 12v or the 5v?
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brando151
Junior Member
_ 		26. May 2008 @ 02:19 _ Link to this message    Send private message to this user   
I only got a little slip with the leds on what they are it has on it:
RED light emitting diodes 3mm
Tested to 50mA current
1volt to 4.8volts 50mA

I was hooking up 8 to the 12v which goes to the hard drive (molex cable) i was hooking the longer end the positive leg to the positive coming out of the molex
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CopperKid
Senior Member
_ 		26. May 2008 @ 10:02 _ Link to this message    Send private message to this user   
Use the 5 volt leg and a 15 ohm 1/2 watt resistor they are a buck for 5 at radio shack.
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XBOX Halo Ed. = DuoX2 w/250gb HD
Xbox 360 Red Elite 120GB HDD = no-stealth 1.6 & XBReboot V3 & 1TB usb hdd
PS2 Slim = freemcboot v1.8 - PSP Black Slim = 5.00m33-6
Wii = w/ Blue XCM ii-case, Wiikey2 & softmodded
jgdrag
Suspended due to non-functional email address
_ 		31. May 2008 @ 23:36 _ Link to this message    Send private message to this user   
Did you hook them up series or parralell?
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C4RN1
Senior Member

3 product reviews
_ 		3. June 2008 @ 11:26 _ Link to this message    Send private message to this user   
Google led calculator you get something like this.

http://www.hebeiltd.com.cn/?p=zz.led.resistor.calculator

Use common sense, you're not going to be able to run a 4.8v led from a 5v source without a resistor.

Here's a pretty good writeup http://www.llamma.com/xbox/Mods/xbox_jewel_led_mod.htm
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This message has been edited since posting. Last time this message was edited on 3. June 2008 @ 17:45
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