Author Topic: Need your help People! (led sound mod)  (Read 1947 times)

Offline ApheX

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Need your help People! (led sound mod)
« on: July 15, 2008, 01:38:54 PM »
Ok, i've been modding a mates psp for him. been fine so far but i've been having some troble with the leds. i'm using the new sound board from wiredinput with red leds. i'm going to have 4 but for the moment i just need 2. for some reason they keep burning out.
i've checked to see if there is any place the could be a short but there is nothing i could see that could cause that. i'm using the 5v point just below the right specker connection and using the wifi swich as the ground. it all works but after a little while they burn out.

Do i need to add a resistor to the 5v point, say a 10ohms one. Hope you can help. :)

Offline folklord36

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Re: Need your help People! (led sound mod)
« Reply #1 on: July 15, 2008, 01:44:25 PM »
put more then 10 ohms on the out put of the board red leds suck they can only take 2.7 volts unlike the rest witch are typicly 3.7 and reds burn easy

Offline ApheX

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Re: Need your help People! (led sound mod)
« Reply #2 on: July 15, 2008, 01:53:27 PM »
nice one, i don't suppose you would know how much i would need? i only have 10ohm ones at the moment. could link a few up.

Offline Bhawan

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Re: Need your help People! (led sound mod)
« Reply #3 on: July 15, 2008, 02:16:53 PM »
try putting the leds in series instead of parallel and use no resistor it should work perfectly fine :tup:..... if you need a circuit diagram let me know....

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Offline ApheX

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Re: Need your help People! (led sound mod)
« Reply #4 on: July 15, 2008, 02:20:55 PM »
but wouldn't that mean one of the leds would be brighter than the other?

Offline folklord36

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Re: Need your help People! (led sound mod)
« Reply #5 on: July 15, 2008, 02:22:35 PM »
yes it will just burn the first one faser and then when it burned the other will not get current dont do that ive done that before

Offline ApheX

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Re: Need your help People! (led sound mod)
« Reply #6 on: July 15, 2008, 02:27:54 PM »
ok, i'm gonna try three 10ohms and see if that will work. now i've got to wait for the new leds to turn up. thanks for the help, i'll keep you posted.  :tup:

Offline ApheX

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Re: Need your help People! (led sound mod)
« Reply #7 on: July 18, 2008, 07:56:05 AM »
Hey people! used the 3, 10ohm resistors and it worked. if i was to add another 2 leds to the soundboard would that mean i will need more resistors or would i have to remove one?

Offline DUKE

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Re: Need your help People! (led sound mod)
« Reply #8 on: July 18, 2008, 08:21:16 AM »
just leave the ones you have on there and just add more LED's

Offline ApheX

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Re: Need your help People! (led sound mod)
« Reply #9 on: July 18, 2008, 03:19:42 PM »
cheers mate!  :tup:

 

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