Author Topic: i put leds on my left and right buttons now i got no sound.  (Read 1706 times)

Offline loboplayero

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i put leds on my left and right buttons now i got no sound.
« on: January 19, 2010, 12:21:35 AM »
hello guys im new here and im glad i found this site i need some help on a mod i did to my psp 2000 slim i put lights on left and right buttons,at first it turn off after two bars of battery and once i put the headphone jack it would go back on but if i removed it turned off but no i got a problem i dont have any sound unless i put the headphones can someone please help i would be really APPRECIATED OHH AND I FORGOT it also got hot when i played with the lights on. :beg:

Offline Demonboy

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Re: i put leds on my left and right buttons now i got no sound.
« Reply #1 on: January 19, 2010, 01:04:49 AM »
post a pic of how u have the leds connected and where u have them connected to it would help alot more than that explanation

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Offline K.A.O.

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Re: i put leds on my left and right buttons now i got no sound.
« Reply #2 on: January 21, 2010, 08:01:03 PM »
you prolly blew your sound fuse. i did it with mine. just solder a bridge the fuse. solder the 2 ends together.. in other words, put a littles glob of solder on it. theres a pic of it here

https://www.acidmods.com/forum/index.php/topic,34153.0.html

Offline loboplayero

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Re: i put leds on my left and right buttons now i got no sound.
« Reply #3 on: June 10, 2010, 09:19:35 PM »
guys guys!!!!!!!!!!!! this already happen to me with 3 of my psp all psp 2000 i got them fix once i solder a bridge on the fd fuse and boom sound came back on on all 3 psp 2000 so yes the bridge works.
       why does this happens 3 out 5 psp fuse got blown while putting leds? on psp 2000} why? ima doing something wrong?  :dntknw: :dntknw: :dntknw: :dntknw:

Offline FOOKz™

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Re: i put leds on my left and right buttons now i got no sound.
« Reply #4 on: June 10, 2010, 09:26:05 PM »
Whats the Forward Voltage of the LEDs?

Sometimes if your LEDs require too high of a voltage you speakers wont work.

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Offline loboplayero

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Re: i put leds on my left and right buttons now i got no sound.
« Reply #5 on: June 10, 2010, 09:59:19 PM »
well they range from 2.5 to 3.0 volts? i think? does color matter?

Offline FOOKz™

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Re: i put leds on my left and right buttons now i got no sound.
« Reply #6 on: June 10, 2010, 11:00:32 PM »
Color has an effect on Forward voltage, smaller the wavelength(color) the more voltage it needs to "activate". Sometimes when you have LEDs with too high of a forward voltage you can drop too much voltage across the supply...

If you experiment with a RED and PURPLE led... you will see my point... the Red leds usually have a small 1.2v forward voltage, and purple may have 3v forward voltage where the Purple overpowers the red one since it requires more aka the "easy" path to ground.

The LED may be sucking more power from the speaker that you just cant hear anything.

Things to try:

- Remove the LEDs, see if your sound works without them.
- Double check power connections to EVERYTHING.
- add a resistor to the LED after the first two steps are tried.
- check your fuses

if nothing helps then idk, what other symptoms are there?

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Offline loboplayero

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Re: i put leds on my left and right buttons now i got no sound.
« Reply #7 on: June 10, 2010, 11:12:17 PM »
dude thanx u gave me good info good looking!!!

 

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