5.1 audio parts/diy 2050a circuit/psu?

Discussion in 'The Projects Forum' started by Sharpen047, Feb 27, 2014.

  1. Sharpen047

    Thread Starter Member

    Apr 19, 2012
    48
    0
    Hey guys i have a set of 5.1 speakers for my computer (creative inspire 5200s) that have a problem with the sub.
    I was wondering if anyone had any experience with repairing them.
    The sub "pops" when turned up, i figured it was the speaker, so i hooked up a large sub and it gets the same pop. The tested sub is known to be good because i use it all the time in my car(ohms matched original sub).
    I have checked for blown caps but dont see anything the looks funny or blown. The amps are a tda8510j and atda7372a.

    My other option is to make my own circuit, i have all of the things (minus the power supply) listed in the instructable here:
    http://www.instructables.com/id/32W-Stereo-Audio-Amplifier/
    I dont have a preamp because there are headphone jacks on the computer that i can get an eq for.
    So i can make this circuit but dont understand the power supply.
    I have a decent understanding of how power supplies work, i have regulators and DC-DC boost converters laying around. If i can make one i think i can manage the rest. any help would be great thanks!
    EDIT:
    Let me elaborate on the power supply..
    my understanding of that guide says he used a 22v psu. then converted that to 12v with a 7812 regulator. Then connected the power to 22v then other positive to 12v, then third to ground? giving a +12 and -12?
     
    Last edited: Feb 27, 2014
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