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    Fixing blown amp?

    I had my Rockford bridged at 2 ohms for a few years now it finally blew. Is there anything that I could check for and fix in this situation, so I can use it for my speakers now?



    90 454ss - DEH-P7300, Rockford 250.2 amp (waiting for my Kicker KX600.1), 2 - 10" Pheonix gold subs, and Boston 746's up front.




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    Re: Fixing blown amp?

    ok, i took the amp apart. On each side of the amp there is a row of black boxes, one on each side is burnt. What are these, and an I replace them?
    I will try to get a pic up later for u guys



    90 454ss - DEH-P7300, Rockford 250.2 amp (waiting for my Kicker KX600.1), 2 - 10" Pheonix gold subs, and Boston 746's up front.

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    Re: Fixing blown amp?

    Does each have 3 prongs coming out? they sound like the voltage regulators...easy to replace IF you get the exact ones...if not your amp wont work the same or wont work at all. Also make sure that its only those that are blown...me and friend recently tore apart a home amp and there were burnt resistors, regulators and caps all the bloody place, it was a mess.




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    Re: Fixing blown amp?

    transistors, get the model #, goto www.mcmelectronics.com and buy new ones. General rule of thumb though, when you replace 1, you replace them all. Can get rather pricy.




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    Re: Fixing blown amp?




    instructions on how make a good meal 1st start with a 92 buick lesabre,
    throw on some 20s
    give it some sweatness panasonic cq-df 903
    add some kicker r19 tweets and boston acustic 4x6 plates for spice
    kick it up a notch with 2 kicker compvr 8s and a kicker 600.4
    "if you are a connoisseur" get 2 soundsplinter 15s
    oh yeah cant forget the beef 2 jl 500/1 amps
    thats what i call a meal!!!

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    Re: Fixing blown amp?

    If you want it professionally repaired, check out www.kbaudio.com

    EDIT: chosen1 got it right before i did.




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    Re: Fixing blown amp?

    yeah, they do have the 3 prongs off each one. The 2 on the end are burnt right through, and it looks the one has been soldered allready(was sent in to get fixed on warrenty before). I will probably ry and replace the 2 and see if it works.



    90 454ss - DEH-P7300, Rockford 250.2 amp (waiting for my Kicker KX600.1), 2 - 10" Pheonix gold subs, and Boston 746's up front.

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    Re: Fixing blown amp?




    instructions on how make a good meal 1st start with a 92 buick lesabre,
    throw on some 20s
    give it some sweatness panasonic cq-df 903
    add some kicker r19 tweets and boston acustic 4x6 plates for spice
    kick it up a notch with 2 kicker compvr 8s and a kicker 600.4
    "if you are a connoisseur" get 2 soundsplinter 15s
    oh yeah cant forget the beef 2 jl 500/1 amps
    thats what i call a meal!!!

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    Re: Fixing blown amp?

    Try to over-rate the parts by 20% ...good rule of thumb to go by when repairing electronics. Say its rated to handle at max 5amps, get one thats capable of handling 8amps...avoids blowing the part again.




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    Re: Fixing blown amp?



    sorry fpr the pic - camera phone
    but you can see the 2 burned up for sure. Will all of those thingys be the exact same model? So if I just tak the # off of another one it will work?
    the # off the next one to it is: irf540



    90 454ss - DEH-P7300, Rockford 250.2 amp (waiting for my Kicker KX600.1), 2 - 10" Pheonix gold subs, and Boston 746's up front.

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    Icon14 Re: Fixing blown amp?

    Quote Originally Posted by chosen1





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    Re: Fixing blown amp?

    The wont necesarily be the same...matter fact they are most likely different. Try to get a number off the parts or send the amp away cause there could be damage to other components that might not necesarily look burnt.

    Looks like the bottom corners of the board is burnt black =P lol...musta been over heating nicely




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    Re: Fixing blown amp?

    yeah, it stunk pretty bad.

    The thing is I dont really want to send it away and pay to fix it again, I will probably just replace those and see if it will turn on, if not, toss it in the corner for now.



    90 454ss - DEH-P7300, Rockford 250.2 amp (waiting for my Kicker KX600.1), 2 - 10" Pheonix gold subs, and Boston 746's up front.

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    Re: Fixing blown amp?

    ANother way is to get the schematic drawing for the amp, also with it get the parts list...every manufacturuer will have those. They should e-mail them to you if you bug them enough =P lol worth a shot.




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    Re: Fixing blown amp?

    Quote Originally Posted by chosen1
    So I guess people have had good expierience with them then? I sent them my amp today and feel pretty good about it now. How long does it typically take them to fix it?




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