Fixing blown amp?

[Kybol 10+ year member]

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?

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[Kybol 10+ year member]

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

 

[Jibbercrap 10+ year member]

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.

 

[DBfan187 5,000+ posts]

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

 

[chosen1 10+ year member]

http://www.kbaudio.com

 

[zachzchw 5,000+ posts]

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

EDIT: chosen1 got it right before i did.

 

[Kybol 10+ year member]

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.

 

[chosen1 10+ year member]

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[Jibbercrap 10+ year member]

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.

 

[Kybol 10+ year member]

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

 

[dkc62 10+ year member]

http://www.kbaudio.com

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[Jibbercrap 10+ year member]

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

 

[Kybol 10+ year member]

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.

 

[Jibbercrap 10+ year member]

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.

 

[jay357 10+ year member]

http://www.kbaudio.com

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?