Kenwood KAC-7201 Car Audio Amplifier
Problem for Kenwood KAC-7201 Car Audio Amplifier

Blowing fuse




By mutiny71 on Feb 05, 2009

" "
My amp turns on, but when I go to connect it, it blows the fuse. How can I determined the problem and can it be something that I can spot and fix on my own.
Comments:

Feb 05, 2009

- my amp is the kennwood KAC-7201 800W, 2 10 inch kickers. but I have to amps, one for the front speakers which is another kennwood amp also KAC-8401; any my speakers r fine not blown. I actually opened the amp up to check if i can spot anything.

Clarification Request

Posted by skinnman33 on Jun 12, 2009

Hello, I repair amps for a living and get a lot of business thru fixya.com. If your fuses are blowing when you turn on your amp try unhooking the spaekers, I guarantee the fuses will still blow. Thats why there is a protect mode to sense these problems. If everything is hooked up properly than it's internal and is going to need repaired. Sounds like the power supply has shorted out somewhere. Probably some power supply mosfets. If it makes you feel better hook the subs up to the other amp to see if they work on that amp. Better yet get a volt meter and check the ohms of your speakers just to make sure. But I guarantee you your speakers are not the problem. If interested in getting it fixed I am the cheapest repair shop anywhere. I have a website but its under construction from my old one. I'm up dating everything. It's www.markscaraudio.com We are in the process of moving to a bigger facility with more bays to install more audio systems. I also own a business installing car audio/video systems. Let me know if ytou want it repaired. I can give you references from people wwho sent me amps from reading my posts on fixya.com. Good luck and please vote so I can get out of this apprintice status. I have 15 years of experience doing this .

Same Problem

Mar 24, 2009

-   CLose to the same problem except that I haven't connected the speakers to the amp yet, but everytime I change the two 30 amp fuses on the side and turn on the power the light on the amp comes on for about a second and then blows the fuses. Any ideas what could be causing this? The amp has worked fine for the last year and just started doing this about 3 weeks ago. -   Guest

Solution #1

posted on Feb 05, 2009
Not Rated)

MsMithra

Rank: Wiz 
Rating: 84%, 30 votes
Most of the time, when you connect it and it blows a fuse, one of the speakers are blown or you have too high of a power demand than the amp can put out.

Can you put more detail in to your question so I can answer it more appropriately? What kind of speaker, what kind of sub, the wattages, etc.

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