We were told to check the fuses, and they looked blown, so we bought new fuses and as soon as we turned it on, the fuses blew. What is causing these new fuses to blow? Are the fuses the problem or is some other problem causing the fuses to blow? What can we do to fix this problem? Thanks.
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Re: Our sub woofer stopped working
Fuses are designed to be protection devices, that is, to destroy themselves in order to protect an electronic circuit. Now, when brand new replacement fuses blow, it could mean two things: 1.- The replacement fuses are below the specified rating (you can find the rating by reading around the end metal caps of the original fuse), or 2.- The internal circuitry of the unit is damaged and is causing the fuses to blow immediately.
There is not much you can do yourself, unless you are technically inclined and know how to test the unit for internal damage. If you are not technically inclined, your best bet is to have the unit inspected to asses the damages and the cost of repair if you elect to do so. Hope this helps. Let me know if we can be of further assistance.
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within the sub amplifier is an electronic amplifier, that is shorted and blown a fuse. This is all internal. If you can dismantle this module, I suggest do so and any electrical/electronic individual will identify the part needed. you could also check on a replacement module-complete.
Some basic trouble shooting is required here. First you need to see if it is a problem from your source or the sub. Try a different source to the sub-woofer and see if it changes the response. If still nothing on the sub, then most likely there is an issue with the amp or driver. Check to see if there is a fuse on the sub, if so, it could be blown. There could also be an issue with the auto switching circuit on the subs amp, in that case, it would need to be repaired in the shop. But before that I would check all of the connections to the sub, and also to the driver in the cabinet. If everything looks good, then put some type of source directly to the woofer to see if it works, if you get sound, then looks like the amp has a problem. Again a repair or replace issue.
When you say the 40 Amp fuse blew. Was it your mains battery fuse or was it the fuse on the amplifier? If it was the fuse on the amplifier then you may have hurt the amplifier. The Kenwood KAC-8101D is a 1000 Watt monoblock amplifier. Therefore if you say that 1 of your woofers is not playing, then it is almost certainly blown if you are sure it is connected correctly. Try disconnecting it and only running the woofer that tries to play. If this woofer is still working correctly, you will notice a drastic drop if the sound of your bass. The reason for this is because you have changed the impedance load on your amplifier due to the fact that the other woofer is not working. Have your working woofer checked and replace the faulty woofer then you should be banging again.
if u are a technician then its easy to check, problems are, blown fuse, power amp IC output transistor may be blown, check for burnt componenets. changing and blowing a fuse means ur output IC or transistors are shorted.