The fuse in the amp part of the sub keeps blowing. The light will go blue when you plug it in with a new fuse and in a couple seconds it blows again. No sound can come out while it goes blue or nothing. How can i get it to be powered so the fuse will stop blowing and sound will come out of the sub. I'm using a 1.5 amp fuse.
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Re: Fuse keeps blowing?
The fuse is a protective device. Fuses dont blow unless the amp ( in your case ) is drawing too much current. DO NOT put a bigger fuse in. Obviously, there is a problem with the amplifier inside the sub. If the sub is under warranty, send it in for repair to an authorized warranty depot. If not it's not under warranty, then take it to the authorized warranty depot anyway. Why ? because they will have the schematics ( electrical diagrams ) to troubleshoot the unit quickly and it may be a common problem. If it is a common problem, the factory may have released a modification and possibly it could be covered under warranty under a factory 'goodwill' program. Good luck. Rob
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The transistors at the output stage of the sub amplifier circuit might be shorted so each time you power on, the circuit draws a very high amount of current which causes the fuse to blow. It's definitely a problem with the circuit so using a higher current rated fuse would probably just result in damaging the amp even more. You should ask a qualified electronics technician to take a look at it. I hope you can fix it.
If you have replaced with the correct rating and the fuse blows off then you will need to check for higher current drain in the sub woofer or the network. After replacing the fuse load up the subwoofer slowly, reduce the bass and as you increase check at the point the fuse blows off. Now we need to analyse if the rating of the amplifier you are using is rated for the subwoofer. If your subwoofer has a higher rating you can increase the rating by about 25% and check again. Some amplifiers give a very higher voltage on full bass which could result in such a condition. Moderate this and check again. If the fuse stays Ok you can continue with this new rating.Otherwise the output of the amp at higher volume needs a confirmation. Hope this helps. Good day
Others have had similar problems with the amp on this model. There is probably a circuit design error which causes some components to blow and as far as I've read, fixing it (or replacing the fuse) won't make the problem go away for long. Try contacting PSB or the retailer.
the correct size fuse is based on amps, not volts. The correct fuse rating should also be displayed on the chassis of your sub, if in doubt take the original one to an electrical shop and let them identify it for you.
NO dont try a 3 amp fuse.It is made to BLOW if there is a problem. That sub is not worth fixing, JUNK it. There are a lot of problems with it. Such as heating up and melting the board witch could cause fires. Thats what happened to mine. Like I said JUNK it and buy a different one.