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Yes. I also took it to a friend who has worked fixing tvs, vcrs,etc. for 20 plus years, and he can not find a short in it. He says it keeps blowinf the fuse.
Thanks, GeneYes. I also took it to a friend who has worked fixing tvs, vcrs,etc. for 20 plus years, and he can not find a short in it. He says it keeps blowinf the fuse.
Thanks, Gene
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Most likely the amp in the sub has blown. It will need repair or replacement. I'd take it to an expert in repairing amps, it's not a job for you unless you're experienced in troubleshooting these things.
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.
Fuses only blow like that when a semiconductor device is acting like a piece of wire causing an overload. An ohmmeter on the ohms setting will show any transistor with this condition as a short, just like you had touched the test leads together! Follow where the fuse leads to. And look out for signs of damage too. The most obvious parts to go are the ones that do the work, in the power supply or the main amp device, often an IC.
This can be due to either the integrated power supply system or the amplifier itself. As a tecnician I can imagine the possible faulty components and I guess that the cost isn't too big. But since I don't know your area I suggest to ask from a technician at your area to check the subwoofer.
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Subwoofers draw a tremendous amount of power. With the amount of heat generated by amperage flow and the movement of the voice coil, you may have burned out the coil. Do a resistance check across the coil. Easy check? Temporarily attach another speaker to replace that one. Use LOW VOLUME and slowly work the vol up,and, if the fuse does not blow, it's the other speaker.
Yes. I also took it to a friend who has worked fixing tvs, vcrs,etc. for 20 plus years, and he can not find a short in it. He says it keeps blowinf the fuse.
Thanks, Gene
Hi
did you replace the fuse with the same rating of amps?
in other words, the one you replaced... is it the same amperage as the one you replaced?
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