Question about JBL PSW1000 Speaker
The fuse continues to blow. Wrong rating? What fuse should be put into this sub?
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Posted on Jan 02, 2017
SOURCE: Blows fuses
I found a post where someone replaced several capacitors with ones he described as titanium and a higher voltage like 100 v rating rather than 50 as oem. He states no more problems. I found this site while searching again. I also found a free download pdf repair manual from JBL - site defined as Harmon, and they show revised parts replacements for these caps - 100 volt. I just bought a used one and not hooked up as yet, but I plan to use slow blow fuses and possibly a little higher rating - not much though, and I believe there is a ceramic type - color solid white - that may withstand the apparant surge. Theres also a recent post somewhere for sale of the amplifer board... 64smi or something like that. Hope this helps. Ken
Posted on Mar 24, 2007
SOURCE: jbl psw1000 no power
Have you checked all fuses. There might be 2 - one for the input and one specifically for the amp section...
Check to see if the speaker is fried. Remove the grill then place your fingers as evenly as you can aa couple of inches away from the cone. Press gently and listen. There should be no scrating sounds at all. If you hear this, first try repositioning your fingers. If it persists your speaker is fried. This is caused by a few reasons. Amp failed and took speaker with it. Or a large signal was inputted which causes the amp to hold its max power for a longer period of time (amplified signal is no longer a sine wave but a sqare wave).
Otherwise, unless you know what you are doing with AC (house power) I don't suggest you go poking around-you need at least a volt meter to start testing
Posted on Dec 22, 2007
SOURCE: fuse blows
Both 3 or 4 amp slow blow fuses are suitable replacements for the 3.125 amp subwoofer fuse.
It could be that the subwoofer is blowing the fuse because the one you installed was not slow blow.
But, more likely is the subwoofer has a short in the power supply which is causing the fuse to blow.
Posted on May 31, 2009
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