Question about JBL PRX525 Speaker System
Posted by Anonymous on
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Posted on Jan 02, 2017
Check the incorporated capacitors (if any), also inspect the braid speaker wire on the bass speakers (i understand that these are cutting out).
The braid wires are located between the speaker connection terminal and the speaker cone - if these are damaged or broken, this can cause the speaker to cut out intermittently. To see if this is the case, try to push the speaker membrane gently inward when the speaker cuts out - if it momentarily regains function, then the braid is almost certainly damaged.
Braid wires can be resoldered, but it's not a very easy task because of the structure of the braid, which makes it difficult to clean and solder.
You should have it repaired by someone with good soldering skills or at a speaker repair shop, otherwise the alternative is to replace the speaker.
Posted on Sep 29, 2009
SOURCE: my JBl PRX 515 has
Your speaker is an active one. This means that it has indepented amplifier for low and high frequencies. So maybe the woofer (low speaker) is still active but its amplifier is defective. In order to make things more clear take a look at this block diagram to understand the signal flow:
I suggest you to unscrew the screws at the back panel and eject the whole electronics from the inside:
Take care the cables that connect the electronics with the speakers. If it's easy mark what goes where and unplug these cables. Now with the electronics on the table try to locate fuse(s) that may have been blown; since you don't smell burned components, fuses is the most common problem. Replace any blown fuse with the same one and put things back in the proper order. In case that you don't locate any fuses the problem is at components and I can't be sure if you can manage replacing components.
In case of a problem or clarification, don't hesitate to post me a reply before rejecting my answer.
If you are satisfied, accept my solution.
Thanks and regards
direct FixYa link: http://www.fixya.com/users/technical114
Posted on Sep 13, 2010
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