*Might* be useful (probably not tho):

http://reconekits.com/JBL%20EON%2015%20G2%20and%20JBL%20EON%20Power%2015%20=
and%20JBL%20EON%2010%20G2%20Recone%20Instruction%20Kit.pdf



- cp


On Thu, Jun 28, 2012 at 9:20 AM, Dave Tweed <pic@dtweed.com> wrote:

> RussellMc wrote:
> > I'm repairing a JBL EON Power 15 Powered speaker.
> > Unpaid job, of course.
> > It blew the fuse and I gave the user two more fuses  which reportedly
> > also blew in short order.
> >
> > On examining the speaker I found the power transformer primary was
> > open circuit. (Toroidal about 150 VA)
>
> Er, how is it blowing fuses with an open primary? Further investigation
> is indicated.
>
> > I've obtained a replacement power transformer, but before fitting I
> > wanted to look over the PCB to check for obvious damage.
> > PCB and heatsink block lifts clear after  removal of two screwed down
> > spring clamps BUT to then  remove the PCB seems to require the removal
> > of the driver from the "horn" speaker. The horn body is integral with
> > the solidly cast speaker front face and there are no obvious screws.
> > It is not clear whether removal requires twisting pulling or general
> > beating to death. Modest amounts of each produce no results.
>
> Is the PCB physically blocked by the horn, or is it simply being restrain=
ed
> by the wires going to the horn? A picture might be helpful.
>
> In the latter case, if there's no connector, it may be necessary to
> desolder
> the wires. In my experience, manufacturers of powered speakers tend to
> avoid
> internal connectors so that vibrations don't introuduce reliability issue=
s.
>
> -- Dave Tweed
> --
> http://www.piclist.com PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
>
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