JBL PB12 Subwoofer "common problems" Questions

...problems Hi, I bought my Logitech speakers a year or so ago, and have had a problem with them ever since purchasing (but never really got round to sorting it!). It plays initially really well once ...

...the unit apart and checked the filter caps? they are 2 big black 25v 6800 uf capacitors and they commonly go bad on these studio monitors. look and see if the tops of the caps are bulging up, if

...with all inputs removed? Then it may be a power supply problem, bad caps in the power supply.... common

...manuals.harman.com/JBL/HOM/Service%20Manual/PB12%20sm.pdf More likely to have failed ClassD module (common problem and poor design) This is what I did to my: ...

...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

...drivers are all working properly might have blow the mid or a wire came undone in side the box Common problem. I made extensive research on the problem of the mid drivers for the 782 mission ...

...or desoldered pins. Could also be something else, you should know i'm only assuming on the possibilities and i'm listing the most common problems i've encountered so far. Regards 3rq8

Can it be fixed, is it worth being fixed, or should I trash it? need to replace the amp assembly...common problem on this model

...try to turn it up. So i figured it was an internal problem. hi, its definetly an internal problem, commonly in the output section, usually its a capacitor or an transistor which is leaky or short. ...

fuse problem Why it always blew, then you have a short circuit. It is not your fuse is the real problem because it is a guard to your unit. Once there was a short circuit it will blew to avoid further