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I have a QFX PBX-BF15 Speaker and it was working but now its not doing anything. Do these speaker has a fuse that needs to be changed, or what?

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mosesm65576

Leonard Manamela

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SOURCE: Qfx pbx 31150 portable bluetooth speaker why can't I pick up fm stations there's no antenna is their a trick??

Your speaker and the radio must both have bluetooth receiver or signal.

Posted on Jul 14, 2017

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What is the voltage and wattage of the Cerwin Vega E-715 speaker fuse?


Speaker fuses are rated in Amps. If you cant find the specs on your speaker via google, (I couldn't find anything on the fuse.) start with a 2 Amp 'slow-blow' fuse. That should work at low to medium volumes. If you find it blows at low volumes, move up to a 4 or 5 Amp fuse. E-715 is a big speaker, (handles 400W!) so starting at 2 amps should be pretty safe.

Feb 11, 2016 | Cerwin Vega Audio Players & Recorders

1 Answer

E315 cerwin vegas speakers and one keeps blowing a fuse when I turn it up to the normal volume I play them.Can I use a bigger fuse or is it the speaker?About a yr old rarely used until the last few mo


Try playing the speakers at a friends house or something to see if you blow their fuse. If you don't then you know for sure that you need a bigger fuse, but if you do then it's the speaker.

Jun 03, 2013 | Audio Players & Recorders

1 Answer

2004 Chevy Cavalier I have a regular stock radio that the display works, you can change the channel, work the CD player but there is no sound output.


To diagnose this you need to remove the cd player. Then check that the wiring looks good. Then check your speakers themselves. If this fails to find anything, you need to check the wiring to the speakers. Remove the harness from the back of the cd player. Now use a multimeter set to continuity test to probe the speaker wire at the harness and at the other end where the speaker is (with speaker unhooked). If there is continuity from pos. to pos. and neg. to neg. the wiring to the speakers is good. But if probing for instance the positive of the front left speaker at the harness and speaker area you notice both the wires down at the speaker have continuity, you have short circuited speaker wires. This would cause at least the speaker hooked to those wires to not work. It may even cause none to work. Check all the speaker wires for proper continuity. If you still don't find anything I would guess that you need a new cd player. I know that cavaliers had some sort of antitheft in the cd player but I'd assume if it was the problem the cd player would just not function at all.

Sep 19, 2011 | Car Audio & Video

1 Answer

My subwoofer atarted making deep humming sound, then stopped working. I changed the fuse and then when i turned it on it blew the fuse. What can i do?


The voice coil of your woofer is off centered and shorting on the armture causing the speaker to draw too much current. The fuse blew thereby protecting the output stages of your amp. Replace the speaker.

Mar 17, 2010 | Polk Audio PSW150 Speaker

1 Answer

I have a jensen cd6112 radio vol control is not working also will not change bass/tre/ or speakers.Tried reset button but no change .Vol knob won't do anything.


I was installing a speaker and while drilling a spark flew. Didn't think anything of it and finished instalation. When finished the audio didn't work on any of my speakers. I have a jensen cd6112 and the unit seemed to be fine. Tuned in, the lights came on and everything. I hooked a radio straight to the speakers to see if they were blown and they worked fine. Is there a fuse in line with the speaker wires? I would hat to buy another jensen unit and the same problem exist. Any help? Is the jensen unit bad?

Jan 05, 2010 | Jensen Car Audio & Video

1 Answer

The speakers stopped working and Ithink it might be afuse If it is a fuse how do I change it?


Does the receiver say anything on the front like "protect" ? also; check the speaker A/B select switch. There are no speaker fuses in the receiver. Hope this helps

Jun 04, 2009 | Sony STR-DE595 5-Channel Amplifier

1 Answer

While playing it (the speaker just quit on me


the same problem in the B300 is fix by changing ic 7815 and ic 7915. Dan

Dec 13, 2008 | Behringer B1520 Pro Eurolive 15" 2-Way...

1 Answer

Music through phone speaker


If you have a Panasonic KX-TAW PBX, check here for your model: http://www.panasonichelp.com/BGM.htm This appears to cover most of the newer model Panasonic PBX Systems.

Oct 18, 2007 | Panasonic KX-T7630 Corded Phone

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