Question about JBL PSW-D112 Speaker

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My JBL PSW-D112 Speaker is not working well

It doesn’t work; it makes a loud humming sound when plugged in. I dont know what's wrong with it.

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  • Anonymous Sep 12, 2008

    have same problem. have some tech training. powered up, has a slight buzz that fades away. understand it might have a bad cap or resistor. which ones? location & values? temp has efect around Q12 transistor. not cold solder! was there a R15 resistor? missing. wire still there. looks to be cut or burned out! where can i send just the power amp for service. to large to ship complete. or can some one tell me parts and values need to check.

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SOURCE: JBL PSW D112 Distorted Sound

SYLVAN.

THE FILTERS /FILTRES ON YOUR SPEAKERS ARE TORN OR DAMAGED. IF YOU STILL HAVE WARRENTY ON THEY FROM JBL YOU CAN RETURN THEM FOR NEW ONES, PROVIDING THAT IS COVERED. IF NOT. I PERSONALLY RECOMMEND YOU BUY YOU SOME NEW ONES. REPAIRING WOULD BE OK, BUT IT WILL HAPPEN AGAIN VERY QUICKLY.

Thank you. Let me know what your decissions are

Posted on Nov 24, 2007

  • 2 Answers

SOURCE: JBL PSW-D112 Speaker fuse blow immediately after replaced

The Problem in this unit is the Amplifier module S64AMI,which is surrended in a black heatsink, filled with epoxy, not serviceable, the bad news is that JBL discontinued this module and is really hard to find, sorry....

Posted on Nov 21, 2009

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1 Answer

Hi, Here's the problem with my PSW-D110. When I plug in the power cord I get a loud humming sound and the speaker thumps every couple of seconds. Anyone know what the problem may be. Thanks, Tim


I would say it's a case of bad filter capacitors in the power supply. Without the capacitors, the AC power line doesn't get smoothed out enough when converted to DC by the supply, and you hear the hum that gets through. I have never worked on on one of these so I can't tell you how to open the case to get at the supply. It's not always a simple job. But if you can get at those caps and check them, you'll probably find them at fault. It's not a difficult job to remove and replace bad capacitors if you are comfortable using a soldering iron. Just make sure that replacement parts have at least the same voltage voltage rating and capacitance values as the originals. It never hurts to go higher by a little, but not lower.

Feb 24, 2011 | JBL PSW-D110 Speaker

5 Answers

JBL sub PSW-D110 hums, and the fuse is blown


here is the manual, I am looking for a more detailed version

Mar 25, 2008 | JBL PSW-D110 Speaker

1 Answer

I have moved from place to place...and all the sudden I can't get my jbl psw-d112 woofer to work....i took it apart and think maybe the blue and black wire came off the actually woofer...i need to know...


Are you not sure the wires came off? If they're off, reconnect them and get back to us. Absolute polarity doesn't matter. You can always reverse the phasing with the external Phase control.

When you say you replaced the fuse, was that a wild guess or was the fuse really blown?

Jun 20, 2010 | JBL PSW-D112 Speaker

2 Answers

When my jbl psw-d112 is on it will run just fine for a few min then it will sound like the speaker is blown. the green power light that is next to the vol level knob starts to turn red. What does this...


That model is known to have issues with the amps.Your problem is caused by a couple of components on the board shorting out.If you pull the amp out you will find on the large board behind the speaker terminal a couple of burned components.

The easiest fix is to buy a Bash 300w amp from Parts Express and replace the original amp.The Bash amp fits pretty well except that it is about an inch shorter.You can fill the hole with some mdf and have a sub that actually performs better than the original and with less heat build up as it is digital.Hope this helps,it's not complicated really.

May 01, 2010 | JBL PSW-D112 Speaker

1 Answer

JBL subwoofer PSW-D115


Hi Im a Certified Repair technician, I seen few problems with this unit, there is a amplifier module inside this unit, is really hard to find since JBL discontinued this almost immediately.
Sorry no really worth to bother........

Apr 10, 2009 | JBL PSW-D112 Speaker

1 Answer

Power not working


If it is fused check to see if the fuse is blown... Start with power and work you way down from there.
Power to the sub.
Signal to the sub
Cabling to sub
Check the speaker itself to see if it is good.

john




Aug 16, 2008 | JBL PSW-D112 Speaker

2 Answers

JBL PSW-D112 Speaker fuse blow immediately after replaced


The fuse is designed to protect the circuit and prevent fire. When a fuse blows it is because it is getting to much current through it.
In some cases it could be because you replaced the fuse with one that did not meet the specs of the required fuse, there are different types of fuses and you should always replace with exactly the same type of fuse.

Do not replace with a higher Amp fuse, you could end up frying the amp at least. It's not a safe thing to do since there is an off chance of fire from using the wrong fuse.

If you have the right type of fuse installed and it is still blowing, then refer the unit to a qualified service center for repair, or look for a new replacement Amp.

john


Jun 27, 2008 | JBL PSW-D112 Speaker

1 Answer

JBL PSW-D110 Humming Loud


If I remember these correctly, there is a bad coupling cap in the amp section. You should see it as the top should have ballooned up. Replace the cap and you should be OK.
Dan

Mar 25, 2008 | JBL PSW-D110 Speaker

1 Answer

JBL PSW D112 Distorted Sound


SYLVAN.

THE FILTERS /FILTRES ON YOUR SPEAKERS ARE TORN OR DAMAGED. IF YOU STILL HAVE WARRENTY ON THEY FROM JBL YOU CAN RETURN THEM FOR NEW ONES, PROVIDING THAT IS COVERED. IF NOT. I PERSONALLY RECOMMEND YOU BUY YOU SOME NEW ONES. REPAIRING WOULD BE OK, BUT IT WILL HAPPEN AGAIN VERY QUICKLY.

Thank you. Let me know what your decissions are

Nov 22, 2007 | JBL PSW-D112 Speaker

2 Answers

Jbl subwoofer


There is actually some good news.  I had this problem with my PB10s (1 have 2 PB10s and 2 PB12s) It is one of 2 things, the first is that it could be a capacitor and resister combination on the amplifier board (which was the fix for our PB10 with the same problem), or 2nd, the AMP IC, which is not available for the PB12. hmmm

Sep 10, 2007 | JBL PSW-D112 Speaker

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