Question about JBL PSW-D110 Speaker

1 Answer

No output from d110

I recently purchased a used d110 and am getting no output out of it. Led on front stays red. If i partially remove one of the RCAs i will get a loud hum, but no results otherwise. I have tried all inputs I have available to me with no different results. Any suggestions? The D110 I have has a shorted C6 cap also . I was told that Best buy had repair it before but he did not remember what they did. The C6 cap is NP 4.7uf @100v .Should I use aNP 10uf @100v ?and if it shorts with 100v cap is something else in the circuit that should be changed ? thanks

Posted by on

  • calman46 Oct 18, 2008

    would increasing the uf value help ? the original value may have been 10uf.

  • calman46 Oct 18, 2008

    Ok I put in a 4.7uf NP 100v cap and the sub now works. In another post it is mention that JBL sent a 10uf NP 100v cap to replace C6. My sub works but has a hum so I put a AC meter across the main PS caps and I'm getting 105AC across one cap the other is fine at 0v ac ,there both about 47vDC. So it would seem that filter cap(s) need replacing also ,is my diagnosis correct ? thanks

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 19,396 Answers

You can use a cap of same or bigger voltage,

Posted on Oct 17, 2008

  • 1 more comment 
  • Ginko
    Ginko Oct 17, 2008

    Try a bigger voltage cap, if the cap keep shorting then it is something else on the circuit. Probably something wrong on the power supply area, since you get an overvoltage.

  • Ginko
    Ginko Oct 18, 2008

    You can put a capacitor with bigger Voltage, you cannot use a capacitor with more capacitance (more uf ). If you put a capacitor with more uf, that will have bigger capacitance, the circuit probably wont work, or it will blow something else when the capacitor discharge. If you use more voltage the circuit will work the same, and the capacitor will be more difficult to blow, the risk doing this, is that the same problem that blew the lower V capacitor, wont blow the new one, and blow something else. For this reason is always better sticking to factory specifications.

  • Ginko
    Ginko Oct 18, 2008

    To be more precise I checked the service manual for your specific model.

    C6 in your circuit is a safety component, that means that it needs exact replacement, as when it is blowing it is saving part of the circuit from blowing.

    You must replace C6 with 4.7uf 100V 80/-20% Electrolytic redial NP, same as the original one.

    See the list of safety components at page 2 of service manual here :PSW-D112/DPS-12

    If no sound or humming noise (probably a fault in the final amp region of the board) persist, then follow testing and troubleshooting diagrams to find the rest of the faulty components.



×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Problems with JBL PSW D110


The speaker level input option is designed for receivers that don't have digital output for the sub, used this way when you set to digital the speaker outputs only get the higher range outputs so won't reproduce much bass. To get the sub to work in digital mode you need to use the digital output (single RCA) from the amp to the sub

Mar 06, 2012 | Speakers & Subwoofers

6 Answers

JLB PSW-D110 Subwoofer Issues


Hi,
Hummmm is from Output amplifier and you need to replace it because power supply blow it too.

Sep 09, 2008 | JBL PSW-D110 Speaker

1 Answer

How do i hook up the wires from and to a sa wms 315 subwoofer


what r you hooking it to is #1 rca wires r the way to go when hooking up a subwoofer up .some subwoofers have 2 rcas on them one input and one output the in put is mono if what your going to hook it to has rcas on it then the left one is a mono output but if its an audio system then it mit have a subwoofer output on it

Jun 29, 2010 | Sony SA-VA1 Rear Speaker

2 Answers

My sub has no power, ther could even be other problems i'm not aware of. so i would like to fix power first


Hiya, start by checking the power cable, then check the fuse in the unit on the pcb. If blown, replace and if it blows again then problem could be either Power supply or the amp outputs. If it doesnt blow, stays on but no sound, problem also likely to be output stage. You will need someone with experience to check outputs, etc and a meter though. Hope that helps a bit.
Best of luck

Jul 15, 2009 | JBL PSW-D110 Speaker

1 Answer

How do I connect a mac audio output to a yamaha sound projector?


NO!!! get a 3.5 male TRS to stereo RCAs to either the Aux input on the amp or the audio portion of the front A/V Aux. the audio jacks will be red and white.

Dec 04, 2008 | Yamaha Digital Sound Projector Home...

1 Answer

JBL d110 /w no sound output


There is a standby indication that activates after 10-15 minutes without any input signal. I suspect that might be what the red light is telling you - no signal.

Loud hum from a loosened cable is normal as hum usually means there's an ungrounded connection somewhere acting as an antenna and the amp is doing its job to amplify what it thinks is a signal, in this case 60hz stray ac current is being sensed nearby. It's a good sign that you get hum from the sub because that means the amp is alive.

Avoid manipulating cable connections with the Sub or Receiver turned on as you could introduce a static spike that could harm any connected equipment.

Are you certain a bass signal is making it into the sub? The complexities of modern AV receivers vary in how you configure them to direct LFE to a sub. Bone up on that end of the chain.

Or, just hang a CD player on the Inputs of the sub and play something with a reassonable amount of Low Frequencies.

>>>> Be advised that this way of testing has NO VOLUME CONTROL because amps without volume controls always operate at maximum gain, relying on your external controls to attentuate it (hence, the loud hum from a loose cable); so choose a track that eases into the loud parts with some quiet parts up front and BE READY TO PAUSE THE PROGRAM AT ANY SIGNS OF STRESS. <<<<

A living sub will produce only muffled rumble in the absence of other speakers producing the higher frequencies which carry the intelligence of the signal. If that works, back to the receiver for settings. If not... sigh.

-----

For hum problems, even those you cause yourself:

Disconnect all inputs to see if that helps. If it goes away start with the signal cables and add in things until it comes back.

Sometimes the reversing the orientation of the AC plug can help with hum. Or it could be something like a loose or high resistance connection internal to the sub. Good luck.

Jun 17, 2008 | JBL PSW-D110 Speaker

1 Answer

No output from d110


Hi Chadwik

The fact that you do get hum when you partially remove one of the RCA's would tend to say that the output stages are working ok. Is the hum "solid" and bassy, or distorted?

There are a few issues that these subs have had, mostly to do with capacitors in the power supply failing. If you are up to it, I can talk you through repairs to it.

regards
robotek

Jun 16, 2008 | JBL PSW-D110 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

Not finding what you are looking for?
JBL PSW-D110 Speaker Logo

Related Topics:

140 people viewed this question

Ask a Question

Usually answered in minutes!

Top JBL Speakers & Subwoofers Experts

Michael Edwards
Michael Edwards

Level 1 Expert

53 Answers

 Grubhead
Grubhead

Level 3 Expert

4590 Answers

shaqsatin

Level 1 Expert

17 Answers

Are you a JBL Speaker and Subwoofer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...