Question about Logitech Z-3e Computer Speakers

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Humming noise hi! I have a problem with my logitech z3e. When I switch it on I can hear a loud humming noise and nothing else. I used to move the cable at the back of the unit and it helped for a while but now it makes no difference. Even my computer is switched off I does the same thing. Since I had bought it I moved house and it made no difference so it cannot be because of the mains. One of my friend has a logitech unit, too and he tried it in my house and it was working fine. I think it can be the problem with the wires but I am not sure so at the moment I cannot use my speakers but looking for a solution somewhere. I am waiting for your reply, Regards, Charlie

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  • Logitech Master
  • 76,164 Answers

You have a failed capacitor on the power board

Posted on Mar 28, 2017

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Posted on Jan 02, 2017

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SOURCE: Logitech Z-5450 5.1 surround sound speakers - no sound from rear right only

Check out the troubleshooting tips on the PDF file at  http://logitech-en-amr.custhelp.com/cgi-bin/logitech_en_amr.cfg/php/enduser/fattach_get.php?p_sid=t2HdY9Si&p_li=&p_accessibility=0&p_redirect=&p_file_id=44208&p_tbl=9&p_id=5190&p_created=1155250699&p_olh=0

(sorry for the long link). Flashing red indicates data loss.

Posted on Aug 07, 2008

  • 1 Answer

SOURCE: speakers won't turn on

Have you checked the fuse in your plug. If the fuse has blown it won't work in any wall socket. Change the fuse for a new one anyway, then try again.

Posted on Sep 30, 2008

SOURCE: Logitech x-230 - left speaker not working when used with 360

Get your system to a repair shop! Note that the problem is in the PB9 jack at the back of the subwoofer and don't try to wiggle anything yourself - they're great speakers, don't do anything you'll regret.

Posted on Oct 27, 2008

  • 1 Answer

SOURCE: Logitech Z-5450 5.1 surround sound speakers - no sound from rear right only

Unfortunately I have the same problem. As an electronic engineer I suspect that the power supply part of the unit is damaged. I opened up the module (don' t try it, its a little bit tricky since there is a type of glue around the silver bezel, after you remove the 4 screws from the front holes) and did some quick static measurements with a multimeter, so far no luck. Since I am still in warranty I will try to replace the item. Hint: protect your electronic equipment with ups or surge protection devices.

Posted on Jun 28, 2009

  • 10 Answers

SOURCE: I have Logitech X-230 speakers. The left speaker

CHECK THE POWER SUPPLY TO THE SPEAKERS
REPLACE ITEM IF POWER TRANSMISSION IN NIL

Posted on Jul 18, 2009

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1 Answer

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Possibly a bad cable or bad ground or bad outlet?. Easy solution, try a different outlet and see if the hum still exists. Also, make sure your speaker cables are NOT run parallel along with, or close to any power cables, Speaker wires can and will pick up AC "Humm" noise.

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I own a Bose Acoustimass 7. I noticed humming coming from bass more noticeable than before (although I recently moved it to another smaller room) I also noticed when I hear this humming- the higher I turn...


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Bill W
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1 Answer

One of the speakers when turned on loud, there is humming sound. sound hear like a helicopter engine


Hi there,
we need to do a little bit of fault finding here to narrow down where it's coming from or what is at fault.
First try physically swopping the speakers over and reconnecting (do not just switch the cables at the back of the amp). Is the sound still coming from the same side or has it swopped over? If it's swopped over, it's a speaker issue and needs replacing.
Ok, if the strange sound is still happening from the same side, have a look along the speakers cable path. Is the cable running along side any power cables or extension leads or is it near any wall warts or mains transformers (the type you get with mobile phones, keyboards, answer machines,etc). If so, move the speaker cable a considerable distance away from these. Now, has it stopped or the noise reduced?
If we are still not getting anywhere, see if you can try your speakers on a friend's system and/or try someone else's speakers you know to work on yours.
If his/her speakers are noisy on yours, firstly you have to consider that most sytems at very high volume will produce some noise, but if it's actually quite a loud audible noise that's relatively new to the system, you need to get the amplifer serviced.

Hope this helps

Good luck

Jan 07, 2011 | Audio Players & Recorders

2 Answers

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V1 did not use switching power supply, they use discrete circuit and that is why they are a bit quieter
tweeter-mackie-5t215me55uezwm4wwbbpfxqh-3-0.jpg

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1 Answer

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