Question about Logitech Z-680 Computer Speakers

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Channel not working

The Left Rear channel is out. I've tried the speaker on a different channel - it works fine. I isolated windows and my sound card by plugging in my MP3 player; nothing comes out of that channel.

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Re: channel not working

If the Logitech Pulse 475 is the same as the Labtech Pulse 475 then the left channel amplifier probably blew. The Labtec uses a 5 pin TDA2030A, which costs around $3. You will need to know how to solder to repair this. The back of the case comes off by removing the 8 screws around the back of the case and lifting it out by the power cord. Then, simply desolder the left channel amplifier marked IC201 (it's on the leftmost side of the board, next to the volume potentiometer) and solder the new amplifier in it's place.

Posted on Oct 30, 2006

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Re: channel not working

My guess is that there is an output failure on that particular speak channel. Take the unit in for service.

Posted on Jun 09, 2007

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Re: channel not working

This is a product defect. Logitech knows about it and wounldn't replace my speakers. It's in the remote volume control. There defective part is the volume control variable resistor and they know. Very expensive speakers that I shouldn't be throwing out becuase of a defective part. NEVER BUYING A LOGITECH PRODUCT AGAIN!!!!

Posted on Dec 09, 2006

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Re: channel not working

Check input cable, if ok , it's possible that a channel died on the audio output IC .

Posted on Jun 20, 2006

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Dell 5650 speaker issues

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the speakers plug/outlet is usually at the back of the computer you will have to open up the computer to check the lead attached to the rear of the input plug make sure the connection is good
or you might have to clean the dust from your computer dust causes static which causes your computer to overheat and all sorts of problems
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Left speaker problem with X-240 Logitech Speaker / Subwoofer Sys.

pul the board out of the subwoofer box and check that the connector is soldered to the board properly if not the sound will sound scratchy.
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Strange problems with Z-2300's

I'm having this same problem and have sort of solved it with a really wierd technique I found at Logitech. Evidently this problem is related to the control pod rather then the RCA jack. Try this:

Unplug the control pod from the subwoofer Turn off the main switch Turn the volume knob one full turn, tap the knob Repeat again (2 times) Replug the control pod Turn on the main switch and the control pod See what happens

I found that this got the speaker working finicky after it was almost totally useless. It seems to be cutting out randomly, but fidgeting with the control pod or it's connector jack fixes it. No clue what the deal is here, but your problem is identical to mine so take some time to screw around with these components with music running so you can hear if it suddenly works.

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Logitech X-530 Speakers System

There are several reasons why there is no sound coming from the rear speakers.
  • Improper connection of the signal cable is a possible reason why there is no sound coming from the rear speakers.

7949.jpg Green connector is for the front left and right channel. Black connector is for the rear left and right channel. Orange connector is for the LFE (Low Frequency Effects) subwoofer and the center channel.

The connectors for the Logitech products are color coded as explained. The connectors on the sound card may not be color coded or a different color coding maybe used depending on the manufacturer of the sound card. Check the manual for the sound card to make sure the correct connector is connected from the Logitech speaker to the sound card.
  • After verifying that the connections are made correctly, the sound card needs to be checked to make sure it is setup correctly. There are many sound card manufacturers so we cannot possibly cover every make and model. We recommend contacting the manufacturer of the sound card to make sure the sound card is setup correctly for use with analog 5.1 speaker systems.
  • When a software DVD player is being used to watch a DVD, the audio output needs to be set to surround sound mode. Please refer to the user manual for the software DVD player to check the settings.
Many DVDs have more than 1 sound format available. Just as the sound card and the software DVD player, the DVD itself has to be set to the correct sound format.
  • Finally you can test to see if the speakers are working correctly by plugging the front channel cable coming from the sound card to the rear channel connector on the subwoofer. If sound comes out of the rear speakers, then there is no problem with the speakers. The problem could be with the software DVD player, or the audio setting on the DVD.
THIS article can be used to test if your speakers are indeed working.

Hope that helps!

If your issue is not resolved, please do not assign a rating just yet. Please post back as to what steps you took, results, etc, and I will try to assist you further as best I can. I am here at your service.

P.S. -You can rate this solution with one of four votes (remember that at times a bit of to and fro dialogue may be necessary to resolve an issue).

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May 04, 2008 | Logitech X-530 Computer Speakers

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Trouble with Speaker 5.1 +Vista + Asus P5k Motherboard. No Rear Speaker sound

Hi Perseo,

If you run through a speaker test in windows, and hear playback from all 5 speakers and the subwoofer, then your system is correctly connected, and working properly.

Vista uses a layered sound system that renders sound a bit differently than what you're used to on your previous system. As a result, it will most often refuse to project stereo sources in 5-channel surround, on it's own. it will just play them as stereo, and the bass will fill in whenever it can.

One possible way you could use to get around this, is to force the system to use all 5 speakers, through the driver. If you're using a realtek onboard card anything like mine (I have a p5k-VM board myself), this can be done by opening up the HD Audio Manager, and selecting the "Speaker Fill" option, under the Speaker Configuration" tab.

another option would be to load your media player you use to play music or movies, and see if there's an option to change speaker settings within the programs.

hope this helps!

Dec 30, 2007 | Logitech X-530 Computer Speakers

2 Answers

Front right and left speakers problems

This is going to have to be a solution in the don't rate until we have some kind of end-result.

Connect the speakers to a different device such as an MP3 player or a Nintendo DS. See if the speakers still cease to work. If they work just fine with a different device, then consider that it may not be the speakers...but a problem with the sound system in your PC.

Perhaps the sound configuration in Windows is disrupted. Perhaps the driver settings for your soundcard in your PC are corrupted. (A complete reinstallation of Windows with a fresh installation of the sound drivers would probably prove this theory right or wrong.)

Perhaps there is a problem with the FRONT CHANNEL hole on the sound system on the rear of your PC. You could check that by plugging the REAR channel of the speakers into the FRONT channel on the PC.

And lastly...there could be a break or a short in the cable of the speakers. You could always test another set of speakers with each sound channel and see if that might be the possible issue.

If the sound card in the PC turns out to be the problem, then install a different sound card. If the soundcard in your PC is currently the onboard one, then disable it in the BIOS before installing the new card.

Let us hear the results before we do any rating. Unless of course you're able to fix it with the data given. :)


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My left speaker didn't work, I described how I fixed it here:

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3 Answers

Both right speakers not working

Try to interchange the connections of left channel and the right channel. If there is sound now in the right channel and no sound in the left channel it means that you have problem in the sound card. Otherwise if the problem remains the same you have a defective speaker on your right speaker system but don't forget to take a second look on your speaker wiring.

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