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I recently purchased logitech x240 it has 3 speakers a big subwoofer acable for that with a green plug i plugged into the green colored plug in ion back of computer i get no sound i checked control panel sound should be working i tried different plug ins on back of computer still no sound can you help?

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  • smk24 Jan 01, 2009

    there were speakers used on this pc and they worked fine

    ifollowed your instructions green to green on back still no sound front icon is visible in lower right corner

  • smk24 Jan 01, 2009

    tried connecting sony am/fm radio to earphone input of one satelite speaker no sound at at all

  • smk24 Jan 01, 2009

    everything checks out plug in to green icon in lower right

    volume levels ok still no sound



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Ok so basically you have the subwoofer box which contains the amplifier for the speaker system, and two "satellite" speakers. The two satellite speakers should connect to sockets on the subwoofer box and then as you say the lead with the green plugs goes from the subwoofer to the greean socket on the PC soundcard. As long as the subwoofer is powered up your speaker system should work.

That's ok as far as the actual speaker hardware goes. Now lets look a the computer itself. Did you have speakers on the machine before, and did they work ok? If yes, and you are totally sure the speakers are wired up correctly and powered on, then we have to assume your new Logitech speakers are broken and it;s time to return them to the shop.

If you didnt have sound before .... is the computer's soundcard installed and working? Is there a small speaker icon down by the clock on the taskbar? If not then it points to the drivers not being installed. If this is the case we will need to find out what soundcard you have installed and find some drivers for it.

If the speaker icon does appear, has it got a red X on it?...if so you speakers are muted in the sound mixer. If you are on XP right click the icon and select Volume Control. The only thing that should be muted in the mixer that appears should be the microphone. If the master volume has a check in the Mute box, then click in the box to uncheck it. The speakers should now work . For Vista it's slightly different. Right click the icon again. Choose Playback. Look to see what the default palyback device is (green tick), Right click this and select the "Levels" tab. Here again you will be able to see if anything is muted.

Also check that none of the volume sliders are on minimum and that the volume control is set to a proper level in whatever media player you are using.

Well these are all the basic checks and I hope you have found this helpful. If it does seem to be a driver issue then I suggest you open another thread along those lines and we can try and help you track down some drivers.

Posted on Jan 01, 2009

  • Derek Fuller
    Derek Fuller Jan 01, 2009

    You need to take the earphone OUTPUT from the radio to the AUDIO INPUT on the subwoofer to check the Logitech speakers. What you did was plug the radio into the earphone OUTPUT of one of the satellite speakers which would not work at all.

    Please try again by plugging the radio OUTPUT into the subwoofer INPUT. If you still get no sound we can assume the Logitech speakers are dead.

    Oh ... i assume you checked the volume control on the subwoofer was turned up?


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Hi and welcome to FixYa,

Initially, a couple of ideas to consider, explore and/or check:

  • try connecting the green plug of the Logitech X240 to another audio source such as the headphone jack of an MP3 player, DVD. This is to confirm that the new X240 works. Alternately, you can even try touching the tip of the plug with your finger, there should be a humming sound;
  • are there any other indicators such as a panel light to show that indeed the X240 is receiving power and is activated;
  • try using a pair of headphones on the computer. This is to determine that the PC's hardware and driver are operational;
  • if your PC is a desktop, try hooking the green plug to the green jack of the PC in front (if available).
Good luck and Thank you for using FixYa.

Posted on Jan 01, 2009

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  • Louie  Role
    Louie Role Jan 01, 2009

    Acknowledgment should be given to IrishDruid for his solution copied by Dipu007 from here on May 24, 2008.

  • Louie  Role
    Louie Role Jan 01, 2009

    Appreciate the postback and update.

    Further ideas:

    • there were speakers used on this pc and they worked fine - indicates that the PC's sound hardware and driver are operational;

    • green to green on back still no sound - chances are the X240 is defective. Could you follow the green cable to where it goes to the X240. It should be to the INPUT;

    • front icon is visible in lower right corner - confirms that the PC's sound hardware and driver are operational;

    • have you tried hooking the X240 to another audio source as initially proposed?

  • Louie  Role
    Louie Role Jan 01, 2009

    The "earphone input of one satelite speaker" is meant to be connected to just that an earphone/headset.

    I am suspecting that for some reason the wiring/connections are off. p[ls double check your connection. The input of the X240 is the same as the one used by the iPod cradle.

  • Louie  Role
    Louie Role Jan 01, 2009

    If as you said, everything checks out, the connections are correct, the PC has sound using another speaker, and the has no sound even when X240 is connected to a Sony AM/FM radio's earphone jack, then being new, claim warranty/replacement. Sorry to be bringing you the bad news.

    Any indications at all that it is working or at least receiving power? Might just be a fuse.


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  1. Verify that all cables are plugged in correctly. Make sure the rear and/or center/sub audio cable is plugged in to the correct port. On most surround sound cards, the rear audio port is black, the front audio port is green, and the center/sub audio port is orange. If you do not have a surround sound card, make sure you obtain the proper adapter (discussed in the next paragraph) or use surround sound emulation if your speaker system offers it. If you are not sure if you have a surround sound card, please check with the manufacturer of your sound card for details.
  2. Make sure your sound card supports the same amount of channels as your speaker system contains. For 4.1 systems, it should have a front and rear speaker jack on the card. For 5.1 systems, the card should have a front, rear, and center/sub, output. The card should be properly installed and configured. Please contact your sound card manufacturer for details. If you do not have a surround sound capable sound card, you can use the M3D button on the controller unit (if you own a z-560 or z-540) or use the source selector switch (if you own a z-5300 or x-620). If you do not have any of the models above, you can use an adapter to split the signal for the front and rear speakers. This type of adapter is a 3.5mm male to 2-3.5mm female jacks. You can purchase this adapter at your local electronic store. Please refer to your manual if you do not know if your speaker system can emulate surround sound.
  3. Try connecting the speakers to a portable sound device such as a walkman or portable CD player. Plug the speakers into the headphone jack, but make sure the volume is lowered so the speakers are not over powered. You can do this for both the front, rear, center/sub speakers to verify that they work. If the speaker system works on the walkman, then you are experiencing a configuration issue with your sound card. Please contact your sound card manufacturer.
  4. Check the system Volume Control located in the System tray. Make sure that the volumes are at a reasonable level and are not checked for Muting.

Posted on Jan 01, 2009


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