Question about Logitech Z-640 Computer Speakers

1 Answer

There is no power

There in no power on the speaker when connectet to the outlet

Posted by on

  • ttaupea Nov 20, 2008

    there is no power

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Check te switch wether its work...... or check your connection 15pin all the pins are in place if that okay its need to go into the main board

thanks

toki

Posted on Mar 26, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have the JBL speakers which are really decent but i want them to be as loud as possible! if i plugged in my logitech speakers into one of the inputs that i would normally put one of my little speakers in...


It should be OK BUT if the JBL and the Logitech are plugged into different mains outlets you could get a hum from one or both sets of speakers. This hum is caused by an earth loop when the speakers are connect to different mains outlets.
The fix.
Connect a power board to a mains outlet and then plug the mains connections from both set of speakers and computer to this power board.

Oct 25, 2012 | JBL Encounter 2.1 Computer Speakers

1 Answer

My speaker is making buzzzing sound?


You may have an earth loop problem.
This is caused by connecting your computer to a mains outlet and the powered speakers to a different mains outlet.
If this is the case then connect the computer and the speakers to a power board and then plug the power board to a mains outlet.

Jan 20, 2012 | Computer Speakers

2 Answers

Midiland 8200 (ADS 4000 controller) 5.1 hum problem


You may have an earth loop problem. This is caused by connect various equipment to different mains power outlets.
Connect all the PCs, audio and speakers to a single mains power outlet, use a power board so they are connected to the one mains power outlet.
I suggest you use a power board that has a built-in surge protection.

Nov 14, 2011 | MidiLand S4 8200 Computer Speakers

1 Answer

Hi! I have a problem with desktop speakers, buzzing sound without reproduction from sound card...other speakers work properly, so obviosly it is a problem with the speakers..the power suply is ok, diode is...


Are this powered speakers connect to the same mains power socket as the computer.
If not you may be getting an earth loop which causes a humming sound.
Connect these speakers to the same power outlet, if you have not sufficient outlets use a power board.

Apr 26, 2011 | Teac PowerMax 160 Desktop Speakers,...

2 Answers

Installation of speakers


The speakers require the AC adapter to be connected for the speakers to function. The AC adapter powers the amplifier of the speakers
http://support.dell.com/support/edocs/acc/ada215/ada215.pdf

Apr 18, 2010 | Dell A215 Computer Speakers

1 Answer

Trying to find out why my desk speakers buzz when my monitor is on?


If the computer and the powered speakers are connected to different power outlets then you could have an earth loop. This causes a hum in the speakers, this also apply to hi-fi sound systems.
To fix this problem, connect all the computer components to a power board and plug it into a power outlet.

Nov 26, 2009 | Logitech X-530 Computer Speakers

1 Answer

Not working


Sounds like an issue with the power cable or adaptor.Take the speakers and plug them into a power socket/outlet that definitely works. If it turns on you know the power socket/outlet you WERE using is faulty. If not, then it is possible the adaptor itself is faulty and needs replacing.

Aug 23, 2009 | HP JBL Platinum Computer Speakers

1 Answer

2.0 Ch usb powered Speaker system buzzing


hi, check all the connections,cables and replace as needed. sounds like a ground loop.also your power outlet may not be grounded or the power adapter may have issue, this could case the condition you describe.try other power outlet. you can get filters ,conditioners at like radio shack or places like that.. hope this is useful. good luck!

Jan 30, 2009 | Computer Speakers

2 Answers

Speakers work when plugged into electrical outlet however will not work on battery power


hey u r using speakers..so i think power is not suff for them to run..so use dc flug boards..i mean direct curr...
y do u try for a batery??itz waste of money

Nov 29, 2007 | Logitech Inc MM50 Portable Speakers iPod...

Not finding what you are looking for?
Logitech Z-640 Computer Speakers Logo

Related Topics:

134 people viewed this question

Ask a Question

Usually answered in minutes!

Top Logitech Computer Speakers Experts

Lawrence Oravetz

Level 3 Expert

7565 Answers

Andrew Taylor
Andrew Taylor

Level 3 Expert

10589 Answers

L Pfaff
L Pfaff

Level 3 Expert

11573 Answers

Are you a Logitech Computer Speaker Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...