How to connect logitech Z-640 5.1 system to my LCD tv

SOURCE: I have a logitech Z-640 speaker system connected to a Panasonic Plasma TV and the sub woffer has no volume coming from the large speaker.All the other speakers are OK It seems there is no power going

Hi Ray,
if there is no power going thru than,might probably be your fuse in the subwoofer that's blown.What you have to do is remove the wire mesh from the front using a terminal flat screw driver. You will notice that there are screws around the speakers,remove them inorder to take the speakers out.Once you've done that take out the speakers gently so that you dont disconnect any wires inside.Turn the peakers over and you will see a fuse attached to the speaker.Try replacing the fuse with the asme ratings.
Please refer to the image below on what the back of the peaker looks like.
All the best and Good Luck.

G..

SOURCE: Connect DVD Player to logitech X 540 Surround System

Bad connection on that one speaker, if you have tested the system with other equipment and it works thn you MUST have a bad connection INSIDE you DVD player. If your DVD had a whole channel out on your output amplifier I beleive then 2 speakers would not work so more than likely you have a bad solder joint inside system for DVD output

SOURCE: Can I have my Logitech X540 Speaker system thru my tv

HERE is a link to the Z-540 manual. It should help. Connect the green plug from the audio input cable to the "line out" jack on your TV. Do NOT use the black or orange plugs. WIth a 2 channel card like your TV's you will not get sound from the rear speakers unless you enable matrix mode through the remote.

Hope that helps!

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SOURCE: logitech Z-640 installation disk,

The Logitech website under the support section. All you need to do is look up your model # and then download the software/drivers for the operating system you are using. Hope this helps.

SOURCE: how do i conneect logitech speaker to a vizio flat screen?

Well these speakers, as you said, are designed for PC, not TV. Even if they work with one TV, that does not mean they will work for another TV! I am glad to help for a Premium Question!