SOURCE: Sub Woofer does not work
hi there are fast checkings for you: Quick Connect Card http://www.alteclansing.com/downloads/641QCC.pdf manual: http://www.alteclansing.com/downloads/641_MAN.pdf is the system working fine exept the sub? my guess: the headphone jack works fine then the speakears are too if soo then the sub amp is bad or some connection is torn try opening the sub and see if everything is hooked right and if soo then the amp is the problem every electronics shop can fix this good luck
SOURCE: How to disassemble Logitech Z-340 sub-woofer
The speaker bezel can be removed in only two ways:
1) Somehow remove the grille in order to get a the screws which hold the bezel onto the cabinet. I tried to do this and couldn't get it to budge. Once I got the thing open I observed that Logitech used a LOT of glue to hold this thing together.
2) Drill holes THROUGH the grill above each of the 8 screws large enough so you can loosen the screws.
Once you get it open, you'll be shocked to discover what you thought was the subwoofer cone is actually A ROUND PIECE OF CARDBOARD fastened to the foam. The 4" driver is behind this fastened to a board halfway back pointing into the chamber containing the electronics.
You can get to the power transformer, but good luck removing it. The screws are nearly impossible to unfasten; more glue but more importantly incredibly awful access to the nut and screw (yes, a screw, not a bolt).
I wouldn't pay 5 bucks for this system. Luckily, I didn't.
SOURCE: Logitech x-230 speaker system
Ironically enough, I went on here because I have the satellites but no subwoofer! LOL, what are the odds. Anyways, if you happen to receive this information, can you please email me at [email protected]?
Like I said, I'm searching for the same exact information for a similar problem and this would REALLY help as I can't power the speakers without this.
SOURCE: Dell MMS-5650 5.1 speakers not working
I found that placing my broadband wireless router next to the sub woofer produced this sound. Try moving any wireless enabled devices away from your sub woofer and speakers to see if it works.
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The best thing I can say is research online and find someone that you can send them to, there are people like me who repair electronics but if you aren't in the same location then you will have to package them up and mail them out, now the biggest question is what is it worth for you to replace them versus repair.
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