I blew my sub last weekend. I did everything to get the grill off and finally had to drill holes in it to get to the others holding the sub down. It is screwed down over the plastic piece which holds the grill. I put a RF Punch in and so far so good.
You will probably get sound that is worse, because the box where the sub is in, is exactly calculated for the logitech sub, and if you put another sub in, it won't be.
so i suggest you leave the sub alone :D
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The Logitech is a little tricky. You need to carefully pry off the white bezel around the speakers and then pry away the grills. Under the grill you will find four screws holding the two speakers, and four screws set deep in holes.
Undo these eight screws and the front will come off.
Hi there bud , There could be a number of problems as it is a refurbished Speaker Set ,It could be The Subwoofer yes , Have you tried it on other PC's? if it does the same then it is The SPeakers that are faulty :( Hope this helps Happy new year :)
SPEAKER GRILLE Removal
Pull the SPEAKER-GRILLE away from the cabinet to remove.
1) Remove 10 screws (a) from the upper cabinet rear cover (3 screws on each side and 4 screws across the
2) Remove screws (b) along the bottom of the SCREEN-ASSY (8 screws on 52 inch models, and 12 screws
on 62 inch models),
3) Unplug the LL connector to the front CONTROL-PANEL.
4) Lift the SCREEN-ASSY up slightly and then pull away from the cabinet.
CABINET FRONT DISASSEMBLY
at this point your hands are tied to fix these due to a capacitor failure or whatever. you can try wrapping the fuse in aluminum foil but this may cause even further problems but i have seen it work before. be sure to keep a close eye on these if this works because the fuse is ultimately a safety device.
you can access the outer headlights from under the hood. the inner healights have to be replaced by removing the grille. after grille is removed you will see 10 mm head bolts above & possibly below the headlight bracket remove them & headlight capsule should come right out.
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.
The logitech z 5500 digital is very sensitive to power peaks. One of the most know problems is that the fuse breaks because of these peaks. I´ll show you how to replace the system´s fuse.
First of all, you just need to write down the specification of the system´s fuse. The system´s fuse specifications are printed in the back side of your subwoofer, right next to the subwoofer´s on/off switch. In an european system it says: "T2AH250V (Time Delayed)". If you use another power voltage (120v), it may say something different. Anyway, write it down on a piece of paper and go to an electricity store and ask for a similar fuse (It is very cheap. Not more than 1$)
-The best way to get a similar fuse would be by bringing the broken fuse with yourself to the store-
In the back of your subwoofer, using an screw-driver, un-screw the fuse´s cover and remove the broken fuse. Replace it with the new fuse, attatch it to the cover and screw it back again.
If you turn on your system now, it will probably work fine.
The stand was held on with a nut on the inside.
There is not longer a nut on the inside of the hole, so there is now nothing for the stand screw to attach to.
The nut is now stuck to the magnet on the speaker.
You will need to disassemble the speaker housing to remove the nut from the speaker magnet and reattach then stand.