If this Problem has come because you not use a speaker for a long time.I Know How to Repair. In This Morning. I had a Problem Like you but I Can Repair it. Try it you Self.I use a Plug and Play a lot of time. lot of charged. and a lot of on-off switch mm50. I do this for a 12 hour. in my school holiday. Battery is become life! . I Can Portable with It Again. but now is mid night
PS.This is true , I test with myself to Resurrection that Death Battery
I've just had the same problem today and found out that the connector that you insert the mains jack into (at the back) is glued onto the mother board with very light soldering joints and glue. that had come loose so there was no connection between the mains and the battery charger, which meant the battery (and in turn the iPod) wasn't charging. I need to re-solder the joints as it works when you take the back off and press the connector hard on to the mother Printed Circuit Board.
I would try a new power supply first. If that does not work then you need to buy a new battery. The power supply is pretty easy to locate but the battery (NTA2335) is VERY hard to find but here is a site that carries it: Replacement NTA2335 Battery for Logitech MM50 iPod Speaker I hope this helps!
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firstly check your power cable by moving the wire in various directions while it is plugged in ac outlet and powered on, if it lit up the standby power LED then the prob lies on the power cable. If not, try opening the speaker system box itself (be sure to unplugged the power cable before opening the box), then visually check inside for the little cylindrical glass type tube(if the circuitry still uses this kind of fuse) if it is burnt-out. Hope this help pal...
Make sure you have plugged the power for the speakers in to the wall socket,make sure that you have connected the speaker to the audio port in your back of your computer and if that does not work make sure the plugged that you have used is actually working correctly.check the speakers with other devices like your ipod ect...and try use other plugs in the house..I hope this helps you .
I am 100% sure the battery is dead.
Opening my mm50 I find that the small 2"X 1/4" battery is attached to the back, very near the charging socket. The battery is connected to the circuit board through a small plug-socket arrangement - no soldering here like iPod. So, it would not be difficult to replace it by a DIY enthusiast. But it would be difficult to find this non-standard replacement battery. Better leave the job to Logitech service, they'd would certainly replace it on charge basis.
if no light came from the speakers then something is corrupted inside them .. you have to check the power source and power cable of the speakers first ... if everything is fine then the speakers are corrupted from inside
Lol, sounds like that iPod sucked the power out of your house. Just kidding. If it is plugged into a wall outlet, make sure that the conections are not bent or warped in any way (remeber this stuff is very fragile so look for the smallest stuff). If it is plugged into one of those multi outlet devils, make sure that is not too clogged up. For those I always use the Male Bathroom Ediquate rule, never stand (nor plug) next to a guy in another urinal.