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My speakers stopped working

Moha-10

Apr 1, 2024
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Apr 1, 2024
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I have Logitech surround sound speakers. They are a bit older Logitech z506. I moved to another country and shipped my stuff in a container, once I connected them they worked for some time (almost 1 weeks) and now when they are connected to the power I only hear a short high pitch noise from the sub, l opened it up and took everything out, the power supply makes the sound but only when connected to the motherboard (I don't know what it's called) I testet all everything on the board that I could and it looks fine but the power supply doesn't make any sound when connected alone so l assumed it comes from the motherboard but I keep getting the feeling it is from the power supply unless there is a short on the motherboard that I can not figure out I hoped that someone with more knowledge can help me with this that's why I came to Reddit. Thank you in advance!
 

Bluejets

Oct 5, 2014
6,921
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Oct 5, 2014
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Working on smps require quite a bit of knowledge in that area along with an amount of testing equipment.
You don't say what you have let alone whether you have a circuit diagram or not and whether or not you can read and apply a circuit diagram.
The latter would be essential.

What voltage is the country you came from and what is it where you are now?
 

Martaine2005

May 12, 2015
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May 12, 2015
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4,949
The voltage shouldn’t be a concern as SMPS are usually within a wide range between 90V-240V. Unless the system is one voltage only?.
This is more than likely a coincidence and would have failed anyway.
Unless of course, the move and any consequential drops/knocks forced a premature failure.
I would start by replacing the electrolytic capacitors in the power supply as a matter of course and while in there, check the surge/transient devices.
And of course, all solder joints, especially on the heavier devices.

BTW, this is not Reddit ;)
Welcome to Maker.Pro!
 

Bluejets

Oct 5, 2014
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$25 for a replacement...hardly worth the effort of getting out any repair tools.
 
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