Can you tell me if it can be repaired and if so, what parts do I need? And for the context, my subwoofer started making a loud noise when is on. I opened it to look at the amplifier and noticed that there was a melted brown substance that I removed, you can still see the traces where it was. And now I see that some parts at the base are melted!? What can I do?
Attachments
From your pictures, it's hard to tell what may be glue and what may be something else going on. See discussion here:
https://sound-au.com/articles/yellow-glue.htm
What brand is the subwoofer? Does it have a hum at line frequency or some other kind of noise? Without more information, it's harder for people to help.
Sometimes it makes sense to replace the amp completely either by finding one like yours used on eBay (or wherever) or buying a new plate amp.
https://sound-au.com/articles/yellow-glue.htm
What brand is the subwoofer? Does it have a hum at line frequency or some other kind of noise? Without more information, it's harder for people to help.
Sometimes it makes sense to replace the amp completely either by finding one like yours used on eBay (or wherever) or buying a new plate amp.
Electrolyte (the brown substance) leaked from one or more of the capacitors. They may all be near end of life.
They are usually marked with a band on the cathode side of the capacitor indicating the negative terminal but there are some exceptions. The value in μF (microfarads) needs to be close to the specification, the value of V (volts) should be equal or greater than the one printed on the case.
The electrolyte is electrically conductive, the leakage may also have caused other components to fail.
Can't tell what other parts need to be replaced from the photo.
They are usually marked with a band on the cathode side of the capacitor indicating the negative terminal but there are some exceptions. The value in μF (microfarads) needs to be close to the specification, the value of V (volts) should be equal or greater than the one printed on the case.
The electrolyte is electrically conductive, the leakage may also have caused other components to fail.
Can't tell what other parts need to be replaced from the photo.
For me, it looks like glue, used very often.
If the caps leaks, i don't think it would be spread onto that connector like that.
If not sure, desold caps, and take them out.
If the caps leaks, i don't think it would be spread onto that connector like that.
If not sure, desold caps, and take them out.
Looks like a dual layer pcb, smd on the other side. It seems you don't have much understanding about electronics, so it will be better if you take that to near repairing shop.
Best regards
Best regards
To answer, troubleshooting is needed, meaning measurements, taking voltage tests, etc.
A picture or verbal description is not enough.
Then probably your power amp died/shorted.
But we need tests.
We don't even know what the amplifier actually is, the schematic, not even brand and model ☹️
Hard to advance with zero information.
The brown substance looks like glue, applied in a somewhat sloppy way but not indicating a problem by itself.
Best is to take it to a local Tech who can see - touch - measure.
And even so, if it is a "mystery" brand or model, no schematics available, it will be hard for him.