Hi. This is my first thread at this forums so please do not be harsh.
I am just a novice in electronics, all my experience is in power supply design and stm32 mcu programming. No audio electronics experience.
The problem: Unknown model MALONE wireless loudspeaker randomly drops it volume after few minutes of playing music with highest volume. The volume drop happens randomly, like half of second it plays with no issues and then half of second the volume drops dramatically. This random volume change happens continiously.
Loudspeaker was working with no problems until it was used at max volume for like 4 hours. Afterwards these problems started to occur even after some minutes of playing.
My thoughts:
Time needed for this issue to happen makes me think that it is related to temperature, as temperature rise needs time.
When I dissassambled the loudspeaker I noticed that crossover network has high power resistor, which probably dissipates a lot of energy.
Right next to it there is a capacitor.
I think that this capacitor migh have been permamently damaged from high temperature when loudspeaker was used at max volume for 4 hours.
Anyway it seems strange that the random volume drop happens very sharply.
So, what do you guys think?
Thanks in advance.
I am just a novice in electronics, all my experience is in power supply design and stm32 mcu programming. No audio electronics experience.
The problem: Unknown model MALONE wireless loudspeaker randomly drops it volume after few minutes of playing music with highest volume. The volume drop happens randomly, like half of second it plays with no issues and then half of second the volume drops dramatically. This random volume change happens continiously.
Loudspeaker was working with no problems until it was used at max volume for like 4 hours. Afterwards these problems started to occur even after some minutes of playing.
My thoughts:
Time needed for this issue to happen makes me think that it is related to temperature, as temperature rise needs time.
When I dissassambled the loudspeaker I noticed that crossover network has high power resistor, which probably dissipates a lot of energy.
Right next to it there is a capacitor.
I think that this capacitor migh have been permamently damaged from high temperature when loudspeaker was used at max volume for 4 hours.
Anyway it seems strange that the random volume drop happens very sharply.
So, what do you guys think?
Thanks in advance.
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