KMichaelM
Newbie level 3
Hi everyone
I was hoping that someone would be able to help me out with my HKTS subwoofer power board. Having disconnected it for christmas, i was reconfiguring the setup and noticed it wasnt working so I decided to open it up and found some issues on the power supply side. I should mention that my electronic knowledge is rather novice but I am eager to educate myself in order to fix it yet at the current moment my limits have been reached.
Initially I discovered a rather darkened resistor (R23) and decided to swap it for a new for good measure. The old did however test out and was within tolerance.
I also encountered a lot of burnt glue which I removed to the best of my ability.
Thirdly, I replaced two capacitors (C5 & C26) which according to others tend to go back even though mine looked fine. I dont have an ESR meter so wasnt able to confirm whether or not they were actually bad.
I saw a video on youtube describing the MOSFETS as the culprit and decided to check them out. I tested them with my multimeter and they work as intended.
Currently, I am out of ideas.
I did have some issues with the soldering and especially around the resistor the board looks somewhat damaged, perhaps from before as the board was darkened a bit. I tested the continuity and it does beep. Do you think it could be an issue?
What would be my next steps? Any help is appreciated.
I was hoping that someone would be able to help me out with my HKTS subwoofer power board. Having disconnected it for christmas, i was reconfiguring the setup and noticed it wasnt working so I decided to open it up and found some issues on the power supply side. I should mention that my electronic knowledge is rather novice but I am eager to educate myself in order to fix it yet at the current moment my limits have been reached.
Initially I discovered a rather darkened resistor (R23) and decided to swap it for a new for good measure. The old did however test out and was within tolerance.
I also encountered a lot of burnt glue which I removed to the best of my ability.
Thirdly, I replaced two capacitors (C5 & C26) which according to others tend to go back even though mine looked fine. I dont have an ESR meter so wasnt able to confirm whether or not they were actually bad.
I saw a video on youtube describing the MOSFETS as the culprit and decided to check them out. I tested them with my multimeter and they work as intended.
Currently, I am out of ideas.
I did have some issues with the soldering and especially around the resistor the board looks somewhat damaged, perhaps from before as the board was darkened a bit. I tested the continuity and it does beep. Do you think it could be an issue?
What would be my next steps? Any help is appreciated.