lostbandicoot
New member
one day when i switched on my KRK Rokit 8 G2 Active studio monitor, i get a very loud humm/Buzz very much like in this video here :
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i had assumed it would probably have something to do with damaged or old Capacitors & or a known issue where the manufacturer uses a type of adhesive AKA Black goo of death that becomes conductive overtime. so what i first did was remove as much black goop as i possibly could and cleaned it with isopropyl alcohol.
next step was replacing some of the larger caps and resistors
C100 & C101 - 2x 4700uF 50V
C108 & C109 - 2x 1000uF 35V
R100 & R101 - 2x 2.2K 0.5W
CL100 & CL103 - 220uF 16V (Because i had them lying around from a previous project)
after these replacements i then connected everything back together, switched on the speaker and the Humm was still there.
[
i had assumed it would probably have something to do with damaged or old Capacitors & or a known issue where the manufacturer uses a type of adhesive AKA Black goo of death that becomes conductive overtime. so what i first did was remove as much black goop as i possibly could and cleaned it with isopropyl alcohol.
next step was replacing some of the larger caps and resistors
C100 & C101 - 2x 4700uF 50V
C108 & C109 - 2x 1000uF 35V
R100 & R101 - 2x 2.2K 0.5W
CL100 & CL103 - 220uF 16V (Because i had them lying around from a previous project)
after these replacements i then connected everything back together, switched on the speaker and the Humm was still there.
