My Yamaha CDX-660’s headphone out started to make crackling noise when I adjusted volume. Fix solution is easy and simple:
- Remove cover, and find the volume potentiometer:
I got an AKG K121 Studio headphone for repair in the following condition:
I don’t know what would happened with them. I think it just simply come apart during years. Since AKG headphones are Made in China plastic parts are broke, cable became stiff etc.. I never seen Made in Austria version come apart or with broken plastic parts.
After ~5 years of usage my favourite Beyerdynamic DT770 pro (250ohm) headphone’s headband sliders started to get hairline cracks. I read forums about this problem, its a very common issue. Original replacement parts also will crack so this is not the best solution for long term usage.
After more than 10 years my emu 1820m started to play noise when i tried to play music. Sounded like “white noise” and 15 minutes after every boot the noise seem to be disappeared.
When I dissasembled the dock unit I realized 2 buggy capacitors, and replaced it with 680uF 25V caps (bought from local electronics store). After replacement the noise disappeared immediately:
I also realized another buggy capacitors in outputs/inputs pcb. I didn’t hear that it would affect the sound, but they didn’t look good:
Replaced these 12 cap with same branded Jamicon 470uF 6,3V capacitors (bought from ebay):
I replaced the old rubber loops in my AKG K240 Monitor(600ohm). Rubber loop helps to adjust the size of the headband. I ordered from Bertaudio.
part number: 2040M0303
Gumitalpak E-MU 1820m audiodock aljára, ha az eredetiek esetleg már nincsenek meg. “Ütköző” néven lehet vásárolni, anyaga gumi, öntapadós, így egyszerűen felragasztható.
I bought new rubber feets for my emu 1820m audiodock because the original rubber feets are missing. I found in “Dome Bumpers” or “Bumper” names at my local DIY store. The bumpers are self-adhesive so you can easily stick to the bottom of the emu.