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| + | [title] Replace power smoothing capacitor for a larger one |
|---|---|
| + | [* black] Disassemble the microphone as in the video by a fellow hardware hacker https://www.youtube.com/watch?v=DDfCjkH2L5U |
| + | [* black] The key is; heat the glue - the glue is very tough and rubbery and strong - unlike regular melt stick glue. Be careful to not heat too much the mount in the middle that holds the microphone capsule. Pry-off the top, heat the glue, squeeze in the side grille into a spiral so it can be pulled out the top. |
| + | [* black] Remove screws of the separation plate and pull the board out. Its held in again with the same glue in the rails. |
| + | [* black] Note the capacitor is much smaller than the pads were designed for. For reasons I assume is - cost saving - the factory decided not to use three size of capacitor but just two. |
| + | [* black] Remove the capacitor and replace it with just a bigger one, perhaps from a donor board. Don't worry about the value - it just needs to smooth out the power supply rail for the FET. Ripples in the current are introduced as the devices sends USB packets every 1ms (at 1 kHz). This capacitor smooths those ripples out noticeably. |
| + | [* black] Do not test the microphone outside of its housing as all you'll hear is your typical 50Hz noise from the electrical system. |
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