Connecting a karaoke microphone to a DSLR camera
This review shows examples of connecting a dynamic directional "karaoke" microphone to a DSLR camera:
1) a dynamic, directional "karaoke" microphone,
bypassing the camera's power supply;
2) measuring the power supply voltage of the NikoN D5100 DSLR microphone input;
3) connecting a 3-pin MKE-3 electret microphone
without additional phantom power or modifications.
The soldering diagram is in the description.
We're converting a dynamic microphone by soldering a capacitor in the signal wire:
1) Unsolder the center conductor of the wire from the dynamic head.
2) Solder a capacitor (1-10 μF, up to 16V) in place of the unsoldered wire, with the negative terminal facing the dynamic head.
3) Solder the unsoldered center conductor to the positive terminal of the capacitor.
That's it, the conversion is ready for use with a DSLR camera.
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Connecting a 3-pin electret microphone.
MKE-3 microphones were manufactured with wires of different colors:
1) Ground, also known as positive power supply +4.5V (blue, black, green)
2) Output, also known as signal wire (white, yellow, orange)
3) Negative power supply -4.5V (red, brown)
Connection:
1) The imported capsule has 2 terminals, so we make two terminals out of the three on the MKE-3.
To do this, connect the negative power supply wire (red or brown) of the microphone to the signal wire (white, yellow, or orange) to form a single wire, then solder it to the ground of the mini-jack. 2) Solder a wire (blue, black, or green) to the center pin of the mono mini-jack. For a stereo connection, solder it to the two center pins of the mini-jack in parallel.
When connected correctly, the microphone and camera will work immediately.