Sony MDR-ZX770BN, enlarge jack connection

Step 1 Sony MDR-ZX770BN, enlarge jack connection




• The Sony MDR-ZX70BN is a good headphone in itself. Only the narrow jack connection is a "no go"
• Carefully pull off the auricle.
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Step 2



• Loosen a total of 6 screws. Small Phillips screwdriver. The screws can be placed on the speaker magnet. That way you don't lose ;-)
• Caution! When you open the speaker hangs on 2 thin cables.
• If you can solder, these can be separated. Makes it easier to continue working. The dark red is the + Will probably come off anyway.
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Step 3
• On the other side, carefully lift the lid. Is clipped.
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Step 4
• The Bluetooth antenna and a screw underneath appear.
• No need to remove the cable, just remove the adhesive to show.
• The small screw must be loosened so that the rest of the cover comes off.
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Step 5
• The inner workings. Loosen the small screw to remove the circuit board.
• I have disconnected the cable from the speaker because otherwise everything will be too fiddly.
• Push the clips in the 3rd picture slightly to the side and the blue ring will come off.
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Step 6
• Remove the ring and everything is free.
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Step 7
• Lever out the microphone upwards with a narrow but not pointed object.
• Lift the entire circuit board slightly and pull it backwards.
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Step 8
• Lift the circuit board and place some foam or something similar underneath.
• Now make the hole larger with a 6mm drill.
• File smooth with a round file.
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Step 9
• Test with jack plug. The plug itself should also fit in and not just the bare jack.
• If fits! Put everything back together in reverse order.
• If necessary, re-solder the cables.
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