Sony MDR-ZX770BN, enlarge jack connection

ID: 117845

Description:

Steps:

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

3. Loosen a total of 6 screws. Small Phillips screwdriver. The screws can be placed on the speaker magnet. That way you don't lose ;-)
4. Caution! When you open the speaker hangs on 2 thin cables.
5. If you can solder, these can be separated. Makes it easier to continue working. The dark red is the + Will probably come off anyway.

6. On the other side, carefully lift the lid. Is clipped.

7. The Bluetooth antenna and a screw underneath appear.
8. No need to remove the cable, just remove the adhesive to show.
9. The small screw must be loosened so that the rest of the cover comes off.

10. The inner workings. Loosen the small screw to remove the circuit board.
11. I have disconnected the cable from the speaker because otherwise everything will be too fiddly.
12. Push the clips in the 3rd picture slightly to the side and the blue ring will come off.

13. Remove the ring and everything is free.

14. Lever out the microphone upwards with a narrow but not pointed object.
15. Lift the entire circuit board slightly and pull it backwards.

16. Lift the circuit board and place some foam or something similar underneath.
17. Now make the hole larger with a 6mm drill.
18. File smooth with a round file.

19. Test with jack plug. The plug itself should also fit in and not just the bare jack.
20. If fits! Put everything back together in reverse order.
21. If necessary, re-solder the cables.