Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor
ID: 153017
Description: Nuraphones have a design flaw that leads to the...
Steps:
- For fixing the "deep sleep" issue, feel for the cup that has a flexible ring (capacitive sensor) around the face-side of the cushion. It should be the right cup.
- Grip the hard outer shell of the ear cup you want to disassemble.
- Completely cover the soft padding area with your other hand, squeeze to grip, and twist like opening a jar.
- Twist the left cup clockwise to open, and turn the right cup counter-clockwise to open.
- Remove 9 Torx T7 screws from the ring of the cup
- When reinstalling any plastic screw, insert the screw in the hole and rotate backwards (unscrew direction) with slight downward pressure until you feel a click - that locates the original thread and prevents stripping. Begin screwing it back in where you feel the click.
- Separate the two halves of the cup, revealing the skin mounting
- Fold back the skin, revealing the ear cup foam and (if fixing the Deep Sleep issue) the broken wire leading to the capacitive ring
- The capacitive sense wire will likely be buried halfway through the foam. Your job is to get it back through.
- It may help to squish the foam flat and fish the wire through the smaller, squished distance.
- Litz wire has enamel (insulation) wrapping every tiny strand individually. Thus, you need to melt it off the bundle at the tip - it should form a dark brown blob with some smoke, assisted by adding excess fluxed solder (and cleaning your soldering tip while doing so).
- After you have a tinned segment, you may wish to trim it to a clean, tinned tip (remove fraying at the end), then simply attach it back to the pad on the capacitive ring.
- You're done! Reverse the disassembly steps to re-assemble.
