メインコンテンツにスキップ

Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor

  1. Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor, Grip and twist: 手順 1、 3の画像 1 Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor, Grip and twist: 手順 1、 3の画像 2 Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor, Grip and twist: 手順 1、 3の画像 3
    • 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.

  2. Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor, Remove screws and fold skin back: 手順 2、 3の画像 1 Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor, Remove screws and fold skin back: 手順 2、 3の画像 2 Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor, Remove screws and fold skin back: 手順 2、 3の画像 3
    • 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

  3. Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor, Pull the wire through the foam: 手順 3、 2の画像 1 Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor, Pull the wire through the foam: 手順 3、 2の画像 2
    • 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.

  4. Repairing Nuraphones "Entering Deep Sleep" Broken Capacitive Sensor, Tin the Litz wire and resolder to ring: 手順 4、 1の画像 1
    • 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.

終わりに

To reassemble your device, follow these instructions in reverse order.

4 の人々がこのガイドを完成させました。

作成者

1人の作成者と共同作成されました。

Matt Falcon

メンバー登録日: 05/09/15

2,381 ポイント

14のガイドは作成済み

2 件のコメント

Solder joint might look OK, but actually isn’t!

Three things I observed with my Nuraphones:

1. While the solder joint looked like it wasn’t broken and the wire appeared to be still connected to the solder blob, it actually was only held by Kevlar core inside the copper wire. The surrounding copper threads had been torn off, which was impossible to see with the naked eye, due to the fact that the blob was partially covered with copper rust AKA verdigris.Unfortunately I forgot to take a before picture, but here you can see the Kevlar and the verdigris:

https://live.staticflickr.com/65535/5344...

https://live.staticflickr.com/65535/5344...

In other words: Insufficient contact although looking OK on visual inspection.

Andre Klein - 返信

2. The ring shaped, capacitive FlexPCB had detached from the foam pad (the adhesive strip inbetween was smeary and gooey than sticky, I assume from aging), and thus had shifted, no longer making proper contact with the skin around the right ear. I removed the gooey, aged adhesive and carefully reattached the FlexPCB to the foam pad using several superglue areas.

Note that the foam pad ring appears to have a bigger diameter than the FlexPCB ring and the silicone cup. To me it looks as if the foam pad gets compressed in X/Y direction when inserted into the silicone cup, which makes reattaching the FlexPCB with its fixed diameter a bit cumbersome (I'm pretty sure they must have used a jig for compressing the foam pad in the factory to attach the FlexPCB). I helped myself by cutting the transparent Kapton section of the FlexPCB to turn it into an open ring.

3. The missing capacitive skin contact (either from broken solder joint or shifted FlexPCB), actually stops the two touch buttons on the ear cups from working. So even if the headphones are on and temporarily working until they fall asleep, the touch buttons don’t respond because of the faulty capacitive wear sensor.

Andre Klein - 返信

コメントを追加

統計データ:

過去 24時間: 2

過去 7 日: 3

過去 30 日: 34

今までの合計 1,371