Sony WF-C700N FCC Teardown
Last week’s announcement and release of the Sony WF-C700N, means that the external and internal photos on the FCC no longer need to be hidden. This means we finally get to see the internal design of the new model and to my surprise Sony opted for a much different design than I was expecting.
While this is not a full teardown like something from 52Audio, this is the best we have for now. For a comparison with the WF-C500, see here.
tarting off with the top removed, we can see a few things. The wireless antenna is integrated into the button, with the antenna contact visible near the top (gold stripe). Just like with the previous WF-C500, there seems to be some kind of plastic circular enclosure around the battery and main PCB. The microphone mesh/hole design is similar to the LinkBuds S. The microphone hole in the PCB is visible on the left of the photo near the top.
The other side photos are perhaps a bit sharper but show nothing else different. I am not sure if the plastic parts on the cover are white because this is the other side or if the unit is a pre-production one.
Removing the underside of the case reveals the battery. The WF-C700N lacks any wireless charging like its predecessor, but there is room for a wireless charging coil if Sony were to add one. Unlike the WF-C500, there is no sticker on the underside which means there are no screws holding the bottom half of the case to the main section. The attachment is via clips like the LinkBuds S.
And now for a closer look at the earbud PCB. I have numbered the various parts.
- Bluetooth SoC – Airoha AB1562A
- Unknown chip
- Unknown chip
- Battery protection chip
- On board contact for wireless antenna
- Main button
- On board connector for flexible PCB
The red arrows on the left side show the on board contacts for the battery.
