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Cette vue éclatée n'est pas un tutoriel de réparation. Pour réparer votre Garmin Vivosmart, utilisez notre manuel de réparation.

  1. Garmin Vivosmart Teardown, Remove Electronics from Strap: étape 1, image 1 de 3 Garmin Vivosmart Teardown, Remove Electronics from Strap: étape 1, image 2 de 3 Garmin Vivosmart Teardown, Remove Electronics from Strap: étape 1, image 3 de 3
    • I was able to get at the electronics by bending the strap and prying the hard plastic enclosure out with a sharp utility razor.

    • Note the 4 metal pads where the USB interface connects - we'll come back to those.

    • The Vivosmart is waterproof rated up to 5 ATM so accessing the electronics is not easy. Keep prying and picking away and it will come out eventually.

    • The electronics will eventually come out in one enclosed package and you'll be left with a flexible strap with a translucent insert.

    • Note the feel of the strap - Garmin possibly used a soft TPS rather than the stickier feeling silicone rubber commonly used in other wearable devices.

  2. Garmin Vivosmart Teardown, Access the Electronics: étape 2, image 1 de 3 Garmin Vivosmart Teardown, Access the Electronics: étape 2, image 2 de 3 Garmin Vivosmart Teardown, Access the Electronics: étape 2, image 3 de 3
    • Here's the electronics enclosure, with silicone sealant all around the edges.

    • Looking at the side - the flex connectors go up from the PCB to the display. One for the OLED array and one for... stay tuned.

    • Clear away a whole bunch more of the sealant with your razor blade and the clear plastic cover can be pried off to reveal the PCB.

  3. Garmin Vivosmart Teardown, Examine the OLED Display and Touch Interface: étape 3, image 1 de 3 Garmin Vivosmart Teardown, Examine the OLED Display and Touch Interface: étape 3, image 2 de 3 Garmin Vivosmart Teardown, Examine the OLED Display and Touch Interface: étape 3, image 3 de 3
    • Now to take a look at that display...

    • The flexible display strip can be peeled away from the clear rigid plastic.

    • A closer look at the display strip reveals that it can be further split into two strips. One is a 128 x 16 OLED display.

    • The other is a capacitive touch sensor.

    • Note in pic 3 that there are 4 sensing pads on the capacitive touch sensor - this allows you to select menu items and swipe

  4. Garmin Vivosmart Teardown, Remove the PCB Assembly: étape 4, image 1 de 3 Garmin Vivosmart Teardown, Remove the PCB Assembly: étape 4, image 2 de 3 Garmin Vivosmart Teardown, Remove the PCB Assembly: étape 4, image 3 de 3
    • To remove the electronics from the hard plastic base we need to dig out a lot more sealant.

    • I first pried up the end of the PCB near the USB interface.

    • Notice the spring contacts coming from the 4 USB conductor pads - these come in contact with pads on the PCB.

    • Finally (pic 2) the electrical assembly is free! Three rigid boards connected by flex.

    • Check out the antenna built into the flex circuitry - looks like a PIFA.

    • You can keep prying and release the

    • 70mAh Li-ion battery

    • and buzzer.

  5. Garmin Vivosmart Teardown, Explore the PCB: étape 5, image 1 de 3 Garmin Vivosmart Teardown, Explore the PCB: étape 5, image 2 de 3 Garmin Vivosmart Teardown, Explore the PCB: étape 5, image 3 de 3
    • Now let's see what kinds of ICs are being used:

    • Nordic nRF51422 low power RF SoC. Used for Bluetooth LE.

    • Cypress CY8C20767capacitive touch controller.

    • Maxim 14676B wearable charge management IC.

    • Assumed to be an ARM Cortex-M microcontroller. Freescale, the manufacturer, is no longer in business, as it was purchased by NXP recently - this makes it hard to look up the marking.

    • There are all kinds of test points visible on the back. Garmin must do a pretty thorough QA.

    • Looking side-on, you can see that the flex circuitry is sandwiched between two sets of rigid PCB.

  6. Garmin Vivosmart Teardown, Examine the Mechanical Components: étape 6, image 1 de 3 Garmin Vivosmart Teardown, Examine the Mechanical Components: étape 6, image 2 de 3 Garmin Vivosmart Teardown, Examine the Mechanical Components: étape 6, image 3 de 3
    • While we're at it, let's take a quick look at some of the mechanical parts.

    • First, the rigid (probably ABS) injection molded base plate for the electronics.

    • The plastic strap lock has a brushed aluminum plate crimped to it with the Garmin logo embossed. Nice touch!

    • A close look at the strap holder reveals part lines on the inside and outside - probably a multi pull mold. (really hard to see here - sorry).

    • Now that your Vivosmart is all torn down... it's probably not going back together again easily. Hopefully this guide saved you from pulling yours apart.

dfghe34yh46u34

Membre depuis le 12/27/15

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6 commentaires

Pleaae, do you have any knowledge about the charging pin voltage sequence or configuration.

Basim Al-Shammari - Réponse

Hello!

Is there any possibility to connect it to any programing protocols, ISP for example, in order developing own firmware for this device?

artem.prof - Réponse

for charging use 1st and last pins on the device, when u look back on vivosmart (pins up) 1st pin is + last is - use max 5v1A (middle 2 pins are usb connection)

Сибел Орлинова - Réponse

I need to replace the clear rigid plastic cover after a kayaking trip. How can I find this piece to replace?

Thank you.

dfrowe@comcast.net

DiAnne Rowe - Réponse

Information about microcontroller!!!

http://cache.freescale.com/files/microco...

Thanks for the tear down!!! ;)

bolita.fb - Réponse

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