Introduction

This guide will show you how to replace the circuit board for the Philips Sonicare 2 Series toothbrush. He is a link for a guide how to soldering which will be needed for this guide. How To Solder and Desolder Connections

Remove brush on top of device.
  • Remove brush on top of device.

Remove the 1.85 mm screw on the bottom of the toothbrush with a T9 star bit.  After removing the screw, pry off the base with a flat head screw driver.
  • Remove the 1.85 mm screw on the bottom of the toothbrush with a T9 star bit. After removing the screw, pry off the base with a flat head screw driver.

Remove the internal electronic mechanism from the housing by prying the red clips shown in the figure. This removes the charging port. Be very careful not to damage the charging port during this step.  Otherwise you will have to solder this part back to the device as shown in the second figure.
  • Remove the internal electronic mechanism from the housing by prying the red clips shown in the figure. This removes the charging port.

  • Be very careful not to damage the charging port during this step. Otherwise you will have to solder this part back to the device as shown in the second figure.

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Next you will be able to remove the internal electronic mechanism as shown in the figure.
  • Next you will be able to remove the internal electronic mechanism as shown in the figure.

Remove the white battery cover as shown in the figure.
  • Remove the white battery cover as shown in the figure.

Remove the white circuit board cover as shown. This cover will require you to pry off the piece from the groves .
  • Remove the white circuit board cover as shown. This cover will require you to pry off the piece from the groves .

Pry away the battery using an opening tool from the battery housing. This will break the circuit and avoid electric shock.
  • Pry away the battery using an opening tool from the battery housing. This will break the circuit and avoid electric shock.

Desolder the circuit board from the motor as shown.
  • Desolder the circuit board from the motor as shown.

Desolder the circuit board from the housing as shown to remove the board
  • Desolder the circuit board from the housing as shown to remove the board

Conclusion

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

One other person completed this guide.

Jonathan Jarvis

Member since: 04/01/2016

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IUPUI, Team S6-G2, Baechle Fall 2017 Member of IUPUI, Team S6-G2, Baechle Fall 2017

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