Introduction

This guide will demonstrate how to replace any of the push button switches on the circuit board. Each button has four solder pads to desolder. When replaced these must be in the correct orientation in order for the device to work. For soldering help, follow the How to Solder and Desolder Connections guide.

  1. Remove the five screws (13mm long, 6mm head) attaching the Base Cover using a Phillips screwdriver (Ph2).
    • Remove the five screws (13mm long, 6mm head) attaching the Base Cover using a Phillips screwdriver (Ph2).

    • Remove the two screws (13 mm long, 6mm head) attaching the Base Cover using a T10 screwdriver.

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  2. Carefully remove the second layer from the base. You will not need a screwdriver for this step.
    • Carefully remove the second layer from the base. You will not need a screwdriver for this step.

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    • Remove the 2 screws (13mm, 6mm head) connected to the plastic piece holding down the power cord.

    • Then remove the additional 4 screws (13mm, 6mm head) and 2 screws (11mm, 5mm head) securing the base.

    • Carefully lift the base up from the rest of the blender.

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    • Remove 4 screws (11mm, 4mm head) connecting the circuit board to the base.

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    • Locate which button you wish to replace.

    • On the back of the circuit board from the button, there are four solder pads with the designation "SW" followed by a number.

    What changes required if we need to run this PCB on 220V? My PCB number BL770

    Ajay Dumasiya - Reply

Conclusion

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

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