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Replacing Power Switch - Junior

To replace Junior’s power switch, you’ll need a Phillips head screwdriver, the flat-head screwdriver included in Junior’s box, and a new power switch.

Before starting any repair on Junior, turn his side power switch OFF and remove his dustbin.

Then, flip Junior over onto a flat surface and remove his main brush using the flat head screwdriver. Keep all removed screws and parts safely aside, as they may be needed for later reassembly.

Use a Phillips head screwdriver to remove the 7 screws on Junior’s underside that hold him together.

Junior’s cover is no longer secured, so hold the top and bottom together as you carefully flip him back onto his wheels. Grip Junior’s cover from the back and lift up to expose the mainboard.

Slide the power inlet down and tuck it somewhere safe to avoid compressing its wires.

To detach Junior’s cover completely, disconnect 4 circuit plugs.

Junior’s cover is now completely detached and can be set aside for the rest of the repair.

To remove the power switch, you must first uninstall the mainboard. Disconnect all remaining 11 circuit plugs from the mainboard. Press the small tab on each circuit plug and pull to disconnect.

Remove 3 screws on the mainboard.

Now lift the mainboard out of Junior.

Slide the power switch up and out of its space located on Junior’s side.

The wires feed into Junior’s battery compartment. Remove the screw holding the small wire cover, then lift it up and keep aside.

Gently pull the wiring through the gap and you’ll see the circuit junction that connects the switch to Junior’s battery. Pull to unplug.

Now you can slide the new power switch straight down into the space on Junior’s side. Make sure the switch is turned to OFF before connecting it to the battery.

Push the circuit junction into the side of the battery compartment so it is not stuck underneath. Then, place the switch’s wiring into the small indent on the battery compartment.

Replace the wire cover so it lies flat and install the screw that secures it.

Now you’re ready to replace the mainboard. Align the holes of the mainboard with the 3 screw posts on Junior’s interior.

Ensure that the mainboard sits flat before reinstalling the 3 screws.

Now reconnect all the circuit plugs correctly.

The order of plugs on the left side of the mainboard, from top to bottom, is:

  • A small plug with black and yellow wires.
  • A plug with two pairs of twisted wires
  • A plug with multi-colored wires for Junior’s left wheel,
  • And one empty space.

For now, the bottom of the mainboard will have two open spaces on the very left.

Then, the order from left to right is:

  • A small circuit plug with a red wire,
  • One more open space,
  • A small plug with yellow wires,
  • And lastly, a plug with multi-colored wires on the very right.

The order of plugs on the right side of the mainboard, from top to bottom is:

  • A wide circuit plug for Junior’s power switch,
  • And a plug with black and orange wires for Junior’s power inlet.

The order of plugs at the top of the mainboard, from left to right, is:

  • A small plug with red and green wires
  • A wide plug with multicoloured wires,
  • Two empty spaces for now
  • And a small plug with black and orange wires in the top right corner.

Now you’re ready to begin re-attaching the cover to Junior’s mainboard.

Reattach all 4 circuit plugs connecting Junior’s cover to the mainboard.

Remember to slide the power inlet back into its space on Junior’s cover.

Align the cover’s edges precisely. Then, flip Junior over onto a flat surface.

Ensure that no wires are compressed in the main brush compartment or visible at the edges of the bumper. If so, take a step back and lift the cover to tuck the wires into the appropriate spaces inside Junior.

Once the wires are all safely tucked away and Junior’s cover is aligned properly, reinstall all 7  screws previously removed from Junior’s underside.

Install the main brush and dustbin before your next use and Junior is completely reassembled!

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