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Braun Oral-B Sonic Complete 4729 Battery Replacement

Introdução

The device has to be opened and partly disassembled. The battery has to be unsoldered from the logic board and can then be replaced.

O que você precisa

  1. Braun Oral-B Sonic Complete 4729 Battery Replacement, Opening the bottom lid: passo 1, imagem 1 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Opening the bottom lid: passo 1, imagem 2 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Opening the bottom lid: passo 1, imagem 3 %32

    • Take the device and place it on top of its charger.

    • Now hold down firmly the charger and pull the top of the toothbrush backwards.

    • Just above the lid there is the induction coil, so don't pull too much, or it could get damaged!

    • When the lid at the bottom opens, stop pulling and take it off manually

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  2. Braun Oral-B Sonic Complete 4729 Battery Replacement, Pull of the water protection ring: passo 2, imagem 1 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Pull of the water protection ring: passo 2, imagem 2 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Pull of the water protection ring: passo 2, imagem 3 %32

    • Take the screwdriver (or the plastic opening tool) and go under the ring at the top of the gummed area.

    • Now rotate it slightly so the ring comes loose.

    • Be careful not to damage the gum under the ring, as it assures that no water gets inside!

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  3. Braun Oral-B Sonic Complete 4729 Battery Replacement, Take out the interior: passo 3, imagem 1 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Take out the interior: passo 3, imagem 2 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Take out the interior: passo 3, imagem 3 %32

    • Push the point of the device down onto the table and take out the inside.

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  5. Braun Oral-B Sonic Complete 4729 Battery Replacement, Clearing the way for the battery (Part 1): passo 4, imagem 1 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Clearing the way for the battery (Part 1): passo 4, imagem 2 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Clearing the way for the battery (Part 1): passo 4, imagem 3 %32

    • First take away the metal sheet of the start/stop button.

    • Then pull the center of the black metal connection of the pressure sensor slightly upwards until the hook holding it to the sensor comes loose.

    • Now it has to be desoldered from the logic board.

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  6. Braun Oral-B Sonic Complete 4729 Battery Replacement, Clearing the way for the battery (Part 2): passo 5, imagem 1 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Clearing the way for the battery (Part 2): passo 5, imagem 2 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Clearing the way for the battery (Part 2): passo 5, imagem 3 %32

    • Now you have to desolder the sensor connection and both the connections to the red led at the top.

    • The white plastic pins left and right to the led connections can easily melt!

    • Then desolder the connections to the charging coil.

    • Be careful not to touch nearby electronic components, as they could get damaged!

    • And keep the soldering time short and remove the soldering iron as soon as the solder has become liquid, so there is no overheating risk!

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  7. Braun Oral-B Sonic Complete 4729 Battery Replacement, Clearing the way for the battery (Part 3): passo 6, imagem 1 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Clearing the way for the battery (Part 3): passo 6, imagem 2 %32 Braun Oral-B Sonic Complete 4729 Battery Replacement, Clearing the way for the battery (Part 3): passo 6, imagem 3 %32

    • First pull off the white plastic support for the red led.

    • Then push the plastic casing of the battery together to pull of the coil.

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  8. Braun Oral-B Sonic Complete 4729 Battery Replacement, Clearing the way for the battery (Part 3): passo 7, imagem 1 %32

    • Now the connections to the motor have to be desoldered to take the battery casing of.

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Conclusão

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

5 outras pessoas executaram este guia.

Autor(a)

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TheFixaholic

Membro desde: 04/27/15

600 Reputação

Autoria de 2 guias

Emblemas: 5

+2 outros emblemas

2 comentários

A good guide but I found removing the bottom quite troublesome. Levering against the charging base felt like it would break the base. I needed to lever it in stages, wedge it and grab and pull it with mole grips. This damaged the plastic a little, but I got it off.

Cone - Responder

Hmm, maybe they changed the construction. When I created the guide the bottoms (of the 2 toothbrushes I repaired) opened quite easily, but that's good to know.
Also I do not think you need to worry about breaking the base: as most chargers that you plug in the mains, it should be completely filled with a hard resin, and thus be almost indestructible.

TheFixaholic -

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