DJI Phantom 4 Advanced Ultrasonic Sensor Replacement

Введение

The ultrasonic sensors use sound waves to help position the drone in three-dimensional space. If your DJI drone experiences either erratic flight behavior or the inability to hold its position when staying still in the air your ultrasonic sensors may need to be replaced.

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Шаг 1 Propeller

DJI Phantom 4 Advanced Ultrasonic Sensor Replacement, Propeller: шаг 1, изображение 1 из 2

DJI Phantom 4 Advanced Ultrasonic Sensor Replacement, Propeller: шаг 1, изображение 2 из 2

Use your finger tips to pinch the damaged propeller.
Twist the propeller counterclockwise and pull up to remove.

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Шаг 2 Shell

DJI Phantom 4 Advanced Ultrasonic Sensor Replacement, Shell: шаг 2, изображение 1 из 2

DJI Phantom 4 Advanced Ultrasonic Sensor Replacement, Shell: шаг 2, изображение 2 из 2

Remove the eight 7 mm hex screws by turning counterclockwise with a 2 mm hex bit.

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Шаг 3

Pry the LED motor covers off with a metal spudger.
The prying location is marked by an indent that points outward from the arm.

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Шаг 4

Pry the paper covering off the four corners with a metal spudger.

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Шаг 5

Remove the twelve 8.7 mm hex screws with a 2 mm hex bit from the motor bases.

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Шаг 6

Flip the drone on its back
Remove the eight 4.5 mm hex screws by turning them counterclockwise with a 1.5 mm hex bit.
Separate the mesh from the drone by pulling up gently and rocking left to right.
The cable connects from the camera to the drone. Pulling up could rip the connection. Tilt the mesh 90 degrees towards the cable.

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Шаг 7

Remove two 1.2mm screws using the JIS #000 bit from the camera cable retaining bracket.

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Шаг 8

Lift the camera connector at one end with your hand and remove the mesh.

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Шаг 9

DJI Phantom 4 Advanced Ultrasonic Sensor Replacement: шаг 9, изображение 3 из 3

Remove the two 1.2 mm screws using a JIS #000 bit from the antenna retaining bracket.
Pull the four U.FL antennae up.
The U.FL antenna connectors are fragile.
Remove the two 4 mm screws using a JIS #000 bit.

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Шаг 10

Pry apart the clamshell at the motor end.
Separate the clamshell.
Two wires connect from the lower frame to the upper frame at the front of the drone. Pulling the clamshell apart hard may damage the connectors and wires.