DJI Phantom 4 Advanced Ultrasonic Sensor Replacement

はじめに

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.

必要な工具と部品

手順1 Propeller

DJI Phantom 4 Advanced Ultrasonic Sensor Replacement, Propeller: 手順 1、 2の画像 1

DJI Phantom 4 Advanced Ultrasonic Sensor Replacement, Propeller: 手順 1、 2の画像 2

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

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手順2 Shell

DJI Phantom 4 Advanced Ultrasonic Sensor Replacement, Shell: 手順 2、 2の画像 1

DJI Phantom 4 Advanced Ultrasonic Sensor Replacement, Shell: 手順 2、 2の画像 2

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

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手順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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手順4

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

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手順5

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

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手順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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手順7

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

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手順8

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

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手順9

DJI Phantom 4 Advanced Ultrasonic Sensor Replacement: 手順 9、 3の画像 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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手順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.