Matsunichi M97 9 inch Speaker Replacement

はじめに

The Matsunichi M97’s speakers are behind a thin piece of metal, and after a drop or after extended use, the speakers may begin to sound tinny or may discontinue to make sound entirely. With this, disassembly of the device may be necessary to diagnose or fix any issues within the speakers themselves. For more information on soldering, please visit the How to Solder and Desolder Connections guide.

必要な工具と部品

手順1 Battery

Matsunichi M97 9 inch Speaker Replacement, Battery: 手順 1、 1の画像 1

Open the micro SD cover located on the back of the device.

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手順2

Using the Phillips #00 screwdriver, remove the two 4mm screws next to the micro SD port.

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手順3

Matsunichi M97 9 inch Speaker Replacement: 手順 3、 3の画像 3

Use the iFixit opening tool to pry off the back cover of the device.
The volume buttons and the lock switch will come loose when the back comes off.

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手順4

この手順で使用する道具：

Tweezers

$4.99

購入する

Use a pair of tweezers to disconnect the battery from the motherboard.

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手順5

Carefully unstick the battery from the frame using the spudger.
Do not bend or puncture the battery during removal.

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手順6 Motherboard

Matsunichi M97 9 inch Speaker Replacement, Motherboard: 手順 6、 2の画像 1

Matsunichi M97 9 inch Speaker Replacement, Motherboard: 手順 6、 2の画像 2

Remove the six 2mm screws that hold the motherboard onto the case using the Phillips #00 screwdriver.
Use the same screwdriver to remove the single 4mm screw.

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手順7

Gently pull the display ribbon cable to unplug it from the motherboard.

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手順8

Use a spudger or an iFixit opening tool to lift the locking mechanism holding the camera ribbon cable.

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手順9

Lift up on the wifi antenna cable to unsnap it from the motherboard.
Then unhook the cable from the holding bracket.

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手順10

Use the spudger or iFixit opening tool to lift up on the locking mechanism for the digitizer ribbon cable.
Pull the cable from its connection.

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手順11

Use the Phillips #00 screwdriver to remove the four 4mm screws that hold the speakers in place.

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手順12

Pull the vibration motor out of its housing.

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手順13

Lift the motherboard off the frame.

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手順14 Speaker

Matsunichi M97 9 inch Speaker Replacement, Speaker: 手順 14、 1の画像 1

Unsolder speakers from motherboard, removing both wires separately and one at a time.
Not a lot of solder is present - not a lot is necessary; therefore, using too much or not working quickly can result in permanent damage to the device.
For more information on soldering, please read the How to Solder and Desolder Connections guide.