Azpen A720 Touch Screen Replacement

はじめに

The touchscreen is embedded in the outer front casing of your Azpen A720 tablet. If the front touch screen is cracked or is not responding properly to touch, you should replace it. This replacement is moderately difficult, and it may take some time and patience, but this guide will help you through the process of replacing the tablet's front casing and touch screen.

必要な工具と部品

手順1 Back Cover

Azpen A720 Touch Screen Replacement, Back Cover: 手順 1、 2の画像 1

Azpen A720 Touch Screen Replacement, Back Cover: 手順 1、 2の画像 2

Use a Phillips #00 screwdriver to remove the two 4mm screws found on the top edge of the tablet near the power button.

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手順2

Azpen A720 Touch Screen Replacement: 手順 2、 3の画像 3

Use the plastic opening tool to pry the white back from the silver frame. Start near the micro SD slot.
Slide the plastic opening tool around the perimeter of the casing until the back is disconnected.

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手順3

Remove the rear casing.

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手順4 Touch Screen

Azpen A720 Touch Screen Replacement, Touch Screen: 手順 4、 3の画像 1

Azpen A720 Touch Screen Replacement, Touch Screen: 手順 4、 3の画像 2

Azpen A720 Touch Screen Replacement, Touch Screen: 手順 4、 3の画像 3

Use the plastic opening tool to gently lift the release lever for the ZIF cable.
The ZIF connector is delicate. Be careful not to damage the tab!

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手順5

Gently remove the ZIF cable from the connector.

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手順6

Disconnect the second ZIF connector using the same method detailed earlier.

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手順7

Azpen A720 Touch Screen Replacement: 手順 7、 3の画像 3

Locate the microphone. It is at the top of the device and next to the audio jack.
Using tweezers, gently remove the microphone.
Remember to reinsert the microphone when reassembling!

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手順8

Azpen A720 Touch Screen Replacement: 手順 8、 3の画像 3

Remove the three 4mm Phillips #00 screws securing the motherboard in place.

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手順9

Azpen A720 Touch Screen Replacement: 手順 9、 3の画像 3

Remove the motherboard from the casing, being careful not to damage the remaining wires.
It's okay if the buttons fall out of the case.
Flip the motherboard so it rests upside down and out of the way of the metal backing.

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手順10

Starting at the edge, use a plastic opening tool to carefully pry the front casing off of the metal backing.
Leave the plastic opening tool in place underneath the metal backing to prop it up.
Move the motherboard out of the way as needed.

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手順11

Using a second plastic opening tool, pry the adjacent side of the metal backing from the front casing/touch screen.
Pry close to the plastic tabs so you do not break them.
Leave the plastic opening tool in place underneath the metal backing to prop it up.

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手順12

Remove the first plastic opening tool and use it to pry along the second edge.
Slide the tool along the edge until it is close the next tab, and gently pry the metal up.

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