Lenovo Thinkpad T450 Touchpad Replacement

はじめに

The touchpad (or also known as trackpad) is an essential component of a laptop and tracks the motion and position of a user’s fingers to a position on the screen. A functioning touchpad is important to the portability of a laptop, and if your touchpad is unresponsive, you may need to use an external mouse to use your device. A failing touchpad may exhibit the following symptoms:

Cursor isn’t responding to touchpad movements.
Cursor is slow to respond.
Cursor is jumping to every movement.

If your laptop is having a difficult time tracking your movements or if your trackpad is unresponsive, it may be time to replace the touchpad in your device. Follow these steps to remove and replace the touchpad in your Lenovo ThinkPad T450.

必要な工具と部品

手順1 External Battery

Lenovo Thinkpad T450 Touchpad Replacement, External Battery: 手順 1、 3の画像 1

Lenovo Thinkpad T450 Touchpad Replacement, External Battery: 手順 1、 3の画像 2

Lenovo Thinkpad T450 Touchpad Replacement, External Battery: 手順 1、 3の画像 3

Using your hands, slide the two locking tabs away from each other to release the battery.
Slide the battery up and out of the device.

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手順2 Back Cover

Lenovo Thinkpad T450 Touchpad Replacement, Back Cover: 手順 2、 1の画像 1

Using the JIS #00 screwdriver, unscrew seven screws from the back cover.
These screws are not removable and will remain in the back cover.
Use the JIS #00 screwdriver to remove the single 2.8 mm screw from the back cover.

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手順3

Lenovo Thinkpad T450 Touchpad Replacement: 手順 3、 3の画像 3

Insert a plastic opening tool into the edges of the laptop and work your way around the edges to pry off the back cover from the device.
Remove the back cover from the device.

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手順4 SSD

Lenovo Thinkpad T450 Touchpad Replacement, SSD: 手順 4、 1の画像 1

Using the JIS #00 screwdriver, remove the single 2.8 mm screw securing the SSD to the device.

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手順5

Lift the SSD up and to the left and remove it from the device.

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手順6 RAM

Lenovo Thinkpad T450 Touchpad Replacement, RAM: 手順 6、 2の画像 1

Lenovo Thinkpad T450 Touchpad Replacement, RAM: 手順 6、 2の画像 2

Lift up the black piece of tape and remove it to uncover the RAM sticks underneath.

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手順7

Using your fingers, push the two clips securing the RAM away from each other to release the RAM.
The RAM stick should pop up at a 30 degree angle.
Remove the RAM stick from the device.
Repeat this step for any additional RAM sticks.

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手順8 Fan and Heatsink Assembly

Lenovo Thinkpad T450 Touchpad Replacement, Fan and Heatsink Assembly: 手順 8、 1の画像 1

Using the JIS #00 screwdriver, unscrew the four screws securing the fan and heatsink assembly to the motherboard.
These screws are not removable and will stay on the fan and heatsink assembly.

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手順9

Disconnect the fan and heatsink assembly from the motherboard using the plastic opening tool.

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手順10

Lift up the fan and heatsink assembly and remove it from the device.
When you reassemble your device, don't forget to reapply thermal paste to the back of the heatsink and fan assembly. For proper technique and thermal paste application, please visit the How to Apply Thermal Paste guide.

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手順11 Wi-Fi Card (WLAN)

Lenovo Thinkpad T450 Touchpad Replacement, Wi-Fi Card (WLAN): 手順 11、 1の画像 1

Lift and remove the black piece of plastic to expose the Wi-Fi card.

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手順12

Using the plastic opening tool, disconnect the two cables from the Wi-Fi card.

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手順13

Using the JIS #00 screwdriver, remove the single 2.8 mm screw.
After removing the screw, the Wi-Fi card should pop up on its own.

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手順14

Lift the Wi-Fi card out of the slot and remove it from the device.

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手順15 Cables and Plastic

Lenovo Thinkpad T450 Touchpad Replacement, Cables and Plastic: 手順 15、 1の画像 1

Use the plastic opening tool to remove the black piece of tape holding the cables together.

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手順16

Use the JIS #00 screwdriver to remove the single 2.8 mm screw from the motherboard.
Remove the black plastic covering the motherboard.

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手順17 CMOS Battery

Lenovo Thinkpad T450 Touchpad Replacement, CMOS Battery: 手順 17、 3の画像 1

Lenovo Thinkpad T450 Touchpad Replacement, CMOS Battery: 手順 17、 3の画像 2

Lenovo Thinkpad T450 Touchpad Replacement, CMOS Battery: 手順 17、 3の画像 3

Using the plastic opening tool, disconnect the CMOS battery from the motherboard.

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手順18

Insert the plastic opening tool underneath the CMOS battery and pry it up and away from the motherboard.
When you reassemble your device, you may need to reapply adhesive to the back of the CMOS battery.

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手順19 Motherboard

Lenovo Thinkpad T450 Touchpad Replacement, Motherboard: 手順 19、 2の画像 1

Lenovo Thinkpad T450 Touchpad Replacement, Motherboard: 手順 19、 2の画像 2

Use the JIS #00 screwdriver to remove two 2.8 mm screws securing the display cable bracket to the motherboard.
Remove the display cable bracket from the device.

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手順20

Disconnect the daughterboard cable and the display cable using the plastic opening tool.

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手順21

Using the JIS #00 screwdriver, remove the single 5 mm screw securing the bracket to the motherboard.
Remove the metal bracket from the device.

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手順22

Disconnect the speaker cable from the motherboard using the plastic opening tool.

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手順23

Using the plastic opening tool, flip up the locking tab on the zero insertion force (ZIF) connector and disconnect the cable from the motherboard.
For more information on different types of cables and connectors, please visit the Recognizing & Disconnect Cable Connectors guide.

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手順24

Lenovo Thinkpad T450 Touchpad Replacement: 手順 24、 3の画像 3

Using the plastic opening tool, disconnect the CMOS and power cables.
The power cable is a zero insertion force (ZIF) connector. For more information on disconnecting ZIF connectors, please visit the Recognizing & Disconnecting Cable Connectors guide.

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手順25

Lenovo Thinkpad T450 Touchpad Replacement: 手順 25、 3の画像 3

Using a plastic opening tool, disconnect the smartcard reader cable from the motherboard.
Using the same plastic opening tool, flip up the locking tab and disconnect the trackpad cable from the motherboard.

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手順26

Using the JIS #00 screwdriver, remove six 2.8 mm screws securing the motherboard to the device.

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手順27

Lenovo Thinkpad T450 Touchpad Replacement: 手順 27、 3の画像 3

Carefully grab the motherboard and lift it up slightly off of the device.
Do not completely remove the motherboard from the device. There is a zero insertion force (ZIF) connector underneath the motherboard.
Disconnect the ZIF connector and remove the motherboard from the device.
For more information on zero insertion force (ZIF) connectors, please visit the Recognizing and Disconnecting Cable Connectors guide.