Introduction

This guide will demonstrate the removal and replacement procedures for an IBM ThinkPad T42 Modem Daughter Board.

Parts

No parts required.

Unscrew the 20 Phillips screws on the underside of the T42.
  • Unscrew the 20 Phillips screws on the underside of the T42.

    • For ease of reassembly, keep your screws organized.

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Unscrew the 2 Phillips screws on both sides of the T42's rear.
  • Unscrew the 2 Phillips screws on both sides of the T42's rear.

leave these four screws alone. No need to remove them.

fredwb - Reply

Of course you need to remove them you Dingbat! They are the main anchors of the screen hinges, Doh!

wbcam -

There are tiny numbers showing the lengths of the screws. 1-2-3-4 where 1 is the shortest.

The dark red circles are not very easy to see. How about white ones?

mattikaki - Reply

Flip the laptop over and open the screen.
  • Flip the laptop over and open the screen.

    • The bezel and keyboard will be loose, be careful.

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Carefully maneuver the palm rest away from the keyboard, as both the keyboard and palm rest/trackpad will come off together. Remember, both the keyboard and trackpad have connectors to the motherboard. Disconnect these before completely removing either component.
  • Carefully maneuver the palm rest away from the keyboard, as both the keyboard and palm rest/trackpad will come off together.

    • Remember, both the keyboard and trackpad have connectors to the motherboard. Disconnect these before completely removing either component.

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Starting from the bottom right, carefully remove off the bezel. Use a spudger or flat head screwdriver if needed. Starting from the bottom right, carefully remove off the bezel. Use a spudger or flat head screwdriver if needed.
  • Starting from the bottom right, carefully remove off the bezel. Use a spudger or flat head screwdriver if needed.

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The metal bracket will now be free to move, grasp it and remove it from the device. The metal bracket will now be free to move, grasp it and remove it from the device.
  • The metal bracket will now be free to move, grasp it and remove it from the device.

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Remove the small rubber piece that is covering the T42's microphone,
  • Remove the small rubber piece that is covering the T42's microphone,

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Next, unscrew the 3 Phillips screws in red.
  • Next, unscrew the 3 Phillips screws in red.

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The cables are routed through different components for organization, carefully disconnect them, unwrap them and pull the card free.
  • The cables are routed through different components for organization, carefully disconnect them, unwrap them and pull the card free.

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Lastly, remove the bracket sitting beneath it.
  • Lastly, remove the bracket sitting beneath it.

    • The end!

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Conclusion

To reassemble your device, follow these instructions in reverse order.

One other person completed this guide.

Gerald Watanabe

Member since: 04/14/2010

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Cal Poly, Team 29-76, Johann Spring 2010 Member of Cal Poly, Team 29-76, Johann Spring 2010

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