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ATT CL2940 Buttons and/or Keypad Replacement

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This guide delivers the complete steps to replace missing buttons and/or the keypad for the ATT CL2940 black corded speakerphone. The tools are listed and required to successfully complete this project.

This project is necessary for individuals who need to replace the buttons or keypads for this device. It can save you money and the hassle of switching to a new device.

If you need more information on how to troubleshoot this device, please follow this link: ATT CL2940 Troubleshooting. It has several troubleshooting instructions that will help you evaluate the technical needs of your device.

Warnings to adhere to when completing this project:

When setting the back panel down, be careful to not rip any of the wires off of the internal components.

Keep the screws for the upper and lower level motherboard separated.

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  1. ATT CL2940 Buttons and/or Keypad Replacement, Back Panel: crwdns2935265:01crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 ATT CL2940 Buttons and/or Keypad Replacement, Back Panel: crwdns2935265:01crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 ATT CL2940 Buttons and/or Keypad Replacement, Back Panel: crwdns2935265:01crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Remove five 9.5 mm Phillips #1 screws from the back panel of the phone.

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    • Slide the metal spudger into the crack and continue around to the front panel of the phone.

    • Be careful not to break the clips that hold the back panel to the front panel.

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    • When setting the back panel down, be careful to not rip any of the wires off of the internal components.

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  5. ATT CL2940 Buttons and/or Keypad Replacement, Buttons and/or Keypad: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 ATT CL2940 Buttons and/or Keypad Replacement, Buttons and/or Keypad: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Unscrew five 5.6 mm screws on top level, yellow motherboard.

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    • Lift the top level Motherboard in order to get to the lower level Motherboard.

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    • Unscrew the 5.6 mm screw on the clip behind the Screen as shown.

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  8. ATT CL2940 Buttons and/or Keypad Replacement: crwdns2935265:07crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 ATT CL2940 Buttons and/or Keypad Replacement: crwdns2935265:07crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Unscrew five 5.6 mm screws on the lower level Motherboard.

    • Keep the screws for the upper and lower level motherboard separated.

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    • Lift the lower level Motherboard upward.

    • Remove the silicon pad above the buttons.

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    • Push the Button Panel upward and pull it out.

    • Replace the entire Button Panel or a single defective button.

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

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Charles Messmore

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IUPUI, Team 1-1, Harley Spring 2016 crwdns2935289:0IUPUI, Team 1-1, Harley Spring 2016crwdne2935289:0

IUPUI-HARLEY-S16S1G1

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Great explanation! Where would you recommend buying replacement buttons for the phone? Thanks

Sean Richardson - crwdns2934203:0crwdne2934203:0

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