ATT CL4940 Internal Microphone Replacement
Charles Moore and 3 other contributors
Last updated on Jun 15, 2022
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Introduction
Go to step 1 ↓If you are unable to hear anything during hands free calling, the internal speaker may need to be replaced. This guide will teach you how to disassemble your AT&T CL4940 corded answering system, and how to replace the speaker used for hands free calling. This is a fairly simple process, and it can be accomplished with minimal technical expertise.
What you need
Tools
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Remove the phone line and the power cord from the back of the device.
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Remove the phone cable from the side of the device.
Ask FixBot
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Remove the five 4mm X 10mm Phillips head screws from the back cover of the device.
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Starting from the bottom of the device, (using a metal spudger) separate the top (white) plastic piece from the bottom (gray) plastic piece.
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Work your way across the bottom of the device, then to each side, and finally to the top.
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The top and bottom pieces should separate, and the internals of the device will now be accessible.
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Using wire cutters, sever both the red and the black wires connected to the microphone.
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To remove the microphone from the device, gently wiggle it while pulling it apart.
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To reassemble your device, follow these instructions in reverse order.
Team
IUPUI, Team 2-2, Harley Spring 2016 Member of IUPUI, Team 2-2, Harley Spring 2016
IUPUI-HARLEY-S16S2G2
4 Members
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