crwdns2915892:0crwdne2915892:0
A brief teardown of a basic AT&T landline phone.
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This is an AT&T landline phone handset from my Grandfather. I kept it sitting around for a while before I finally decided to take it apart to see what was inside.
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To begin disassembly, pull off the battery cover with your hands. Then, locate the battery connector and remove it by gently pulling on the cable.
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Next, use a Philips screwdriver to remove the two screws from the handset.
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Be careful not to lose these two screws! Stepping on one will hurt!
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To open the handset, use a flathead screwdriver to pry open the clips holding the handset together.
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After all of the clips have been released, open the handset by carefully pulling it apart.
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After the case has been opened, you can now see the PCB and the speaker. ( If you already haven’t noticed, the microcontroller is under an RF shield to prevent from interference.)
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To remove the PCB, use a Philips screwdriver to remove the two screws securing it. Then you can lift up the PCB and separate it from the plastic frame.
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Before, I removed the PCB, I decided to remove the metal shield to see the microprocessor SoC. It is from DSP group.
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Also under the metal shield are some random RF components and inductors.
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Now you can finally see the other side of the PCB in all its glory, with no important components whatsoever, except for a lone microphone and the awful LCD screen.
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Here’s the phone base station.
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I was too lazy to make a teardown on this, so I just took it apart and took a picture of the PCB inside.
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Anyways, that’s the end of the teardown. Thanks for viewing if you did.
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