crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2918746:0crwdne2918746:0

crwdns2944351:0crwdnd2944351:0ATT CL4940 Motherboard Replacementcrwdnd2944351:0crwdne2944351:0

crwdns2933797:0Noah Nicoletticrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Noah Nicoletti

crwdns2933769:0crwdne2933769:0
crwdns2933771:0crwdne2933771:0
crwdns2933801:0crwdne2933801:0
Introduction
Special requirements: soldering and desoldering instruments
Replacing the motherboard on your ATT CL4940 telephone will involve the following:
Special tools:
* Soldering and de-soldering instruments
* Screw driver for 4mm, 5mm, and 10mm screws
Overview:
* Unplug your device before beginning disassembly.
* Unscrew the exterior screws
* Remove the cover
* Unscrew the motherboard screws
* Detach the motherboard with the de-soldering tool and replacementreplace using the soldering tool
* Detach the motherboard and replacement
* Reassembling
* Detach the motherboard with the de-soldering tool and replace using the soldering tool
* Reassemble