Communications
Confidential 40 COM MD CC GRM T
J. Junggebauer
Version 1.0 July 2005
Repair:
Desolder the IC and solder a new component with a hot air blower.
Put some flux on the joints and resolder them with a soldering iron.
If necessary put additional solder on the joints.
Test:
Assemble the base station and connect it to a PBX or PSTN line.
Pick up the handset and dial the extension of another phone connected to the PBX or
PSTN. Establish a connection, test the speech path and release it afterwards.
Pick up the other phone and dial the extension of the repaired phone.
Accept the call on the repaired phone.
If the line seizure in both ways works the base station is o.k.
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