Question about Ethernet Port

Fumbling in the dark, I knocked by 12" G4 off the table. It must have landed where the ethernet cable connects to the port. I'm now unable to access the network using ethernet. Everything else works okay -- I can use wifi, and all the applications work normally. The reason I use ethernet is because once in a while my wifi connection drops (due to a baby monitor nearby?).
Do you think this would be a simple fix, or should I bring it in to a shop? My husband is pretty handy with computers and has torn his old G3 apart several times.

Nancy: This is probably going to require replacing the logic board, to which the Ethernet port is (was) soldered. It's a difficult job, and the part will cost $200-300 used.
http://www.ifixit.com/Guide/Repair/Installing-PowerBook-G4-Aluminum-12-Inch-1-1- 5-GHz-Logic-Board/553/1

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