Re: Zx81
Ive repaired connections to ICs where the damaged pad is on the top by wrapping a very fine wire (one strand from a multistrand wire) around the pin on the socket, carefully soldering the wire to the pin, then fitting the socket and soldering the 'tail' of the fine wire to the track. This works even if the through-hole plating has come away. You can even connect to both sides of the board with a little care if required.
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