== Repair ==
[[File:Leitsilber L100.jpg|x100px|left]]
[[File:Leitsilber 3g.jpg|x100px|right]]
Broken wires are most often causing problems on single-foil keyboards (as found in CPC 664, and 2nd generation CPC 464 keyboards). There is no chance to repair broken wires on the membrane by soldering (either the wire vaporizes, or the foil melts). However, one can '''repaint''' broken wires using conductive silver, which is sold as:
* English: conductive silver (or conductive paint)
* German: Leitsilber(or Silber Leitlack)
* French: vernis conducteur / résine à l'argent / colle conductrice
* Spanish: ?