PCB=the printed circuit board. Make sure you connect the short piece of wire you solder on from the the pin of the clock to the place where the metal ring once connected. Don't overheat, because the pin is embedded in the plastic frame of the clock.

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86 560SL
With homebrew first gear start!
85 380SL
Daily Driver Project

http://juliepalooza.8m.com/sl/mercedes.htm