1.   It has all the original equipment, including the wiring diagram.

2.   Scientists are now trying to work out the entire wiring diagram for the switchboard.

3.   The traditional view was that the wiring diagram is predetermined, like one for a new house, by the genes in the fertilized egg.

4.   Unearthing the cause of the problem required some serious detective skills using wiring diagrams, special test equipment and time.

5.   What is the wiring diagram?

6.   Whatever the reason for electrical malfunctions, I would never attempt to begin a repair without a wiring diagram, or electrical road map.

7.   Whatever the reason for electrical malfunctions, never attempt to begin a repair without a wiring diagram.