Abstract: A system for reducing the number of points to be tested on a printed circuit board where the printed circuit board includes a plurality of network traces each having end points and a plurality of pads provides for the identification of the end points of each network trace of the plurality of network traces. Certain ones of the plurality of network traces network located within a predetermined distance of one another are grouped to form a plurality of groups of network traces. The identified end points of the grouped network traces are connected together within each group of network traces to form a continuous trace having one pair of end points for each group of network traces. The end points are used for testing the printed circuit board.

Abstract: A system for reducing the number of points to be tested on a dual sided printed circuit board. The circuit board includes a top and a bottom surface and a plurality of network traces extending across both sides of the printed circuit board. Each network trace includes end points. The system provides for identifying the end points of a network trace extending on both sides of the printed circuit board. The mid-point along the network trace which is common to both sides of the printed circuit board is identified. Structure is provided for independently testing each side of the printed circuit board between one end point and the mid-point on the top surface of the printed circuit board and between the mid-point and the second end point on the bottom surface of the printed circuit board.

Abstract: A printed circuit board operation system includes a work station for receiving, orienting and retaining a printed circuit board to be operated upon. A product storage array is located adjacent the work station and comprises structure for storing and designating individual components to be assembled onto the printed circuit board in the work station. A visual image projection system is provided for generating a series of visual images each comprising an operational step to be performed on the printed circuit board. Each image is projected in a location and in an orientation corresponding to the correct positioning and orientation of the operation to be performed on the printed circuit board. Verbal instruction generating structure is also provided for producing a series of verbal instructions corresponding to the operational steps. The printed circuit board operation system may be utilized to direct the assembly, repair, modification or testing of printed circuit boards.