41 General Comments

This subsection provides a technical description of the Dominos electroniccircuitry. Scction IX of this manual contains schematic diagrams, assembly drawings, and parts lists referred to in the following subparagraphs of this section. On the Dominos PCB schematic diagram, drawing number 007305, the symbol P (appearing at various inputs of the integrated circuits) indicates a connection to -rSVDC through one of the pull-up resisters R1, R2, R4, R33, or R38. For easy reference, the Dominos PCB is...

82 Test Equipment

Electronic troubleshooting of a video game essentially consists of checking for the presence of various signals and of examining their condition. A signal can be thought of as acting like a messenger that carries instructions from one unit or circuit to another. Many different types of signals are produced in a video game, and for this reason several unusual and perhaps unfamiliar types of test instruments are used during troubleshooting. Fach instrument has its own set of advantages and...