| abstract |
An expert system directed toward troubleshooting of electronic circuitry provides a graphic presentation of the circuitry involved. The expert system comprises processor means (10), memory means (12) accessible by said processor means and display means (14) operated by said processor means. When the expert system presents a query to the user, parts or portions of the circuitry, to which the query is directed, are graphically identified in the display means (14). For example, probe icons are graphically presented at circuit points between which measurements are to be made in the corresponding real-world apparatus. After the user makes the required measurement, he can answer the query and receive troubleshooting advice which may include a graphic demonstration of the repair or component replacement that would correct the problem. |