| 摘要 |
PURPOSE:To locate a faulty part on a printed board and on an electric circuit diagram quickly. CONSTITUTION:Means 1, 2 and 3 for detecting faults A, B and C, respectively, on a printed board 6 are connected with a microcomputor 4 for determining the faulty part. The microcomputor 4 is connected with a 2-digit 7-segment LED 5 and mounted. The printed board 6 is printed, at one end part thereof, with alphabets A-E representative of lateral sections and, at another end part thereof, with numerals 1-4 representative of longitudinal sections at a constant interval. A faulty part on the printed board 6 is indicated as an area represented by a 2-digit code, i.e., a combination of an alphabet and a numeral. |
