computer components

... comparisons without supplying power to the board. Additionally, there is an OSCILLOSCOPE feature. 1. Boards are compared by touching the probes to the same points on both boards. If the VI graphs are the same, it indicates that the touched points are intact; if they differ, it indicates a fault. 2. Different points of the intact board can be saved in memory. 3. Without an intact board or recorded data, faulty components can be identified by examining the VI graph. The features of 'Equivalent circuit diagram' and 'simultaneous measurement of all component values' are unique in the world.