Abstract: A universal testing device for testing a plurality of electronic modules having different configurations and operating parameters. In one embodiment of the invention, a universal mounting board for testing a plurality of different modules with different pin configurations and operating parameters is a printed circuit board with a plurality of connectors and a plurality of conductive contact sites. The connectors of the universal mounting board are arranged to be operatively coupled with a plurality of contacts of a separate control fixture. In general, the contacts of the control fixture are operatively coupled to a supply voltage, a ground plane, and a signal controller. The control fixture also has a sufficient number of contacts to provide the necessary number of inputs/outputs of supply voltage, ground connections, and signals for virtually any type of electronic module.