7/21/15: How to determine the software revision on current production Cybex Cardio equipment. To view the software revision:
525 LED: Enter Diagnostics by pressing the “Display Options” (magnifying glass) key first and then “Channel Down” key simultaneously. Next press the “Quick Start” key and the top screen will display the software revision.
525 E3, 625, 626, 627: Enter Diagnostics by pressing the “Display Options” (magnifying glass) key first and then “Channel Down” key simultaneously. Next press the “Quick Start” key and the display will show “Test” with the controller version on the lower left and display version on the lower right.
770, 771, 772, 790: Access the Toolbox by holding the "Cybex" or "Language" logo for 6 seconds. When prompted for the password, press (DELETE), 7, 7, 0, (ENTER). The SW revision will be located in the lower right hand corner of the Toolbox window.