The scope has 7 ranges (0-6) that can be selected. 6 of them make actual changes in the hardware. You can hear the relays click. So it is only for the change from the one but lowest to the lowest that they use the digital zoom.
const int8 *volt_div_texts[3][7] =
{
{ "5V/div", "2.5V/div", "1V/div", "500mV/div", "200mV/div", "100mV/div", "50mV/div" },
{ "50V/div", "25V/div", "10V/div", "5V/div", "2V/div", "1V/div", "500mV/div" },
{ "500V/div", "250V/div", "100V/div", "50V/div", "20V/div", "10V/div", "5V/div" }
};
This is the settings lookup table I implemented in my version of the 1013D code, which uses the same hardware as the 1014D, to display the settings for the different probe magnification factors. The original code works with switch statements to get this done.