When performing a time calibration (using DynaCal head), the comb pulses don’t appear

When performing a time calibration (using DynaCal head), the comb pulses don’t appear

Problem: Settings could be incorrect
Solution:

    1. Check the FSB – Should be set to DynaCal (box checked).
    2. Verify that the Sweep Voltages is ON.
    3. Verify that the cathode is Normally ON.