That manual is pretty useless isn’t it! It was a good job they put that example in there...
Assuming you are not seeing any /SEL F activity as normal, then setting a falling edge trigger on /SEL F this should trigger (when the oscilloscope is set to single trigger) on the first /SEL F event after a RESET (if one is going to occur).
Set the oscilloscope to single trigger and RESET the PET.
Once the trigger has occurred, it will capture the signals on the two channels for one ‘sweep’. You will have to adjust the timebase to get a number of pulses onto the display (assuming you are going to get any of course).
If the oscilloscope triggers, you have probably got at least one pulse.
Dave
