Teledyne LeCroy WaveJet 300A Series Quick Reference Guide - Manual (Page 7)

7
Zoom Your Signals
Press the front panel Quick Zoom
button to zoom all displayed
traces including Math.
Original display before pressing the
Quick Zoom button. After Quick Zoom is pressed the zoom
traces are displayed in a separate grid.
Use the delay and Time/Division
control to change the zoom factor
and portion of the waveform you
are zooming.