User Guide

LA-series Operating Manual
-20-
1. Internal/external clock key:
Used to switch internal/external modes.
- Internal mode, trigger with internal frequency signal of LA,
namely, the so-called asynchronous trigger mode or time mode.
- External mode, trigger with external frequency signal of LA,
namely, the so-called synchronous trigger mode or state mode.
* The character label of selected mode is blue.
3-1-3 Trigger control keys are described below: