1. From the Utility menu, press
Calibration>Vertical Calibration to start vertical
calibration.
2. A prompt will appear asking you to connect the
CAL output to CH1.
3. Connect the Vertical Calibration cable, GCL-
001, to the input in the restricted panel* on the
interface panel and to CH1.
*You may need to use a Philips head
screwdriver to remove the panel.