198 Chapter 12 Using Special Sync Output
Configuring the probe feature
This section describes how to configure the probe feature.
To enable the probe feature:
1. Deactivate the signal outputs of the generator by pressing the Outputs key. The light
on the Outputs key extinguishes.
2. Hold down the Step key, and then press and release the Outputs key. The LCD
displays a Probe feature message, and then the following screen.
3. Release the Step key.

Setting sensitivity of knobs

You can control the amount of distance traveled with each click of the Format and Image
knobs by using the ACS, DCS, and DSS keys. If neither ACS, DCS, nor DSS is selected,
then the amount of movement is increased exponentially as you move farther in a particular
direction and is reset when you change direction.
To set the sensitivity of the Format and Image knobs:
1. Press the appropriate key:
Controlling probe using generator controls
This section procedures for controlling the special sync probe through the front panel keys
and knobs.
To position the probe pulse in a specific location in the video signal:
1. Turn the Format knob to set the horizontal position of the probe pulse to the desired
pixel relative to the leading edge of the horizontal sync.
The horizontal position of the probe is simultaneously displayed in two different ways:
• The horizontal position P:nnnn is given in pixels relative to the leading edge of the
horizontal sync.
• If the leading edge of the probe is within the active portion of a line, an alternate
horizontal position X:nnnn is also displayed, indicating the number of pixels
Sensitivity Procedure
100 pixels/lines per knob click Press the ACS key. The key illuminates.
10 pixels/lines per knob click Press the DCS key. The key illuminates.
1 pixel/line per knob click Press the DSS key. The key illuminates.