User Guide Rev. E User Manual

The audio output level settings for all audio signal types are retained after the VTG is

powered off. The default setting is -28 dBu for polarity and -10 dBu for all other signal

types.

NOTE: If the Level buttons are held down for more than one second, the VTG will

automatically increment the level adjustment in the direction indicated by

the button.

• Frequency (audio frequency adjustment) — When the audio signal type is either

a sine or square wave (see audio signal type, above), the audio frequency can be

adjusted from 20 Hz to 20 kHz (sine) or 20 Hz to 5 kHz (square). Press the

 button to

increase the frequency and the  button to decrease the frequency. The adjustment is

in 1/3 octave steps (see Setting the audio frequency).

Menu, Next and Power buttons (bottom center):

• Menu Button (menu selection) — Press the Menu button to advance through the

four main menus (see the Menus, Conﬁguration, and Adjustments).

• Next Button — Press the Next button to step through the submenus. (see the Menus,

Conﬁguration, and Adjustments).

• Power Button — Power up or power down the VTG 300 by holding down the Power

button for one second.

NOTE: If the Power button is held down for more than three seconds, the VTG will

automatically turn off. This feature will prevent the VTG from being left on

unintentionally should the power button be unknowingly pressed.

Video buttons (right side):

• Test Patterns Button (video test patterns) — Press this button to select from among

13 different test patterns in six categories (see Selecting a Video Test Pattern), as

indicated by green LEDs to the left of each category:

• crosshatch (X-hatch) • grayscale

• H pattern • alternating pixels/multiburst (Alt./Multi)

• color bars (Col. Bars) • white eld (Wht. Field)

• Range Button (video output range) — Select the video output signal range, as

indicated by green LEDs to the left: computer scan rates (PC), video scan rates (Video),

HDTV scan rates (HDTV), or 16:9 HR scan rates.

• Rate Button (video output rate adjustment) — Press the  button or button to

vary the scan rate for a selected output range.

• Select (video output rate) — Select and activate the desired output rate for a given

range by pressing this button.

VTG 300/300R • Operation 3