AccuPel HDG-4 Manuel de l'utilisateur - Page 6

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HDG-4000 ANALOG/DIGITAL VIDEO CALIBRATION GENERATOR

Pattern Selection

There are three methods of selecting patterns – sequential group and pattern selection, direct selection by

group and pattern # (number), and user-defined pattern lists.

Sequential Group & Pattern Selection

Press the top of the Group rocker button to move forward to the

next pattern Group. Press the bottom of the Group rocker button

to move backward to the previous pattern group.

Press the top of the Pattern rocker button to move to the next

pattern in the current pattern group. Press the bottom of the

Pattern rocker button to move to the previous pattern in the

current pattern group.

Direct Group & Pattern Selection

Color75, Color100, Special, PLUGE, Gray Scale, Gray Field -

Directly select one of the 6 major pattern groups.

ALT Gray Scale – Press this button combination to select or

alternate between 0%-10% Low-GS (Gray Scale) patterns and

100%-109% High-GS patterns. Press the Gray Scale button only

to return to the default 0%-100% Gray Scale patterns. The Gray

Scale LED will blink slowly when the Low-GS or High-GS mode

is enabled.

Note: The background of the High-GS windows is 100% luma to

examine a display's ability to differentiate levels near 100%.

Note: 100%-109% patterns are not available for digital RGB-PC

signals because the maximum signal amplitude is 100% (digital

255) for RGB PC signals.

Press the Pat # button followed by a number button (0-10) to

directly select a pattern in the current pattern group. The active

Group LED will flash while waiting for the number button to be

pressed. Press any other button to cancel the Pat # entry

process.

This function is primarily useful to quickly select a specific

grayscale window value in the Gray Scale group. Pattern #1

selects the 10 IRE window, pattern #2 selects the 20 IRE

window, ... pattern #10 selects the 100 IRE window. When the

1%-10% Grayscale pattern group is enabled, pattern #1 selects

the 1 IRE window, pattern #2 selects the 2 IRE window, etc. The

Pat # table on the next page shows the pattern #'s for all groups.

HDG-4 USER MANUAL