Hitachi HV-D25 User Manual

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8. IRIS GATE

This menu screen allows you to make iris gate (window) settings.

1) GATE AREA <UP/DOWN>:The window can be shifted up/down.

To shift the window up, press the R button.  To shift it down, press the L button.

2) GATE AREA<LEFT/RIGHT>:The window can be shifted left/right.

To shift the window rightward, press the R button.  To shift it leftward, press the L button.

3) GATE AREA<LARGE/SMALL>:The size of the window can be adjusted.

Using the L or R button, you can select one of four window sizes.

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9. WHITE GATE

Sets the area (window) position for use as white balance control data.  Adjust the window to a white or grey

monochrome portion of the screen.  Setting operation is the same as Iris Gate.

1) GATE AREA<UP/DOWN>:The window can be shifted up/down.

To shift the window up, press the R button.  To shift it down, press the L button.

2) GATE AREA<LEFT/RIGHT>:The window can be shifted left/right.

To shift the window rightward, press the R button.  To shift it leftward, press the L button.

10

 LEVEL

This menu screen allows you to set up a black level and gain of R/B video signal.

1) R BLK: R black level setting

The allowable setting range is -128 to 127.

Pressing the R button increases a numeric value to make the R video signal black level higher.  Pressing the L
button decreases a numeric value to lower the R video signal black level.  For 0 (zero) setting, hold down both
the L and R buttons for approx. two seconds.

2) B BLK: B black level setting

The allowable setting range is -128 to 127.

Pressing the R button increases a numeric value to make the B video signal black level higher.  Pressing the L
button decreases a numeric value to lower the B video signal black level.  For 0 (zero) setting, hold down both
the L and R buttons for approx. two seconds.

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IRIS GATE<ON>

GATE AREA(UP/DOWN)
GATE AREA(LEFT/RIGHT)
GATE AREA(LARGE/SMALL)

Window

Press R button to increase
size.
Press L button to decrease