1. Basic operations

1-3-8. Masking the key signals

These steps are taken to mask the key signals using the mask signal of thekbox pattern.

1 Press the button to light its indicator, and display the Key menu.

2Use [F1] to display the Mask sub menu.

3Use [F2], and select the masking method using the Mask item.

Off

The key signals are not masked.

Manual

The area that is set using the Mask Adjust

 

sub menu is masked.

4:3

The signals are masked to the 4:3 aspect

 

ratio.

4Use [F3] to set whether to invert the mask signal using the Invert item.

On

The mask signal is inverted.

Off

The mask signal is not inverted.

5Use [F1] to display the Mask Adjust sub menu.

6Use [F2] to [F5] to set the area to be masked.

Operation/

Description of

Setting range/

Parameter

setting

Initial value

F2/

Key left position

−50.00 to 50.00/

Left

−25.00

 

F3/

Key top position

−50.00 to 50.00/

Top

25.00

 

F4/

Key bottom position

−50.00 to 50.00/

Bottom

−25.00

 

F5/

Key right position

−50.00 to 50.00/

Right

25.00

 

The Left setting cannot exceed the Right setting (and vice versa) and, similarly, the Top setting cannot exceed the Bottom setting (and vice versa).

<Key mask setting> (figure shows the default values)

Video signal range

Area where the key signal is effective

Area masked

50

TOP (25)

0 BOTTOM (-25)

-50

-50 (-25)

0

(25)

50

LEFT

 

RIGHT

 

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