Product Manual

5 Keyboard(optional)

The font and text size are fixed and cannot be changed.

The basic operation of the text overlay unit is straight forward. A flashing underscore cursor

indicates the current screen position. This cursor can be moved the screen by the

keyboard cursor keys. The cursor will wrap around the screen left and right, top and bottom.

If no key is pressed then the cursor will disappear after approximately ten seconds. The

video text overlay unit uses the standard US keyboard mapping.

Standard US keyboard mapping used by the video text overlay unit. By default all US units

are supplied with this.

The alphanumeric characters in the QWERTY section of the keyboard and the keys of the

numeric keypad can be typed directly to the screen as would normally be expected. Each

alphabetic character key is normally lowercase. Uppercase characters can be typed by

holding down the shift key or pressing the CAPS LOCK key. The keyboard’s LED indicators

will be lit by the unit. To exit CAPS LOCK mode press the key again.

To remove a character from the screen use the backspace key and delete key. This will

replace the character immediately to the left of the current cursor position with a blank

space and move the cursor to that position. The Delete key has no function. The Home and

End keys move the cursor position to the left and right of the current line on the screen. The

Return key moves the cursor to the beginning of the next line.

The video text overlay unit operates in two modes. In the first mode the text is overlaid over

the video input signal. When the video signal is removed the unit automatically switches to

generating its own internal dark grey background video signal and will switch back to the

external video when this is reconnected. In the second mode the unit generates its own

video signal internally, but ignores the external video signal. All keyboard commands

operate in the same way in both modes. To switch between modes use the F3 key as

shown in the command table below. Each page can have this mode set independently.

Esc

Clear the cursor current settings

back to the first line and the first position

the cursor from any page back to the first line and the first position

Select text over internal video

Select text over external video signal