Flicker - NEC VT440 Service Manual

4-3. Flicker

<Floor/Ceiling>
This function is used for the adjustment of flicker.
The data are sustained for Floor and Ceiling, respectively.
The present data of the PJ are acquired and displayed on the screen.
The data acquired firstly (at the time of starting of the adjusting software) are stored as the initial value and
displayed on the left of the arrow mark. The present value is displayed on the right of the arrow.
When writing of the ADJ data is conducted with [Data], however, the written data are regarded as the initial
value.
Select the method of projection for Floor/Ceiling adjustment.
The scroll bar on the selected side becomes adjustable.
Display the Test Pattern, and make adjustments with the scroll bar so that the flicker in the center part
becomes minimum for R/G/B, respectively.
Adjusting range: 00H - FFH
<Test Pattern>
This function is used when an internal Test Pattern is displayed for flicker adjustment.
When the [ON] button is clicked, a horizontal line signal of R is displayed on the projected screen.
If this [ON] button is continuously clicked since then, a changeover action takes place in the toggle mode in
the order of horizontal line signal of G-> horizontal line signal of B-> and horizontal line signal of R.
When the [CLS] button is clicked, the Test Pattern is cleared (input changeover to RGB1).
<Data>
When the [Set] button is clicked, the flicker value adjusted with the scroll bar is written in the Flash ROM.
When the [Reset] button is clicked, the adjusted flicker value is restored to the initial value (at the time of
starting of the adjusting software) and written in the Flash ROM.
Note 1: The data adjusted with the scroll bar are the temporary ones. They are not sustained in the PJ without
taking any measures. Execute [Set] and write the data in the Flash ROM.
METHOD OF ADJUSTMENTS
5-11