Picture Outline Adjustment; Displaying Internal Test Pattern; Overscan Mode; Release The Lock Screws - Mitsubishi Electric VS-50XL20U Setup And Installation Manual

1.4. Picture outline adjustment

Caution
Before turning on, make sure again that the color
wheel has been unlocked (chapter 1.2.4, on page 7)
and, for VS-50XLW20U, the lamp cushion has been
detached (chapter 1.2.5, on page 8).

1.4.1. Displaying internal test pattern

Press [TEST] button twice to display the internal
crosshatch pattern for picture outline adjustment.
This pattern is a crosshatch with lines spaced at
16 pixels (horizontal) and 12 pixels (vertical).
There are also the adjustment lines for over scan
located 5th pixel inside from each side and 4th pixel
inside from top/bottom end.

1.4.2. Overscan mode

1.4.2.1. In the case of over scan
Adjust the picture outline so that 4 horizontal pixels
at each end and 3 vertical pixels at each end are
projected outside the screen edge.
With overlap setting (chapter 1.5.3.6, on page 22),
a black pixel-lacking area in fringe of the screen
becomes hard to see, even if the projection image
unexpectedly shifts in daisy-chained multi-screen.
The numbers of pixels per screen are;
Horizontal: 1,024-4-4=1,016 pixels
Vertical: 768-3-3=762 pixels
1.4.2.2. In the case of non-over scan
Adjust picture outline without projecting pixels
outside the screen.
The numbers of pixels per screen are;
Horizontal: 1,024 pixels
Vertical: 768 pixels

1.4.3. Release the lock screws

Before 6-axis adjustment, release the locks on the adjuster. Loosen the 4 locking screws by Allen
wrench (2mm) and 5 fixing screws in the adjuster by Allen wrench (4mm).
4 lock screws
VS-50XL20U, VS-67XL20U, VS-50XLW20U
Set-up and Installation Manual
16 pixels
12 pixels
th
4 pixel
th
5
8
4
14
pixel
1024
1008 8
1016 4
1024
5 fixing screws