Mitsubishi Electronics XD490U Setting up your projector, Screen size and projection distance

Setting up your projector (continued)

Screen size and projection distance

Refer to the following table to determine the screen size.

Screen size

A	(Height of the projected image)
		Hd

B

(Width of the projected image)

Center of the lens

Projected distance (L)

When the aspect ratio of the screen is 4:3

	Screen size						Projected distance (L)
4:3 Diagonal size		Height A		Width B			Min.		Max.			Hd
inch	cm	inch	cm	inch	cm	inch		m	inch	m	inch		cm
40	102	24	61	32	81	51		1.3	62	1.6	2.8		7
60	152	36	91	48	122	77		2.0	94	2.4	4.3		11
80	203	48	122	64	163	103		2.6	125	3.2	5.7		14
100	254	60	152	80	203	130		3.3	157	4.0	7.1		18
150	381	90	229	120	305	196		5.0	237	6.0	10.7		27
200	508	120	305	160	406	262		6.6	316	8.0	14.2		36
250	635	150	381	200	508	327		8.3	-	-	17.8		45
300	762	180	457	240	610	393		10.0	-	-	21.4		54

• The above figures are approximate and may be slightly different from the actual measurements.

Virtual lens shift

To adjust the positions of the projector and the screen, use VIRTUAL LENS SHIFT in the INSTALLATION menu.

1.	Display the INSTALLATION menu. (See page 22 for menu setting.)
2.	Press the ￿ or ￿ button to select VIRTUAL LENS SHIFT.			opt.	XGA60
3.	Press the ￿ or ￿ button to select ON	.
4.	Press the ENTER button.		INSTALLATION

	• The setting menus of VIRTUAL LENS SHIFT are displayed.	WALL SCREEN	BEIGE
5.	Press the ￿ or ￿ button to select SCREEN SIZE.	VIRTUAL	OFF
		LENS SHIFT
	(The screen can be reduced to the SVGA size.)
		VIRTUAL LENS SHIFT
6.	Press the ￿ or ￿ button to adjust the screen size.
		SCREEN SIZE	0
	• Every time the ￿ button is pressed, the image becomes smaller. As the
		HORIZ. POSITION	0
	image becomes smaller, the lens shift range becomes larger.
		VERT. POSITION	0
7.	Press the ￿ or ￿ button to select HORIZ. POSITION or VERT. POSITION.
8.	Press the ￿ or ￿ button to bring the center of the image to the center of the screen.

HORIZ. POSITION	Every time the ￿ button is pressed, the image moves to the left.
	Every time the ￿ button is pressed, the image moves to the right.
VERT. POSITION	Every time the ￿ button is pressed, the image moves down.
	Every time the ￿ button is pressed, the image moves up.

[Example] When projecting onto a blackboard in a classroom:

Blackboard

Actual display area

Reduced image

Adjustable in any of four directions.

Image displacement

1.Change the SCREEN SIZE to reduce the projected image.

2.A black frame appears around the image. Move the image so that the entire black frame stays on the blackboard.

3.Set WALL SCREEN from OFF to BLACK BOARD.

EN-12