Mitsubishi Electronics XD20A user manual Timing Chart

A d j u s t i n g t h e p r o j e c t e d i m a g e f r o m t h e c o m p u t e r

The unit selects the most suitable resolutions as shown in the “Timing Chart” below according to the incoming signals from the RGB/YCbCr connector. However, you may need manual adjustment depending on the computer. If you have any vertical banding, noise, dot interference, or crosstalk on the projected picture, adjust the clock frequency with “PICTURE ADJ” then the clock phase with “FINE PICTURE” (see page 24). You can also adjust the horizontal and vertical position of the image (see page 24).

When adjusting manually, you can choose to project the image at the original size of the incoming signal resolution (see page 27). (Normally, the image is enlarged or reduced to the most suitable size automatically.)

Timing Chart

		Resolution			H Sync. (kHz)	V Sync. (Hz)
	IBM PC/AT compatible machine	640 ⋅		350	31.5	70.1
		640	⋅	350	37.9	85.1
		720	⋅	350	31.5	70.0
		640	⋅	400	31.5	70.1
		640	⋅	400	37.9	85.1
		720	⋅	400	31.5	70.0
		720	⋅	400	37.9	85.0
		640	⋅	480	31.5	60.0
		640	⋅	480	37.9	72.8
		640	⋅	480	37.5	75.0
		640	⋅	480	43.3	85.0
		800	⋅	600	35.2	56.3
		800	⋅	600	37.9	60.3
		800	⋅	600	46.9	75.0
		800	⋅	600	48.1	72.2
		800	⋅	600	53.7	85.1
		1024	⋅	768	48.4	60.0
		1024	⋅	768	56.5	70.1
		1024	⋅	768	58.1	72.0
		1024	⋅	768	60.0	75.0
		1024	⋅	768	68.7	85.0
		1280	⋅	1024	64.0	60.0
		1280	⋅	1024	80.0	75.0
		1280	⋅	1024	91.1	85.0
	Apple Macintosh	640 ⋅		480	35.0	66.7
		832	⋅	624	49.7	74.5
		1024	⋅	768	60.2	74.9
		1152	⋅	870	68.7	75.6
		1280	⋅	1024	81.1	76.1
	Sun	1152 ⋅		900	61.8	66.0
		1280	⋅	1024	74.9	69.9
		1280	⋅	1024	81.1	76.1
	SGI	1024 ⋅		768	49.7	60.4
		1280	⋅	1024	63.9	60.0
		1152	⋅	900	71.7	76.1
	HP	1280 ⋅		1024	78.1	72.0
The resolution of the unit is 1024 ⋅ 768. Other resolution images (e.g. 1280 ⋅ 1024) are compressed into 1024 ⋅						768. In such a case, projected letters
and lines might appear unevenly.

E – 23