Hitachi CP-X275 user manual Initial SET Signals

INITIAL SET SIGNALS

The following signals are used for the initial settings.

The signal timing of some computer models may be different. In such case, refer to adjust the V.POSIT and H.POSIT of the menu.

Back porch b				Front porch d
DATAHSYNC
		Display interval c
	Sync a
Computer /			Horizontal signal timing (µs)
Signal
			a	b		c	d
TEXT			2.0	3.0	20.3		1.0
VGA (60Hz)			3.8	1.9	25.4		0.6
Mac 13"mode			2.1	3.2	21.2		2.1
VGA (72Hz)			1.3	3.8	20.3		1.0
VGA (75Hz)			2.0	3.8	20.3		0.5
VGA (85Hz)			1.6	2.2	17.8		1.6
SVGA (56Hz)			2.0	3.6	22.2		0.7
SVGA (60Hz)			3.2	2.2	20.0		1.0
SVGA (72Hz)			2.4	1.3	16.0		1.1
SVGA (75Hz)			1.6	3.2	16.2		0.3
SVGA (85Hz)			1.1	2.7	14.2		0.6
Mac 16"mode			1.1	3.9	14.5		0.6
XGA (60Hz)			2.1	2.5	15.8		0.4
XGA (70Hz)			1.8	1.9	13.7		0.3
XGA (75Hz)			1.2	2.2	13.0		0.2
XGA (85Hz)			1.0	2.2	10.8		0.5
1152⋅864 (75Hz)			1.2	2.4	10.7		0.6
1280⋅960 (60Hz)			1.0	2.9	11.9		0.9
1280⋅1024 (60Hz)			1.0	2.3	11.9		0.4
1280⋅1024 (75Hz)			1.1	1.8	9.5		0.2
1280⋅1024 (85Hz)			1.0	1.4	8.1		0.4
1600⋅1200 (60Hz)			1.2	1.9	9.9		0.4

Back porch bFront porch d

DATAVSYNC	Display interval c
	Sync a

Computer /	Vertical signal timimg (lines)
Signal
	a	b	c	d
TEXT	3	42	400	1
VGA (60Hz)	2	33	480	10
Mac 13"mode	3	39	480	3
VGA (72Hz)	3	28	480	9
VGA (75Hz)	3	16	480	1
VGA (85Hz)	3	25	480	1
SVGA (56Hz)	2	22	600	1
SVGA (60Hz)	4	23	600	1
SVGA (72Hz)	6	23	600	37
SVGA (75Hz)	3	21	600	1
SVGA (85Hz)	3	27	600	1
Mac 16"mode	3	39	624	1
XGA (60Hz)	6	29	768	3
XGA (70Hz)	6	29	768	3
XGA (75Hz)	3	28	768	1
XGA (85Hz)	3	36	768	1
1152⋅864 (75Hz)	3	32	864	1
1280⋅960 (60Hz)	3	36	960	1
1280⋅1024 (60Hz)	3	38	1024	1
1280⋅1024 (75Hz)	3	37	1024	2
1280⋅1024 (85Hz)	3	44	1024	1
1600⋅1200 (60Hz)	3	46	1200	1

TECHNICAL

3