Polaroid SVGA 270 manual TECHNICAL continued, Initial set signals, Datahsync

TECHNICAL (continued)

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 pages 17 and 18 and 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)				Computer /	Horizontal signal timing (µs)
Signal					Signal
	a	b	c	d		a	b	c	d
VGA-1(85Hz)	2.0	3.0	20.3	1.0	SVGA(56Hz)	2.0	3.6	22.2	0.7
VGA-2(85Hz)	2.0	3.0	20.3	1.0	SVGA(60Hz)	3.2	2.2	20.0	1.0
TEXT	2.0	3.0	20.3	1.0	SVGA (72Hz)	2.4	1.3	16.0	1.1
VGA-3	3.8	1.9	25.4	0.6	SVGA (75Hz)	1.6	3.2	16.2	0.3
Mac 13"mode	2.1	3.2	21.2	2.1	SVGA (85Hz)	1.1	2.7	14.2	0.6
VGA-3(72Hz)	1.3	3.8	20.3	1.0	Mac 16"mode	1.1	3.9	14.5	0.6
VGA-3(75Hz)	2.0	3.8	20.3	0.5	XGA (60Hz)	2.1	2.5	15.8	0.4
VGA-3(85Hz)	1.6	2.2	17.8	1.6	XGA (70Hz)	1.8	1.9	13.7	0.3
					XGA (75Hz)	1.2	2.2	13.0	0.2

		Back porch b					Front porch d
	DATAVSYNC
					Display interval c
				Sync a
Computer /	Vertical signal timimg (lines)					Computer /		Vertical signal timimg (lines)
Signal						Signal
	a		b	c	d			a	b	c	d
VGA-1(85Hz)	3		60	350	32	SVGA(56Hz)		2	22	600	1
VGA-2(85Hz)	3		41	400	1	SVGA(60Hz)		4	23	600	1
TEXT	3		42	480	1	SVGA (72Hz)		6	23	600	37
VGA-3	2		33	480	10	SVGA (75Hz)		3	21	600	1
Mac 13"mode	3		39	480	3	SVGA (85Hz)		3	27	600	1
VGA-3(72Hz)	3		28	480	9	Mac 16"mode		3	39	624	1
VGA-3(75Hz)	3		16	480	1	XGA (60Hz)		6	29	768	3
VGA-3(85Hz)	3		25	480	1	XGA (70Hz)		6	29	768	3
						XGA (75Hz)		3	28	768	1

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