Polaroid 215EPolaview manual Factory preset timing

Getting started

Factory preset timing

				Preset timing
	IBM 640x350 at 70 Hz		IBM 640x400 at 70 HZ		IBM 640x480 at 60 Hz
Dot Clock		25.1745 Mhz		25.1745 Mhz		25.1745 Mhz
Horizontal frequency		31.4681 Khz		31.4681 Khz		31.4681 Khz
A-Period	31.778 µs (800 dots)		31.778 µs (800 dots)		31.778 µs (800 dots)
B-Blanking	6.356	µs (160 dots)	6.356	µs (160 dots)	6.356	µs (160 dots)
C-Sync Width	3.815	µs (96 dots)	3.815	µs (96 dots)	3.815	µs (96 dots)
D-Back Porch	1.907	µs (48 dots)	1.907	µs (48 dots)	1.907	µs (48 dots)
E-Active Time	25.423 µs (640 dots)		25.423 µs (640 dots)		25.423 µs (640 dots)
F-Front Porch	0.636	µs (16 dots)	0.636	µs (16 dots)	0.636	µs (16 dots)
Vertical frequency		70.0849 Hz		70.0849 Hz		59.939 Hz
A-Period	14.268 ms (449 lines)		14.268 ms (449 lines)		16.684 ms (525 lines)
B-Blanking	3.146 ms (99 lines)		1.5557 ms (49 lines)		1.430 ms (45 lines)
C-Sync Width	0.064 ms (2 lines)		0.064 ms (2 lines)		0.064 ms (2 lines)
D-Back Porch	1.907 ms (60 lines)		1.113 ms (35 lines)		1.049 ms (33 lines)
E-Active Time	11.122 ms (350 lines)		12.711 ms (400 lines)		15.254 ms (480 lines)
F-Front Porch	1.176 ms (37 lines)		0.381 ms (12 lines)		0.318 ms (10 lines)
Sync Polarity (H/V)	Positive/Negative		Negative/Positive		Negative/Negative
	Reservation timing			Preset timing
	MAC LC 640x480			MAC II 640x480	VESA 640x350 at 85 Hz
Dot Clock		31.334 MHz		30.2410 MHz		31.5 MHz
Horizontal frequency		34.97 KHz		35.0012 KHz		37.861 KHz
A-Period	28.598 µs (896 dots)		28.570 µs (894 dots)		26.413 µs (832 dots)
B-Blanking	8.171	µs (256 dots)	7.407	µs (224 dots)	6.095	µs (192 dots)
C-Sync Width	2.043	µs (64 dots)	2.803	µs (63 dots)	2.032	µs (64 dots)
D-Back Porch	2.426	µs (76 dots)	3.241	µs (98 dots)	3.048	µs (96 dots)
E-Active Time	20.425 µs (640 dots)		21.163 µs (640 dots)		20.317 µs (640 dots)
F-Front Porch	3.702	µs (116 dots)	2.083	µs (63 dots)	1.016	µs (32 dots)
Vertical frequency		66.61 Hz		66.6689 Hz		85.080 Hz
A-Period	15.013 ms (525 lines)		15.000 ms (525 lines)		11.754 ms (445 lines)
B-Blanking	1.287 ms (45 lines)		1.286 ms (45 lines)		2.509 ms (95 lines)
C-Sync Width	0.086 ms (3 lines)		0.086 ms (3 lines)		0.079 ms (2 lines)
D-Back Porch	1.115 ms (39 lines)		1.114 ms (39 lines)		1.585 ms (60 lines)
E-Active Time	13.726 ms (480 lines)		13.714 ms (480 lines)		9.244 ms (350 lines)
F-Front Porch	0.886 ms (3 lines)		0.086 ms (3 lines)		0.845 ms (32 lines)
Sync Polarity (H/V)	Negative/Negative		Sync on Green or Composite		Positive/Negative

26Polaview 215E LCD Projector User’s Guide