Acer AL2023 AL2023W Service Guide - Page 11

Timings The product has 34 memory modes in total. 26 modes are preset and 8 modes are user definable. MODE NO. RESOLUTION Dot clock(MHz) f h H-Total ( us ) H-Sync ( us ) H-B-P ( us ) H-Active ( us ) H-F-P ( us ) f v V-Total (ms ) V-Sync ( ms ) V-B-P (ms ) V-Active ( ms ) V-F-P ( ms ) SYNC. H/V POLARITY SEP . SYNC 1 720 x 400 28.321 31.469kHz 31.78(900dots) 3.813(108dots) 1.907(54dots) 25.42(720dots) 0.636(18dots) 70Hz(70.087) 14.27(449 lines) 0.064(2 lines) 1.112(35 lines) 12.71(400 lines) 0.384(12 lines) -/+ Y 2 640 x 480 25.175 31.469kHz 31.778 (800 dots) 3.813 (96 dots) 1.907 (48 dots) 25.422 (640 dots) 0.636 (16 dots) 60Hz (59.940) 16.683 (525 lines ) 0.064 (2 lines ) 1.049 (33 lines ) 15.253 (480 lines ) 0.317 ( 10 lines) - / - Y 3 640x480 30.24 35.0kHz 28.571(864 dots) 2.116 (64 dots) 3.175 (96 dots) 21.164 (640 dots) 2.116 (64 dots) 66.7 HZ (66.667) 15.000 (525 lines ) 0.086 (3 lines ) 1.114 (39 lines ) 13.714 (480 lines ) 0.086 (3 lines ) +/+ Or -/- Y 4 640 x 480 31.5 37.861kHz 26.413 (832 dots) 1.270(40 dots) 4.064(128 dots) 20.317(640 dots) 0.762(24 dots) 72.809Hz 13.735(520 lines) 0.079(3 lines) 0.739(28 lines) 12.678(480 lines) 0.237(9 lines) -/- Y - 11 -