Acer AL2223WD AL2223WD Service Guide - Page 17

MODE NO. RESOLUTION 25 1680 x 1050 Dot clock(MHz) 146.25 26 848 x 480 33.75 f h H-Total ( us ) 65.29 KHz 31.02 KHz 15.316 (2240 dots) 32.237 (1088 dots) H-Sync ( us ) 1.203 ( 176 dots) 3.319 (112 dots) H-B-P ( us ) 1.915 (280 dots) 3.319 (112 dots) H-Active ( us ) 11.487 (1680 dots) 25.126 (848 dots) H-F-P ( us ) 0.711 (104 dots) 0.474 (16 dots) f v V-Total (ms ) 59.954 Hz 60 Hz 16.679 (1089 lines) 16.667 (517 lines ) V-Sync ( ms ) V-B-P (ms ) V-Active ( ms ) 0.092 (6 lines) 0.258 (8 lines ) 0.459 (30 lines) 0.741 (23 lines ) 16.082 (1050 lines) 15.474 (480 lines ) V-F-P ( ms ) SYNC. H/V POLARITY SEP . SYNC 0.046 ( 3 line ) -/+ 0.193 (6 lines ) + / + Y Y A : H-Total O : V-Total B : H- Sync width P : V- Sync width C : H- Back porch Q :.V- Back porch D : H- Video width R : V- Video width E : H- Front porch S :.V- Front porch - 17 -