Acer AL2023 AL2023W Service Guide - Page 17

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