Samsung 920NW Service Manual - Page 61

14 Reference Infomation 14-3 Timing Chart - This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. Table 1 Timing Chart No Name Timing ID 1 IBM 640*350/70Hz 640*350/70Hz 2 IBM 720*400/70Hz 720*400/70Hz 3 IBM 640*480/60Hz 640*480/60Hz 4 MAC 640*480/67Hz 640*480/67Hz 5 VESA 640*480/72Hz 640*480/72Hz 6 VESA 640*480/75Hz 640*480/75Hz 7 VESA 800*600/56Hz 800*600/56Hz 8 VESA 800*600/60Hz 800*600/60Hz 9 VESA 800*600/72Hz 800*600/72Hz 10 VESA 800*600/75Hz 800*600/75Hz 11 MAC 832*624/75Hz 832*624/75Hz 12 VESA 1024*768/60Hz 1024*768/60Hz 13 VESA 1024*768/70Hz 1024*768/70Hz 14 VESA 1024*768/75Hz 1024*768/75Hz 15 VESA 1152*864/75Hz 1152*864/75Hz 16 MAC 1152*870/75Hz 1152*870/75Hz 17 VESA 1280*1024/60Hz 1280*1024/60Hz 18 VESA 1280*1024/75Hz 1280*1024/75Hz dot_clk (MHz) 25.175 28.322 25.175 30.240 31.500 31.500 36.000 40.000 50.000 49.500 57.284 65.000 75.000 78.750 108.000 100.000 108.000 135.000 h_freq (kHz) 31.469 31.469 31.469 35.000 37.861 37.500 35.156 37.879 48.077 46.875 49.726 48.363 56.476 60.023 67.500 68.681 63.981 79.976 v_freq (Hz) 70 70 60 66.7 72 75 56 60 72 75 75 60 70 75 75 75 60 75 Separate Sync H/V Composite Sync Video C D E Sync B A A : Line time total C : Back porch E : Front porch Video Q R S Sync P O Sync-on-Green B : Horizontal sync width D : Active time O : Frame time total Q : Back porch S : Front porch P : Vertical sync width R : Active time 14-4