Acer AL1731, Service Manual

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12
Supported Timing
TIMING FH(KH
Z)
SYNC TOTAL ACTIVE SYNC FRONT BACK PIXEL
FV(HZ) POLARITY (DOT/LINE) (DOT/LINE) WIDTH PORCH PORCH FOREQ.(MHZ)
(DOT/LINE) (DOT/LINE) (DOT/LINE)
640x480 31.469 – 800 640 96 16 48 25.175
VGA-480 59.94 – 525 480 2 10 33
640x480 37.861 – 832 640 40 16 120 31.5
VESA-480-72Hz 72.809 – 520 480 3 1 20
640x480 37.5 – 840 640 64 16 120 31.5
VESA-480-75Hz 75 – 500 480 3 1 16
720x400 31.469 – 900 720 108 18 54 28.322
VGA-400-TEXT 70.087 + 449 400 2 12 35
800x600 37.879 + 1056 800 128 40 88 40
VESA-600-60Hz 60.317 + 628 600 4 1 23
800x600 48.077 + 1040 800 120 56 64 50
VESA-600-72Hz 72.188 + 666 600 6 37 23
800x600 46.875 + 1056 800 80 16 160 49.5
VESA-600-75Hz 75 + 625 600 3 1 21
1024x768 48.363 – 1344 1024 136 24 160 65
XGA 60.004 – 806 768 6 3 29
1024x768 56.476 – 1328 1024 136 24 144 75
VESA-768-70Hz 70.069 – 806 768 6 3 29
1024x768 60.023 + 1312 1024 96 16 176 78.75
VESA-768-75Hz 75.029 + 800 768 3 1 28
1024x1024 64 + 1688 1280 112 48 248 108
VESA-1024-60Hz 60 + 1066 1024 3 1 38
1280x1024 80 + 1688 1280 144 16 248 135
VESA-1024-75Hz 75 + 1066 1024 3 1 38
If the input timing is not a supported timing listed above but within the supported frequency
range (Horizontal: 80KHz,Vertical: 75Hz), this monitor will select a closest mode instead. But
the display quality may not be optimized.
If the input timing over the supported frequency range, a message “Input Signal Out of Range”
will be shown.
2.4.4 Support Modes
There will be 12 total support modes to accommodate the above mode and other video
modes within the frequency range of the monitor.
Analog R, G, B. MAX supports range 1280x1024 75Hz.
Digital TMDS MAX supports range 1280x1024 60Hz.