Acer AL1922, Service Manual

Page: 13 / 70

12
Supported Timing
VESA MODES
Horizontal Vertical
Mode Resolution
Nominal
Frequency
+/- 0.5kHz
Sync
Polarity
Nominal
Freq.
+/- 1 Hz
Sync
Polarity
Nominal
Pixel
Clock
(MHz)
640x480@60Hz 31.469 N 59.940 N 25.175
640x480@72Hz 37.861 N 72.809 N 31.500
VGA
640x480@75Hz 37.500 N 75.00 N 31.500
800x600@56Hz 35.156 N/P 56.250 N/P 36.000
800x600@60Hz 37.879
P 60.317 P 40.000
800x600@72Hz 48.077 P 72.188 P 50.000
SVGA
800x600@75Hz 46.875 P 75.000 P 49.500
1024x768@60Hz 48.363 N 60.004 N 65.000
1024x768@70Hz 56.476 N 70.069 N 75.000
XGA
1024x768@75Hz 60.023 P 75.029 P 78.750
1152x864@75Hz 67.5khz P 75 P 108.000
1280x1024@60Hz 63.981 P 60.020 P 108.000
SXGA
1280x1024@75Hz 79.976 P 75.025 P 135.000
IBM MODES
Horizontal Vertical
DOS 720x400@70Hz 31.469 N 70.087 P 28.322
DOS 640x350@70Hz 31.469 P 70.087 N 25.175
XGA 1024x768@72Hz 57.515 P 72.1 P 75.000
MAC MODES
VGA 640x480@67Hz 35.000 N 66.667 N 30.240
SVGA
832x624@75Hz 49.725 N 74.551 N 57.2832
1024x768@60Hz 48.780 N 60.001 N 64.000 XGA
1024x768@75Hz 60.241 N 74.927 N 80.000
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Support Modes
There will be 20 total support modes to accommodate the above mode and other video
modes within the frequency range of the monitor.
85Hz refresh rate Support
Monitor should display 85Hz refresh rate mode as emergency mode.
Monitor should display “ Out of Range” warning menu at this mode.