Acer AL1722, Service Manual

Page: 13 / 59

13
Supported Timing
Modes Resolution
Horizontal
Frequency
Vertical
Frequency
640x480 31.469 59.940
VGA
640x480 37.500 75.000
800x600 37.879 60.317
SVGA
800x600 46.875 75.000
1024x768 48.363 60.004
1024x768 56.476 70.069
XGA
1024x768 60.023 75.029
1280x1024 64.000 60.000
VESA
SXGA
1280x1024 80.000 75.000
IBM DOS 720x400 31.469 70.087
1024x768 48.780 60.001
MAC XGA
1024x768 60.241 74.927
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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.
80Hz refresh rate Support
Monitor should display 80Hz refresh rate mode as emergency mode.
Monitor should display “ Out of Range” warning menu at this mode.
Video Input Connector
PIN NO. DESCRIPTION PI N NO. DESCRIPTION
1. Red 9. +5V
2. Green 10. Logic Ground
3. Blue 11. Monitor Ground
4. Monitor Ground 12. DDC-Serial Data
5. DDC-Return 13. H-Sync
6. R-Ground 14. V-Sync
7. G-Ground 15. DDC-Serial Clock
8. B-Ground
VGA Connector layout
1 5
6
10
11 15