Appendix A. Supported Resolution Timing Charts - Lenovo 1723-8BX Installation And Maintenance Manual

Appendix A. Supported resolution timing charts

The following tables are the supported resolution timing charts. Although additional resolutions might work,
these are the supported signals.
Table 7. 640 x 480 timing chart
Type
Timing name 640 x 480 @ 60 Hz
Horizontal 31.469 kHz
frequency and
polarity
Vertical 59.94 Hz
frequency and
polarity
Pixel clock 25.175 MHz
Scan type Noninterlaced
Horizontal
Period 31.778 μs
Display 25.422 μs
Blanking 6.356 μs
Sync 3.813 μs
Back porch 1.907 μs
Front porch 0.636 μs
Vertical
Total 16.683 ms
Display 15.253 ms
Blanking 1.430 ms
Sync 0.064 ms
Back porch 1.049 ms
Front porch 0.318 ms
Table 8. 800 x 600 timing chart
Type
Timing name 800 x 600 @ 60 Hz
Horizontal 37.879 kHz
frequency and
polarity
Vertical 60.317 Hz
frequency and
polarity
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Standard
Negative
Negative
800 pixels
640 pixels
160 pixels
96 pixels
48 pixels
16 pixels
525 lines
480 lines
45 lines
2 lines
33 lines
10 lines
Standard
Positive
Positive
640 x 480 @ 75 Hz
37.5 kHz
75 Hz
31.5 MHz
Noninterlaced
26.667 μs
20.317 μs
6.349 μs
2.032 μs
3.810 μs
0.508 μs
13.333 ms
12.800 ms
0.533 ms
0.080 ms
0.427 ms
0.027 ms
800 x 600 @ 75 Hz
46.875 kHz
75 Hz
Negative
Negative
840 pixels
640 pixels
200 pixels
64 pixels
120 pixels
16 pixels
500 lines
480 lines
20 lines
3 lines
16 lines
1 line
Positive
Positive
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