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METHOD OF ADJUSTMENTS
PC mode
Signal name
Definition
Dot clock frequency (MHz)
H frequency (kHz)
V frequency (Hz)
H total (µS)
(dots)
H display period (µS)
(dots)
H front porch (µS)
(dots)
H sync pulse width (µS)
(dots)
H back porch (µS)
(dots)
V total (mS)
(line)
V display period (mS)
(line)
V front porch (mS)
(line)
V sync pulse width (mS)
(line)
V back porch (mS)
(line)
H sync polarity
V sync polarity
Scan type
VGROM NO.
Signal reference origin
5-24
21
22
VESA wide
VESA wide
(NEC 3)
(NEC 4)
1280*720
1360*765
76.5
85.5
45.106
47.712
60.142
60.015
22.17
20.959
1696
1792
16.732
15.906
1280
1360
0.627
0.749
48
64
2.301
2.058
176
176
2.51
2.246
192
192
16.627
16.662
750
795
15.962
16.034
720
765
0.089
0.084
4
4
0.177
0.168
8
8
0.399
0.377
18
18
Pos.
Pos.
Pos.
Pos.
Non
Non
interlaced
interlaced
21
22
NEC TECH 8-26-97
23
24
CEREB
VESA
wide 2
768@60Hz
1024*600
1024*768
51.2
65
37.879
48.363
60.317
60.004
26.4
20.677
1352
1344
20
15.754
1024
1024
1
0.369
51
24
3.2
2.092
164
136
2.2
2.462
113
160
15.579
16.666
628
806
15.84
15.88
600
768
0.026
0.062
1
3
0.106
0.124
4
6
0.607
0.6
23
29
Neg
Neg.
Pos.
Neg.
Non
Non
interlaced
interlaced
23
24
Calculated from
VESA Monitor Timing Standard
VESA 600@60Hz
Ver 1.0 R0.6
25
VESA
768@70Hz
1024*768
75
56.476
70.069
17.707
1328
13.653
1024
0.32
24
1.813
136
1.92
144
14.272
806
13.599
768
0.053
3
0.106
6
0.513
29
Neg.
Neg.
Non
interlaced
25
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