2 Product Specifications
2-2
720C/920C
Q
R
S
P
O
Video
Sync
Sync
Horizontal
Vertical
C
D
E
P
O
B
A
Video
Sync
Sync
Separate Sync
A : Line time total
B : Horizontal sync width
O : Frame time total
P : Vertical sync width
C : Back porch
D : Active time
Q : Back porch
R : Active time
E : Front porch
S : Front porch
B
Green
Vertical
P
Q
R
S
O
Horizontal
Sync-on-Green
800/85 Hz
800 x 600
1600/75 Hz
1600 x 1200
1024/75 Hz
1024 x 768
640/85Hz
640 x 480
VGA2/70Hz
720 x 400
Table 2-1. Timing Chart
fH (kHz)
A µsec
B µsec
C µsec
D µsec
E µsec
fV (Hz)
O msec
P msec
Q msec
R msec
S msec
Clock
Freq.
(MHz)
Polarity
H.Sync
V.Sync
Remark
31.469
31.778
3.813
1.907
25.422
0.636
70.087
14.268
0.064
1.080
12.711
0.413
28.322
Negative
Positive
Separate
43.269
23.111
1.556
2.222
17.778
1.556
85.008
11.764
0.069
0.578
11.093
0.023
36.000
Negative
Negative
Separate
60.023
16.660
1.219
2.235
13.003
0.203
75.025
13.328
0.050
0.466
12.795
0.017
78.75
53.674
18.631
1.138
2.702
14.222
0.569
85.061
11.756
0.056
0.503
11.179
0.019
56.250
Positive
Positive
Separate
93.750
10.667
0.948
1.501
7.901
0.316
75.000
13.333
0.032
0.491
12.800
0.011
202.500
Positive
Positive
Separate
Mode
IBM VESA MAC.
Timing
68.677
14.561
1.016
2.201
10.836
0.508
84.997
11.765
0.044
0.524
11.183
0.015
94.500
Positive
Positive
Separate
49.726
20.110
4.117
3.910
14.524
0.559
75.000
13.414
0.060
0.784
12.549
0.020
57.284
SOG
68.681
14.560
1.280
1.440
11.520
0.320
75.062
13.322
0.044
0.568
12.667
0.044
100.000
Negative
Negative
SOG
91.146
10.971
1.016
1.422
8.127
0.406
85.024
11.761
0.033
0.483
11.235
0.011
157.500
Positive
Positive
Separate
79.976
12.504
1.067
1.837
9.481
0.119
75.025
13.329
0.038
0.475
12.804
0.013
135.000
Positive
Positive
Separate
1024/85 Hz
1024 x 768
832/75 Hz
832 x 624
1152/75 Hz
1152 x 870
1280/75 Hz
1280 x 1024
1280/85 Hz
1280 x 1024
Negative
Negative
Positive
Positive
Separate
Summary of Contents for 720C
Page 33: ...720C 920C 6 1 6 1 720C Exploded View and Parts List ...
Page 34: ...720C 920C 6 2 6 2 920C Exploded View and Parts Lists ...
Page 80: ...R299 720C 920C 10 2 10 2 MICOM Parts Schematic Diagram ...
Page 81: ...720C 920C 10 3 10 3 Horizontal Vertical Processor Parts Schematic Diagram R265 C272 R262 ...
Page 83: ...R561 R562 R501 C530 L521 R523 R526 720C 920C 10 5 10 5 High Voltage Parts Schematic Diagram ...
Page 84: ...720C 10 6 1 10 6 1 720C Video Parts Schematic Diagram ...