Timing Chart - Samsung CSE700P Plus Service Manual

2 Product Specifications

2-2 Timing Chart

This section of the service manual describes the timing that the computer industry recognizes as standard
for computer-generated video signals.
Mode
IBM
VGA2/70 Hz VGA3/60 Hz
720 x 400 640 x 480
Timing
fH (kHz) 31.469 31.469
A µsec 31.778 31.778
B µsec 3.813
C µsec 1.907
D µsec 25.422 25.422
E µsec 0.636
fV (Hz) 70.087 59.940
O msec 14.268 16.683
P msec 0.064
Q msec 1.080
R msec 12.711 15.253
S msec 0.413
Clock
Freq. 28.322 25.175
(MHz)
Polarity
H.Sync Negative Negative
V.Sync Positive Negative
Remark Separate Separate
Separate Sync
Horizontal
Video
Video
C D
C D E
Sync Sync Sync
B
B
A
A
A : Line time total
C : Back porch
E : Front porch
2-2
Table 2-1. Timing Chart (17")
640/85 Hz 800/85 Hz
640 x 480 800 x 600
43.269 53.674
23.111 18.631
3.813 1.556 1.138
1.907 3.810 2.702
5.222 14.222
0.636 17.778 0.569
85.008 85.061
13.333 11.756
0.064 0.080 0.056
1.048 0.427 0.503
12.800 11.179
0.318 0.027 0.019
36.000 56.250
Negative Positive
Negative Positive
Separate Separate
Vertical
Video
Video
E Q R
Q R
Sync Sync
Sync
P P P
O O
O
B : Horizontal sync width
D : Active time
VESA
1024/75 Hz 1024/85 Hz
1024 x 768 1024 x 768
60.023 68.677
16.660 14.561
1.219 1.016
2.235 2.201
13.003 10.836
0.203 0.508
75.029 84.997
13.328 11.765
0.050 0.044
0.466 0.524
12.795 11.183
0.017 0.015
78.750 94.500
Positive Positive
Positive Positive
Separate Separate
A
Horizontal
B
S
S
Vertical
Green
Horizontal
B
O : Frame time total
Q : Back porch
S : Front porch
1024/100 Hz 1280/75 Hz 1280/85 Hz
1024 x 768 1280 x 1024 1280 x 1024
81.400 79.976 91.146
12.285 12.504 10.971
0.988 1.067
1.624 1.837
9.037 9.481
0.635 0.119
100.000 75.025 85.024
10.000 13.329 11.761
0.037 0.038
0.516 0.475
9.435 12.804 11.235
0.012 0.013
113.309 135.000 157.500
Negative Positive Positive
Positive Positive Positive
Separate Separate Separate
H/V Composite Sync
VIDEO
Q
R
Vertical
P
O
Sync-on-Green
P
R
Q
O
P : Vertical sync width
R : Active time
MAC.
832/75 Hz
832 x 624
49.726
20.110
1.016 1.117
1.422 3.910
8.127 14.524
0.406 0.559
74.551
13.414
0.033 0.060
0.483 0.784
12.549
0.011 0.020
57.284
Negative
Negative
SOG
S
S
CSE78**T/CSE98**T