Timing Chart - Samsung SyncMaster 1000s Service Manual

3-3 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
VGA2/70Hz VGA3/60Hz
720 x 400 640 x 480
Timing
fH (kHz) 31.469 31.469
A µsec 31.777 31.778
B µsec 3.813 3.813
C µsec 1.589 1.589
D µsec 25.422 25.422
E µsec 0.318 0.318
fV (Hz) 70.087 59.940
O msec 14.268 16.683
P msec 0.064 0.064
Q msec 0.858 0.794
R msec 12.711 15.253
S msec 0.191 0.064
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 E
C D E
Sync Sync Sync
B
B
A
A
A : Line time total
C : Back porch
E : Front porch
SyncMaster 1000s (CGP1607L)
Table 3-1. Timing Chart
640/85 Hz 800/85 Hz 1024/85 Hz
640 x 480 800 x 600 1024 x 768
43.269 53.674
23.111 18.631
1.556 1.138
2.222 2.702
17.778 14.222
1.556 0.569
85.008 85.061
11.764 11.756
0.069 0.056
0.578 0.503
11.093 11.179
0.023 0.019
36.000 56.250
Negative Positive Positive
Negative Positive Positive
Separate Separate Separate
Vertical
Video
Video
Q Q R R S S
Sync Sync Sync
P P
P
O O
O
B : Horizontal sync width
D : Active time
VESA
1024/100 Hz 1280/75 Hz
1024 x 768 1280 x 1024
68.677 81.400 79.976
14.561 12.285 12.504
1.016 0.988 1.067
2.201 1.624 1.837
10.836 9.037 9.481
0.508 0.635 0.119
84.997 100.000 75.025
11.765 10.000 13.329
0.044 0.037 0.038
0.524 0.516 0.475
11.183 9.435 12.804
0.015 0.012 0.013
94.500 113.309 135.000
Negative Positive
Positive Positive
Separate Separate
A
Horizontal
B
Vertical
Green
Horizontal
B
O : Frame time total
Q : Back porch
S : Front porch
3 Product Specifications
1280/85 Hz 1600/75 Hz
1280 x 1024 1600 x 1200
91.146 93.750
10.971 10.667
1.016 0.948
1.422 1.501
8.127 7.901
0.406 0.316
85.024 75.000
11.761 13.333
0.033 0.032
0.483 0.491
11.235 12.800
0.011 0.011
157.50 202.500
Positive Positive
Positive Positive
Separate Separate
H/V Composite Sync
VIDEO
Q S
R
Vertical
P
O
Sync-on-Green
P
Q R
O
P : Vertical sync width
R : Active time
MAC.
1152/75 Hz
1152 x 870
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
S
3-3