Samsung 400Txn Service Manual page 72

Originator IBM
Mode Name VGA1
Resolution (HxV) 640x350
HORIZONTAL
Frequency 31.469kHz
Total time
Active time
Blank time
Border (L / R)
Data time
Front porch
Sync. width
Back porch
Sync. polarity
VERTICAL
Frequency
Total time
Active time
Blank time
Border (T / B)
Data time
Front porch
Sync. width
Back porch
Sync. polarity
Dot Clock 25.175MHz 28.322MHz 25.175MHz 31.500MHz
Sync. Type Separate
*
Scan Type N/I
IBM
VGA2
720x400
31.469kHz
31.778 31.777
26.058 26.058
5.720 5.720
0.318 0.318
25.422 25.422
0.318 0.318
3.813 3.813
1.589 1.589
Positive Negative
70.086Hz 70.087Hz
14.268ms 14.268ms
11.504ms 13.155ms
2.764ms 1.113ms
0.191ms 0.222ms
11.122ms 12.711ms
0.985ms 0.191ms
0.064ms 0.064ms
1.716ms 0.858ms
Negative Positive
Separate
N/I
IBM VESA
VGA3 640/72Hz
640x480 640x480
31.469kHz 37.861kHz
31.778 26.413
26.058 20.825
5.720 5.588
0.318 0.254
25.422 20.317
0.318 0.508
3.813 1.270
1.589 3.810
Negative Negative
59.940Hz 72.809Hz
16.683ms 13.735ms
15.761ms 13.100ms
0.922ms 0.635ms
0.254ms 0.211ms
15.253ms 12.678ms
0.064ms 0.026ms
0.064ms 0.079ms
0.794ms 0.528ms
Negative Negative
Separate Separate
N/I N/I
VESA
640/75Hz
640x480
37.500kHz
26.667
20.317
6.350
0.000
20.317
0.508
2.032
3.810
Negative
75.000Hz
13.333ms
12.800ms
0.533ms
0.000ms
12.800ms
0.027ms
0.080ms
0.427ms
Negative
31.500MHz
Separate
N/I
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