14 Reference Infomation
14-4
Separate Sync
14-3 Timing Chart
This section of the service manual describes the timing that the computer industry recognizes as standard for com-
puter-generated video signals.
C
D
A
O
E
B
P
Video
Sync
Sync
Video
Q
R
S
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
H/V Composite Sync
Sync-on-Green
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
1280/75Hz, 50Hz
1280x1024
1024/75Hz
1024 x 768
60.023
16.660
1.219
2.235
13.003
0.203
75.029
13.328
0.050
0.466
12.795
0.017
78.750
Positive
Positive
Separate
31.469
31.777
3.813
1.589
26.058
0.318
70.087
14.268
0.064
0.858
13.155
0.191
28.322
Negative
Positive
Separate
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
IBM
640/75 Hz,
60Hz, 72Hz
640 x 480
800/75 Hz, 56Hz,
60Hz, 72Hz
800 x 600
1024/60Hz
1024 x 768
VGA2/
70 Hz
720 x 400
VGA3/
60 Hz
640 x 480
Table 2-1 Timing Chart
31.469
31.778
3.813
1.589
26.058
0.318
59.940
16.683
0.064
0.794
15.761
0.064
25.175
Negative
Negative
Separate
37.500
26.667
2.032
3.810
20.317
0.508
75.000
13.333
0.080
0.427
12.800
0.027
31.500
Negative
Negative
Separate
46.875
21.333
1.616
3.232
16.162
0.323
75.000
13.333
0.064
0.448
12.800
0.021
49.500
Positive
Positive
Separate
48.363
20.677
2.092
2.462
15.754
0.369
60.004
16.666
0.124
0.600
15.880
0.062
75.000
Negative
Negative
Separate
Mode
VESA
Timing
Содержание LE15S51BP
Страница 11: ...7 Block Diagrams 7 1 7 Block Diagram ...
Страница 12: ...Memo 7 Block Diagrams 7 2 ...
Страница 13: ...13 Circuit Descriptions 13 1 13 Circuit Descriptions 13 1 Overall Block Structure ...
Страница 14: ...13 Circuit Descriptions 13 2 13 2 1 MAIN BOARD POWER TREE 13 2 Partial Block Description ...
Страница 16: ...13 Circuit Descriptions 13 4 ...
Страница 82: ...12 PCB Layout 12 2 12 1 2 Power board LE15S51BP ...
Страница 83: ...12 PCB Layout 12 3 12 1 2 Power board LE20S51BP CNI803 Pannel Control Connecter ...
Страница 84: ...12 PCB Layout 12 4 Memo ...
Страница 88: ...Memo 1 Precautions 1 4 ...
Страница 94: ...Memo 2 Product Specifications 2 6 ...
Страница 106: ...9 Schematic Diagrams 9 2 1 2 5 3 6 4 7 8 ...
Страница 107: ...9 Schematic Diagrams 9 3 This Document can not be used without Samsung s authorization 9 2 UOC III Schematic Diagram ...
Страница 108: ...9 Schematic Diagrams 9 4 9 ...
Страница 111: ...9 Schematic Diagrams 9 7 ...
Страница 112: ...9 Schematic Diagrams 9 8 ...
Страница 114: ...9 Schematic Diagrams 9 10 ...
Страница 117: ...4 Troubleshooting 4 3 WAVEFORMS 1 2 5 3 6 4 4 7 8 ...
Страница 120: ...4 Troubleshooting 4 6 Memo ...
Страница 122: ...8 Wiring Diagrams 8 2 Memo ...