14 Reference Infomation
14-5
Separate Sync
<Separate Sync Only>
14-4 Timing Chart
C D
AO
E
BP
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
Table 2-1 Timing Chart
This section of the service manual describes the timing that the computer industry recognizes as standard for computer-
generated video signals.
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
1280/60Hz
1280X800
49.306
20.282
0.451
1.127
18.028
0.676
59.91
16.692
0.122
0.284
13.225
0.061
71.00
Positive
Negative
2560/60Hz
2560X1600
98.713
10.13
0.119
0.298
9.534
0.179
59.972
16.675
0.061
0.375
16.209
0.030
268.500
Positive
Negative
Mode
VESA-Reduced Blanking
Timing