Timing Chart; Video Signals - Medion B1770NSL Service Manual

MEDION

2-3 Timing Chart

This section describes the timings that the computer industry recognizes as standard for computer-generated

video signals.

M ode 1
H. Dots 720 640
V. Dots 400 480
H-fre q (kHz) 31.47 31.47
Sync Polarity -
A pe riod us 31.78 31.78
B Blking us 6.356 6.356
C Sync us 3.81 3.81
D B.P. us 1.907 1.907
25.42 25.42
E Active us
F F.P. us 0.636 0.636
V-fre q (Hz) 70.08 59.95
Sync Polarity +
O Pe riod ms 14.27 16.68
P Blking ms 1.557 1.43
Q Sync ms 0.064 0.064
R B.P. us 1.08 1.02
12.71 15.25
S Active us
T F.P. us 0.413 0.35
H o rizo n tal
C
H.Parameters:
A: Period
C: Sync Width
E: Active Time
Table 2-2. Timing Chart
2 3 4 5
640 800 640
480 600 480
35 37.88 37.5
- - + -
28.57 26.4 26.666
7.407 6.4 6.35
2.116 3.2 2.03
3.175 2.2 3.81
21.164 20 20.32
2.116 1 0.51
66.667 60.32 75
- - + -
15 16.58 13.33
1.286 0.739 0.533
0.086 0.106 0.08
1.14 0.607 0.427
13.714 15.84 12.8
0.086 0.026 0.026
S ep era te S y n c
E
B
Vid e o
D
F
S y n c
A
B: Blanking Time
D: Back Porch
F: Front Porch
6 7 8 9
640 800 1024 800
480 600 768 600
43.3 46.8 48.36 53.67
- + + +
23.111 21.333 20.68 18.63
5.33 5.172 4.923 4.409
1.556 1.616 2.092 1.138
2.222 3.232 2.462 2.702
17.778 16.162 15.75 14.22
1.556 0.323 0.369 0.569
85 75 60 85
- + + +
11.764 13.333 16.67 11.76
0.67 0.533 0.786 0.578
0.069 0.064 0.124 0.056
0.578 0.448 0.6 0.503
11.093 12.8 15.88 11.18
0.023 0.021 0.062 0.019
K
Vertic al
Vid e o
J
S y n c
I
G
V.Parameters:
G: Period
I: Sync Width
K: Active Time
MD 1772LB (B1770NSL/T)
10 11 12 13
1024 1024 800 1280
768 768 600 1024
56.48 60.02 62.966 64.34
+ + + +
17.71 16.66 15.876 15.55
4.053 3.657 4.028 3.589
1.813 1.219 1.185 0.972
1.92 2.235 2.37 2.248
13.65 13 11.848 11.96
0.32 0.203 0.473 0.374
70.07 75.03 99.472 60
+ + + +
14.27 13.33 10.05 16.67
0.673 0.533 0.544 0.642
0.106 0.05 0.048 0.047
0.513 0.466 0.48 0.501
13.6 12.8 9.526 16.03
0.053 0.017 0.16 0.094
H
L
H: Blanking Time
J: Back Porch
L: Front Porch
Page 7
14
1024
768
68.68
+
14.56
3.725
1.016
2.201
10.836
0.508
85
+
11.77
0.582
0.044
0.524
11.18
0.015