IBM T860 9494-HWN, Service Manual

Page: 4 / 44

TIMING CHART
- 4 -
VIDEO
SYNC
B
D
C
F
E
A
<< Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >>
H – 37.5 840 640 16 64 120
V – 75 500 480 1 3 16
H – 43.269 832 640 56 56 80
V – 85.0 509 480 1 3 25
H – 31.469 840 640 16 96 48
V – 59.94 525 480 10 2 33
H – 31.468 900 720 18 108 54
V + 70.8 449 400 12 2 35
H + 31.469 800 640 16 96 48
V – 70.8 449 350 38 2 59
H + 37.879 1056 800 40 128 88
V + 60.317 628 600 1 4 23
H + 46.875 1056 800 16 80 160
V + 75.0 625 600 1 3 21
H + 53.674 1048 800 32 64 152
V + 85.061 631 600 1 3 27
H +/– 49.725 1152 832 32 64 224
V +/– 74.55 667 624 1 3 39
H – 48.363 1344 1024 24 136 160
V – 60.0 806 768 3 6 29
H – 60.123 1312 1024 16 96 176
V – 75.029 800 768 1 3 28
H + 68.677 1376 1024 48 96 208
V + 84.997 808 768 1 3 36
H +/– 68.681 1456 1152 32 128 144
V +/– 75.062 915 870 3 3 39
H +/– 61.805 1504 1125 18 134 200
V +/– 65.96 937 900 2 4 31
H + 63.981 1688 1280 48 112 248
V + 60.02 1066 1024 1 3 38
H + 79.976 1688 1280 16 144 248
V + 75.035 1066 1024 1 3 38
Mode
H/V
Sort
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
25.175
31.5
36.0
25.175
28.321
40.0
49.5
56.25
57.283
65.0
78.75
94.5
100.0
92.978
108.0
135.0
640x480
75Hz
640x480
85Hz
640x480
60Hz
720x400
70Hz
640x350
70Hz
800x600
60Hz
800x600
75Hz
800x600
85Hz
832x624
75Hz
1024x768
60Hz
1024x768
75Hz
1024x768
85Hz
1152x870
75Hz
1152x900
65Hz
1280x1024
60Hz
1280x1024
75Hz
Sync
Polarity
Frequency
Dot
Clock
Total Period
(E)
Video Active Time
(A)
Sync Duration
(D)
Back Porch
(F)
Front Porch
(C)
Resolution