ViewSonic A91f+-1, Service Manual

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7.2 PRESET TIMING TABLE
PRESET TIMING TABLE
MODE NO. 1 2 3 4 5 6 7
MODE NAME
VGA
640X
480
VGA
640X
400
VGA
640X
480
VESA
800X
600
VESA
1024X
768
VESA
800X
600
VESA
1024X
768
HORIZONTAL DOTS 640 640 640 800 1024 800 1024
VERTICAL LINES 480 400 480 600 768 600 768
PIXEL CLOCK (MHZ) 25.175 25.175 36.00 49.5 65.000 56.25 78.75
HORIZONTAL FREQ (KHZ) 31.47 31.47 43.269 46.875 48.360 53.674 60.023
SYNC. POLARITY - - - + - + +
A H.TOTAL (US)
(PIXELS) 31.778
(800)
31.778
(800)
23.111
(832)
21.333
(1056)
20.680
(1344)
18.631
(1048)
16.660
(1312)
B H.SYNC (US)
(PIXELS) 3.813
(96)
3.813 (96) 1.556
(56)
1.616
(80)
2.09
(136)
1.183 (64) 1.129
(96)
C H.SYNC PORCH (US)
(PIXELS) 1.907
(48)
1.907 (48) 2.222
(80)
3.232
(160)
2.460
(160)
2.702 (152) 2.235
(176)
D H.ACTIVE (US)
(PIXELS) 25.422
(640)
25.422
(640)
17.778
(640)
16.162
(800)
15.75
(1024)
14.222
(800)
13.003
(1024)
E H.FRONT PORCH (US)
(PIXELS) 0.636
(16)
0.318 (8) 1.556
(56)
0.323
(16)
0.370
(24)
0 (0) 0.203
(16)
VERTICAL FREQ (HZ) 59.94 70 85.008 75.00 60.000 85 75.029
SYNC. POLARITY - + - + - + +
O V.TOTAL (MS)
(LINES) 16.684
(525)
14.268
(449)
11.764
(509)
13.333
(625)
16.670
(806)
11.756
(631)
13.328
(800)
P V.SYNC (MS)
(LINES) 0.064
(2)
0.064 (2) 0.069
(3)
0.064
(3)
0.12
(6)
0.056 (3) 0.050
(3)
Q V.BACK PORCH (MS)
(LINES) 1.048
(33)
1.112 (35) 0.578
(25)
0.448
(21)
0.600
(29)
0.503 (27) 0.466
(28)
R V.ACTIVE (MS)
(LINES) 15.254
(480)
12.711
(400)
11.093
(480)
12.800
(600)
15.880
(768)
11.179
(600)
12.795
(768)
S V.FRONT PORCH (MS)
(LINES) 0.318
(10)
0.222 (7) 0.023
(1)
0.021
(1)
0.06
(3)
0
(0)
0.017
(1)
SCANTYPE INTERLACED NO NO NO NO NO NO NO
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