ViewSonic VA1912w-2 Service Manual page 9

2.5 ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Horizontal Frequency
Vertical Refresh Rate
Maximum Pixel Clock
Sync Polarity
Timing Table
Item
1 640 x 350 @ 70Hz, 31.5kHz
2 640 x 400 @ 60Hz, 31.5kHz
3 640 x 400 @ 70Hz, 31.5kHz
4 640 x 480 @ 60Hz, 31.5kHz
5 640 x 480 @ 67Hz, 35.0kHz
6 640 x 480 @ 72Hz, 37.9kHz
7 640 x 480 @ 75Hz, 37.5kHz
8 640 x 480 @ 85Hz, 43.27kHz
9 720 x 400 @ 70Hz, 31.5kHz
10 800 x 600 @ 56Hz, 35.1kHz
11 800 x 600 @ 60Hz, 37.9kHz
12 800 x 600 @ 75Hz, 46.9kHz
13 800 x 600 @ 72Hz, 48.1kHz
14 800 x 600 @ 85Hz, 53.7kHz
15 832 x 624 @ 75Hz, 49.7kHz
16 1024 x 768 @ 60Hz, 48.4kHz
17 1024 x 768 @ 70Hz, 56.5kHz
18 1024 x 768 @ 72Hz, 58.1kHz
19 1024 x 768 @ 75Hz, 60.0kHz
20 1024 x 768 @ 85Hz, 68.67kHz
21 1152 x 864@ 75Hz, 67.5kHz
22 1280 x 1024 @ 60Hz, 63.4kHz
23 1280 x 1024 @ 75Hz, 79.97kHz
24 1280x 768 @ 60Hz, 47.78kHz
25 1280 x 960 @60Hz, 60kHz
26 1440 x 900 @ 60Hz, 55.96kHz
*The image vertical size might not be full screen.
Primary Presets
1440 x 900 @ 60Hz
User Presets
Number of User Presets (recognized timings) Available: 10 presets total in FIFO configuration
Changing Modes
● Maximum Mode Change Blank Time for image stability : 3 seconds (Max), excluding "Auto Adjust" time
● Under DOS mode (640 x 350, 720 x 400 & 640 x 400), there is no "Auto Adjust" feature.
● The monitor needs to do "Auto Adjust" the first time a new mode is detected but except the DOS mode 640 x 350, 720 x
400 & 640 x 400.(see section "0-Touch™ Function Actions")
● While running Change Mode, Auto Adjust or Memory Recall, the image shall blank
ViewSonic Corporation
30 – 82 kHz
50 – 85* Hz.
135 MHz
Independent of sync polarity.
Timing
(EDID file is 140MHz)
Analog
Yes
Yes*
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
6
Confidential - Do Not Copy
Digital
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
VA1912w-2_VA1912wb-2