ViewSonic VA2226w-1, Service Manual

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ViewSonic Corporation
Confidential - Do Not Copy
VA2226w-1
28 1280 x 768 @ 75 Hz, 60.3 KHz CVT
29 1280 x 960 @ 50 Hz, 49.4 KHz
30 1280 x 960 @ 60 Hz, 59.7 KHz VESA
31 1280 x 960 @ 75 Hz, 75.2 KHz VESA
32 1280 x 1024 @ 50 Hz, 52.7 KHz
33 1280 x 1024 @ 60 Hz, 64 KHz VESA
34 1280 x 1024 @ 75 Hz, 80 KHz VESA
35 1440 x 900 @ 60 Hz 55.9 KHz VESA
36 1440 x 900 @ 75 Hz 70.6 KHz VESA
37 1600 x 1200 @ 60 HZ 75.0 KHz VESA
38 1680 x 1050 @ 60 HZ 65.3 KHz CVT
*1. Tolerance
≧
±2KHz (if no overlapping issue)
*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message without
blanking.
*3. The image quality of 50Hz mode might be worse than 60Hz.
Primary Presets
1680x1050 @ 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 : 5 seconds (Max), excluding “Auto
Adjust” time
●
Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting when
execute “Auto Adjust”
●
The monitor needs to do “Auto Adjust” the first time a new mode is detected
(see section “0-Touch™ Function Actions”)
●
While running Change Mode, Auto Adjust or Memory Recall, the image shall blank