![background image](http://html1.mh-extra.com/html/viewsonic/va912-b-3/va912-b-3_service-manual_1020987024.webp)
ViewSonic Corporation
Confidential-Do Not Copy
VA912/b-3
21
5.15 Gray_Scale_0-100_H256
Test Signal: 1280*1024@60Hz
Test Pattern:
Horizontal 64(256) Gray Scale (Up
→
Down
,
From 0 to 100% White)
Inspection Item: Line Defect & Function Defect
5.16 Block Window
Test Signal: 1280*1024@60Hz
Test Pattern:
Black block at the center
Inspection Item: Cross Talk & Optical Character
5.17 Black_Tile
Test Signal: 1280*1024@60Hz
Test Pattern:
Black tile under white background
Inspection Item: Function Defect & Image Remain