Chapter 6 Function Test And Alignment Procedure; Function Test And Alignment Procedure - ViewSonic VG700b Service Manual

6-5

Function Test and Alignment Procedure

6-5.1 All Mode Reset
Input signal to VG700b, turn off the power of VG700b. Press “ ”,
“ ” and “Power on” buttons on the select knob simultaneously for 3-5
seconds, release “Power on” button first, then else buttons. The screen
will show “All Mode Reset”. This action will allow you to erase all
end-user’s settings and restore the factory defaults.
6-5.2 Auto Image Adjust
Please select and enter “Auto Image Adjust” function on OSD
Main Menu or press “ 2 ” button directly. The “Auto Image Adjust”
function is aimed to offer a better screen quality by built-in ASIC. For
optimum screen quality, the user has to adjust each function manually.
6-5.3 Fine Tune
Test Signal:
Test Pattern:
* Check and see if the image has noise and focus is well performed.
* If not, readjust by the following steps:
a.)
b.)
6-5.4 Boundary
Test Signal:
Test Pattern:
* Check and see if the image boundary is within the screen frame.
* If not, readjust by the following steps:
a.)
b.)
ViewSonic Corporation
1280*1024@75Hz
Line Moire Pattern
Select and enter “Manual Image Adjust” function on OSD Main Menu.
Then, select and enter “Fine Tune” function to adjust the image to
eliminate visual noise.
1280*1024@75Hz
Horizontal & Vertical Line Thickness Pattern
Select and enter “Manual Image Adjust” function on OSD Main Menu.
Then, select and enter “Horizontal/Vertical Position” or
“Scaling\Fit All” function to adjust the video Boundary to be full
scanned and within screen frame.
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6-5
VG700b