Service manual

2). Burn In Mode:
Press  ,   buttons simultaneously and Power on without signal, hold on for 3 seconds. Then the
screen will show Burn In Mode. Press   button, you can find the information about this monitor.
3). White Balance:
Set the screen on 640*480@60Hz resolution pure black and white pattern, no other color. Press  ,  
and   simultaneously.
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ViewSonic Corporation
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Confidential – Do Not Copy
VP171/b/s