ViewSonic VP2330WB Service Manual - Page 31

5. Adjustment Procedure 1. Function test (1) Test equipment Color video signal and pattern generator (or PC with WUXGA resolution) (2) Test condition Before function testing and alignment, the unit must warm up for at least 30 minutes under the following conditions: 1. Room temperature 2. With full-white screen , RGB , black pattern 3. with cycled display modes. 2. Test display modes Timing Table Item Timing Analog Remark Digital - TMDS SOG Composite Separated 1 640 x 350 @ 70 Hz, 31.5 KHz 2 640 x 350 @ 85 Hz, 37.9 KHz 3 640 x 400 @ 60 Hz, 31.5 KHz 4 640 x 400 @ 70 Hz, 31.5 KHz 5 640 x 400 @ 85 Hz, 37.9 KHz 6 640 x 480 @ 50 Hz, 24.7 KHz 7 640 x 480 @ 60 Hz, 31.5 KHz 8 640 x 480 @ 67 Hz, 35 KHz 9 640 x 480 @ 72 Hz, 37.9 KHz 10 640 x 480 @ 75 Hz, 37.5 KHz 11 640 x 480 @ 85 Hz, 43.3 KHz 12 720 x 400 @ 70 Hz, 31.5 KHz 13 720 x 400 @ 85 Hz, 37.9 KHz 14 720 x 480 @ 15 720 x 576 @ 16 800 x 600 @ 17 800 x 600 @ 18 800 x 600 @ 19 800 x 600 @ ViewSonic Corporation 60 Hz, 31.5 KHz 50 Hz, 31.3 KHz 50 Hz, 24.7 KHz 56 Hz, 35.1 KHz 60 Hz, 37.9 KHz 72 Hz, 48.1 KHz 28 For Separated sync, Only horizontal full screen, The vertical position is at the center. For SOG sync, switch 640x400@60Hz and 640x480@60Hz by [1]+[2] short cut key (primery = 640x480@60Hz) For Separated Sync, Switch 640x400@70Hz and 720x400@70Hz by [1]+[2] short cut key (primery = 640x400@70Hz) For Separated Sync, Switch 640x400@85Hz and 720x400@85Hz by [1]+[2] short cut key (primery = 640x400@85Hz) For SOG sync, switch 640x400@60Hz and 640x480@60Hz by [1]+[2] short cut key (primery = 640x480@60Hz) For Separated Sync, Switch 640x400@85Hz and 720x400@85Hz by [1]+[2] short cut key (primery = 640x400@85Hz) Use Hot Key to switch the color. Confidential - Do Not Copy VP2330wb