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ViewSonic Corporation
4 Test Display Modes & Pattern
Compatible Modes
Analog Digital
640 x 350 @ 70Hz, 31.5kHz
640 x 400 @ 70Hz, 31.5kHz
640 x 480 @ 60Hz, 31.5kHz
640 x 480 @ 67Hz, 35.0kHz
640 x 480 @ 72Hz, 37.9kHz
640 x 480 @ 75Hz, 37.5kHz
720 x 400 @ 70Hz, 31.5kHz
800 x 600 @ 56Hz, 35.1kHz
800 x 600 @ 60Hz, 37.9kHz
800 x 600 @ 75Hz, 46.9kHz
800 x 600 @ 72Hz, 48.1kHz
832 x 624 @ 75Hz, 49.7kHz
1024 x 768 @ 60Hz, 48.4kHz
1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz
1024 x 768 @ 75Hz, 60.0kHz
1280 x 1024 @ 60Hz, 63.4kHz
1280 x 1024 @ 75Hz, 79.97kHz
1280x 720 @ 60Hz, 45kHz
640 x 350 @ 70Hz, 31.5kHz
640 x 400 @ 70Hz, 31.5kHz
640 x 480 @ 60Hz, 31.5kHz
640 x 480 @ 67Hz, 35.0kHz
640 x 480 @ 72Hz, 37.9kHz
640 x 480 @ 75Hz, 37.5kHz
720 x 400 @ 70Hz, 31.5kHz
800 x 600 @ 56Hz, 35.1kHz
800 x 600 @ 60Hz, 37.9kHz
800 x 600 @ 75Hz, 46.9kHz
800 x 600 @ 72Hz, 48.1kHz
832 x 624 @ 75Hz, 49.7kHz
1024 x 768 @ 60Hz, 48.4kHz
1024 x 768 @ 70Hz, 56.5kHz
1024 x 768 @ 72Hz, 58.1kHz
1024 x 768 @ 75Hz, 60.0kHz
1280 x 1024 @ 60Hz, 63.4kHz
1280 x 1024 @ 75Hz, 79.97kHz
1280x 720 @ 60Hz, 45kHz
Function Test Display Pattern
Item Test
Content
Pattern
Specification
Remark
1
Frequency &
Tracking
Fine Line Moire
Eliminate visual wavy
noise.
Figure 1
2
Contrast/Bright
ness
16 Gray Scale
16 gray levels sh should
be distinguishable.
Figure 2
3 Boundary
Horizontal&Vertical
Thickness
Horizontal and Vertical
position of video should
be adjustable to be
within the screen frame.
Figure 3
4
RGB Color
Performance
RGB Color Intensities
Contrast of each R, G,
B, color should be
normal.
Figure
4,5,6
5
Screen
Uniformity &
Flicker
Full White
Should be compliant
with the spec.
Figure 7
6
Dead
Pixel/Line
White Screen & Dark
Screen
The numbers of dead
pixels should be
compliant with the spec.
Figure 7,8
7
White Balance White & Black Pattern
The screen must have
the pure white and black
pattern, no other color.
Figure 9
Summary of Contents for VA712b-2
Page 11: ...11 ViewSonic Corporation 3 Front Panel Function Controls And Indicators...
Page 18: ...18 ViewSonic Corporation 4 2 POWER BLOCK FUNCTION DESCRIPTION Inverter Block Function...
Page 19: ...19 ViewSonic Corporation Power Block Function...
Page 26: ...26 ViewSonic Corporation...
Page 42: ...42 ViewSonic Corporation 3 3 DDC Key In Procedure Sep1 Select and execute DDC Key In program...
Page 43: ...43 ViewSonic Corporation Sep2 Inpute the S N and execute Enter...
Page 44: ...44 ViewSonic Corporation...
Page 45: ...45 ViewSonic Corporation Sep3 Key the Enter and write the data...
Page 46: ...46 ViewSonic Corporation Sep4 If ddc program OK and show data compare ok...
Page 47: ...47 ViewSonic Corporation 6 Trouble Shooting Flow Chart...
Page 66: ...66 ViewSonic Corporation 8 Exploded Diagram And Spare Parts List...
Page 67: ...67 ViewSonic Corporation...
Page 68: ...68 ViewSonic Corporation 5 7 Packing For Shipping...
Page 72: ...72 ViewSonic Corporation Picture 7 Picture 8 Picture 9 Picture 10 Picture 11 Picture 12...
Page 73: ...73 ViewSonic Corporation Picture 13 Picture 14 Picture 15...
Page 74: ...74 ViewSonic Corporation Picture 16 Picture 17 Picture 18 Picture 19 Picture 20...
Page 75: ...75 ViewSonic Corporation 10 Block Diagram...
Page 84: ...84 ViewSonic Corporation 12 PCB Layout Diagram 12 1 MAIN BOARD PCB TOP VIEW...
Page 85: ...85 ViewSonic Corporation...
Page 86: ...86 ViewSonic Corporation 12 2 MAIN BOARD PCB BUTTON VIEW...
Page 87: ...87 ViewSonic Corporation 12 3 KEYBOARD TOP VIEW 12 4 KEYBOARD BUTTON VIEW...
Page 88: ...88 ViewSonic Corporation 12 5 POWER PCB TOP VIEW...
Page 89: ...89 ViewSonic Corporation 12 6 POWER PCB BUTTON VIEW...
Page 90: ...90 ViewSonic Corporation 12 6 AUDIO PCB TOP VIEW BUTTON VIEW...