![background image](http://html.mh-extra.com/html/viewsonic/vlcds26064-4w/vlcds26064-4w_service-manual_1021332010.webp)
E. Image test
1. Picture size & position.
1.1 Picture
size.
Input analog timing modes 1 ~ 26 and DVI timing modes 1 ~ 25:
H-size: 408mm
±
1mm.
V-size: 306mm
±
1mm.
(Extra 640x350)
1.2 Screen
center.
a. 1600x1200: H ± 1mm, V ± 1mm.
b. Others mode
s
: H ± 1.5mm, V ± 1mm.
1.3 Picture position (refer to FIG.2).
H-position:
︱
g3-g4
︱
≦
1.5mm.
V-position:
︱
g1-g2
︱
≦
1.5mm.
2. Luminance test.
2.1 Input a 1600x1200 / 60Hz full white pattern at 100IRE with brightness set to 100% and
Y (Luminance)
Color temperature
x
y
Analog DVI
sRGB
0.313 ± 0.01 0.329 ± 0.01
>200 nit
>200 nit
9300K
0.283 ± 0.01 0.298 ± 0.01
>150 nit
>150 nit
6500K
0.313 ± 0.01 0.329 ± 0.01
>200 nit
>200 nit
5400K
0.335 ± 0.01 0.350 ± 0.01
>180 nit
>180 nit
5000K
0.346 ± 0.01 0.359 ± 0.01
>180 nit
>180 nit
2.2 Input a1600x1200 / 60Hz full white pattern at 100IRE with brightness set to 100% and
Y (Luminance)
Color temperature
Analog DVI
9300K
>220 nit
>220 nit
6500K
>220 nit
>220 nit
5400K
>220 nit
>220 nit
5000K
>220 nit
>220 nit
3. Picture performance test.
3.1 Picture
quality:
Test pattern signal
The following image faults shall not be conspicuous:
1 100IRE white raster pattern
Seam, Noise, Beat, Flicker
2 Cross hatch pattern Ringing, Overshoot, Smear, V-jitter, H-jitter
3 Color bar
Color distortion, Noise, Beat, Color tangent
4 Gray scale (16 steps)
Noise, Beat, Gamma distortion
5
1 dot ON / 1 dot OFF pattern
Noise, Flicker
6 40IRE gray raster
Noise, Beat, Gamma distortion
3.2 DVI performance test.
3.2.1
3.2.2 Test conditions:
a. VG828 digital pattern generator.
b. “TTL” DVI-D single link cable.
3.2.2 Test condition:
a.
a. Resolution: 1600x1200; refresh rate: 75KHz vertical / 60Hz horizontal.
b.
b. 16, 32, 64, and 256-level horizontal gray scales.
c.
c. 16, 32, 64, and 256-level vertical gray scales.
4. Shortcut keys and factory presets
4.1 Shortcut keys: Press the following keys to adjust settings directly, when the OSD is not active.
[
1
]. Main
Menu.
[
2
].
Select next input. (Sequence: D-SUB
→
DVI-A
→
DVI-D)
[
UP
] or [
DOWN
] arrow.
Directly activate the Contrast menu. Switch to Brightness menu
408mm
306mm
g4
g2
g1
g3
FIG. 2
7
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VP2000s
contrast set to 70%.
contrast set to 100%.
Summary of Contents for VLCDS26064-4W
Page 27: ...5 3 6 Click Gprobe 4 24 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 28: ...25 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 29: ...5 3 7 Connect ISP Tool 26 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 32: ...Connect to D Sub Signal cable 29 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 35: ...32 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 36: ...5 3 9 Open VP2000BATCH 33 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 37: ...5 3 10 Key in BATCH VP2000BATCH TXT 34 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 38: ...5 3 11 Press Enter key 35 ViewSonic Corporation Confidential Do Not Copy VP2000s ...
Page 56: ...9 Block Diagram 53 ViewSonic Corporation Confidential Do Not Copy VP2000s ENABLE ...
Page 57: ...10 Schematic Diagrams 54 ViewSonic Corporation Confidential Do Not Copy VP2000s Power Board ...
Page 58: ...55 ViewSonic Corporation Confidential Do Not Copy VP2000s Main Board ...
Page 59: ...56 ViewSonic Corporation Confidential Do Not Copy VP2000s Main Board ...
Page 60: ...57 ViewSonic Corporation Confidential Do Not Copy VP2000s Main Key Board ...
Page 61: ...58 ViewSonic Corporation Confidential Do Not Copy VP2000s Power Board ...
Page 62: ...59 ViewSonic Corporation Confidential Do Not Copy VP2000s Inverter Board ...
Page 63: ...11 PCB Layout Diagrams 60 ViewSonic Corporation Confidential Do Not Copy VP2000s Main Board ...
Page 64: ...61 ViewSonic Corporation Confidential Do Not Copy VP2000s Main Board Bottom ...
Page 65: ...62 ViewSonic Corporation Confidential Do Not Copy VP2000s Power Board ...
Page 66: ...63 ViewSonic Corporation Confidential Do Not Copy VP2000s Power Board Bottom ...
Page 67: ...64 ViewSonic Corporation Confidential Do Not Copy VP2000s Inverter Board ...
Page 68: ...65 ViewSonic Corporation Confidential Do Not Copy VP2000s Inverter Board Bottom ...