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Contrast
Check
1. Set input mode to 1920×1080@60Hz
2. Set Pattern to 32 gray shades
3. Set brightness/contrast to the max. The brightest 4~8 shades brightness
cannot be distinguished.
Chroma
Signal Generator
Color
Temperature
1. Do “Auto Color Balance” at 1920×1080@60Hz, 32gray shades
2. Measure color temperature, check it complies with the
following temperature :
5800K x=0.326 +/- 0.02, y = 0.342+/-0.02
6500K x = 0.313 +/- 0.02, y = 0.329+/-0.02
9300K x = 0.283 +/- 0.02, y = 0.297+/-0.02
Chroma Signal Generator
and color analyzer
Modes
switching
check
1. Use Chroma Pattern Generator to make sequence.
VESA (640x480 800x600 1024x768 1440x900 1920x1080),
And power saving signal,etc.
2. Confirm the above timing modes must be full screen and
the picture must be normal.
Chroma
Signal Generator
VGA cable
detector
When VGA cable is not plugged, the monitor will work in power saving
mode.
Visual check
Chroma Signal Generator
Panel Flicker
check
1. Mode: 1920×1080@60Hz
2. Set Brightness& contrast to default value
3. Do “Auto Adjustment”
4. Shut down PC to check whether there’s glitter on the center
of the picture.
Chroma signal generator
& PC
Power saving 1.Mode: 1920×1080@60Hz
2. Pattern: full white
3. Brightness: Max.
4. Contrast: Default
at each mode
Chroma signal generator
Status
H-sync
V-sync
Video
Power
LED
Power On
on
on
active
≤
48W
Green
off on
blanked
<
2W Amber+blue
on off
blanked
<
2W Amber+blue
Power Saving
off off
blanked
<
2W Amber+blue
Summary of Contents for G2220HD - 21.5" LCD Monitor
Page 17: ...17 Power Off 1W Off...
Page 21: ...21 5 Stick the foil 6 Stick the foil 7 Plug in the keypad cable 8 Assemble the back cover...
Page 22: ...22 9 Assemble the stand and screw the screws 10 Assemble the base...
Page 25: ...25 5 Remove the keypad cable 6 Pull out the lamp wire 7 Remove the foil 8 Remove the foil...
Page 26: ...26 9 Pull out the LVDS 10 Remove the chassis 11 Remove the keypad 12 Remove the panel...
Page 27: ...27 5 4 Block diagram Power Board...
Page 28: ...28...
Page 29: ...29...
Page 30: ...30...
Page 31: ...31 IF Board...
Page 32: ...32...
Page 33: ...33...
Page 34: ...34...
Page 35: ...35 5 5 Lay out 5 5 1 IF board lay out...
Page 36: ...36...
Page 37: ...37 5 5 2 P I Board lay out...
Page 47: ...47 6 Dimmession Drawing...