BenQ M2700HD Service Manual page 17

BenQ M2700HD
Color 1. Do "Auto Color Balance" at 1920×1080@60Hz, 32gray shades
Temperature 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
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1. Use Chroma Pattern Generator to make sequence.
Modes
VESA (640x480 800x600 1024x768 1440x900 1920x1080),
switching
and power saving signal,etc.
check
2. Confirm the above timing modes must be full screen and
the picture must be normal.
3. LED is amber at power saving mode.
VGA cable When VGA cable is not plugged, the monitor will work in power saving
detector mode.
1. Mode: 1920×1080@60Hz
Panel Flicker
2. Set Brightness& contrast to default value
check
3. Do "Auto Adjustment"
4. Shut down PC to check whether there's glitter on the center
of the picture.
Power saving 1.Mode: 1920×1080@60Hz
2. Pattern: full white
3. Brightness: Max.
4. Contrast: Default
5. Check power consumption
Status
Power On
Power Saving
Power Off
Remark:
the table is for VGA,DVI and HDMI. But for S-Video, composite and component: power off < 0.5W.
the three ports will not go in power saving.
at each mode
H-sy V-sy
Video
nc nc
on on active
off on blanked
on off blanked
off off blanked
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16
Service Manual
Chroma Signal Generator
and color analyzer
Chroma
Signal Generator
Visual check
Chroma Signal Generator
Chroma signal generator
& PC
Chroma signal generator
Power
≤ 85W Green
< 1W Amber
< 1W Amber
< 1W Amber
< 0.5W Off
LED