Acer V223HQ Product Service Manual page 38

5.1.4 Color temperature adjustment
1. Setup input timing to any preset modes, pattern 41(full white color pattern) with Analog signals from
Chroma video pattern generator.
2. Enter factory mode (press "Empowering" & "Power" buttons at the same time to turn on monitor).
3. Move cursor into "Burn-in Mode" tag and select "On" to enable burn-in mode.
4. Make sure ADC calibration (auto color balance adjustment) had already been done.
5. Measure color temperature by Minolta CA-110 (or equivalent equipment).
6. Adjust the color temperature ~~ Two methods can be used to adjust RED, GREEN, BLUE value of each
color temperature, C1/Cool, C2/ Warm & C3/ User to meet following spec requirement, the 1
by using external PC and IIC alignment protocol to do automatic adjustment, and the 2
manually and must be in factory mode.
Color temperature
(C0/cool on OSD)
Color temperature
(C2/Warm on OSD)
Color temperature
(C3/User on OSD)
7. Move cursor into "Burn-in Mode" tag and select "No" to disable burn-in mode.
8. Turns off the monitor power.
5.1.5. Writing EDID data into monitor
1. Setup a PC with DDC card.
2. Connect PC to monitor with a D-sub signal cable.
3. Please refer to the Q212 for the correct EDID file.
4. Runs the writing program to write the analog EDID data into EEPROM for analog input(ie. 15-pin D-sub).
5. Repeat step 4 and write the digital EDID data into EEPROM for DVI-D and HDMI input(ie. 24-pin DVI-D).
6. Read both EEPROM data and confirm it to match with the Q212 definition.
(Note : The DVI-D input may not operation correctly if the digital EDID data do not exist.)
X+-
Y+-
Luminance
X+-
Y+-
Luminance
X+-
Y+-
Luminance
- 38 -
nd
method is by
0.283+(-) 0.03
0.297+(-) 0.03
> 180 cd/m²
0.313+(-) 0.03
0.329+(-) 0.03
> 220 cd/m²
0.313+(-) 0.03
0.329+(-) 0.03
> 220 cd/m²
st
method is