Acer X193HQ Series, Service Manual

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5.1.3 Auto color balance adjustment:
(Analog only, it is not required for DVI-D input source)
1. Setup input timing SXGA (1280x1024@75), pattern 42(5-Mosaic pattern with white color
frame) with Analog signals from Chroma video pattern generator.
2. Enter factory mode (press “e-Key” then press “power” button to turn on monitor).
3. Move black cursor into “BURN IN MODE” tag and select “ON” to enable burn-in mode, then
left OSD menu.
4. Press “ Left Key ” button to do white balance for auto color balance adjustment (will get
optimal gain / offset (clamp) values).
5.1.4 Color 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 “e-Key” then press “power” button to turn on monitor).
3. Confirm auto color balance adjustment had already been done.
4. Measure each color temperature (Cool&Warm) by Minolta CA-110 (or equivalent equipment).
5. Two methods can be used to adjust RED, GREEN, BLUE value of each color temperature,
Cool&Warm to meet following spec requirement, the 1
st
method is by using external PC and
IIC alignment protocol to do automatic adjustment, and the 2
nd
method is by manually and
must be in factory mode.
X+- 0.283+(-) 0.03 Color temperature
(Cool set on OSD)
Y+- 0.297+(-) 0.03
X+- 0.313+(-) 0.03 Color temperature
(Warm set on OSD)
Y+- 0.329+(-) 0.03
6. Turns off the monitor power.