Haier LD42U7000, Service Manual

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42
″&50″ LCD TV Haier LD42U7000&LD50U7000
33
7. Adjustment
7.1 ADC/ WB Adjustment
White Balance Adjustment:
Press “Menu+8893” by Haier Remote Control to enter Factory menu, change “Current
Source” to “component”, then change “Color Temp” to Cool, Normal, Warm, then choose Gain, set R/G/B to color
temperature spec range under each color temp. Choose LE26H100C for example:
Attention : R ,G,B should be less
than 138,128,138, make sure that other source’s R,G,B is the same as component.
Or else, adjust other source’s R, B, G the same numerical value as component source.
White Balance numerical value checking:
Change current source to “AV”/T 304, “HDMI”/T349, “VGA”/T137 one
by one to make sure that the color temperature numerical value is meet the spec.
Picture-1 Picture-2
The color temperature is written in the White Balance program, checking standard please refer to Production SPEC.
ADC is no need to adjust.
Picture Mode Cool (12000) Standard(9300) Warm(6500)
x (center) 0.272
+/- 0.01
0.285
+/- 0.01
0.313+/-0.02
y (center) 0.278
+/- 0.04
0.293
+/- 0.04
0.329+/-0.18