AOC T2254we, Service Manual

Page: 37 / 94

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7. Adjustment
ADC Adjustment
1. Factory Mode
Turn on the TV. Press menu key and then press number key 1+9 +9+9+back. It will achieve the factory mode.
2. ADC Adjustment
(1) Change TV, press the “Current Source” to Component mode and change signal to TIMING 311and 314), Pattern
185(Color BAR), press the “Auto Color”;
(2) Change TV, press the “Current Source” to PC mode and change signal to PC TIMING 137(1024X768); Pattern
42(5 MOSAIC ) , press the “Auto Color”.
3. White Balance Adjustment
（
1
）
Enter into the factory mode:(same as the above-mentioned).
（
2
）
Take an example of adjust Ypbpr source.
a. Select item ”Source”: Ypbpr and item “Color Temp”: Normal , Adjust gain of RGB to meet spec in the below
setting of Tim\pat. (COMPONENT mode: TIM = 314; PAT = 141(80IRE))
b. Select item ”Source”: Ypbpr and item “Color Temp”:
Warm , Adjust gain of RGB to meet spec in the below setting
of Tim\pat. (COMPONENT mode: TIM = 314; PAT = 141(80IRE))
c. Select item “Source”: Ypbpr and item “Color Temp”:
Cool , Adjust gain of RGB to meet spec in the below setting
of Tim\pat. (COMPONENT mode: TIM = 314; PAT = 141(80IRE))
（
3
）
Take an example of adjust VGA Normal:
a. Select item “Source”: VGA and item “Color Temp”: Normal , Adjust gain of RGB to meet spec in the below setting
of Tim\pat. (VGA mode: TIM = 137; PAT = 141(80IRE)
b. Select item “Source”: VGA and item “Color Temp”:
Warm , Adjust gain of RGB to meet spec in the below setting
of Tim\pat. (VGA mode: TIM = 137; PAT = 141(80IRE)
c. Select item “Source”: VGA and item “Color Temp”: Cool , Adjust gain of RGB to meet spec in the below setting of
Tim\pat. (VGA mode: TIM = 137; PAT = 141(80IRE)
4 、 The following color specifications for reference, to RD engineering specifications.
Source VGA/YPbPr VGA/YPbPr VGA/YPbPr
Temp Normal/(7500 K) Warm/(6500 K) Cool/(9300 K)
x (center) 0.295 0.020 0.313 0.020 0.285 0.020
y (center) 0.305 0.020 0.329 0.020 0.293 0.020
Note: all models of color temperature within specification, but also ensure the brightness conform to engineering
specifications.