Alignment Procedures, Ntsc Panel White Balance

Alignment Procedures

NTSC Panel White Balance

Equipment required: NTSC Gray scale pattern Generator, Color Analyzer Panel Settings; Picture = Normal, White Balance = Cool, Aspect Ratio = 16:9

Pattern Display:

Figure 71

Step 1 Find the area of Low light closest to 10 cd/m2 using the color sensor.

Step 2 Access the Sub Brightness setting and Adjust Sub bright level of this area to exactly 10 cd/m2.

Step 3- Access the G cut off setting and Set G cut off to " 80 ".

Step 4- Access the B and R cutoff settings and adjust B and R cut off adjustments so the color temperature matches the settings in Table 1.

Table 1

Color Temp.	X	Y
Cool (High)	0.272	0.290
Normal (Mid)	0.288	0.296
Warm (low)	0.313	0.329

Step 5- If the Sub Brightness has changed, re-adjust it to set Low light to 10 cd/m2.

Step 6- Find the 75% white area using the color sensor. Step 7- Access the G Drive setting and set G Drive to " D8 ".

Step 8- Access the B and R Drive settings and adjust B and R Drive to set the color temperature as shown in table 1.

Step 9- Repeat item (4 to 7) to set both Low light and High light.

Step 10- Increase the level of R, G and B Drive to the largest level of "FC". Step11- Re-adjust Low light level again.

Step 12- Change white balance to "Normal" and repeat procedures (3 to 11) for Cool mode.

Step 13- Change white balance to "Warm" and repeat procedures (3 to 11) for Cool mode.

Step 14- Change color temperature to "Cool" and Reset Sub Bright value to “30”.

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