Panasonic TX-22LX2 Service Manual page 9

9.2 WB Adjustment
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Instrument Name
1. Remote controller
2. LCD WB meter (Minolta CS-1000 equivalent)
3. Communication jig
4. Computer for external control
Basically perform checking using the production software and make automatic adjustment
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using external computer.
Let the panel stand for more than 3 hours at more than 20°C.
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Basically perform assemble to completion in the ambient environment of room temperature
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more than 20°C.
The aging time is more than 20 min at above room temperature.
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1. Enter into WB adjustment in the plant adjustment mode and measure the WHITE brightness
data to check that it is higher than 400 cd /m2
(When it is below 400 cd /m2, make re-measurement in 30 minutes after cold-on.)
2. For the Excel calculation sheet, use "LX1 series, calculation software".
3. Using the jig, measure the brightness and chromaticity coordinates of single colors, white, red,
green and blue, at the maximum brightness (using basic data) and calculate the gamma data
corrected at the maximum brightness using Excel calculationsheet on the external computer.
4. Write the values calculated in 3 above in the gamma data part in EEPROM.
EEPROM Adr :
0C58h - 0C5Bh, 0C5Ch - C5Fh ...R(color temperature Normal)
0C08h - 0C0Bh, 0C0Ch - 0C0Fh ...G(color temperature Normal)
0C30h - 0C33h, 0C34h - 0C37h ...B(color temperature Normal)
5. Reflect the data in 4 above and select gray and measure the brightness and chromaticity
coordinate at that time and calculate the gamma data (color temperature, normal) and cool and
warm color temperatures, corrected at half-tone, using theexternal computer.
6. Write the values calculated in 5 above in the gamma data part in EEPROM.
EEPROM Adr:
0C58h - 0C5Bh, 0C5Ch - 0C5Fh ...R(color temperature Normal)
0C08h - 0C0Bh, 0C0Ch - 0C0Fh ...G(color temperature Normal)
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Remarks
Correlation can be also taken by CA-110 or equivalent