Panasonic TH-42PX20U/P Operating, Service Manual

Page: 373 / 406

11.3. HD panel white balance
1
HD
Color Picture: 1) Find the nearest area to brightness of 10 cd/m
2
as Low
Gray Scale
Analyzer Normal Sub Adjust light by color sensor.
Pattern
White balance: Sub Bright 2) Adjust Sub bright to set Low light level to 10 cd/m
2
Cool exactly.
Aspect: PANEL W/B
16:9 G cut off 3) Set G cut off to " 80 ".
PANEL W/B
B cut off 4) Adjust B and R cut off to set color temperature as
R cut off shown Fig.-04.
High light 75%
Sub Adjust
Low light 15%
Sub Bright 5) If Sub Bright is changed re-adjust it to set Low light
to 10 cd/m
2
.
6)Find 75% of white area by color sensor.
PANEL W/B
G Drive 7) Set G Drive to " E8 ".
PANEL W/B
B Drive 8) Adjust B and R Drive to set color temperature
R Drive as shown Fig.-04.
9) Repeat item 4) to 7) to set both Low light and
high light.
PANEL W/B
R,G,B Drive 10) Increase same steps of R, G and B Drive to set
R,G,B Drive largest level of 3 color drive to "FC".
PANEL W/B
R,G,B cut off 11) Re-adjust Low light level again.
Color Temp. x y
Cool 0.276 0.276
Normal 0.288 0.296
Warm 0.313 0.329
Fig. -04
2 Picture: 1) Change white balance to "Normal".
Normal PANEL W/B
White balance: R,G,B cut off 2) Repeat procedure 3) to 11) of Cool mode.
Normal PANEL W/B
Aspect: R,G,B Drive
16:9
3 Picture: 1) Change white balance to "Warm".
Normal PANEL W/B
White balance: R,G,B cut off 2) Repeat procedure 3) to 11) of Cool mode.
Warm
PANEL W/B
Aspect: R,G,B Drive
16:9
4 Picture: Picture Menu 1) Change color templature to "Cool".
Normal Sub Adjust
White balance: Sub Bright 2)Re-set Sub bright to "30"
Cool
Aspect:
16:9
INPUT Alignment menu Procedure Equipment Setting
29
TH-42PX20U-P