Panasonic TH-37PD25U/P, Service Manual

Page: 32 / 255

12.2. NTSC panel white balance
1 NTSC Color Pic Mode: 1) Find the nearest area to brightness of 10 cd/m
2
as Low
Gray Scale Analyzer Vivid Sub Adjust light by color sensor.
Pattern Color Temp: Sub Bright 2) Adjust Sub bright to set Low light level to 10 cd/m
2
Cool exactly.
Aspect:
Picture:
PANEL W/B
16:9
63
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.-01.
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.-01.
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. -01
2 Pic Mode: 1) Change Color Temp to "Normal".
Vivid PANEL W/B
Color Temp: 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
Picture:
63
3 Pic Mode: 1) Change Color Temp to "Warm".
Vivid PANEL W/B
Color Temp: 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
Picture:
63
4 Pic Mode: Picture Menu 1) Change Color Temp to "Cool".
Vivid Sub Adjust
Color Temp: Sub Bright 2)Re-set Sub bright to "30"
Cool
Aspect:
16:9
INPUT Alignment menu Procedure Equipment Setting
32
TH-37PD25U-P / TH-42PD25U-P