Che C K C R Os S T Al K (S ); C Olor Temperature Adjus Tment - Philips 220S W9FS /00 Service Manual

W here B _max = Maximum brightness
B _min = Minimum brightness
4.5 C hec k C ros s talk (S )
Apply P attern 2. S et contrast and brightness at 100 %.
Measure Y A. T hen output P attern 3 and measure Y B .
the cross talk value :
4.6

C olor temperature adjus tment

T here are three factory preset white color 9300K , 6500K , sR G B .
Apply full white pattern, with brightness in 100 % position and the contrast control at 50 % position.
T he 1931 C IE C hromaticity (color triangle) diagram (x ,y) coordinate for the screen center should
be:
C IE coordinates
11500K
9300K
8200K
7500K
6500K /sR G B
sR G B
5000K
G eneral P roduc t S pec ific ation
( B _max - B _min )
B _max
AB S ( Y A - Y B )
P roduc t s pec ific ation
x = 0.270
y = 0.281
x = 0.283
y = 0.297
x = 0.291
y = 0.306
x = 0.298
y = 0.314
x = 0.313
y = 0.329
x = 0.313
y = 0.329
x = 0.345
y = 0.357
X 100% > 75%
X 100% < 1.5 %
Y A
(x,y)
0.02 F G A
0.02
0.02
0.02
0.02 F G A
0.02
0.02 F G A
0.02
0.02
0.02
0.02
0.02
0.02 F G A
0.02
220SW 9 L CD 63