Philips BDL5531EL/00, Service Manual

Page: 24 / 129

24 BDL5531EL LCD
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White balance
The picture color temperature shall be able to be chosen out of 5 modes 10000K, 9300K, 7500K, 6500K and
5000K. 10000K, 9300K, 7500K, 6500K and 5000K are factory setting (fixed color).
A/D converter calibration of the scalar shall be performed with 0V/0.730Vp-p black/white level signal to obtain
adequate dynamic range for video signal output level deviation. White balance adjustment and inspection shall be
carried out using 0.700Vp-p level signal.
Measurement condition – Measurement point : Center of screen
Measurement distances : 50cm
Measurement Angle : 90°
Measurement equipment – Color Analyzer : CA210 or Equivalent
Signal Generator : VG828 or Equivalent
Video Signal : White pattern
Color Temperature Table:
Mode x y Specification
10000K 0.279 0.292
r
0.015
9300K 0.283 0.297
r
0.015
7500K 0.299 0.315
r
0.015
6500K 0.313 0.329
r
0.015
5000K 0.321 0.337
r
0.015