White Balance Adjustment - Mitsubishi Diamond Plus 93SB Service Manual

11. White Balance adjustment

(A) Setting
Enter Factory Mode,
Mode: No.12, Pattern: Full White.
Warm up 60 min.
Make External Degauss.
(B) Cut Off Adjustment
1. Select the color Mode 9300K.
2. Cut Off Adjustment : Video Signal Off(0.Vp-p),Bright Control set to Max., Adjust G. Bias at the
Brightness 3.4 ±0.7cd/m
3. 9300K (Select color Mode 9300)
Adjust R. Bias, B. Bias to make X=0.283, Y=0.297, with readjusting G. Bias to keep the brightness
between 3.4 ±0.7cd/m2 (1FL ±0.2FL).
(C) "9300K, 5000K MODE" White Balance Adjustment
1. 9300K (Select color Mode 9300K)
1) Video Signal off (0.Vp-p), Contrast set to Max, Adjust Brightness to 0.1cd/m
2) 50*50mm Green block Pattern, Adjust G Gain to Y=86cd/m
3) 50*50mm White block Pattern, Adjust R, B Gain to x=0.283, y=0.297.
4) Adjust R, G, B gain again to meet following spec.
x=0.283 ±0.010cd/m
9300K
y=0.297 ±0.010cd/m
Y=130 ±2cd/m
(1FL ±0.2FL).
2
2
2
2
4-6
2
.
2
.