White Balance Adjustment - LG RU-44SZ63D Service Manual

(3) Using CH UP/DOWN key of the Remote Control, enter the
RED PATTERN.
(4) Check the RED Pattern to uniform. After checking unless
abnormality do OK.
<Fig. 17> TEST Pattern(RED Pattern)
13-4. NDC Adjustment
For compensation deviation of each Lamp uses NDC Mode.
Sees the Pattern and adjust left/right value using Channel
Key on Remote Control for Adjustment to be uniform color of
the White. (Lamp life compensation)
<Fig. 18> TEST Pattern
As temperature is different sensitivity, change angle of the
color wheel. At this time, the adjustment is done because
color may be changed.

14. White Balance Adjustment

(Day Light Mode) : R fixation
14-1. Required Test Equipment
CA210
14-2. Adjustment Sequence
(1) Install the equipment(CA210) be 5cm away from screen
center.
(2) Select White balance by pressing ADJ Mode Key on
Remote control.
ADJUSTMENT INSTRUCTIONS
(3) Warm(6500cK) : x = 0.313, y = 0.320
1) R Gain 109 fixation
2) Adjust white balance changing G, B gain.
3) Offset fixation R/G/B --> -1, -4, -1
(4) Medium(9300cK) : x = 0.283, y = 0.297
1) R Gain 111 fixation
2) Adjust white balance changing G, B gain.
3) Offset fixation R/G/B --> -4, -5, -1
(5) Cool(12000cK) : x = 0.275, y = 0.277
1) R Gain 112 fixation
2) Adjust white balance changing G, B gain.
3) Offset fixation R/G/B --> -6, -6, -1
* Reference : Gamma table -> 0
Spoke Func. -> 0
Lamp Type -> 1(OSR2/PHIL)
15. Main/Sub Contrast Adjustment
15-1. Preparation for Adjustment
Connect RF-NTSC Cable to rear terminal.
15-2. Adjustment Sequence
(1) Using the Remote Control, enter ADJUST to Contrast.
(Base value: MAIN-135, SUB-44)
(2) Select the adjustment item of MAIN/SUB using CH +/- key.
(3) Adjust the contrast of MAIN/SUB using VOL +/- key.
(4) The field and the letters(Number 6) are distinguished.
Adjust to be difference of the MAIN/SUB it is few most.
15-3. Overseas Factory Production
Contrast Adjustment Method
Adjust which it sees last prosecuting attorney time the screen
contrast difference.
(1) Do the same method as above method.
(2) Make the as same below pattern in VHF 6CH using RF
MODULATOR and PATTERN GENERATOR.
(3) Adjust to become dividing 15 and 16 Gray of Main/Sub
screen .
(4) Adjust to be identical Main/Sub contrast of MAX 16Gray.
(5) Make the adjustment pattern refer to <Fig. 19>.
<Fig. 19> 16Gray Scale/H Pattern
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