Service manual

4-39
4. Troubleshooting
4-4. White Balance - Calibration
4-4-1 White Balance -Calibration
1. Calibration
AV Calibration
Comp Calibration
PC Calibration
HDMI Calibration
4-4-2 White Balance - Adjustment
3. W/B
(low light) (hight light)
Sub Bright
R offset
G offset
B offset
Sub Contrast
R gain
G gain
B gain
(W/B adjustment Condition refer next page)
4-5. White Ratio (Balance) Adjustment
You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).1.
Since the adjustment value and the data value vary depending on the input source, you have to adjust these in CVBS, 2.
Component 1 and HDMI 1 modes.
The optimal values for each mode are configured by default. (Refer to Table 1, 2) 3.
It varies with Panel’s size and Specification.
- Equipment : CS-210
- Pattern: MIK K-7256 #92 "Flat W/B Pattern" as standard
- Use other equipment only after comparing the result with that of the Master equipment.
- Set Aging time : 60min
- Calibration and Manual setting for WB adjustment.
HDMI : Calibration at #24 Chessboard Pattern Manual adjustment #92 pattern (720p)
COMP: Calibration at #24 Chessboard Pattern
Manual adjustment at #92 pattern (720p)
CVBS: Calibration at #24 Chessboard Pattern
Manual adjustment at #92 pattern (PAL)
- If finishing in HDMI mode, adjustment coordinate is almost same in AV/COMP mode.
- White Balance Manual Adjustment
P-Mode
Adjustment Coordinate
x y Y (Luminance) T(K) + MPCD
CVBS
(PAL)
H/L 272 278
-
(Sub_CT:130)
12,000 (
·0)
L/L 272 278
12.6cd/m
2
(3.7 Ft)
12,000 (
·0)
COMP
(720P)
H/L 272 278
-
(Sub_CT:130)
12,000 (
·0)
L/L 272 278
13.0cd/m
2
(3.8 Ft)
12,000 (
·0)
HDMI
(720P)
H/L 272 278
-
(Sub_CT:130)
12,000 (
·0)
L/L 272 278
13.0cd/m
2
(3.8 Ft)
12,000 (
·0)
- Adjustment Specification
White Balance : High light (±1), Low light (±3)
Luminance : High light (Don’t care), Low light (±0.2 Ft/L)