Samsung LA37C630 Series, Service Manual

Page: 88 / 94

4-31
4. Troubleshooting
4-4-3 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 2.
adjust these in CVBS, 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 : Time #6 720P, Pattern #24 Chessboard Calibration Manual adjustment #92 pattern (720p)
COMP: Time #6 720P, Pattern #24 Chessboard Calibration Manual adjustment at #92 pattern (720p)
CVBS: Time #2 PAL, Pattern #24 Chessboard Calibration Manual adjustment at #92 pattern (NTSC)
PC: Time #21 1024*768, Pattern #24 Chessboard Calibration Manual adjustment at #92 pattern (NTSC)
- If finishing in HDMI mode, adjustment coordinate is almost same in AV/COMP mode.
- White Balance Manual Adjustment
CA-210
x y Y(L) T(K) + MPCD
CVBS
(NTSC)
H/L 272 278
-
(Sub_CT:140)
12,000 (+/- 0)
L/L 272 278
19.7cd/m
2
( 5.8 Ft - Sub_BR:128)
12,000 (+/- 0)
COMP
(720P)
H/L 272 278
-
(Sub_CT:140)
12,000 (+/- 0)
L/L 272 278
19.7cd/m
2
(3.5 Ft - Sub_BR:128)
12,000 (+/- 0)
HDMI
(720P)
H/L 272 278
-
(Sub_CT:140)
12,000 (+/- 0)
L/L 272 278
19.7cd/m
2
(5.8 Ft - Sub_BR:128)
12,000 (+/- 0)
- Adjustment Specification
White Balance : High light (
±
3), Low light (
±
5)
Luminance : High light (
±0.1Ft/L
), Low light (
±0.1Ft/L
)