White Ratio (Balance) Adjustment - Samsung B1930HD Service Manual

4-8-3 White Balance - Adjustment
(low light)
Sub Bright
3. W/B
R offset
G offset
B offset

4-9. White Ratio (Balance) Adjustment

1. You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).
2. Since the adjustment value and the data value vary depending on the input source, you have to
adjust these in AV, Component and HDMI modes.
3. The optimal values for each mode are configured by default. (Refer to Table 1, 2)
It varies with Panel's size and Specification.
- Equipment : CA210
- 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
COMP: Calibration at #24 Chessboard Pattern
AV: Calibration at #24 Chessboard Pattern
- If finishing in HDMI mode, adjustment coordinate is almost same in AV/COMP mode.
- White Balance Manual Adjustment
P-Mode
AV
(NTSC)
COMP
(720P)
HDMI
(720P)
- Adjustment Specification
White Balance : High light (±2), Low light (±3)
Luminance : High light (Don't care), Low light (±0.2 Ft/L)
(W/B adjustment Condition refer next page)
x y
H/L 281 288
L/L 281 288
H/L 281 288
L/L 281 288
H/L 281 288
L/L 281 288
(hight light)
Sub Contrast
R gain
G gain
B gain
Manual adjustment #92 pattern (720p)
Manual adjustment at #92 pattern (720p)
Manual adjustment at #92 pattern (NTSC)
Adjustment Coordinate
Y(Luminance)
26" - Sub_CT:165 Fix
32" - Sub_CT:150 Fix
Sub_Br:128 Fix
26" - Sub_CT:165 Fix
32" - Sub_CT:150 Fix
Sub_Br:128 Fix
26" - Sub_CT:165 Fix
32" - Sub_CT:150 Fix
Sub_Br:128 Fix
4. Troubleshooting
T(K) + MPCD
10,000(+0)
10,000(+0)
10,000(+0)
10,000(+0)
10,000(+0)
10,000(+0)
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