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WAX3
RM-ED009
3-3. Gamma Adjustment
The following adjustments are done via ECS.
Note: Before Gamma adjustment can begin the set needs 20
minutes aging with an ambient temperature between 22 to
28 degrees centigrade.
1. Set SREG_BL_MANU = 1.
2. Set SREG_MUTE_DISPLAY = 0.
3. Set SREG_BL_GAIN = 255.
4. Send ECS command OSD_OFF.
5. Send ECS command CSC_BYPASS_INIT_SET.
6. Wait for successful retrieval.
7. Set SREG_BRIGHT = 100(max).
8. Set SREG_ECO_MODE = 0(Standard).
9. Set SREG_TEST_G_LEVEL = 255.
10. Set SREG_GAMMA_EN = 0(OFF).
11. Measure ‘maximum brightness’ and ‘panel peak white color’ and
record x, y and Y data.
12. Confirm this data with the following table.
3-3-1. Preparation before Gamma Adjustment
Reference Item
Spec.
S-REG_AVE_VAL_B_AREA*
difference
±2
6. Read S-REG_TCD3_SATURATION via ECS.
7. Restore original value. SREG_NR = 2 (Mid).
8. Send ECS command ADJUST_LEVEL_SETTING_CLR.
1. Input SECAM colour bar 75%Y, 75%C via AV1 input.
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㧠 㧡 㧢 㧣
6+6.'
5KIPCNNGXGNCFLWUVOGPV
65/
3-2-9. C signal calibration1 adjustment for
SECAM video.
2. Send ECS_ADJUST_TCD3_HUE_V command.
3. Read S-REG_AVE_VAL_B_AREA0 via ECS
(READ_AREA = 0).
4. Read S-REG_AVE_VAL_B_AREA6 via ECS
(READ_AREA = 6).
5. Confirm that 8 bits of MSB of item number 3) and 4) are within
spec of the table below.
Spec A
Spec B
Spec C
32"
440cd/m^2
425cd/m^2
410cd/m^2
40"
440cd/m^2
425cd/m^2
410cd/m^2
46"
440cd/m^2
425cd/m^2
410cd/m^2
·
[Case A] if y => 0.298, check that the brightness is equal to or
greater than Spec A.
Set and save WB register A as follows :-
WB_GAM_G01 = 124
WB_GAM_G02 = 120
WB_GAM_G03 = 116
WB_GAM_G04 = 118
WB_GAM_G05 = 112
WB_GAM_G06 = 109
WB_GAM_G07 = 108
·
[Case B] if 0.293 =< Y < 0.298, check that the brightness is
equal to or greater than Spec B.
Set and save WB register B as follows :-
WB_GAM_G01 = 126
WB_GAM_G02 = 124
WB_GAM_G03 = 122
WB_GAM_G04 = 123
WB_GAM_G05 = 120
WB_GAM_G06 = 119
WB_GAM_G07 = 118
·
[Case C] if y < 0.293, check that the brightness is equal to or
greater than Spec C.
Set and save WB register C as follows :-
WB_GAM_G01 = 128
WB_GAM_G02 = 128
WB_GAM_G03 = 128
WB_GAM_G04 = 128
WB_GAM_G05 = 128
WB_GAM_G06 = 128
WB_GAM_G07 = 128
·
If the brightness is lower than the spec consider the panel as no
good.
1. Set SREG_BRIGHT = 50.
2. Set SREG_GAMMA_EN = 1 (On).
3. Set SREG_COL_MTRX_IDX_OFF = 4.
4. Set SREG_COL_MTRX_IDX_L = 4.
5. Set SREG_COL_MTRX_IDX_M = 4.
6. Set SREG_COL_MTRX_IDX_H = 4.
7. Set SREG_G_GAM_IDX_OFST = 15.
3-3-2. Set up mode for Gamma Adjustment
1. Set up SREG_TEST_G_LEVEL = 204.
2. Measure brightness A.
3. Set up SREG_TEST_G_LEVEL = 102.
4. Measure brightness B.
5. Set up SREG_MEASURE_GAM_01 = (brightness B/brightness
A)*10000.
6. Send Gamma_Tbl_Search_1 command.
7. Set up SREG_TEST_G_LEVEL = 153.
3-3-3. Set up Trident Internal SG and Brightness
measurement
measurement
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