Set Up Of Ad Calibration1 Adjustment For Video; Y Signal Calibration1 Adjustment For Pal; C Signal Calibration1 Adjustment For Pal; Preparation Before Gamma Adjustment - Sony KDL-40D340 Service Manual

www.freeservicemanuals.info
5. Read SREG_TCD3_SATURATION via ECS.
6. Restore the original value. SREG_NR = 4 (Auto).
7. Send ECS command ADJUST_LEVEL_SETTING_CLR.
3-2-4. Set up of AD calibration1 adjustment for
v i d e o .
1. Send ECS_ADJUST_LEVEL_SETTING_INIT command.
2. Set SREG_NR = 1 (Low), HREG_P4_CVD2_85[2:0] = 0 and
SREG_ADJ_COLOR_PAL = 5.
3. Set the following registration items.
Screen Size
SREG_TARGET_Y_V
SREG_TCD3_CONT_PAL_V
SREG_TCD3_SAT_PAL_V
SREG_TCD3_HUE_PAL_V
3-2-5. Y signal calibration1 adjustment for
PAL video.
1. Input PAL colour bar 75%Y, 75%C via AV1 input.
2. Send ECS_ADJUST_TCD3_CONT_V command.
3. Read the value of SREG:APL_LUMA via ECS. Confirming that
the value is within spec of the table below.
AD-Adjust Video Spec.
Reference register name
SREG_APL_LUMA
3-2-6. C signal calibration1 adjustment for
PAL video.
1. Input PAL colour bar 75%Y, 75%C via AV1 input.
2. Send ECS_ADJUST_TCD3_HUE_V command.
3. Read SREG_AVE_VAL_B_AREA0 via ECS
(READ_AREA = 0).
40" 46"
165 165
128 128
128 128
128 128
Spec.
SREG_TARGET_Y_V±2
- 20 -
Digitized in Heiloo, Holland.
4. Read SREG_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.
Reference Item
SREG_AVE_VAL_B_AREA*
difference
6. Restore original value. SREG_NR = 2 (Mid).
7. Send ECS command ADJUST_LEVEL_SETTING_CLR.
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.

3-3-1. Preparation before Gamma Adjustment

1. Set SREG_BL_MANU<2> = 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<6> = 0(OFF).
11. Measure 'maximum brightness'.
12. Confirm 'maximum brightness' dataover 410cd/m^2.
If the brightness is lower than 410cd/m^2 consider the
panel as no good.

3-3-2. Set up mode for Gamma Adjustment

1. Set SREG_BRIGHT = 50.
2. Set SREG_GAMMA_EN<6> = 1 (On).
3. Set SREG_COL_MTRX_IDX_OFF = 4.
4. Set SREG_G_GAM_IDX_OFST = 15.

3-3-3. Set up Trident Internal SG and Brightness

measurement

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 the ECS command: GAMMA_TBL_SEARCH_1.
7. Set up SREG_TEST_G_LEVEL = 153.
8. Measure brightness C.
9. Set up SREG_MEASURE_GAM_02 = (brightness C/brightness
10. Send the ECS command: GAMMA_TBL_SEARCH_02.
5/3/15
WAX3F
RM-ED009
Spec.
±2
A)*10000.