KLV-40S310A - Sony TV Service Manual (repair manual). Page 26

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3. Adjust values of SREG_WB_GAM_R (B) 05 to be the chroma

in below table

4. Set SREG_TEST_G_LEVEL = 128 (50 IRE)
5. Adjust values of SREG_WB_GAM_R (B) 04 to be the chroma

in below table

6. Set SREG_TEST_G_LEVEL = 76 (30 IRE)
7. Adjust values of SREG_WB_GAM_R (B) 03 to be the chroma

in below table

8. Set SREG_TEST_G_LEVEL = 51 (20 IRE)
9. Adjust values of SREG_WB_GAM_R (B) 02 to be chroma in

below table

10. Set SREG_WB_GAM_R( B) 01 as follows;

SREG_WB_GAM_R (B) 01
= SREG_WB_GAM_R (B) 02
+ [SREG_WB_GAM_R (B) 02-SREG_WB_GAM_R (B) 03]

11. Set SREG_WB_GAM_R06-07 and SREG_WB_GAM_B06 ~ 07

as follows;
[When ADJ data SREG_WB_GAM_B05 > 154]
[ADJ data SREG_WB_GAM_R05 > 128]
SREG_WB_GAM_R (B) 06 = SREG_WB_GAM_R (B) 05
- [SREG_WB_GAM_R (B) 05 - SREG_WB_GAM_R (B) 04] /2
SREG_WB_GAM_R (B) 07 = 128
[ADJ data SREG_WB_GAM_R05 = < 128]
SREG_WB_GAM_B06 = SREG_WB_GAM_B05
- [SREG_WB_GAM_B05-SREG_WB_GAM_B04] /2
SREG_WB_GAM_B07 = 128
SREG_WB_GAM_R06 = SREG_WB_GAM_R07
= SREG_WB_GAM_R05
[When ADJ data SREG_WB_GAM_B05 = < 154]
SREG_WB_GAM_R (B) 06 = SREG_WB_GAM_R (B) 07
= SREG_WB_GAM_R (B)_05

1. Set up SREG_COLOR_TEMP = 1 (Neutral)
2. Set SREG_TEST_G_LEVEL = 204 (80 IRE)
3. Adjust values of SREG_WB_R (B) 05_OFST to be the chroma

in the below table

4. Set SREG_TEST_G_LEVEL = 128 (50 IRE)
5. Adjust values of SREG_WB_R (B) 04_OFST to be the chroma

in the below table

6. Set SREG_TEST_G_LEVEL = 76 (30 IRE)
7. Adjust values of SREG_WB_R (B) 03_OFST to be the chroma

in the below table

8. Set SREG_TEST_G_LEVEL = 51 (20 IRE)
9. Adjust values of SREG_WB_R (B) 02_OFST to be chroma in

the below table

10. Set values of SREG_WB_GAM_R (B) 01_OFST as follows;

SREG_WB_R (B) 01_OFST
= SREG_WB_R (B) 02_OFST
+ [SREG_WB_R (B) 02_OFST-SREG_WB_R (B) 03_OFST]

11. Set values of SREG_WB_R06 ~ 07_OFST and

WB_B 06 ~ 07_OFST as follows;
SREG_WB_R (B) 07_OFST
= SREG_WB_R (B) 05_OFST
+ [SREG_WB_R (B) 05_OFST-SREG_WB_R (B) 04_OFST]
SREG_WB_R (B) 06_OFST
= SREG_WB_R (B) 05_OFST
+ [SREG_WB_R (B) 05_OFST-SREG_WB_R (B) 04_OFST] /2

12. Send ECS command: COLOR_SAVE

Internal

signal

(IRE)

SREG

_Test_G

_LEVEL

SPEC

target

S40"

20

51

0.5->0.7->1JND

.0014->.00196->.0028

0.5->0.7->1JND

.0014->.00196->.0028

0.5->0.7JND

0.0014->0.00196

0.3->0.5JND

0.0008->0.0014

0.2739
0.2779
0.1893
0.4322
0.2724
0.2662
0.1929
0.4241
0.2726
0.2705
0.1913
0.4270
0.2754
0.2754
0.1914
0.4308

30

76

50

128

80

204

x
y

u'
v'

x

y

u'
v'

x

y

u'
v'

x

y

u'
v'

x
y

u'
v'

The target of White balance adjustment when color temperature is “Cool”.

Internal

signal

(IRE)

SREG

_Test_G

_LEVEL

SPEC

target
S40"

20

51

0.5->0.7->1JND

.0014->.00196->.0028

0.5->0.7->1JND

.0014->.00196->.0028

0.5->0.7JND

0.0014->0.00196

0.3->0.5JND

0.0008->0.0014

0.2806
0.2790
0.1940
0.4339
0.2821
0.2823
0.1938
0.4363
0.2849
0.2846
0.1950
0.4382
0.2843
0.2875
0.1934
0.4399

30

76

50

128

80

204

x

y

u'
v'

x

y

u'
v'

x

y

u'
v'

x
y

u'
v'

The target of White balance adjustment when color temperature is “Neutral”.