Service manual
– 38 –
KLV-26/32/40/46V300A
RM-GA008
3-4-4. White balance adjustment when color
temperature is “Warm 1”
1. Set up SREG_COLOR_TEMP = 2 (warm 1)
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 the 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_B06 ~
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
46"
40"32"26"
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
0.2898 0.2869 0.2890
<-
0.2991 0.2975 0.2943
0.1929 0.1914 0.1942
0.4479 0.4465 0.4449
0.2861 0.2880 0.2887
0.2929 0.2981 0.2917
0.1926 0.1920 0.1950
0.4436 0.4471 0.4432
0.2866 0.2885 0.2895
0.2939 0.2991 0.2996
0.1926 0.1919 0.1925
0.4443 0.4477 0.4482
0.2883 0.2895 0.2934
0.2974 0.2997 0.3018
0.1925 0.1924 0.1945
0.4467 0.4483 0.4501
0.2880
0.2911
0.1947
0.4428
0.2871
0.2903
0.1943
0.4421
0.2887
0.2976
0.1927
0.4469
0.2922
0.3003
0.1942
0.4490
30 76
50 128
80 204
x
y
u'
v'
x
y
u'
v'
x
y
u'
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x
y
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The target of White balance adjustment when color temperature is “Warm1”.
3-4-5. White balance adjustment when color
temperature is “Warm 2”
1. Set up SREG_COLOR_TEMP = 3 (Warm 2)
2. Set SREG_TEST_G_LEVEL = 204 (80 IRE)
3. Adjust values of SREG_WB_R (B) 05_OFST to be the chroma
in 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 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 below table
8. Set SREG_TEST_G_LEVEL = 51 (20 IRE)
9. Adjust values of SREG_WB_R (B) 02_OFST to be the chroma
in 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_B06 ~ 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
3-5. Panel Replacement
When replacing the panel please reset the gamma and white balance
before performing W/B for new panel.
3-6. Board Replacement
3-6-1. BG1 Board Replacement
When replacing the BG1 board please readjust the AD and readjust
the W/B.
Internal
signal
(IRE)
SREG
_Test_G
_LEVEL
SPEC target
46"
40"32"26"
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
0.3231 0.3191 0.3133
0.3253 0.3261 0.3130
0.2065 0.2034 0.2045
0.4679 0.4677 0.4596
0.3327 0.3238 0.3157
0.3494 0.3245 0.3090
0.2039 0.2074 0.2078
0.4818 0.4675 0.4577
0.3222 0.3326 0.3261
0.3273 0.3403 0.3283
0.2051 0.2073 0.2075
0.4688 0.4772 0.4699
0.3264 0.3136 0.3185
0.3377 0.3255 0.3182
0.2040 0.1998 0.2061
0.4749 0.4666 0.4633
0.3119
0.3097
0.2048
0.4575
0.3135
0.3069
0.2071
0.4561
0.3248
0.3271
0.2070
0.4691
0.3166
0.3161
0.2056
0.4618
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 “Warm2”.