White Balance Adjustment; White Balance Of Color Temperature "Cool; White Balance Of Color Temperature "Normal - Sony KLV-MV32M1 Service Manual

Lcd colour tv
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4.
Check that the detection value of "PW_INPUT_CB" is
within the standard of following column.
Item
PW_INPUT_CB
5.
Input blue full field. (Blue = 100 IRE)
6.
Send "ADJUST_C_LEVEL_VIDEO" command from ECS.
The C_LEVEL_CCP2_05 registration of the video range is
adjusted automatic by this command.
Adjustment value also is copied in the proper NVM area.
7.
Check that the detection value of "PW_INPUT_CB" is
within standard of following column.
Item
PW_INPUT_CB
8.
Input red full field. (Red = 100 IRE)
9.
Send "READ_PW_INPUT_CR" command from ECS.
10. Check that the detection value of "PW_INPUT_CR" is
within standard of following column.
Item
Adjustment value of PW_INPUT_CB
PW_INPUT_CR

2-3. WHITE BALANCE ADJUSTMENT

This adjustment shall be used ECS.

2-3-1. White balance of Color temperature "Cool"

1.
Select Video input (VIDEO3) and input video PAL 100%
white full field signal.
2.
Set following items.
Item
PICTURE_MODE
COLOR
DYNE_PICT
DC_TRAN
COLOR_TONE
Note:
DON'T DO ANY SAVE.
3.
Input 80 IRE gray full field signal in Video input.
4.
Adjust R_DRIVE, B_DRIVE until high light adjustment
value.
Format
Initial Value
<High light adjustment value (for Cool)>
Set
x
0.2670
y
0.2621
Y
5.
Input 20 IRE gray full field signal in Video input.
Standard
Less than 384
Standard
±
3936
24
Standard
±
320
Data
0 (Dynamic)
32 → 25
1 → 0 (055)
2 → 0 (055)
0 (Cool)
Item
Setting Data
R_DRIVE
127
G_DRIVE
128 (Fix)
B_DRIVE
130
R_BKG
127
G_BKG
128 (Fix)
B_BKG
126
Range
13550K
+0MPCD
N/A
6.
Adjust R_BKG, B_BKG until Low light adjustment value.
After adjustment,the biggest value register of BKG 3
registers (R_BKG,G_BKG,B_BKG) should be "128".
<Low light adjustment value (for Cool)>
Set
x
0.2727
y
0.2749
Y
7.
Repeat step 3~6 until it is high and Low light adjustment
value.
8.
Do "Color Save".
2-3-2. White balance of Color temperature
"Normal"
1.
Set following items.
Item
PICTURE_MODE
COLOR
DYNE_PICT
DC_TRAN
COLOR_TONE
Note:
DON'T DO ANY SAVE.
2.
Input 80 IRE gray full field signal in Video input.
3.
Adjust R_DRIVE, B_DRIVE until High light adjustment
value.
Format
Color Save
<High light adjustment value (for Normal)>
Set
x
0.2838
y
0.2973
Y
4.
Input 20 IRE gray full field signal in Video input.
5.
Adjust R_BKG, B_BKG until Low light adjustment value.
After adjustment,the biggest value register of BKG 3
registers (R_BKG,G_BKG,B_BKG) should be "128".
<Low light adjustment value (for Normal)>
Set
x
0.2837
y
0.3005
Y
6.
Repeat step 2~5 until it is in high and Low light adjusutment
value.
7.
Do "Color Save".
Range
13550K
+0MPCD
N/A
Data
0 (Dynamic)
32 → 25
1 → 0 (055)
2 → 0 (055)
1 (Normal)
Item
Setting Data
R_DRIVE
129
G_DRIVE
128 (Fix)
B_DRIVE
118
R_BKG
126
G_BKG
128 (Fix)
B_BKG
125
Range
9300K
+8MPCD
N/A
Range
9300K
+8MPCD
N/A
KLV-MV32M1 (CH)
2-3

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