KLV-MV32M1 - Sony TV Service Manual (repair manual). Page 12

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KLV-MV32M1 (CH)     2-3
4.
Check that the detection value of “PW_INPUT_CB” is
within the standard of following column.
Item
Standard
PW_INPUT_CB
Less than 384
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
Standard
PW_INPUT_CB
3936 
±
 24
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
Standard
PW_INPUT_CR
Adjustment value of PW_INPUT_CB
±
 320
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
Data
PICTURE_MODE
0 (Dynamic)
COLOR
32 
→ 25
DYNE_PICT
→ 0 (055)
DC_TRAN
→ 0 (055)
COLOR_TONE
0 (Cool)
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
Item
Setting Data
Initial Value
R_DRIVE
127
G_DRIVE
128 (Fix)
B_DRIVE
130
R_BKG
127
G_BKG
128 (Fix)
B_BKG
126
<High light adjustment value (for Cool)>
Set
Range
x
0.2670
13550K
y
0.2621
+0MPCD
Y
N/A
5.
Input 20 IRE gray full field signal in Video input.
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
Range
x
0.2727
13550K
y
0.2749
+0MPCD
Y
N/A
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
Data
PICTURE_MODE
0 (Dynamic)
COLOR
32 
→ 25
DYNE_PICT
→ 0 (055)
DC_TRAN
→ 0 (055)
COLOR_TONE
1 (Normal)
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
Item
Setting Data
Color Save
R_DRIVE
129
G_DRIVE
128 (Fix)
B_DRIVE
118
R_BKG
126
G_BKG
128 (Fix)
B_BKG
125
<High light adjustment value (for Normal)>
Set
Range
x
0.2838
9300K
y
0.2973
+8MPCD
Y
N/A
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
Range
x
0.2837
9300K
y
0.3005
+8MPCD
Y
N/A
6.
Repeat step 2~5 until it is in high and Low light adjusutment
value.
7.
Do “Color Save”.
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