White Balance Adjustment; White Balance Adjustment Of Color; Temperature "Normal; Temperature "Cool - Sony KLV-HG26M1 Service Manual

2-2. White Balance Adjustment

2-2-1. White Balance of color temperature
"warm"
1. After setting PICTURE_MODE=2(Pro) set data as follows.
<Confirmation of setting data>
Save system
Picture Save PICTURE =100 (Max)
BRIGHTNESS=50 (Center)
COLOR_INDEX=1 ("High")
DYNA_PICT=0
DC_TRAN=0
GAMMA=0
U_BACKLIGHT=10 (Max)
Default Save ECO_MODE=1 (Standard)
Color Save R_DRIVE=122
G_DRIVE=128
B_DRIVE=140
R_BKG=126
G_BKG=128
B_BKG=116
2. Input 70 IRE gray full field signal in video input. (AV1)
3. Adjust R_DRIVE, B_DRIVE until high light adjustment
value.
<high light adjustment value>
KLV-21SG2
x 0.265
y 0.269
Y –
4. Input 20 IRE gray full field signal in video 1 input .
5. Adjust R_BKG, B_BKG until low light adjustment value.
<back ground adjustment value >
KLV-21SG2
x 0.267
y 0.274
Y –
6. Repeat step 2-5 until it is high and low light adjustment value.
7. Do "Color Save"

2-2-2. White Balance Adjustment of color

temperature "normal"

1. Set the COLOR_INDEX to 2 (Normal).
2. Set the R_DRIVE, G_DRIVE, B_DRIVE, R_BKG, G_BKG,
and B_BKG to the following calculated value.
Setting of Color Temperature "Normal"
Item
R_DRIVE Adjusted value of Color Temperature "Warm" × 1.011
G_DRIVE Adjusted value of Color Temperature "Warm" × 1.000
B_DRIVE Adjusted value of Color Temperature "Warm" × 0.941
Adjusted value of Color Temperature "Warm" × 1.013
R_BKG
Adjusted value of Color Temperature "Warm" × 1.000
G_BKG
Adjusted value of Color Temperature "Warm" × 0.923
B_BKG
3. Perform the Color Save.
Item
range
0.4JND
0.4JND
N/A
range
0.9JND
0.9JND
N/A
Formula 21
2-2-3. White Balance Adjustment of color

temperature "cool"

1. Set the COLOR_INDEX to 3 (Cool).
2. Set the R_DRIVE, G_DRIVE, B_DRIVE, R_BKG, G_BKG,
and B_BKG to the following calculated value.
Setting of Color Temperature "Cool"
Item
R_DRIVE Adjusted value of Color Temperature "Warm" × 1.081
G_DRIVE Adjusted value of Color Temperature "Warm" × 1.000
B_DRIVE Adjusted value of Color Temperature "Warm" × 0.851
Adjusted value of Color Temperature "Warm" × 0.949
R_BKG
Adjusted value of Color Temperature "Warm" × 1.000
G_BKG
Adjusted value of Color Temperature "Warm" × 1.013
B_BKG
3. Perform the Color Save.
4. After the adjustment, reset unsaved items (not included the
Color Save) to initial value.
KLV-HG26M1/SG21M1(CH)
Formula 21
2-3E