White Balance Adjustment - Sony KLV-15SR1 Service Manual

2-3.White Balance Adjustment

• Set to PICTURE_MODE=2(Pro) and change to Register Set-
ting as follows.
Register Save mode
Setting
Picture Save PICTURE
BRIGHTNESS
COLOR_INDEX
DYNA_PICT
PW_HDPIC_ENABLE
GAMMA
PW_DCTRANS_ENABLE
U_BACKLIGHT
Default Save ECO_MODE
Color Save R_DRIVE
G_DRIVE
B_DRIVE
R_BKG
G_BKG
B_BKG
• Input 22% All-gray signal into the video input.
Note: Perform the White Balance Adjustment with ECS.
2-3-1.White Balance Adjustment of color temperature
"Cool"
1. Set to PICTURE_MODE=2(Pro) and change to Register Set-
ting as follows.
2. Show 40%x25% Window pattern into video input.
3. Input 22% gray signal (above Window pattern).
4. Adjust the Color Temperature (R_BKG, B_BKG) to the fol-
lowing value.
Background Adjustment Standard
Item Setting
x 0.264 ± 0.0055
y 0.279 ± 0.0055
Y No object
5. Input 70% gray signal (above Window pattern).
6. Adjust the Color Temperature (R_DRIVE, B_ DRIVE) to the
following value.
High light Adjustment Standard
Item Setting
x 0.270 ± 0.003
y 0.274 ± 0.004
Y No object
7. Repeat step 1 to 4 until the detection set value in step 4 and 6
above are obtained.
8. When unadjusted, set G_DRIVE to 124 and retry from step 1.
9. Perform the Color Save.
2-3-2. White Balance Adjustment of color temperature
1. Set the COLOR_INDEX to 2 (Natural).
2. Set the R_DRIVE, G_DRIVE, B_DRIVE, R_BKG, G_BKG,
ItemSetting
100 (max)
50 (center)
1 ("Cool")
0 (off)
0 (off)
0 (Pro standard)
0 (off)
10 (max)
1 (standard)
3. Perform the Color Save.
128 (initial value)
128 (initial value)
2-3-3.White Balance Adjustment of color temperature
128 (initial value)
128 (initial value)
128 (initial value)
1. Set the COLOR_INDEX to 3 (Warm).
128 (initial value)
2. Set the R_DRIVE, G_DRIVE, B_DRIVE, R_BKG, G_BKG,
3. Perform the Color Save.
4. After the adjustment, reset unsaved items (not included the
"Natural"
and B_BKG to the following calculated value.
Setting of Color Temperature "Natural"
Item Formula 23
R_DRIVE Adjusted value of Color Temperature "Cool" x 1.053
G_DRIVE Adjusted value of Color Temperature "Cool"
B_DRIVE Adjusted value of Color Temperature "Cool" x 0.889
R_BKG Adjusted value of Color Temperature "Cool" x 0.984
G_BKG Adjusted value of Color Temperature "Cool"
B_BKG Adjusted value of Color Temperature "Cool" x 1.024
"Warm"
and B_BKG to the following calculated value.
Setting of Color Temperature "Warm"
Item Formula 23
R_DRIVE Adjusted value of Color Temperature "Cool" x 1.079
G_DRIVE Adjusted value of Color Temperature "Cool"
B_DRIVE Adjusted value of Color Temperature "Cool" x 0.810
R_BKG Adjusted value of Color Temperature "Cool" x 0.984
G_BKG Adjusted value of Color Temperature "Cool"
B_BKG Adjusted value of Color Temperature "Cool" x 1.032
Color Save) to initial value.
KLV-15SR1 (UC) 2-2E