Read Sony KLV-23HR1 Service Manual online
KLV-23HR1 (UC) 2-4
11. Adjust value of the AD_GAIN_D4_PB as follows with read-
ing 2 registers of sony_input_b_cb_min
and sony_input_ b_cb _max from the ECS.
12. Repeat step 2 to 11 until the detection set value in step 3 to 5,
7, 9 and 11 above are obtained.
13. Perform the Service Save.
2-6. Shift of each OFFSET value
Adjust the adjustment value to -3 against the following black
level adjustment register.
Reference
Adjustment
Adjustment
item
condition
register
sony_input_b_cb_min+sony_input_b_cb_max
230 ± 1 AD_OFFSET_D4_PB
2
sony_input_b_cb_min
230 -5
+0
sony_input_b_cb_max
230
-0
+5
2-7.White Balance Adjustment
• Set to PICTURE_MODE=2(Pro) and change to Register Set-
ting as follows.
• Input 22% All-gray signal into the video input.
Note: Perform the White Balance Adjustment with ECS.
2-7-1.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.
5. Input 70% gray signal (above Window pattern).
6. Adjust the Color Temperature (R_DRIVE, B_ DRIVE) to the
following value.
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.
Register
Save mode
ItemSetting
Setting
Picture Save PICTURE
100 (max)
BRIGHTNESS
50 (center)
COLOR_INDEX
1 (“Cool”)
DYNA_PICT
0 (off)
PW_HDPIC_ENABLE
0 (off)
GAMMA
0 (Pro standard)
PW_DCTRANS_ENABLE
0 (off)
U_BACKLIGHT
10 (max)
Default Save ECO_MODE
1 (standard)
Color Save
R_DRIVE
128 (initial value)
G_DRIVE
128 (initial value)
B_DRIVE
128 (initial value)
R_BKG
128 (initial value)
G_BKG
128 (initial value)
B_BKG
128 (initial value)
Item
Setting
x
0.275 ± 0.004
y
0.279 ± 0.004
Y
No object
Background Adjustment Standard
Item
Setting
x
0.264 ± 0.003
y
0.267 ± 0.004
Y
No object
High light Adjustment Standard
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