Adjustment Of White Balance - Sharp LC-46D64U Service Manual

LC-42D64U/46D64U/52D64U

8. Adjustment of white balance

8.1. White balance adjustment
Adjustment item
1 Adjustment
2 Auto adjustment
performance
[Adjustment values]
Optical measuring machine: [Minolta CA-210] (Focus on the center of the screen.)
Level
Standard value 6 232
Standard value 5 200
Standard value 4 164
Standard value 3 132
Standard value 2 88
Standard value 1 44
Note
Adjustment conditions
Standard value
x = 0.272
y = 0.277
x = 0.272
y = 0.277
x = 0.272
y = 0.277
x = 0.272
y = 0.277
x = 0.272
y = 0.277
x = 0.272
y = 0.277
Set the following before adjustment.
AV MODE: [DYNAMIC]
Monochrome: ON
Aging Time: 60 Min.
Adjustment procedure
1) Apply the following settings to the set.
AV MODE: [DYNAMIC]
Aging Time: 60 Min.
Backlight: +16
2) Connect a white balance jig and the set.
Optical measuring machine: [Minolta CA-210]
PC
RS-232C communication cable
3) Use an RS-232C command to display the screen for multipoint adjust-
ment.
•Multipoint adjustment mode (MSET0001)
•Standard value 6 (WBI60928)
•Standard value 5 (WBI50800)
•Standard value 4 (WBI40656)
•Standard value 3 (WBI30528)
•Standard value 2 (WBI20352)
•Standard value 1 (WBI10176)
•Write setting (MSET0003)
[Adjustment]
1) Enter the monitor adjustment process mode.
2) Set the specified gradation for standard value 6. Set the strongest
color as the fixed color and adjust RGB by reducing to the standard
value.
3) Set the specified gradation for standard value 5. Set the correction
value of G [(default of standard value 5) x (G of standard value 6) /
(default of standard value 6)] and adjust RB to the standard value.
4) Set the specified gradation for standard value 4. Set the correction
value of G [(default of standard value 4) x (G of standard value 6) /
(default of standard value 6)] and adjust RB to the standard value.
5) Set the specified gradation for standard value 3. Set the correction
value of G [(default of standard value 3) x (G of standard value 6) /
(default of standard value 6)] and adjust RB to the standard value.
6) Set the specified gradation for standard value 2. Set the correction
value of G [(default of standard value 2) x (G of standard value 6) /
(default of standard value 6)] and adjust RB to the standard value.
7) Set the specified gradation for standard value 1. Set the correction
value of G [(default of standard value 1) x (G of standard value 6) /
(default of standard value 6)] and adjust RB to the standard value.
8) Write the adjustment values with MSET0003 command and turn off
AC power.
Adjustment value Tolerance
±0.001 ±0.002
±0.001 ±0.002
±0.001 ±0.002
±0.001 ±0.002
±0.001 ±0.002
±0.001 ±0.002
±0.002 ±0.004
±0.002 ±0.004
±0.003 ±0.006
±0.003 ±0.006
±0.003 ±0.006
±0.003 ±0.006
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