Sharp LC-45GD5U Service Manual page 33

8. Adjustment of white ballance
(1) White ballance adjustment
Adjustment item
1 Adjustment
2 Auto adjustment
performance
Adjustment conditions
1 Apply the following settings to the set.
AV MODE: [STANDARD]
Aging Time: 60 Min.
Backlight: +12
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
adjustment.
◆ Multipoint adjustment mode (MSET0001)
◆ Adjustment value initialization (MSET0004)
◆ Standard value 6 (LEV60236)
◆ Standard value 5 (LEV60200)
◆ Standard value 4 (LEV60144)
◆ Standard value 3 (LEV60116)
◆ Standard value 2 (LEV60066)
◆ Standard value 1 (LEV60050)
◆ 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 values]
Optical measuring machine: [Minolta CA-210 ] (Focus on the center of
the screen.)
Standard value 6
Standard value 5
Standard value 4
Standard value 3
Standard value 2
Standard value 1
Adjustment procedure
Level Standard value Adjustment value
236 x = 0.295
y = 0.305
200 x = 0.295
y = 0.305
144 x = 0.295
y = 0.305
116 x = 0.295
y = 0.305
66 x = 0.295
y = 0.305
50 x = 0.295
y = 0.305
Note "Set the following before adjustment.
AV MODE: [STANDARD]
Monochro: ON
Aging Time: 60 Min."
33
LC-45GD5U
Tolerance
±0.0012 ±0.0020
±0.0012 ±0.0020
±0.0012 ±0.0020
±0.0012 ±0.0020
±0.0012 ±0.0020
±0.0012 ±0.0020
±0.0012 ±0.0020
±0.0012 ±0.0020
±0.0012 ±0.0020
±0.0012 ±0.0020
±0.0012 ±0.0035
±0.0012 ±0.0035