Color Temperature Standards According To Csm And Module(Tbd); Change Target Luminance And Range Of The Auto Adjustment W/B Equipment; White Balance Adjustment Coordinate And Color Temperature; Manual W/B Adjustment - LG 42PJ350 Service Manual

9-1. Color Temperature Standards According
to CSM and Module(TBD)
CSM
Cool
Medium
Warm
9-2. Change Target Luminance and Range
of the Auto Adjustment W/B Equipment
- 42PJ250-ZC(42T1), 42PJ350-ZA(42T1),
42PJ550-ZD(42T1), 42PJ650-ZA(42T1),
- 50PJ250-ZC(50T1), 50PJ350-ZA(50T1),
50PJ550-ZD(50T1), 50PJ650-ZA(50T1)
- 50PK250-ZA(50R1), 50PK350-ZB(50R1),
50PK550-ZE(50R1), 50PK750-ZA(50R1)
- 60PK250-ZA(60R1), 60PK550-ZE(60R1)
Target luminance
Range
9-3. White Balance Adjustment Coordinate
and Color Temperature
[ PC (for communication through RS-232C) ? UART Baud
rate : 115200 bps
9-4. Automatic W/B Adjustment
(1) Internal PATTERN should be used when W/B is adjusted.
Connect to auto controller like below.
Copyright ©2010 LG Electronics Inc. All rights reserved.
Only for training and service purposes
PLASMA
11000K
9300K
6500K
50
20
(2) Start White-Balance adjustment, then the full white window
pattern will appear on the screen.
(3) Adjust in the place where the influx of light like floodlight
around is blocked.
(illumination is less than 10ux).
(4) Measure and adjust after sticking the Color Analyzer (CA-
100+, CA210 ) to the side of the module.
Auto W/B Adjustment Map(RS-232C)
O
RS-232C COMMAND
[ CMD ID DATA ]
Wb 00 00
Wb 00 FF
RS-232C COMMAND
[CMD ID DATA]
Cool
R Gain jg
G Gain jh
B Gain ji
R Cut
50H3
G Cut
60H3
B C ut

9-5. Manual W/B Adjustment

(1) Execute the zero calibration of CA-100+ / CA-210.
(2) Press the 'ADJ' button on a service R/C and enter EZ
ASJUST by selecting '6. White Balance'.
(3) Then, 216 gray pattern will appear on the screen.
(4) Change the R/G/B-Gain as passing in 3 color coordinates
and temperatures, COOL, MEDIUM and WARM.
< Temperature: COOL >
- R-Cut / G-Cut / B-Cut is set to 64
- Control R-Gain and G-Gain.
- Each gain is limited to 192
< Temperature: MEDIUM >
- R-Cut / G-Cut / B-Cut is set to 64
- Control R-Gain and G-Gain.
- Each gain is limited to 192
< Temperature: WARM >
- R-Cut / G-Cut / B-Cut is set to 64
- Control G-Gain and B-Gain.
- Each gain is limited to 192
(5) Press 'EXIT' button on a service R/C
- 10 -
White Balance Start
White Balance End
CENTER
(DEFAULT)
Min
Med Warm Cool Med
Ja jd 00 192 192
Jb je 00 192 192
Jc jf 00 192 192
64
64
64
LGE Internal Use Only
MA X
Warm
192 255
192 255
192 255
64 64 128
64 64 128
64 64 128