LG 37LB7DF, Руководство по обслуживанию

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Only for training and service purposes LGE Internal Use Only - 15 -
Before adjusting White-balance , the AV ADC
should be done
7. White Balance
*Test Equipment
8
Color Analyzer (CA-210/CH.9)
=> When you adjust LCD color temperature, on Color
analyzer (CA-210), you should use Channel 9 which
is Matrix compensated (White, Red, Green, Blue
revised) by CS-1000 and adjust in accordance with
White balance adjustment coordinate which is
specified on the next..
* Color temperature standards according to CSM and Module
CSM Plasma LCD
Cool 11,000k 11,000k
Medium 9,300k 9,300k
Warm 6,500k 6,500k
* White balance adjustment coordinate and color temperature
8
PC (for communication through RS-232C) => UART
Baud rate : 115200 bps
8
l Luminance Y AV : upper 200 cd/ß ≥ (Typ : 350 cd/m 2 ) =>
Applying to Cool
- Connecting picture of the measuring instrument (On
Automatic control )
Inside PATTERN is used when W/B is controlled. Connect
to auto controller or push control R/C IN-START => Enter
the mode of White-Balance, the pattern will come out.
* Auto adjustment Map(RS-232C)
*Auto-control interface and directions
1 Adjust in the place where the influx of light like floodlight
around is blocked. (illumination is less than 10ux).
2.1 In case of PDP: Measure and adjust after sticking the Color
Analyzer (CA-100+, CA-210 ) to the side of the module.
2.2 In case of LCD: Adhere closely the Color Analyzer ( CA-210
) to the module less than 10cm distance, keep it with the
surface of the Module and Color Analyzer’s Prove
vertically.(80~100°).
3 Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 15 minutes.
- In case of PDP, keep white pattern using inside pattern.
- In case of LCD, using ‘no signal’ or ‘full white pattern’ or the
others, check the back light on
Communication Type LT75A
Protocol Baud Rate Data bit Stop bit Parity
115200 8 1 None
Protocol Index Cmd 1 Cmd 2 Data Min Value Max Value
Setting R-Gain_Normal j a 00(00) 128(80)
G-Gain_Normal j b 00(00) 128(80)
B-Gain_Normal j c 00(00) 128(80)
R-Gain_Warm j d 00(00) 128(80)
G-Gain_Warm j e 00(00) 128(80)
B-Gain_Warm j f 00(00) 128(80)
R-Gain_Cool j g 00(00) 128(80)
G-Gain_Cool j h 00(00) 128(80)
B-Gain_Cool j i 00(00) 128(80)
R-Offset_Normal l j 00(00) 128(80)
G-Offset_Normal l k 00(00) 128(80)
B-Offset_Normal l l 00(00) 128(80)
R-Offset_Warm l m 00(00) 128(80)
Offset_Warm l n 00(00) 128(80)
B-Offset_Warm l o 00(00) 128(80)
R-Offset_Cool l p 00(00) 128(80)
G-Offset_Cool l q 00(00) 128(80)
B-Offset_Cool l r 00(00) 128(80)
Inside Pattern signal w b 00 W/B Adjust start
Inside Pattern signal w b 10 Inside Pattern
Inside Pattern signal w b ff W/B Adjust end