22LN4000 (CHASSIS:LM91N) - LG TV Service Manual (repair manual). Page 9

Read LG 22LN4000 (CHASSIS:LM91N) Service Manual online

- 9 -
(1) RGB EDID Data
1) All data are HEXA
2) Adjustable Data : 
**: week 
***: year ex) when year 2008: input “12”
****: CHECK SUM (deferent along week, year)
5. Check of White Balance
RGB_Gains are fixed data for each model.
Insert D-sub jack (I2C) which is connected with PC 
for White Balance or equivalent device.
→  Total Assembly line should be check whether the 
color  coordinate(x,  y)  data  Refer  to  below  table 
were meet or not.
5.1. Required Equipment
■ Remote controller for checking W/B
■ Color Analyzer : CA-210 
■ CH: 14 (LCD MNT, Normal) → 22LN4000
■ PC (for communication through RGB) 
■ Pattern Generator (MSPG-925FS series)
5.2.  Connecting  diagram  of  equipment  for 
measuring(For Automatic Adjustment)
(Method 1, using IIC, You connect RGB Cable)
(Standard  color  coordinate  and  temperature  when  using  the 
CA210 equipment)
RGB_Gains are fixed data for each model 
* When doing Adjustment, Please make circumstance as below.
* W/B condition
- Ambient Humidity        : 20 % ~ 80 %
- Ambient Temperature  : 25 ± 5 °C
6. Function Check
6.1. Check display and sound 
■ Check input and Signal items. (cf. work instructions) 
1. TV
2. AV (CVBS)
3. RGB (PC : 1366 x 768 @ 60hz)(Display only)
4. HDMI
7. Preset CH writes condition
(1) AC on time on only one after assembled automatically
(2) CH recover on SVC OSD manually
Color
Temperature
Cool
13,000k °K x = 0.269 (±0.03)
y = 0.273 (±0.03)
<Test Signal>
RF/AV
Inner pattern
(216gray, 85IRE)
Medium 9,300k
°K x = 0.285 (±0.03)
y = 0.293 (±0.03)
Warm
6,500k
°K X=0.313 (±0.03)
Y=0.329 (±0.03)
Luminance
(cd/m2)
Cool
Min: 150
Typ : 200
<Test Signal>
(Full white,
100IRE)
Medium Min: 150
Typ : 200
Warm
Min: 150
Typ : 200
System Control 2
EDID Download 
 
Channel Recover   
UTT Reset 
 
Page of 27
Display

Click on the first or last page to see other 22LN4000 (CHASSIS:LM91N) service manuals if exist.