DOWNLOAD LG 55LEX8-SA (CHASSIS:LJ03S) Service Manual ↓ Size: 7.58 MB | Pages: 88 in PDF or view online for FREE

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Summary : Adjustment component 480i/1080i and RGB
1080p is Gain and Black level setting at Analog to Digital
converter, and compensate the RGB deviation

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Using instrument   

• Adjustment remocon, 801GF(802B, 802F, 802R) or

MSPG925FA pattern generator (It can output 480i/1080i
horizontal 100% color bar pattern signal, and its output
level must setting 0.7V±0.1V p-p correctly)  

<Pic.4 Adjustment pattern : 480i / 1080p 60Hz Pattern > 

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You must make it sure its resolution and pattern cause
every instrument can have different setting 

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Adjustment method 480i Comp1, Adjust 1080p Comp1/RGB
(Factory adjustment) 

• ADC 480i Component1 adjustment 

- Check connection of Component1  
- MSPG-925FA ->  Model: 209, Pattern 65 

• Set Component 480i mode and 100% Horizontal Color

Bar Pattern(HozTV31Bar), then set TV set to
Component1 mode and its screen to “NORMAL”  

• ADC 1080p Component1 / RGB adjustment 

- Check connection both of Component1 and RGB 
- MSPG-925FA ->  Model: 225, Pattern 65 

• Set Component 1080p mode and 100% Horizontal Color

Bar Pattern(HozTV31Bar), then set TV set to
Component1 mode and its screen to “NORMAL”  

• After get each the signal, wait more a second and enter

the  “IN-START” with press IN-START key of Service
remocon. After then select “7. External ADC” with
navigator button and press “Enter”.   

• After Then Press key of Service remocon “Right

Arrow(VOL+)”  

• You can see “ADC Component1 Success”  
• Component1 1080p, RGB 1080p Adjust is same method.  
• Component 1080p Adjustment in Component1 input

mode  

• RGB 1080p adjustment in RGB input mode 
• If you success RGB 1080p Adjust. You can see “ADC

RGB-DTV Success” 

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Summary 

• It is established in VESA, for communication between PC

and Monitor without order from user for building user
condition. It helps to make easily use realize “Plug and
Play” function.  

• For EDID data write, we use DDC2B protocol. 

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Auto Download 

• After enter Service Mode by pushing “ADJ” key, 
• Enter EDID D/L mode. 
• Enter “START” by pushing “OK” key.  

=> Caution : - Never connect HDMI & D-sub Cable when

the user downloading . 

- Use the proper cables below for EDID

Writing. 

§ Edid data and Model option download (RS232) 

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Write HDMI EDID data  

• Using instruments 

- Jig. (PC Serial to D-Sub connection) for PC, DDC

adjustment.  

- S/W for DDC recording (EDID data write and read) 
- D-sub jack 
- Additional HDMI cable connection Jig. 

• Preparing and setting.  

- Set instruments and Jig. Like pic.5), then turn on PC and

Jig.  

- Operate DDC write S/W (EDID write & read) 
- It will operate in the DOS mode. 

Pic.3) For write EDID data, setting Jig and another instruments. 

• EDID data for LJ03R Chassis (Model name = LG TV) 

- HDMI-1 EDID table (0x04, 0x00) 

- HDMI-2 EDID table (0x04, 0xF0) 

- HDMI-3 EDID table (0x04, 0xE0) 

- HDMI-4 EDID table (0x04, 0xD0) 

- Analog (RGB) EDID table (0x1D) 

PC

VSC

B/D

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Using Instruments 

• Color Analyzer: CA-210 (CH 9)  

- Using LCD color temperature, Color Analyzer (CA-210)

must use CH 9, which Matrix compensated (White, Red,
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one.  

• Auto-adjustment Equipment (It needs when Auto-

adjustment  – It is availed communicate with RS-232C :
Baud rate: 115200)  

• Video Signal Generator MSPG-925F 720p, 216Gray

(Model: 217, Pattern 78) 

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Connection Diagram (Auto Adjustment)  

• Using Inner Pattern 

• Using HDMI input 

<Pic.5 Connection Diagram for Adjustment White balance> 

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White Balance Adjustment   

If you can’t adjust with inner pattern, then you can adjust it
using HDMI pattern. You can select option at “Ez-Adjust
Menu  – 7. White Balance” there items “NONE, INNER,
HDMI”. It is normally setting at inner basically. If you can’t
adjust using inner pattern you can select HDMI item, and
you can adjust. 

In manual Adjust case, if you press ADJ button of service
remocon, and enter “Ez-Adjust Menu – 7. White Balance”,
then automatically inner pattern operates. (In case of
“Inner” originally “Test-Pattern. On” will be selected in The
“Test-Pattern. On/Off”.  

• Connect all cables and equipments like Pic.5) 
• Set Baud Rate of RS-232C to 115200. It may set 115200

orignally. 

• Connect RS-232C cable to set 
• Connect HDMI cable to set 

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RS-232C Command (Commonly apply)     

• “wb 00 00”: Start Auto-adjustment of white balance. 
• “wb 00 10”: Start Gain Adjustment (Inner pattern)  
• “jb 00 c0” :  
• …
• “wb 00 1f”: End of Adjustment 

* If it needs, offset adjustment (wb 00 20-start, wb 00 2f-

end) 

• “wb 00 ff”: End of white balance adjustment (inner pattern

disappear) 

C A -100+

C O L O R

A N A L Y Z E R

T Y P E ; C A -100+

F u l l W h i t e P at t er n

R S-232C

O

• When Color temperature (White balance) Adjustment

(Automatically) 

- Press  “Power only key” of service remocon and operate

automatically adjustment. 

- Set BaudRate to 115200. 

• If it needs, then adjustment “Offset”. 

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White Balance Adjustment (Manual adjustment)    

• Test Equipment: CA-210 

- Using LCD color temperature, Color Analyzer (CA-210)

must use CH 9, which Matrix compensated (White, Red,
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one.  

• Manual adjustment sequence is like bellowed one.  

- Turn  to  “Ez-Adjust” mode with press ADJ button of

service remocon. 

- Select  “10.Test Pattern” with CH+/- button and press

enter. Then set will go on Heat-run mode. Over 30
minutes set let on Heat-run mode. 

- Let CA-210 to zero calibration and must has gap more

10cm from center of LCD module when adjustment.  

- Press  “ADJ” button of service remocon and select

“7.White-Balance” in “Ez-Adjust” then press “ 

G

” button

of navigation key.

(When press “ 

G 

” button then set will go to full white

mode)

- Adjust at three mode (Cool, Medium, Warm) 
- If “cool” mode 

Let B-Gain to 192 and R, G, B-Cut to 64 and then
control R, G gain adjustment High Light adjustment. 

- If “Medium” and “Warm” mode 

Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment. 

- All of the three mode 

Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment. 

- With volume button (+/-) you can adjust.  
- After all adjustment finished, with Enter (

A 

key) turn to

Ez-Adjust mode. Then with ADJ button, exit from
adjustment mode 

Attachment: White Balance adjustment coordination and

color temperature. 

• Using CS-1000 Equipment.   

- COOL : T=11000K, 

∆

uv=0.000, x=0.276 y=0.283  

- MEDIUM  : T=9300K, 

∆

uv=0.000, x=0.285 y=0.293  

- WARM  : T=6500K, 

∆

uv=0.000, x=0.313 y=0.329  

• Using CA-210 Equipment. (9 CH)     

- Contrast value: 216 Gray  

- White Balance adjustment coordination and color

temperature  for Edge(IOP) LED (LJ03D/E) 

-White Balance adjustment table for Edge (IOP) LED

(LJ03D/E/R-for LX6500) 

-LGD 3D IOP LED (for LX9500) 

- 16 -

Cool 

Medium 

Warm 

X 

y 

x 

y 

x 

y 

GP2  

Aging time 

(Min) 

269 

273 

285 

293 

313 

329 

1 

0-2 

280 291 296 311 319 340 

2 

3-5 

278 288 294 308 317 338 

3 

6-9 

276 285 292 305 315 335 

4  10-19 

274 282 290 302 313 332 

5  20-35 

273 279 289 299 312 329 

6  36-49 

270 276 287 296 310 326 

7  50-79 

269 273 286 293 308 323 

8  Over 

80  269 273 285 293 308 323 

Aging time 

Cool 

Medium 

Warm 

(Min) 

x 

y 

x 

y 

x 

y 

GP2  

 

269 

273 

285 

293 

313 

329 

1  0-2  287 301 303 321 326 351 

2  3-5  286 299 302 319 325 349 

3  6-9  285 297 301 317 324 347 

4  10-19 283 295 299 315 322 345 

5  20-35 281 291 297 311 320 341 

6  36-49 277 285 293 305 316 335 

7  50-79 273 281 289 301 312 331 

8 80-149 

271 277 287 297 310 327 

9 

Over 

150 

269 273 285 293 308 323