DOWNLOAD LG 42LE5500 / 42LE5550 (CHASSIS:LJ03D) Service Manual ↓ Size: 13.1 MB | Pages: 52 in PDF or view online for FREE

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”. 

A

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) 

- 17 -

1) Turn on TV 

2) Press EYE key of Adj. R/C 
3) Cover the Eye Q II sensor on the front of the using your

hand and wait for 6 seconds 

4) Confirm that R/G/B value is lower than 10 of the “Raw Data

(Sensor data, Back lignt )” .  If after 6 seconds, R/G/B value
is not lower than 10, replace Eye Q II sensor 

5) Remove your hand from the Eye Q II sensor and wait for 6

seconds  

6) Confirm that “ok” pop up.  

If change is not seen, replace Eye Q II sensor 

• No Need. 

Press In-Start button of Service Remocon then set the
“4.Baud Rate” to 115200. Then check RS-232C control and  

page.)  

• Press “In-Start” button of Service Remocon, then enter the
“Option” Menu with “PIP CH-“ Button  
• Select one of these three (USA, CANADA, MEXICO)
defends on its market using “Vol. +/-“button. 

A

Check the connection between set and power cord 

A

Fully connected (Between set and power cord) set enter the
Auto-test sequence. 

A

Connect D-Jack AV jack test equipment. 

A

Turn on Auto-controller(GWS103-4) 

A

Start Auto GND test. 

A

If its result is NG, then notice with buzzer. 

A

If its result is OK, then automatically it turns to ESD Test. 

A

Operate ESD test 

A

If its result is NG, then notice with buzzer. 

A

If its result is OK, then process next steps. Notice it with
Good lamp and STOPER Down.Check Items. 

A

Test Voltage  

• GND: 1.5KV/min at 100mA 
• Signal: 3KV/min at 100mA 

A

Test time: just 1 second. 

A

Test point 

• GND test: Test between Power cord GND and Signal

cable metal GND.  

• ESD test: Test between Power cord GND and Live and

neutral. 

A

Leakage current: Set to 0.5mA(rms) 

In case of POWER ONLY, System color is operated multi
system 
In case of IN STOP, System color is operated default system
(PAN-M) 

- 18 -

A

R-Gain adjustment Value (default  128)  

A

G-Gain adjustment Value (default  128) 

A

B-Gain adjustment Value (default  128) 

A

R-Offset adjustment Value (default  128) 

A

G-Offset adjustment Value (default  128) 

A

B-Offset adjustment Value (default  128) 

- 19 -

- 20 -

300

200

LV

1

LV

2

830

400

540

880

810

800

310

A2

A5

A21

A10

120

500

580

51

1

510

820

530

910

900

920

710

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by       in the Schematic Diagram and EXPLODED VIEW. 
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. 
Do not modify the original design without permission of manufacturer.