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Model
26LN46XX 26LN4607 26LN460R 26LN460U 26LN467U (CHASSIS:LD33P)
Pages
28
Size
7.37 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
26ln46xx-26ln4607-26ln460r-26ln460u-26ln467u-chass.pdf
Date

LG 26LN46XX / 26LN4607 / 26LN460R / 26LN460U / 26LN467U (CHASSIS:LD33P) Service Manual ▷ View online

- 11 -
3.5.1. Check the method of CI+ Key value
(1) Check the method on Instart menu
(2) Check the method of RS232C Command 
1) Into the main ass’y mode(RS232: aa 00 00)
2) Check the key download for transmitted command
    (RS232: ci 00 10)
3) Result value
- Normally status for download : OKx
- Abnormally status for download : NGx
3.5.2. Check the method of CI+ key value(RS232)
1) Into the main ass’y mode(RS232: aa 00 00)
2) Check the mothed of CI+ key by command
    (RS232: ci 00 20)
3) Result value
i 01 OK 1d1852d21c1ed5dcx
3.6. WIFI MAC ADDRESS CHECK
(1) Using RS232 Command
(2) Check the menu on in-start
4. Manual Adjustment
*  ADC  adjustment  is  not  needed  because  of  OTP(Auto ADC 
adjustment)
4.1. EDID DATA
4.1.1. HDMI1
4.1.2. HDMI2
H-freq(kHz)
V-freq.(Hz)
Transmission
[A][I][][Set ID][][20][Cr]
[O][K][X] or [NG]
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
1
0
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
2
0
 
CI+ Key Value
HDMI1
HDMI2
HDMI1
76
E2
HDMI2
76
D2
- 12 -
4.2. White Balance Adjustment
4.2.1. Overview
▪ RGB Gains are fixed data for each model.
▪ Insert RS-232C Jack which is connected with PC for White    
→  Total Assembly  line  should  be  check  whether  the  color 
coordinate(x, y) data refer to below table were meet or not.
* Note :  x,y coordinates are drifted about 0.007 after 30 mins 
heat-run. So checking color coordinate within 5-min at 
total assembly line, consider x,y coordinates might be 
up to 0.007 than x,y target of each color temperature.
* Note : Manual W/B process using adjusts Remote control.
1) After enter Service Mode by pushing "ADJ" key,
2)  Enter  "White  Balance"  by  pushing  "►"  key  at  "White 
Balance".
*  When  doing Adjustment,  Please  make  circumstance  as 
below.
4.3. Magic Motion Remote control test
- Dogle Ready
(1)  Equipment  :  RF  Remote  control  for  test,  IR-KEY-Code 
Remote control for test
(2)  You  must  confirm  the  battery  power  of  RF-Remote  control 
before test(recommend that change the battery per every lot)
(3) Sequence (test)
1)  if  you  select  the  "Start(Wheel)"  key  on  the Adjustment 
remote control, you can pairing with the TV SET.
2)  You can check the cursor on the TV Screen, when select 
the "Wheel" key on the Adjustment remote control.
3)  You must remove the pairing with the TV Set by select 
"Mute" key on the Adjustment remote control
4.4. 3D function test
(Pattern Generator MSHG-600, MSPG-6100[Support HDMI1.4])
* HDMI mode NO. 872 , pattern No.83
(1)  Please input 3D test pattern like below.
(2) When 3D OSD appear automatically, then select OK key.
(3) Don't wear a 3D Glasses, check the picture like below.
Color 
Temperature
Cool
13,000
K X=0.270 (±0.03)
Y=0.271 (±0.03)
<Test Signal>
Inner pattern
(204gray,80IRE)
Medium
9,300
K X=0.285 (±0.03)
Y=0.293 (±0.03)
Warm
6,500
K X=0.313 (±0.03)
Y=0.329 (±0.03)
Luminance
(cd/m²)
Cool
Min : 80
K Typ : 160
<Test Signal>
Inner pattern
(204gray,80IRE)
Medium Min : 80
K Typ : 160
Warm
Min : 70
K Typ : 160
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option6
6. Country Group
7. Area Option
8. ADC Calibration
9. White Balance
10. 10 Point WB
11. Test Pattern
12 EDID D/L
13. Sub B/C
14. Touch Sensitivity Setting
15. Ext. Input Adjust
16. SPK Lipsync Adjust
17.SPDIF Lipsync Adjust
Whit Balance
Color Temp. 
 
R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Test-Pattern
Backlight
Reset 
      To Set
Cool
172
172
192
64
64
64
ON
100
- 13 -
4.5. HDMI ARC Function Inspection
(1) Test equipment
- Optic Receiver Speaker
- MSHG-600 (SW: 1220 ↑)
- HDMI Cable (for 1.4 version)
(2) Test method
1)  Insert the HDMI Cable to the HDMI ARC port from the 
master equipment (HDMI1)
2) Check the sound from the TV Set
3)  Check the Sound from the Speaker or using AV & Optic 
TEST program (It’s connected to MSHG-600)
* Remark:  Inspect  in  Power  Only  Mode  and  check  SW 
version in a master equipment
4.6. Wi-Fi Test
Step 1) Turn on TV
Step 2) Select Network Connection option in Network Menu.
Step 3) Select Start Connection button in Network Connection.
Step 4)  If the system finds any AP like blow PIC, it is working 
well.
4.7. LNB voltage and 22KHz tone check
(only for DVB-S/S2 model)
▪ Test method
(1) Set TV in Adj. mode using POWER ON.
(2) Connect cable between satellite ANT and test JIG.
(3)  Press Yellow key(ETC+SWAP) in Adj Remote control to 
make LNB on.
(4) Check LED light ‘ON’ at 18 V menu.
(5) Check LED light ‘ON’ at 22 KHz tone menu.
(6)  Press Blue key(ETC+PIP INPUT) in Adj Remote control 
to make LNB off.
(7) Check LED light ‘OFF’ at 18 V menu.
(8) Check LED light ‘OFF’ at 22 KHz tone menu.
▪ Test result
(1)  After  press  LNB  On  key,  ‘18  V  LED’  and  ‘22  KHz  tone 
LED’ should be ON. 
(2)  After press LNB OFF key, ‘18 V LED’ and ‘22 KHz tone 
LED’ should be OFF. 
- 14 -
4.8. Option selection per country
4.8.1. Overview
-  Option selection is only done for models in Non-EU 
4.8.2. Method
(1)  Press ADJ key on the Adj. R/C, then select Country Group 
Meun
(2)  Depending on destination, select Country Group Code 04 
or  Country  Group  EU  then  on  the  lower  Country  option, 
select  US,  CA,  MX.  Selection  is  done  using  +,  -  or  ►◄ 
key.
4.9. Tool Option selection
▪  Method : Press "ADJ" key on the Adjustment remote control, 
then select Tool option.
4.10. Ship-out mode check(In-stop)
▪  After final inspection, press "IN-STOP" key of the Adjustment 
remote control and check that the unit goes to Stand-by mode.
4.11.1. Method
-  Check that Power cord is fully inserted to the SET.
  (If loose, re-insert)
-  Unit  fully  inserted  Power  cord, Antenna  cable  and A/V 
arrive to the auto-check process. 
- Connect D-terminal to AV JACK TESTER
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST
- If NG, Buzzer will sound to inform the operator.
- If OK, changeover to I/P check automatically.
(Remove CORD, A/V form AV JACK BOX.)
- Perform I/P test
- If NG, Buzzer will sound to inform the operator.
-  If OK, Good lamp will lit up and the stopper will allow the 
pallet to move on to next process.
4.11.2. Checkpoint
▪ TEST voltage
- GND: 1.5 KV / min at 100 mA
- SIGNAL: 3 KV / min at 100 mA
▪ TEST time: 1 second
▪ TEST POINT
-  GND  TEST  =  POWER  CORD  GND  &  SIGNAL  CABLE 
METAL GND
NEUTRAL
▪ LEAKAGE CURRENT: At 0.5 mArms
5. Audio
Measurement condition:
(1) RF input: Mono, 1 KHz sine wave signal, 100 % Modulation
(2) CVBS, Component: 1 KHz sine wave signal 0.5 Vrms
(3) RGB PC: 1 KHz sine wave signal 0.7 Vrms
6. USB S/W Download(Service only)
(1) Put the USB Stick to the USB socket.
(2) Automatically detecting update file in USB Stick.
-  If your downloaded program version in USB Stick is Low, 
it didn't work. But your downloaded version is High, USB 
data is automatically detecting.
  (Download  Version  High  &  Power  only  mode,  Set  is 
automatically Download)
(3) Show the message "Copying files from memory".
(4) Updating is starting.
(5) Updating Completed, The TV will restart automatically.
(6)  If  your TV  is  turned  on,  check  your  updated  version  and 
Tool option. (explain the Tool option, next stage)
*  If downloading version is more high than your TV have, TV 
can lost all channel data. In this case, you have to channel 
recover. if all channel data is cleared, you didn’t have a DTV/
ATV test on production line.
* After downloading, have to adjust Tool Option again.
(1) Push "IN-START" key in service remote control.
(2) Select "Tool Option 1" and push "OK" key.
(3) Punch in the number. (Each model has their number)
No.
Item
Min
Typ Max
Unit
Remark
1.
Audio practical 
max Output, L/R
(Distortion=10% 
max Output)
9
10
12
W
EQ Off
AVL Off
Clear Voice Off
8.10 10.8 Vrms
2.
Speaker (8Ω
Impedance)
9
10
12
W
EQ Off
AVL Off
Clear Voice Off
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