DOWNLOAD LG 22LN45XX / 22LN4500 (CHASSIS:LJ31A) Service Manual ↓ Size: 5.88 MB | Pages: 30 in PDF or view online for FREE

- 9 -

This document is applied to LJ31A / LD31R chassis LED TV 

which  is  manufactured  in  TV(or  Monitor)  Factory  or  is 

produced on the basis of this data.

1)  The  adjustment  is  according  to  the  order  which  is 

designated  and  which  must  be  followed,  according  to  the 

plan which can be changed only on agreeing.

2) Power adjustment : Free Voltage.

3) Magnetic Field Condition: Nil.

4) Input signal Unit: Product Specification Standard.

5) Reserve after operation: Above 5 Minutes (Heat Run)

 Temperature : at 25 °C ± 5 °C

 Relative humidity : 65 % ± 10 %

 Input voltage : 110-240 V, 50/60 Hz

6)  Adjustment equipments: Color Analyzer(CA-210 or CA-110),  

DDC Adjustment Jig equipment, Service remote control.

7) Push The "IN STOP KEY" – For memory initialization

* APC - After Manual-Insult, executing APC

1)  Execute  ISP  program  “Mstar  ISP  Utility”  and  then  click 

“Config” tab.

2)  Set as below, and then click “Auto Detect” and check “OK” 

message.  If  display  “Error”,  Check  connect  computer,  jig, 

and set.

3)  Click  “Connect”  tab.  If  display  “Can’t”,  Check  connect 

computer, jig, and set.

4)  Click “Read” tab, and then load download file(XXXX.bin) by 

clicking “Read”.

5) Click “Auto” tab and set as below.

6) Click “Run”.

7) After downloading, check “OK” message.

1)  Make New folder named “LG_DTV” and put ISP file(*.epk) 

in the folder.

2) Put the USB Stick to the USB socket.

3) 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

4) Show the message "Copying files from memory"

5) Updating is starting.

6)  Updating  Completed,  The  Multi-vision  will  restart 

automatically.

7)  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 "ADJ" key in service remote control.

2. Select "Tool Option 1" and push "OK" key.

3. Punch in the number. (Each model has their number.)

4. Completed selecting Tool option.

Case1 : Software version up

1.  After downloading S/W by USB , TV set will reboot 

automatically.

2. Push “In-stop” key.

3. Push “Power on” key.

4. Function inspection

5. After function inspection, Push “In-stop” key.

Case2 : Function check at the assembly line

1.  When TV set is entering on the assembly line, Push 

“In-stop” key at first.

2. Push “Power on” key for turning it on.

→  If you push “Power on” key, TV set will recover 

channel information by itself.

3. After function inspection, Push “In-stop” key.

 

 

 

- 10 -

(1) Press "Power only" key of service remote control.

(2) Press the ADJ KEY on R/C and enter EZ ADJUST

(3)  Enter EDID D/L mode by pushing "►" key at "11. EDID D/L".

(4) EDID download is executed automatically.

(5) Press EXIT key on service remote control.

<Caution>

-  Never connect HDMI & D-sub Cable when download EDID.

-  Download HDMI

* Edid data and Model option download (USB)

(1) All models without 29MN33D(Product ID: 22984/HEXA: 59C8)

*(week), **(year), ***(Check sum) : Adjustable Data

: Screen size, 

: Color Characteristics

(1) All models(Product ID: 22986/HEXA:59CA)

*(week), **(year), ***(Check sum) : Adjustable Data 

**** (physical address): (HDMI : 10), ****(Check sum): (HDMI : CE)

: Screen size, 

: Color Characteristics

*Check Input and Signal items. (cf. work instructions) 

1) TV

2) AV (SCART/CVBS)

3) COMPONENT (480i)

4) RGB(PC : 1366 x 768 @ 60Hz)

5) HDMI(PC : 1366 x 768 @ 60Hz)

6) PC Audio In 

* Display and Sound check is executed by Remote control

<Caution>  Not to push the INSTOP key after completion if the 

function inspection.

(1) Press "Power on" key of service remote control.

(2)  Connect USB Port → USB to Serial Adapter (UC-232A) → 

RS-232C cable → PC(RS-232C port)

(3) Write Model Name & Serial Number by use USB Port.

(4)  Must check the serial number at the Customer Support 

menu. (Refer to below.)

1) Press "Power on" key of service remote control.

2) Connect RS232 Signal Cable to RS-232 Jack.

3) Write Model Name & Serial Number by use RS-232.

4)  Must check the serial number at the Diagnostics of SET UP 

menu. (Refer to below.)

(1)  Model Name & Serial Number D/L is using of scan equipment.

(2)  Setting  of  scan  equipment  operated  by  Manufacturing 

Technology Group.

(3)  Serial number D/L must be conformed when it is produced 

in production line, because serial number D/L is mandatory 

by D-book 4.0.

*Manual Download (Model Name and Serial Number)

If  the  TV  set  is  downloaded  By  OTA  or  Service  man, 

Sometimes model name or serial number is initialized. (Not 

always) There is impossible to download by bar code scan, 

so It need Manual download.

1)  Press the 'Instart' key of ADJ remote control.

2)  Go to the menu '6.Model Number D/L' like below photo.

3)  Input  the  Factory  model  name(ex  24LN4500)  or  Serial 

number like photo.

4)  Check  the  model  name  Instart  menu  →  Factory  name 

displayed (ex 24LN4500)

5)   Check  the  Diagnostics  (DTV  country  only)  →  Buyer 

model displayed (ex 24LN4500)

NO

Item

CMD 1 CMD 2 Data 0

Enter download 

MODE

Download 

‘Mode In’

A

A

0

0 When transfer the ‘Mode 

In’, Carry the command.

EDID data and 

Model option 

download

Download

A

E

00 10 Automatically download

(The use of a internal Data)

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 

 

►

14. Touch Sensitivity Setting
15. Ext. Input Adjust
16. SPK Lipsync Adjust
17.SPDIF Lipsync Adjust

EDID D/L

  HDMI 

OK

  RGB 

OK

Start

Reset

- 11 -

■ Check Input and Signal items. (cf. work instructions) 

1) TV

2) AV (SCART/CVBS)

3) COMPONENT (480i)

4) RGB(PC : 1366 x 768 @ 60Hz)

5) HDMI(PC : 1366 x 768 @ 60Hz)

6) PC Audio In 

* Display and Sound check is executed by Remote control

* Caution :  Not to push the INSTOP KEY after completion if 

the function inspection.

(1) Press “Power on” key of service remote control.

(2) Input RGB & TV(ATV or DTV) signal.

(3) Set Input mode to RGB.

(4) Press ‘PIP” key of ADJ remote control

(5) Check TV Video & Audio signal of Sub picture.

(1)  Insert  HDMI  cable  for  MHL  function  JIG  connected  to 

HDMI2 port of the SET.

(2)  Check  that  LED  of  JIG  is  green  light  and  check  that  set 

screen is correctly worked.

(3)  If NG situation or other HDMI jack connection, LED of JIG 

is red light and screen is not displayed.

- Equipment

(1) Color Analyzer: CA-210 (LED Module : CH 14)

(2)  Adj.  Computer(During  auto  adj.,  RS-232C  protocol  is 

needed)

(3) Adjust Remote control

RGB Gains are fixed data for each model.

Insert  RS-232C  Jack  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.

- Cool Panel

* 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.

MHL Function JIG(OK)

MHL Function JIG(NG)

Color 

Temperature

Cool

13,000

K X=0.276 (±0.03)

Y=0.275 (±0.03)

<Test Signal>

Inner pattern

(204gray,80IRE)

Medium

9,300

K X=0.290 (±0.03)

Y=0.298 (±0.03)

Warm

6,500

K X=0.318 (±0.03)

Y=0.334 (±0.03)

Luminance

(cd/m²)

Cool

Min : 80

K Typ : 110

<Test Signal>

Inner pattern

(204gray,80IRE)

Medium Min : 80

K Typ : 110

Warm

Min : 70

K Typ : 110

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

100
104
192

64
64
64

ON

100

- 12 -

■ Measurement Condition: 100-240V@ 50/60Hz

(1)  Set  Input  to  RGB-PC  and  connect  D-sub  cable  to  set  - 

RGB Mode. 

Set Input to HDMI(with Input Label set to PC) and connect 

HDMI cable to set - HDMI Mode

(2) Cut off H sync or V sync of signal.

(3) Check DPM operation refer to the below table.

■ HDMI DPM Operating condition

- Input Label: HDMI (PC&DVI Mode)

* Press the ‘Instart’ key of ADJ remote control.

(1) Check ‘Model Name’. 

(2) Check ‘S/W Version’ (Refer to the IC Ver. in the BOM)

(1) Check ‘Country Group’

(2) Check ‘Area Option’

(3) Check ‘Tool Option’ (Refer to the BOM Comments) 

(4) Check ‘Adjust ADC[Comp&RGB]’ is OK.

(5) Check ‘EDID[RGB&HDMI]’ is OK.

*  After check all, Press the 'EXIT' key of ADJ remote control to 

go out SVC menu.

*  After  all  function  test,  press  IN-STOP  key  by  SVC  Remote 

control. And make Outgoing Condition.

Operating Condition

Sync(H/V) Video LED(SET) Wattage(W)

Power S/W On Sleep mode - 

RGB, HDMI

Off/Off

Off

Amber

1

MHL Cable

HDMI & HDMI to DVI Cable 

DPM

X

O