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

Model
22LN45XX 22LN4500 (CHASSIS:LJ31A)
Pages
30
Size
5.88 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
22ln45xx-22ln4500-chassis-lj31a.pdf
Date

LG 22LN45XX / 22LN4500 (CHASSIS:LJ31A) Service Manual ▷ View online

- 7 -
5. Timing
5.1. RGB/HDMI (PC)
No.
Specification
Remark
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
1.
720*400
31.468
70.080
28.321
2.
640*480
31.469
59.940
25.175
3.
640*480
37.500
75.000
31.500
4.
800*600
37.879
60.317
40.000
5.
800*600
46.875
75.000
49.500
6.
1024*768
48.363
60.004
65.000
7.
1024*768
60.023
75.029
78.750
8.
1280*800
49.702
59.810
83.500
9.
1366*768
47.717
59.79
85.5
5.2. HDMI (DTV)
No.
Specification
Remark
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
1.
720*480
31.469 
31.5000
59.940 
60.000
27.000
27.030 
SDTV 480P
2.
720*576
31.250
50.000
27.864
SDTV 576P
3.
1280*720
37.500
50.000
74.250
HDTV 720P
4.
1280*720
44.960
45.000
59.940 
60.000
74.170
74.250
HDTV 720P
5.
1920*1080
33.720
33.750
59.940 
60.000
74.170
74.250
HDTV 1080I
6.
1920*1080
28.125
50.000
74.250
HDTV 1080I
7.
1920*1080
27.000
24.000
74.250
HDTV 1080P
8.
1920*1080
33.750
30.000
74.250
HDTV 1080P
9.
1920*1080
56.250
50.000
148.500
HDTV 1080P
10.
1920*1080
67.430
67.500
59.940
60.000
148.350
148.500
HDTV 1080P
- 8 -
5.3. Component
No.
Specification
Remark
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
1.
720*480
15.730
59.940
13.500
SDTV, DVD 480I(525I)
2.
720*480
15.750
60.000
13.514
SDTV, DVD 480I(525I)
3.
720*576
15.625
50.000
13.500
SDTV, DVD 576I(625I) 50Hz
4.
720*480
31.470
59.940
27.000
SDTV 480P
5.
720*480
31.500
60.000
27.027
SDTV 480P
6.
720*576
31.250
50.000
27.000
SDTV 576P 50Hz
7.
1280*720
44.960
59.940
74.176
HDTV 720P
8.
1280*720
45.000
60.000
74.250
HDTV 720P
9.
1280*720
37.500
50.000
74.250
HDTV 720P 50Hz
10.
1920*1080
33.720
59.940
74.176
HDTV 1080I
11.
1920*1080
33.750
60.000
74.250
HDTV 1080I
12.
1920*1080
28.125
50.000
74.250
HDTV 1080I 50Hz, 
13.
1920*1080
56.250
50.000
148.500
HDTV 1080P
14.
1920*1080
67.432
59.940
148.350
HDTV 1080P
15.
1920*1080
67.500
60.000
148.500
HDTV 1080P
- 9 -
ADJUSTMENT INSTRUCTION
1. Application Range
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.
2. Designation
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
3. Main PCB check process
* APC - After Manual-Insult, executing APC
* Boot file Download
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.
*
 USB DOWNLOAD(*.epk file download)
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.
 
(1) 
(3) 
(2)                    OK
Please Check the Speed :   
Use the speed under 
200KHz. 
 
(4) 
filexxx.bin
 
 
 
(6) 
(5) 
(7) ……….OK 
(5) 
- 10 -
3.1. EDID Process
3.1.1. EDID download
(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)
3.1.2. RGB EDID Data
(1) All models without 29MN33D(Product ID: 22984/HEXA: 59C8)
*(week), **(year), ***(Check sum) : Adjustable Data
: Screen size, 
: Color Characteristics
3.1.3. HDMI EDID Data
(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
3.2. Function Check
3.2.1. Check display and sound
*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.
4. Total Assembly line process
4.1. Tool option & ADC Check
(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.)
4.2. Model name & Serial number download
4.2.1. Model name & Serial number D/L
 
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.)
4.2.2. Method & notice
(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
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