DOWNLOAD LG 55LM8600 (CHASSIS:LJ23E) Service Manual ↓ Size: 9.71 MB | Pages: 113 in PDF or view online for FREE

Model
55LM8600 (CHASSIS:LJ23E)
Pages
113
Size
9.71 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lm8600-chassis-lj23e.pdf
Date

LG 55LM8600 (CHASSIS:LJ23E) Service Manual ▷ View online

- 13 -
ADJUSTMENT INSTRUCTION
1. Application Range
This  spec  sheet  is  applied  all  of  the  LCD  TV  with  LJ23E/J 
chassis.
2. Specification
(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 ºC ±5 ºC
     Relative humidity : 65 ±10%
     Input voltage : 100~220V, 50/60Hz
(6)  Adjustment  equipments  :  Color  Analyzer  (CA-210  or 
CA-110), SVC remote controller
(7) Push The “IN STOP KEY” – For memory initialization
3. Main PCB check process 
3.1. PCB Assembly Adjustment
(1) ADC adjustment: Component 480i, 1080p / RGB-PC 1080p
(2) EDID downloads for HDMI and RGB-PC
(3) MAC Address / ESN / Widevine Download
 ※ Remark
-  Above  adjustment  items  can  be  also  performed  in  Final 
Assembly  if  needed. Adjustment  items  in  both  PCBA  and 
final assembly stages can be checked by using the INSTART 
Menu -> 1.ADJUST CHECK
 
3.2. Final Assembly adjustment
(1) White Balance adjustment
(2) RS-232C functionality check
(3) Factory Option setting per destination
(4) Shipment mode setting (IN-STOP)
(5) GND and HI-POT test
* After downloading, have to adjust TOOL OPTION again.
1. Push "IN-START" key in service remote controller.
2. Select "Tool Option 1" and Push “OK” button.
3.  Punch  in  the  number.  (Each  of  models  has  their  number.)  
[See the BOM]
4. Completed selecting Tool option.
3.3 ADC Process
3.3.1. ADC
▪  Using RS-232, adjust items listed in 3.1 in the other shown in 
below
Order
Command
Set response
Enter adj. mode
aa 00 00
a 00 OK00x
Source change
xb 00 40
xb 00 60 
b 00 OK40x (Adjust 480i Comp1 )
             (Adjust 1080p Comp1)
b 00 OK60x (Adjust 1080p RGB)
Begin adj.
ad 00 10
Return adj. result
OKx ( Success condition )
NGx ( Failed condition )
Read adj. data
( main)
ad 00 20 
( main )
ad 00 30
(main : component1 480i, RGB 1080p)
000000000000000000000000007c007b-
006dx
(main : component1 1080p)
000000070000000000000000007c0083
0077x
Confirm adj.
ad 00 99
NG 03 00x (Failed condition)
NG 03 01x (Failed condition)
NG 03 02x (Failed condition)
OK 03 03x (Success condition)
End adj.
ad 00 90
d 00 OK90x
Ref.) ADC Adj. RS232C Protocol_Ver1.0
● Adj. order
▪aa 00 00  [Enter ADC adj. mode]
▪xb 00 40  [Change input source to Component1(1080i)]
▪ad 00 10  [Adjust 480i Comp1]
▪xb 00 60  [Change input source to RGB(1024*768)]
▪ad 00 10  [Adjust 1024*768 RGB]
▪ad 00 90  End adj.
Ref) ADC adj. RS232C Protocol_Ver1.0
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.
- 14 -
3.4 Function Check
3.4.1 Check display and sound 
■ Check Input and Signal items. (cf. work instructions) 
(1) TV
(2) AV (CVBS)
(3) COMPONENT (480i)
(4) RGB (PC : 1024 x 768 @ 60hz)
(5) HDMI
(6) PC Audio In 
* Display and Sound check is executed by Remote controller.
=> Caution :  Not to push the INSTOP KEY after completion if 
the function inspection.
3.5. EDID/DDC Download 
3.5.1 Overview
It is a VESA regulation. A PC or a MNT will display an optimal 
resolution through information sharing without any necessity of 
user input. It is a realization of “Plug and Play”.
3.5.2 Equipment
▪ Adjust remocon.
▪  Since  embedded  EDID  data  is  used,  EDID  download  JIG, 
HDMI cable and D-sub cable are not need
3.5.3 Download method
1) Press Adj. key on the Adj. R/C,
2) Select EDID D/L menu.
3) By pressing Enter key, EDID download will begin
4)  If Download is successful, OK is display, but If Download is 
failure, NG is displayed.
5) If Download is failure, Re-try downloads.
Caution)  When  EDID  Download,  must  remove  RGB/HDMI 
Cable.
3.6.  MAC Address,  ESN  Key  and  Widevine 
Key download 
3.6.1. Equipment & Condition
1) Play file: keydownload.exe
3.6.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
3.6.3. Download process
1) Select the download items.
2) Mode check: Online Only
3) Check the test process
-   DETECT  ->  MAC_WRITE  ->  ESN_WRITE  ->  WIDEVINE_
WRITE
4) Play : START
5) Check of result: Ready, Test, OK or NG
3.6.4. Communication Port connection
1)  Connect:  PCBA  Jig  ->  RS-232C  Port  ==  PC  ->  RS-232C 
Port
3.7. LAN port Inspection (Ping Test)
3.7.1. Equipment setting
1) Play the LAN Port Test PROGRAM.
2) Input IP set up for an inspection to Test 
    Program.
    *IP Number : 12.12.2.2.
3.7.2. LAN PORT inspection  (PING TEST)
1) Play the LAN Port Test Program.
2) connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) remove LAN CABLE
- 15 -
4. Total Assembly line process
4.1. Adjustment Preparation
■ W/B Equipment condition
    CA210 :  CH 9, Test signal : Inner pattern (80IRE) – in case of 
CCFL back light
    CA210 :  CH14, Test signal : Inner pattern (80IRE) – in case of 
LED back light
■  Above 5 minutes H/run in the inner pattern. (“power on” key of 
adjust remote control)
Color
Temperature
Cool
13,000k K
X=0.269
(±0.002)
Y=0.273
(±0.002)
<Test signal>
Inner pattern
(204 Gray
80IRE)
Medium
9,300k
K
X=0.285
(±0.002)
Y=0.293
(±0.002)
Warm
6,500k
K
X=0.313
(±0.002)
Y=0.329
(±0.002)
■  Edge LED W/B Table in process of time (Only LGD except AUO/
CMI)
   LS35/46, LM58 Tool ( LED LCD TV Model ) 
   CA210 : CH 14, Test signal : Inner pattern (80IRE)
▪  Standard  color  coordinate  and  temperature  using  CA-1000  (by 
H/R time)
●47/55LM7xxx, 47/55LM8xxx, 47/55LM9xxx
H/R Time(Min)
Cool
Medium
Warm
x
y
x
x
y
x
269
273
285
293
313
329
1
0-2
283
293
299
313
320 
339
2
3-5
282
291
298
311
319 
337
3
6-9
281
290
297
310
318 
336
4
10-19
279
289
295
309
316 
335
5
20-35
277
284
293
304
314 
330
6
36-49
274
279
290
299
311 
325
7
50-79
271
277
287
297
308 
323
8
80-119
270
274
286
294
307 
320
9
Over 120
269 
273 
285 
293 
306
319
  Connecting picture of the measuring instrument 
     (On Automatic control)
Inside PATTERN is used when W/B is controlled. Connect to 
auto controller or push Adjustment R/C POWER-ON -> Enter 
the mode of White-Balance, the pattern will come out.
 Auto-control interface and directions
(1)  Adjust  in  the  place  where  the  influx  of  light  like  floodlight 
around is blocked. (Illumination is less than 10ux).
(2)  Adhere closely  the Color Analyzer ( CA210 ) to the module 
less  than  10cm  distance,  keep  it  with  the  surface  of  the 
Module and Color Analyzer’s Prove vertically.(80~100°).
(3) Aging time
-  After  aging  start,  keep  the  power  on  (no  suspension  of 
power supply) and heat-run over 5 minutes.
-  Using ‘no signal’ or ‘full white pattern’ or the others, check 
the back light on.
● Auto adjustment Map(RS-232C)
   RS-232C COMMAND
   [ CMD    ID    DATA ]    
       Wb     00       00       White Balance Start
       Wb     00       ff        White Balance End  
RS-232C COMMAND
[CMD ID DATA]
MIN
CENTER
(DEFAULT)
MAX
Cool
Mid
Warm
Cool
Mid
Warm
R Gain
jg
Ja
jd
00
172
192
192
192
G Gain
jh
Jb
je
00
172
192
192
192
B Gain
ji
Jc
jf
00
192
192
172
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
- 16 -
** Caution **
Color Temperature : COOL, Medium, Warm.
One  of  R  Gain/G  Gain/  B  Gain  should  be  kept  on  0xC0,  and 
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range of  
Module)
*Manual W/B process using adjusts Remote control.
■After enter Service Mode by pushing “ADJ” key,
■Enter White Balance by pushing “►” key at “7. White Balance”.
  After  You  finish  all  adjustments,  Press  “In-start”  button  and 
compare Tool option and Area option value with its BOM, if it is 
correctly same then unplug the AC cable.
     If it is not same, then correct it same with BOM and unplug AC 
cable.  For  correct  it  to  the  model’s  module  from  factory  JIG 
model.
  Push  The  “IN  STOP  KEY”  after  completing  the  function 
inspection. And Mechanical Power Switch must be set “ON”. 
4.2. DDC EDID Write (RGB 128Byte)
■ Connect D-sub Signal Cable to D-Sub Jack.
■  Write  EDID  DATA  to  EEPROM  (24C02)  by  using  DDC2B 
protocol.
■ Check whether written EDID data is correct or not.
*  For SVC main Ass’y, EDID have to be downloaded to Insert 
Process in advance.
4.3. DDC EDID Write (HDMI 256Byte)
■ Connect HDMI Signal Cable to HDMI Jack.
■  Write  EDID  DATA  to  EEPROM(24C02)  by  using  DDC2B 
protocol.
■ Check whether written EDID data is correct or not.
*  For SVC main Ass’y, EDID have to be downloaded to Insert 
Process in advance.
4.4. EDID DATA
1) All Data : HEXA Value
2) Changeable Data :
    *: Serial No : Controlled / Data:01
    **: Month : Controlled / Data:00
    ***:Year : Controlled
    ****:Check sum
- Auto Download
■ After enter Service Mode by pushing “ADJ” key,
■ Enter EDID D/L mode.
■ Enter “START” by pushing “OK” key. 
 Edid data and Model option download (RS232C)
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 com-
mand
Edid data 
and Model 
option
download
Download
A
E
00
10
Automatically 
download
(The use of a 
internal Data)
LM8600-SA   
HDMI  EDID Data(Model name = LG TV )
HDMI-1 EDID table (0x43, 0x11)
1) HDMI 1 Check sum : 0x43, 0X11  (CEA Block 0x1E :10)
2) HDMI 2 Check sum : 0x43, 0X01  (CEA Block 0x1E :20)
3) HDMI 3 Check sum : 0x43, 0XF1  (CEA Block 0x1E :30)
4) HDMI 4 Check sum : 0x43, 0XE1  (CEA Block 0x1E :40)
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