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

- 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)
- 17 -
RGB EDID DATA RGB CheckSum : 5C
4.6. Local Dimming Inspection
(1)  Press  ‘TILT”  key  of  the  Adj.  R/C  and  check  moving 
patterns. The black bar patterns moves from top to bottom.
      If a local dimming function does not work, a whole screen 
shows full white.
4.7. EYE-Q Check  
Step 1) Turn on the TV..
Step 2)  Press  'EYE  button'  on  the  adjustment  remote-
controller.
Step 3)  Cover  'Eye  Q  sensor'  on  the  front  of  set  with  your 
hands, hold it for 6 seconds.
Step 4)  Check "the Sensor Data" on the screen, make certain 
that  Data  is  below  10.  If  Data  isn’t  below  10  in  6 
seconds,  Eye  Q  sensor  would  be  bad.  You  should 
change Eye Q sensor.
Step 5)  Uncover your hands from Eye Q sensor, hold it for 6 
seconds.
Step 6)  Check  "Back  Light(xxx)"  on  the  screen,  check  data 
increase . You should change Eye Q sensor. 
4.8. Magic Motion remote controller Check
4.8.1 Test equipment
-  RF-remote  controller  for  check,  IR-KEY-CODE  remote 
controller.
-  Check AA  battery  before  test. A  recommendation  is  that  a 
tester change battery every lots.
4.8.2. Test
(1)  Make pairing with TV set by pressing “Mute (START) key” 
on RCU.
(2)  Check  a  cursor  on  screen  by  pressing  ‘ENTER”  or  “OK” 
key of RCU
(3) Stop paring with TV set by pressing “VOL+ (STOP) key.
4.9. 3D pattern test (Only for 3D models)  
4.9.1. Test equipment
(1)  Pattern  Generator  MSHG-600  or  MSPG-6100  (HDMI  1.4 
support)
(2) Pattern: HDMI mode (model No. 872, pattern No. 83)
4.9.2. Test method
(1) Input 3D test signal as Fig.1.
(2) Press ‘OK” key as a 3D input OSD is shown.
(3)  Check  pattern  as  Fig2  without  3D  glasses.  (3D  mode 
without 3D glasses)
            Fig.2   
 
 
 
                Fig.3
<OK in 3D mode without 3D glasses>         <NG in 3D mode without 3D glasses>
 
<Step 2>
<Step 5>
<Step 6>
<Step 3>
<Step 4>
- 18 -
4.10. HDMI ARC Function Inspection  
4.10.1. Test equipment
- Optic Receiver Speaker          
- MSHG-600 (SW: 1220 ↑) 
- HDMI Cable (for 1.4 version)
4.10.2. 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
4.11. Outgoing condition Configuration
■  When  pressing  IN-STOP  key  by  SVC  remocon,  Red  LED 
are blinked alternatively. And then automatically turn off.
   (Must not AC power OFF during blinking)
 
4.12 Hi-pot Test
Confirm whether is normal or not when between power board's 
ac block and GND is impacted on 1.5kV/min at 100mA(GND) 
and 3kV/min at 100mA(Signal) 
 
- 19 -
EXPLODED VIEW
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.
IMPORTANT SAFETY NOTICE
A22
A10
AG
1
* Set + Stan
d
* Stand Base + Body
AG
2
90
0
300
301
200
40
0
70
0
71
0
540
52
1
530
800
81
0
541
91
0
56
0
41
0
57
0
120
51
0
501
500
580
31
0
LV
1
123
122
Dual Play
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