55LM5800, 55LM5850 (CHASSIS:LA21B) - LG TV Service Manual (repair manual)

Model
55LM5800 55LM5850 (CHASSIS:LA21B)
Pages
44
Size
5.31 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lm5800-55lm5850-chassis-la21b.pdf
Date

View LG 55LM5800 / 55LM5850 (CHASSIS:LA21B) Service Manual online

P/NO : MFL67402818 (1203-REV01)
CHASSIS : LA21B
MODEL : 55LM5800   
55LM5800-UC
MODEL : 
55LM5850   
55LM5850-UF
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
LED LCD TV
SERVICE MANUAL
- 2 -
CONTENTS
CONTENTS  .............................................................................................. 2
PRODUCT SAFETY  ................................................................................. 3
SPECIFICATION ....................................................................................... 4
ADJUSTMENT INSTRUCTION ................................................................ 9
SCREW ASSEMBLY WORKING GUIDE ................................................15
TROUBLE SHOOTING ............................................................................16
BLOCK DIAGRAM .................................................................................. 24
EXPLODED VIEW  .................................................................................. 25
SCHEMATIC CIRCUIT DIAGRAM  ..............................................................
- 3 -
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 
Shock, Fire, or other Hazards. 
Do not modify the original design without permission of manufacturer.
General Guidance
An 
isolation  Transformer  should  always  be  used  during  the 
servicing of a receiver whose chassis is not isolated from the AC 
power  line.  Use  a  transformer  of  adequate  power  rating  as  this 
protects  the  technician  from  accidents  resulting  in  personal  injury 
from electrical shocks.
It  will  also  protect  the  receiver  and  it's  components  from  being 
damaged  by  accidental  shorts  of  the  circuitry  that  may  be 
inadvertently introduced during the service operation.
If  any  fuse  (or  Fusible  Resistor)  in  this  TV  receiver  is  blown, 
replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film Resistor, 
over 1 W), keep the resistor 10 mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer, 
always  perform  an 
AC  leakage  current  check  on  the  exposed 
metallic parts of the cabinet, such as antennas, terminals, etc., to 
be  sure  the  set  is  safe  to  operate  without  damage  of  electrical 
shock. 
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an 
electrical  jumper  across  the  two AC  plug  prongs.  Place  the AC 
switch in the on position, connect one lead of ohm-meter to the AC 
plug prongs tied together and touch other ohm-meter lead in turn to 
each  exposed  metallic  parts  such  as  antenna  terminals,  phone 
jacks, etc. 
If  the  exposed  metallic  part  has  a  return  path  to  the  chassis,  the 
measured resistance should be between 1 M
Ω and 5.2 MΩ. 
When  the  exposed  metal  has  no  return  path  to  the  chassis  the 
reading must be infinite.
An  other  abnormality  exists  that  must  be  corrected  before  the 
receiver is returned to the customer.
Leakage Current Hot Check 
(See below Figure) 
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check. 
Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor 
between  a  known  good  earth  ground  (Water  Pipe,  Conduit,  etc.) 
and the exposed metallic parts.
Measure  the AC  voltage  across  the  resistor  using AC  voltmeter 
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage 
measurements  for  each  exposed  metallic  part.  Any  voltage 
measured must not exceed 0.75 volt RMS which is corresponds to 
0.5 mA.
In  case  any  measurement  is  out  of  the  limits  specified,  there  is 
possibility  of  shock  hazard  and  the  set  must  be  checked  and 
repaired before it is returned to the customer.
Leakage Current Hot Check circuit 
IMPORTANT SAFETY NOTICE
SAFETY PRECAUTIONS
- 4 -
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
1. Application range
This spec sheet is applied LCD TV with LA21B/C chassis
2. Test condition
Each part is tested as below without special notice.
1) Temperature : 25 ºC ± 5 ºC (77 ºF ± 9 ºF), CST : 40 ºC±5 ºC
2) Relative Humidity: 65 % ± 10 %
3) Power Voltage
: Standard input voltage (AC 110-240 V~, 50/60 Hz)
* Standard Voltage of each products is marked by models.
4)  Specification  and  performance  of  each  parts  are  followed 
each  drawing  and  specification  by  part  number  in 
accordance with BOM.
5)  The receiver must be operated for about 5 minutes prior to 
the adjustment.
3. Test method
1) Performance: LGE TV test method followed 
2) Demanded other specification 
- Safety : UL, CSA, IEC specification
- EMC: FCC, ICES, IEC specification 
4. General Specification
No
                 Item
Specification
Remark
1
Receiving System
1) ATSC / NTSC-M
2
Available Channel
1) VHF : 02~13
2) UHF : 14~69
3) DTV : 02-69
4) CATV : 01~135
5) CADTV : 01~135
3
Input Voltage
1) AC 100 ~ 240V 50/60Hz
Mark : 110V, 60Hz (N.America)
4
Market
NORTH AMERICA
5
Screen Size
42/47/55 inch Wide (1920 × 1080)
FHD + 60Hz
6
Aspect Ratio
16:9
7
Tuning System
FS
8
Module
Edge LED
LC550EUE-SEF1 (T120 FHD FPR 3D)
LGD
55LM5800-UC/ 55LM5850-UF
LC470EUE-SEF1 (T120 FHD FPR 3D)
LGD
47LM5800-UC/ 47LM5850-UF
LC420EUE-SEF1 (T120 FHD FPR 3D)
LGD
42LM5800-UC/ 42LM5850-UF
9
Operating 
Environment
1) Temp   :  0 ~ 40 deg
2) Humidity :   ~ 80 %
10 Storage 
Environment
1) Temp   : -20 ~ 60 deg
2) Humidity :   ~ 85 %
- 5 -
5. Component Video Input (Y, C
b
/P
b
, C
r
/P
r
)
6. RGB (PC)
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
1
720*480
15.73
60.00
13.5135
SDTV ,DVD 480I
2
720*480
15.73
59.94
13.50
SDTV ,DVD 480I
3
720*480
31.50
60.00
27.027
SDTV 480P
4
720*480
31.47
59.94
27.00
SDTV 480P
5
1280*720
45.00
60.00
74.25
HDTV 720P
6
1280*720
44.96
59.94
74.176
HDTV 720P
7
1920*1080
33.75
60.00
74.25
HDTV 1080I
8
1920*1080
33.72
59.94
74.176
HDTV 1080I
9
1920*1080
67.50
60.00
148.50
HDTV 1080P
10
1920*1080
67.432
59.94
148.352
HDTV 1080P
11
1920*1080
27.00
24.00
74.25
HDTV 1080P
12
1920*1080
26.97
23.94
74.176
HDTV 1080P
13
1920*1080
33.75
30.00
74.25
HDTV 1080P
14
1920*1080
33.71
29.97
74.176
HDTV 1080P
No
Resolution
H-freq(kHz) V-freq.(Hz)
Pixel clock(MHz)
Proposed
DDC Remark
1
640*350
31.468
70.09
25.17
EGA
X
2
720*400
31.469
70.08
28.32
DOS
O
3
640*480
31.469
59.94
25.17
VESA(VGA)
O
4
800*600
37.879
60.31
40.00
VESA(SVGA)
O
5
1024*768
48.363
60.00
65.00
VESA(XGA)
O
6
1152*864
54.348
60.053
VESA
O
7
1360*768
47.712
60.015
85.50
VESA (WXGA)
O
8
1920*1080
66.587
59.934
138.5
WUXGA
O
Full HD model Only
- 6 -
7. HDMI Input
No.
Resolution
H-freq(kHz)
V-freq.(kHz)
Pixel clock(MHz)
         Proposed
Remarks
PC (DVI)
DDC
1
640*350
31.468
70.09
25.17
EGA
X
2
720*400
31.469
70.08
28.32
DOS
O
3
640*480
31.469
59.94
25.17
VESA(VGA)
O
4
800*600
37.879
60.31
40.00
VESA(SVGA)
O
5
1024*768
48.363
60.00
65.00
VESA(XGA)
O
6
1152*864
54.348
60.053
VESA
O
7
1280*1024
63.981
60.020
108.0
VESA (SXGA)
O
Full HD model Only
8
1360*768
47.712
60.015
85.50
VESA (WXGA)
O
9
1920*1080
67.50
60.00
148.5
HDTV 1080P
O
Full HD model Only
DTV
1
720*480
31.47
60.00
27.027
SDTV 480P
2
720*480
31.47
59.94
27.00
SDTV 480P
3
1280*720
45.00
60.00
74.25
HDTV 720P
4
1280*720
44.96
59.94
74.176
HDTV 720P
5
1920*1080
33.75
60.00
74.25
HDTV 1080I
6
1920*1080
33.72
59.94
74.176
HDTV 1080I
7
1920*1080
67.50
60.00
148.50
HDTV 1080P
8
1920*1080
67.432
59.94
148.352
HDTV 1080P
9
1920*1080
27.00
24.00
74.25
HDTV 1080P
10
1920*1080
26.97
23.976
74.176
HDTV 1080P
11
1920*1080
33.75
30.00
74.25
HDTV 1080P
12
1920*1080
33.71
29.97
74.176
HDTV 1080P
- 7 -
8. 3D Mode (LM5800//LM4600/ CM565 models)
8.1. RF 3D Input(DTV)
8.3. HDMI Input(1.3)
- Connect the HDMI cable & receiving the HDMI signal
- Press “3D” key of remote control & select 3D format below.
No.
Resolution
H-freq(kHz) V-freq.(kHz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1
1280*720
89.9 / 90
59.94/60
148.35/148.5
HDTV 720P
Frame packing (720 60p)
2
1280*720
45
60
74.25
HDTV 720P
Side by Side(half), Top & Bottom
3
1920*1080
53.95 / 54
23.98 / 24
148.35/148.5
HDTV 1080P
Frame packing (1080 24p)
4
1920*1080
67.5
60
148.5
HDTV 1080P
Side by Side(half), Top & bottom
5
1920*1080
33.7
60
74.25
HDTV 1080i
Side by Side(half), Top & Bottom
6
1920*1080
27
24
74.25
HDTV 1080P
Side by Side(half), Top & Bottom
7
1920*1080
33.7
30
74.25
HDTV 1080P
Side by Side(half), Top &Bottom
No.
Resolution H-freq(kHz) V-freq.(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1
1280*720
45.00
60.00
74.25
HDTV 720P
Side by Side, Top & Bottom
2
1920*1080
33.75
60.00
74.25
HDTV 1080I
Side by Side, Top & Bottom
3
1920*1080
27.00
24.00
74.25
HDTV 1080P
Side by Side, Top & Bottom
4
1920*1080
33.75
30.00
74.25
HDTV 1080P
Side by Side, Top & Bottom
5
1920*1080
67.50
60.00
148.5
HDTV 1080P
Side by Side, Top & Bottom, 
Single Frame Sequential
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1
1280*720
37.5
50
74.25
HDTV 720P
Side by Side, Top & Bottom
2
1920*1080
28.125
50
74.25
HDTV 1080I
Side by Side, Top & Bottom
8.2. HDMI Input (V1.4a)
- When connect the cable on TV or change the input mode, 3D display on automatically
- Display OSD information -> 1920x2205 [1080p 24], 1280x1470 [720p 60
]
- 8 -
8.6. 3D Input mode
8.5. RGB-PC Input
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1
1920*1080
66.587
59.93
138.625
HDTV 1080P
Side by Side, Top & Bottom
No.
Side by Side
Top & Bottom
Single Frame Sequential
Frame Packing
1
8.4. USB Input
(1) Movie
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
3D input proposed mode
Proposed
1
1920*1080
33.75
30
74.25
Side by Side
HDTV 1080P
Top & Bottom
(2) MPO Picture 3D : when selecting the MPO file, Automatically 3D on
(3) 3D Demo in store mode
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
3D input proposed mode
1
1920*1080
33.75
30.00
74.25
HDTV 1080P
Side by Side
 
 
LLLLL
 
8.7. DLNA
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
1
1920*1080
33.75
30
74.25
HDTV 1080P
Side by Side, Top & Bottom
- 9 -
ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet applies to LA21B/C Chassis applied LCD TV 
all models manufactured in TV factory.
2. Specification
(1)  Because  this  is  not  a  hot  chassis,  it  is  not  necessary  to 
use an isolation transformer. However, the use of isolation 
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order. 
(3)  The adjustment must be performed in the circumstance of 
25 ±5 °C of temperature and 65±10% of relative humidity if 
there is no specific designation.
(4)  The  input  voltage  of  the  receiver  must  keep  100~240V, 
50/60Hz.
(5)  At first Worker must turn on the SET by using Power Only 
key.
(6)  The receiver must be operated for about 5 minutes prior to 
the adjustment when module is in the circumstance of over 
15 °C
      In case of keeping module is in the circumstance of 0°C, it 
should be placed in the circumstance of above 15°C for 2 
hours
      In case of keeping module is in the circumstance of below 
-20°C,  it  should  be  placed  in  the  circumstance  of  above 
15°C for 3 hours.
[Caution] 
When  still  image  is  displayed  for  a  period  of  20  minutes  or 
longer (especially where W/B scale is strong.
Digital  pattern  13ch  and/or  Cross  hatch  pattern  09ch),  there 
can some afterimage in the black level area
3. Adjustment items
3.1. Main PCBA Adjustments
(1)  ADC  adjustment:  Component  480i,  1080p  /  RGB-PC 
1080p
(2) EDID download: HDMI and RGB-PC
●  Above  adjustment  items  can  be  also  performed  in  Final 
Assembly  if  needed.  Both  Board-level  and  Final  assembly 
adjustment  items  can  be  check  using  In-Start  Menu  (1.
Adjust  Check).  Component  1080p  and  RGB-PC Adjust  will 
be calculated by 480i adjust value.
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
3.3. Appendix
(1) Shipment conditions
(2) Tool option menu
(3) USB Download (S/W Update, Option and Service only)
(4) Preset CH Information
4. MAIN PCBA Adjustments
4.1. ADC Adjustment
4.1.1. Overview
▪  ADC  adjustment  is  needed  to  find  the  optimum  black  level 
and gain in Analog-to-Digital device and to compensate RGB 
deviation.
4.1.2. Equipment & Condition
(1) Protocol: RS-232C
(2) Inner Pattern
- Resolution : 1080p(Comp) / 1024*768(RGB)
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7±0.1 Vp-p
4.1.3. Adjustment
4.1.3.1. Adjustment method
-  Connect  to  Jig  by  using  RS-232,  adjust  Component  and 
RGB
● Manual adj (If needed in Final Assembly)
- Required equipment : Adjustment R/C
- Enter Service Mode by pushing “ADJ” key,
Calibration]
4.1.3.2. Adj. protocol
-  Connect  to  Jig  by  using  RS-232,  adjust  Component  and 
RGB
Protocol CMD 1 CMD 2 Data 1 Data 2
Remark
Enter 
adj 
mode
a
a
00
00
When 
transfer 
the  ‘Mode 
In’,Carry the 
command.
Start 
ADC adj
a
d
00
10
Automatically 
adjustment 
(Use internal 
pattern)
- 10 -
4.2. EDID Download
4.2.1. 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”.
4.2.2. Equipment
(1)  Since EDID data is embedded, EDID download JIG, HDMI 
cable and D-sub cable are not need.
(2) Adjust by using remote controller.
4.2.3. 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.
4.2.4. EDID DATA
(1) FHD Model - 8Bit
■ HDMI 1-FHD-8BIT (C/S : E9CF)
EDID Block 0, Bytes 0-127 [00H-7FH]
           0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
   -----------------------------------------------------------------------------------
  0  |  00  FF  FF  FF  FF  FF  FF  00  1E  6D  01  00  01  01  01  01
 10  |  01  16  01  03  80  A0  5A  78  0A  EE  91  A3  54  4C  99  26
 20  |  0F  50  54  A1  08  00  31  40  45  40  61  40  71  40  81  80
 30  |  01  01  01  01  01  01  02  3A  80  18  71  38  2D  40  58  2C
 40  |  45  00  40  84  63  00  00  1E  66  21  50  B0  51  00  1B  30
 50  |  40  70  36  00  40  84  63  00  00  1E  00  00  00  FD  00  3A
 60  |  3E  1E  53  10  00  0A  20  20  20  20  20  20  00  00  00  FC
 70  |  00  4C  47  20  54  56  0A  20  20  20  20  20  20  20  01  E9
EDID Block 1, Bytes 128-255  [80H-FFH]
           0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
    -------------------------------------------------------------------------------
  0  |  02  03  19  F1  48  90  22  20  05  04  03  02  01  23  09  57
 10  |  07  67  03  0C  00  10  00  80  1E  02  3A  80  18  71  38  2D
 20  |  40  58  2C  04  05  40  84  63  00  00  1E  01  1D  80  18  71
 30  |  1C  16  20  58  2C  25  00  40  84  63  00  00  9E  01  1D  00
 40  |  72  51  D0  1E  20  6E  28  55  00  40  84  63  00  00  1E  8C
 50  |  0A  D0  8A  20  E0  2D  10  10  3E  96  00  40  84  63  00  00
 60  |  18  26  36  80  A0  70  38  1F  40  30  20  25  00  40  84  63
 70  |  00  00  1A  00  00  00  00  00  00  00  00  00  00  00  00  CF
■ HDMI 2-FHD-8BIT (C/S : E9BF)
EDID Block 0, Bytes 0-127 [00H-7FH]
           0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
   ------------------------------------------------------------------------------
  0  |  00  FF  FF  FF  FF  FF  FF  00  1E  6D  01  00  01  01  01  01
 10  |  01  16  01  03  80  A0  5A  78  0A  EE  91  A3  54  4C  99  26
 20  |  0F  50  54  A1  08  00  31  40  45  40  61  40  71  40  81  80
 30  |  01  01  01  01  01  01  02  3A  80  18  71  38  2D  40  58  2C
 40  |  45  00  40  84  63  00  00  1E  66  21  50  B0  51  00  1B  30
 50  |  40  70  36  00  40  84  63  00  00  1E  00  00  00  FD  00  3A
 60  |  3E  1E  53  10  00  0A  20  20  20  20  20  20  00  00  00  FC
 70  |  00  4C  47  20  54  56  0A  20  20  20  20  20  20  20  01  E9
EDID Block 1, Bytes 128-255  [80H-FFH]
         0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
      --------------------------------------------------------------------------------
  0  |  02  03  19  F1  48  90  22  20  05  04  03  02  01  23  09  57
 10  |  07  67  03  0C  00  20  00  80  1E  02  3A  80  18  71  38  2D
 20  |  40  58  2C  04  05  40  84  63  00  00  1E  01  1D  80  18  71
 30  |  1C  16  20  58  2C  25  00  40  84  63  00  00  9E  01  1D  00
 40  |  72  51  D0  1E  20  6E  28  55  00  40  84  63  00  00  1E  8C
 50  |  0A  D0  8A  20  E0  2D  10  10  3E  96  00  40  84  63  00  00
 60  |  18  26  36  80  A0  70  38  1F  40  30  20  25  00  40  84  63
 70  |  00  00  1A  00  00  00  00  00  00  00  00  00  00  00  00  BF
■ HDMI 3-FHD-8BIT (C/S : E9AF)
EDID Block 0, Bytes 0-127 [00H-7FH]
            
0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
    -------------------------------------------------------------------------------
  0  |  00  FF  FF  FF  FF  FF  FF  00  1E  6D  01  00  01  01  01  01
 10  |  01  16  01  03  80  A0  5A  78  0A  EE  91  A3  54  4C  99  26
 20  |  0F  50  54  A1  08  00  31  40  45  40  61  40  71  40  81  80
 30  |  01  01  01  01  01  01  02  3A  80  18  71  38  2D  40  58  2C
 40  |  45  00  40  84  63  00  00  1E  66  21  50  B0  51  00  1B  30
 50  |  40  70  36  00  40  84  63  00  00  1E  00  00  00  FD  00  3A
 60  |  3E  1E  53  10  00  0A  20  20  20  20  20  20  00  00  00  FC
 70  |  00  4C  47  20  54  56  0A  20  20  20  20  20  20  20  01  E9
EDID Block 1, Bytes 128-255  [80H-FFH]
           0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
     ------------------------------------------------------------------------------- 
  0  |  02  03  19  F1  48  90  22  20  05  04  03  02  01  23  09  57
 10  |  07  67  03  0C  00  30  00  80  1E  02  3A  80  18  71  38  2D
 20  |  40  58  2C  04  05  40  84  63  00  00  1E  01  1D  80  18  71
 30  |  1C  16  20  58  2C  25  00  40  84  63  00  00  9E  01  1D  00
 40  |  72  51  D0  1E  20  6E  28  55  00  40  84  63  00  00  1E  8C
 50  |  0A  D0  8A  20  E0  2D  10  10  3E  96  00  40  84  63  00  00
 60  |  18  26  36  80  A0  70  38  1F  40  30  20  25  00  40  84  63
 70  |  00  00  1A  00  00  00  00  00  00  00  00  00  00  00  00  AF
■ RGB-FHD (C/S : 02)
EDID Block 0, Bytes 0-127 [00H-7FH]
           0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
   -------------------------------------------------------------------------------------
  0  |  00  FF  FF  FF  FF  FF  FF  00  1E  6D  01  00  01  01  01  01
 10  |  01  16  01  03  68  A0  5A  78  0A  EE  91  A3  54  4C  99  26
 20  |  0F  50  54  A1  08  00  31  40  45  40  61  40  71  40  81  80
 30  |  01  01  01  01  01  01  02  3A  80  18  71  38  2D  40  58  2C
 40  |  45  00  40  84  63  00  00  1E  66  21  50  B0  51  00  1B  30
 50  |  40  70  36  00  40  84  63  00  00  1E  00  00  00  FD  00  3A
 60  |  3E  1E  53  10  00  0A  20  20  20  20  20  20  00  00  00  FC
 70  |  00  4C  47  20  54  56  0A  20  20  20  20  20  20  20  00  02

Download LG 55LM5800 / 55LM5850 (CHASSIS:LA21B) Service Manual (Repair Manual)

Here you can view online and download LG 55LM5800 / 55LM5850 (CHASSIS:LA21B) Service Manual in PDF. 55LM5800 / 55LM5850 (CHASSIS:LA21B) service manual will guide through the process and help you recover, restore, fix, disassemble and repair LG 55LM5800 / 55LM5850 (CHASSIS:LA21B) LCD. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.