LG 42LM6200 User manual

Printed in KoreaP/NO : MFL67460414 (1202-REV00)
CHASSIS : LA22E
MODEL : 42LM6200 42LM6200-UE
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
LED LCD TV
SERVICE MANUAL
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
Internal Use Only

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CONTENTS
CONTENTS .............................................................................................. 2
PRODUCT SAFETY ................................................................................. 3
SPECIFICATION ....................................................................................... 4
ADJUSTMENT INSTRUCTION .............................................................. 10
SCREW ASSEMBLY WORKING GUIDE ............................................... 20
EXPLODED VIEW .................................................................................. 21
SCHEMATIC CIRCUIT DIAGRAM ..............................................................

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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 MΩand 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

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SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement .
1. Application range
This spec sheet is applied all of the 32”, 42”, 47”, 55”, 65”
LCD TV with LA22E chassis
2. Test condition
Each part is tested as below without special notice.
1) Temperature : 20 ºC ± 5 ºC
2) Relative Humidity: 65 % ± 10 %
3) Power 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: CE, IEC specification
- EMC: CE, IEC specification
- Wireless : WirelessHD Specification (Option)
4. General Specification
No Item Specication 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 120V, 50/60Hz on the label (USA)
4 Market NORTH AMERICA
5 Screen Size 42 inches
6 Aspect Ratio 16:9
7 Tuning System FS
8 Module LC420EUE-SEF1 LGD
9 Operating Environment 1) Temp : 0 ~ 40 deg
2) Humidity : ~ 80 %
10 Storage Environment 1) Temp : -20 ~ 60 deg
2) Humidity : ~ 85 %

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5. Supported video resolutions
5.1. 2D mode
5.1.1. Component Video Input (Y, CB/PB, CR/PR)
5.1.2. RGB Input (PC)
No. Resolution H-freq(kHz) V-freq.(kHz) Pixel clock 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.(kHz) Pixel clock Proposed
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
7 1360*768 47.712 60.015 85.50 VESA (WXGA) X
8 1920*1080 67.5 60.00 148.5 WUXGA(CEA861D) O

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5.1.3. HDMI Input 1 (PC/DTV)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel
clock(MHz) Proposed Remark
PC (DVI)
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 VESA(SXGA)
8 1360*768 47.712 60.015 85.50 VESA (WXGA)
9 1920*1080 67.5 60.00 148.5 HDTV 1080P WUXGA(Reduced Blanking) O FHD only
DTV
1 720*480 31.50 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

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5.2. 3D mode
5.2.1. RF Input
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark
1 1920*1080 45 60 74.25 HDTV 1080I Side by Side, Top & Bottom
2 1280*720 45 60 74.25 HDTV 720P Side by Side, Top & Bottom
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Remark
1 1280*720p 45.00 60.00 74.25 Side by Side , Top & Bottom
2 1920*1080i 33.75 60.00 74.25 Side by Side , Top & Bottom
3 1920*1080p 67.50 60.00 148.50 Side by Side , Top & Bottom
Checkerboard
Single Frame Sequential
4 1920*1080p 27.00 24.000 74.25 Side by Side , Top & Bottom
Checkerboard
5 1920*1080p 33.75 30.000 74.25 Side by Side, Top & Bottom
Checkerboard
5.2.5. HDMI 1.3
5.2.2. USB Input
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark
1 1920*1080 33.75 30.00 74.25 HDTV 1080p Side by Side, Top & Bottom,
Checkerboard, MPO (Photo)
5.2.3. RGB-PC Input
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark
1 1920*1080 66.587 59.934 138.5 HDTV 1080p Side by Side, Top & Bottom
5.2.4. DLNA Input
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,
Checker board

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5.2.6. HDMI 1.4a
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark
1 1280*720p 90.00 60.00 148.50 Mandatory Frame Packing,
2 1280*720p 45.00 60.00 74.25 Mandatory Top & Bottom
3 1920*1080i 33.75 60.00 74.25 Mandatory Side by Side (Half)
4 1920*1080p 54.00 24.000 148.50 Mandatory Frame Packing,
5 1920*1080p 27.00 24.000 74.25 Mandatory Top & Bottom
6 1280*720p 45.00 60.00 74.25 Primary Side by Side (Half)
7 1920*1080i 67.50 60.00 148.50 Primary Frame Packing
8 1920*1080p 67.50 60.00 148.50 Primary Top & Bottom
9 1920*1080p 27.00 24.000 74.25 Primary Side by Side (Half)
10 1920*1080p 67.50 30.000 148.50 Primary Frame Packing,
11 1920*1080p 33.75 30.000 74.25 Primary Top & Bottom
12 1920*1080i 33.75 60.00 74.25 Secondary Top & Bottom
13 1920*1080p 67.50 60.00 148.50 Secondary Side by Side (Half)
14 1920*1080p 33.75 30.000 74.25 Secondary Side by Side (Half)
15 720*480p 63.00 60.00 54.054 Secondary (16:9) Frame Packing,
16 720*480p 31.50 60.00 27.027 Secondary (16:9) Top & Bottom
17 720*480p 31.50 60.00 27.027 Secondary (16:9) Side by Side (Half)
18 720*480p 63.00 60.00 54.054 Secondary (4:3) Frame Packing,
19 720*480p 31.50 60.00 27.027 Secondary (4:3) Top & Bottom
20 720*480p 31.50 60.00 27.027 Secondary (4:3) Side by Side (Half)
21 640*480p 63.00 60.00 50.40 Secondary Frame Packing,
22 640*480p 31.50 60.00 25.20 Secondary Top & Bottom
23 640*480p 31.50 60.00 25.20 Secondary Side by Side (Half)
24 1280*720p 90.00 60.00 148.50 Line Alternative
25 1280*720p 45.00 60.00 148.50 Side by Side (Full)
26 1920*1080i 67.50 60.00 148.50 Field Alternative
27 1920*1080i 33.75 60.00 148.50 Side by Side (Full)
28 1920*1080p 54.00 24.000 148.50 Line Alternative
29 1920*1080p 27.00 24.000 148.50 Side by Side (Full)
30 1920*1080p 67.50 30.000 148.50 Line Alternative
31 1920*1080p 33.75 30.000 148.50 Side by Side (Full)
32 720*480p 63.00 60.00 54.054 16:9 Line Alternative
33 720*480p 31.50 60.00 54.054 16:9 Side by Side (Full)
34 720*480p 63.00 60.00 54.054 4:3 Line Alternative
35 720*480p 31.50 60.00 54.054 4:3 Side by Side (Full)
36 640*480p 63.00 60.00 50.40 Line Alternative
37 640*480p 31.50 60.00 50.40 Side by Side (Full)

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5.3. 2D to 3D Mode
- Supports this function in all mode.
5.4. Remark: 3D Input mode
No. Side by Side Top & Bottom Checkerboard Single Frame Sequential Frame Packing
1
R
L
R
LLLLL
L
R
L

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ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet applies to LA22E 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) 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 downloads for HDMI and RGB-PC
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)Tool option menu, USB Download (S/W Update, Option and
Service only)
(2) Manual adjustment for ADC calibration and White balance.
(3) Shipment conditions, Channel pre-set
4. MAIN PCBA Adjustments
4.1. ADC Calibration
- An ADC calibration is not necessary because MAIN SoC
(LGE35230) is already calibrated from IC Maker
- If it needs to adjust manually, refer to appendix.
4.2. MAC Address, ESN Key and Widevine
Key download
4.2.1. Equipment & Condition
1) Play file: keydownload.exe
4.2.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
4.2.3. Download process
1) Select the download items.
2) Mode check: Online Only
3) Check the test process
- US, Canada models: DETECT -> MAC_WRITE ->
WIDEVINE_WRITE
- Korea, Mexico models: DETECT -> MAC_WRITE ->
WIDEVINE_WRITE
4) Play : START
5) Check of result: Ready, Test, OK or NG
4.2.4. Communication Port connection
1) Connect: PCBA Jig -> RS-232C Port == PC -> RS-232C
Port

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4.2.5. Download
1) US, Canada, Mexico models (11Y LCD TV + MAC +
Widevine + ESN Key)
2) Korea and Philippine models (11Y LCD TV + MAC +
Widevine Only)
4.2.6. Inspection
- In INSTART menu, check these keys.
4.3. LAN PORT INSPECTION(PING TEST)
4.3.1. 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.
4.3.2. 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

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4.4. EDID Download
4.4.1. 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”.
4.4.2. 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.
4.4.3. 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.
4.4.4. EDID DATA
4.4.4.1. 2D PCM(US) _ XvYcc : 0n
▪Reference
- HDMI1 ~ HDMI4 / RGB
- In the data of EDID, bellows may be different by S/W or Input
mode.
ⓐProduct ID
HEX EDID Table DDC Function
0001 0100 Analog
0001 0100 Digital
ⓑSerial No: Controlled on production line.
ⓒMonth, Year: Controlled on production line:
ex) Monthly : ‘01’ -> ‘01’
Year : ‘2012’ -> ‘16’
ⓓModel Name(Hex): LGTV
Chassis MODEL NAME(HEX)
LA22E 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔChecksum(LG TV): Changeable by total EDID data.
ⓔ1ⓔ2ⓔ3
HDMI1 43 F2 X
HDMI2 43 E2 X
HDMI3 43 D2 X
HDMI4 43 C2 X
RGB X X 5C
ⓕ Vendor Specific(HDMI)
INPUT MODEL NAME(HEX)
HDMI1 67 03 0C 00 10 00 80 2D
HDMI2 67 03 0C 00 20 00 80 2D
HDMI3 67 03 0C 00 30 00 80 2D
HDMI4 67 03 0C 00 40 00 80 2D
4.4.4.2. 3D PCM(US) _ XvYcc : 0n
ⓐProduct ID
HEX EDID Table DDC Function
0001 0100 Analog
0001 0100 Digital
ⓑSerial No: Controlled on production line.
ⓒMonth, Year: Controlled on production line:
ex) Monthly : ‘01’ -> ‘01’
Year : ‘2012’ -> ‘16’
ⓓModel Name(Hex): LGTV
Chassis MODEL NAME(HEX)
LA22E 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔChecksum(LG TV): Changeable by total EDID data.
ⓔ1ⓔ2ⓔ3
HDMI1 43 64 X
HDMI2 43 54 X
HDMI3 43 44 X
HDMI4 43 34 X
RGB X X 5C

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ⓕ Vendor Specific(HDMI)
INPUT MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI2 78 03 0C 00 20 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI3 78 03 0C 00 30 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI4 78 03 0C 00 40 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
4.4.4.3. 3D PCM(US) _ XvYcc : 0ff
▪Reference
- HDMI1 ~ HDMI4 / RGB
- In the data of EDID, bellows may be different by S/W or Input
mode.
ⓐProduct ID
HEX EDID Table DDC Function
0001 0100 Analog
0001 0100 Digital
ⓑSerial No: Controlled on production line.
ⓒMonth, Year: Controlled on production line:
ex) Monthly : ‘01’ -> ‘01’
Year : ‘2012’ -> ‘16’
ⓓModel Name(Hex): LGTV
Chassis MODEL NAME(HEX)
LA22E 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔChecksum(LG TV): Changeable by total EDID data.
ⓔ1ⓔ2ⓔ3
HDMI1 43 B5 X
HDMI2 43 A5 X
HDMI3 43 95 X
HDMI4 43 85 X
RGB X X 5C
ⓕ Vendor Specific(HDMI)
INPUT MODEL NAME(HEX)
HDMI1 67 03 0C 00 10 00 80 2D
HDMI2 67 03 0C 00 20 00 80 2D
HDMI3 67 03 0C 00 30 00 80 2D
HDMI4 67 03 0C 00 40 00 80 2D
4.4.4.4. 3D PCM(US) _XvYcc : off
ⓐProduct ID
HEX EDID Table DDC Function
0001 0100 Analog
0001 0100 Digital
ⓑSerial No: Controlled on production line.
ⓒMonth, Year: Controlled on production line:
ex) Monthly : ‘01’ -> ‘01’
Year : ‘2012’ -> ‘16’
ⓓModel Name(Hex): LGTV
Chassis MODEL NAME(HEX)
LA22E 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔChecksum(LG TV): Changeable by total EDID data.
ⓔ1ⓔ2ⓔ3
HDMI1 43 68 X
HDMI2 43 58 X
HDMI3 43 48 X
HDMI4 43 38 X
RGB X X 5C
ⓕ Vendor Specific(HDMI)
INPUT MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI2 78 03 0C 00 20 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI3 78 03 0C 00 30 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10
HDMI4 78 03 0C 00 40 00 80 2D 20 C0 0E 01 4F 00 FE
08 10 06 10 18 10 28 10 38 10

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5. Final Assembly Adjustment
5.1. White Balance Adjustment
5.1.1. Overview
5.1.1.1. W/B adj. Objective & How-it-works
(1) Objective: To reduce each Panel’s W/B deviation
(2) How-it-works: When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range. In order to
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192, and the other two is lowered to find
the desired value.
(3) Adj. condition: normal temperature
- Surrounding Temperature: 25±5 °C
- Warm-up time: About 5 Min
- Surrounding Humidity: 20% ~ 80%
- Before White balance adjustment, Keep power on status,
don’t power off
5.1.1.2. Adj. condition and cautionary items
(1) Lighting condition in surrounding area surrounding lighting
should be lower 10 lux. Try to isolate adj. area into dark
surrounding.
(2) Probe location: Color Analyzer (CA-210) probe should be
within 10cm and perpendicular of the module surface
(80°~ 100°)
(3) Aging time
- After Aging Start, Keep the Power ON status during 5
Minutes.
- In case of LCD, Back-light on should be checked using no
signal or Full-white pattern.
5.1.2. Equipment
(1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED:
CH14)
(2) Adj. Computer (During auto adj., RS-232C protocol is
needed)
(3) Adjust Remocon
(4) Video Signal Generator MSPG-925F 720p/204-Gray
(Model: 217, Pattern: 49)
※Color Analyzer Matrix should be calibrated using CS-1000
5.1.3. Equipment connection
5.1.4. Adjustment Command (Protocol)
(1) RS-232C Command used during auto-adj.
RS-232C COMMAND Explanation
CMD DATA ID
Wb 00 00 Begin White Balance adj.
Wb 00 ff End White Balance adj.
(internal pattern disappears )
(2) Adjustment Map
Adj. item Command
(lower caseASCII)
Data Range
(Hex.)
CMD1 CMD2 MIN MAX
Cool R Gain j g 00 C0
G Gain j h 00 C0
B Gain j i 00 C0
Medium R Gain j a 00 C0
G Gain j b 00 C0
B Gain j c 00 C0
Warm R Gain j d 00 C0
G Gain j e 00 C0
B Gain j f 00 C0
5.1.5. Adjustment method
5.1.5.1 Auto WB calibration
(1) Set TV in ADJ mode using P-ONLY key (or POWER ON
key)
(2) Place optical probe on the center of the display
- It need to check probe condition of zero calibration before
adjustment.
(3) Connect RS-232C Cable
(4) Select mode in ADJ Program and begin a adjustment.
(5) When WB adjustment is completed with OK message,
check adjustment status of pre-set mode (Cool, Medium,
Warm)
(6) Remove probe and RS-232C cable.
▪ W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need
5.1.6. Reference (White Balance Adj. coordinate and
color temperature)
(1) Luminance: 204 Gray, 80IRE
(2) Standard color coordinate and temperature using CS-1000
(over 26 inch)

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5.1.7. Reference (White Balance Adj. coordinate and
color temperature)
▪ Luminance: 204 Gray
▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
Mode Coordinate Temp △uv
X Y
Cool 0.269 0.273 13,000K 0.0000
Medium 0.285 0.293 9,300K 0.0000
Warm 0.313 0.329 6,500K 0.0000
▪ Standard color coordinate and temperature using
CA-210(CH 14)
(1) LGD and 65”AUO
Mode Coordinate Temp △uv
X Y
Cool 0.269±0.002 0.273±0.002 13,000K 0.0000
Medium 0.285±0.002 0.293±0.002 9,300K 0.0000
Warm 0.313±0.002 0.329±0.002 6,500K 0.0000
(2) O/S Module(AUO, CMI, Sharp,IPS…)
Mode Coordinate Temp △uv
X Y
Cool 0.271±0.002 0.276±0.002 13,000K 0.0000
Medium 0.287±0.002 0.296±0.002 9,300K 0.0000
Warm 0.315±0.002 0.332±0.002 6,500K 0.0000
▪ Standard color coordinate and temperature using
CA-210(CH-14) – by aging time
(1) Only Kumi factory in Korea
(2) Other factories(Only LS5700 series Module & 65LM6200-UA)
GP4 Aging time
(Min)
Cool Medium Warm
X Y X Y X Y
269 273 285 293 313 329
1 0-2 280 287 296 307 320 337
2 3-5 279 285 295 305 319 335
3 6-9 277 284 293 304 317 334
4 10-19 276 283 292 303 316 333
5 20-35 274 280 290 300 314 330
6 36-49 272 277 288 297 312 327
7 50-79 271 275 287 295 311 325
8 80-119 270 274 286 294 310 324
9 Over 120 269 273 285 293 309 323
5.2. Tool Option setting & Inspection per
countries
5.2.1. Overview
(1) Tool option selection is only done for models in Non-USA
North America due to rating
(2) Applied model: LA02D and LA02E Chassis applied to
CANADA and MEXICO
5.2.2. Country Group selection
(1) Press ADJ key on the Adj. R/C, and then select Country
Group Menu
(2) Depending on destination, select KR or US, then on the
lower Country option, select US, CA, MX.
Selection is done using +, - KEY
5.2.3. Tool Option Inspection
(1) Press ADJ key on the Adj. R/C, and then select Country Grou
Model Tool 1 Tool 2 Tool 3 Tool 4 Tool 5 Tool 6 Tool 7
32LS5700-UA 356 8259 9997 13006 21015 1322 8971
42LS5700-
UA(AUO)
4454 8259 9997 13006 21143 1322 13067
42LS5700-UA 358 8259 9997 13004 21015 1322 13067
47LS5700-
UA(AUO)
4455 8259 9997 13006 21143 1322 12555
47LS5700-UA 359 8259 9997 13004 21015 1322 12555
55LS5700-
UA(AUO)
4457 8259 9997 13006 21143 1321 12555
55LS5700-UA 361 8259 9997 13004 21015 1321 12555
60LS5700-
UA(Sharp)
39274 8259 9997 13006 21015 1321 12555
42LS5750-UB 358 8259 9997 13004 21015 1322 13067
42LS5750-
UB(AUO)
4454 8259 9997 13006 21143 1322 13067
47LS5750-UB 359 8259 9997 13004 21015 1322 12555
47LS5750-
UB(AUO)
4455 8259 9997 13006 21143 1322 12555
55LS5750-UB 361 8259 9997 13004 21015 1321 12555
55LS5750-
UB(AUO)
4457 8259 9997 13006 21143 1321 12555
60LS5750-
UB(Sharp)
39274 8259 9997 13006 21015 1321 12555
32LM6200-UE 116 8259 26381 13006 23063 1322 8971
42LM6200-UE 118 8259 26381 13004 23063 1322 13067
47LM6200-UE 119 8259 26381 13004 23063 1322 12555
55LM6200-UE 121 8259 26381 13004 23063 1321 12555
65LM6200-UB 36987 8259 26381 13006 23063 1321 12427
42LM6210-UD 118 8259 26381 13004 23063 1322 13067
47LM6210-UD 119 8259 26381 13004 23063 1322 12555
47LM6250-UD 119 8259 26381 13004 23063 1322 12555
55LM6250-UD 121 8259 26381 13004 23063 1321 12555
● Tool option can be reconstructed by Software

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Only for training and service purposes
5.3. 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.
<T120 Model>
<T240 Model>
※Except No local-dimming models
5.4. 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.
5.5. Magic Motion remote controller Check
5.5.1. 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.
5.5.2. Test
(1) Make pairing with TV set by pressing “Start key(Wheel
key)” on RCU.
(2) Check a cursor on screen by pressing ‘Wheel key” of RCU
(3) Stop paring with TV set by pressing “Back+ Home” key of
RCU
5.5.3. Applied models
Chassis Model Name Magic RF receiver
LA22E 32/42/47/55LS5700-UA Built-in
42/47/55/65LM6200-UA
32/42/47/55LS5700-UA
42/47/55LM6700-UA
47/55LM7600-UA
※LW5700-UE series: An USB dongle-type receiver will be
supplied in form of accessory. So this pairing test is not
necessary for these models.
5.6. Wi-Fi MAC Address Check
5.6.1. Using RS232 Command
Command Set ACK
Transmission [A][l][][Set ID][][20][Cr] [O][K][x] or [N][G]
5.6.2. Check the menu on in-start
<Step 2>
<Step 5> <Step 6>
<Step 3>
<Step 4>

- 17 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
5.7. 3D pattern test (Only for 3D models)
5.7.1. Test equipment
(1) Pattern Generator MSHG-600 or MSPG-6100 (HDMI 1.4
support)
(2) Pattern: HDMI mode (model No. 872, pattern No. 83)
5.7.2. 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>
5.8. HDMI ARC Function Inspection
5.8.1. Test equipment
- Optic Receiver Speaker
- MSHG-600 (SW: 1220 ↑)
- HDMI Cable (for 1.4 version)
5.8.2. 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
5.9. Ship-out mode check (In-stop)
▪ After final inspection, press In-Stop key of the Adj. R/C and
check that the unit goes to Stand-by mode

- 18 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
6. AUDIO output check
6.1. Audio input condition
(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1KHz sine wave signal (0.4Vrms)
(3) RGB PC: 1KHz sine wave signal (0.7Vrms)
6.2. Specification
No Item Min Typ Max Unit Remark
1 Audio
practical
max Output,
L/R
9.0
8.5
10.0
8.9
12.0
9.9
W
Vrms
(1) Measurement
condition
- EQ/AVL/Clear
Voice: Off
(2) Speaker (8Ω
Impedance)
7. GND and HI-POT Test
7.1. GND & HI-POT auto-check preparation
(1) Check the POWER CABLE and SIGNAL CABE insertion
condition
7.2. GND & HI-POT auto-check
(1) Pallet moves in the station. (POWER CORD / AV CORD is
tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process (Hi-pot test).
(Remove A/V CORD from A/V JACK BOX)
(5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next process
automatically.
7.3. Checkpoint
(1) Test voltage
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
(2) TEST time: 1 second
(3) TEST POINT
- GND Test = POWER CORD GND and SIGNAL CABLE GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
8. USB S/W Download
(optional, Service only)
(1) Put the USB Stick to the USB socket
(2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is lower
than that of TV set, it didn’t work. Otherwise USB data is
automatically detected.
(3) Show the message “Copying files from memory”
(5) Updating Completed, The TV will restart automatically
(6) If your TV is turned on, check your updated version and
Tool option.
* 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, TOOL OPTION setting is needed 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 model has their number.)
(4) Updating is staring.

- 19 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
9. Optional adjustments
9.1. Manual ADC Calibration
9.1.1. Equipment & Condition
(1) Adjustment Remocon
(2) 801GF (802B, 802F, 802R) or MSPG925FA Pattern
Generator
- Resolution : 480i Comp1 (MSPG-925FA: model-209,
pattern-65)
- Resolution : 1080p Comp1 (MSPG-925FA: model-225,
pattern-65)
- Resolution : 10 80p RGB (MSPG-92 5FA: model-22 5,
pattern-65)
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7±0.1 Vp-p
9.1.2. Adjust method
8.1.2.1 ADC 480i/1080p Comp1, RGB
(1) Check connected condition of Comp1/RGB cable to the
equipment
(2) Give a 480i Mode, Horizontal 100% Color Bar Pattern to
Comp1. (MSPG-925FA -> Model: 209, Pattern: 65)
(3) Change input mode as Component1 and picture mode as
“Standard”
(4) Press the In-start Key on the ADJ remote after at least 1
min of signal reception. Then, select 7.External ADC. And
Press OK or Right Button for going to sub menu.
(5) Press OK in Comp 480i menu
(6) Give a 1080p Mode, Horizontal 100% Color Bar Pattern to
Comp1. (MSPG-925FA -> Model: 225, Pattern: 65)
(7) Press OK in Comp 1080p menu
(8) Perform (6) and (7) in RGB-PC
(9) If ADC Comp is successful, “ADC Component Success” is
displayed. If ADC calibration is failure, “ADC Component
Fail” is displayed.
(10) If ADC calibration is failure, after rechecking ADC pattern
or condition, retry calibration
(11) If ADC RGB calibration is successful, “ADC RGB
Success” is displayed. If ADC calibration is failure, “ADC
RGB Fail” is displayed.
(12) If ADC calibration is failure, after recheck ADC pattern or
condition, retry calibration
9.2. Manual White balance Adjustment
9.2.1. Adj. condition and cautionary items
(1) Lighting condition in surrounding area surrounding lighting
should be lower 10 lux. Try to isolate adj. area into dark
surrounding.
(2) Probe location: Color Analyzer (CA-210) probe should be
within 10cm and perpendicular of the module surface
(80°~ 100°)
(3) Aging time
▪ After Aging Start, Keep the Power ON status during 5
Minutes.
▪ In case of LCD, Back-light on should be checked using no
signal or Full-white pattern.
9.2.2. Equipment
(1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED:
CH14)
(2) Adj. Computer (During auto adj., RS-232C protocol is
needed)
(3) Adjust Remocon
(4) Video Signal Generator MSPG-925F 720p/216-Gray
(Model: 217, Pattern: 78)
9.2.3. Adjustment
(1) Set TV in Adj. mode using POWER ON
(2) Zero Calibrate the probe of Color Analyzer, then place it on
the center of LCD module within 10cm of the surface.
(3) Press ADJ key -> EZ adjust using adj. R/C -> 6. White-
Balance then press the cursor to the right (KEY►).
When KEY(►) is pressed 216 Gray internal pattern will be
displayed.
(4) One of R Gain / G Gain / B Gain should be fixed at 192,
and the rest will be lowered to meet the desired value.
(5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of
color temperature.
▪ If internal pattern is not available, use RF input. In EZ Adj.
menu 6.White Balance, you can select one of 2 Test-pattern:
ON, OFF. Default is inner(ON). By selecting OFF, you can
adjust using RF signal in 216 Gray pattern.

- 20 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
SCREW WORKING GUIDE
■Screw specification and application situation
•FAB31339402
(M3*L4.5, BK, Machine)
•11EA
•FAB31339201
(M3*L10, BK, Taptite)
•8EA
•FAB30016122
(M4*L20, BK, Taptite)
•4EA
DD
D
D
C
C
A
AAA AA AA
AA
A
AAA
AA
AA
AA
B
B
CC CC CC CC CC C
CC
C
•FAB30078812
(M6*L10, BK, Machine)
4EA
BB
BB
BB
A
A
AC
※Warning
Check Screw Type When Screw is assembled
at Part. If Screw is used at the part
Module will get damaged
A
AC
※Warning
Check Screw Type When Screw is assembled
at Part. If Screw is used at the part
Module will get damaged
A