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LED LCD TV
SERVICE MANUAL
CHASSIS : LD03E

MODEL : 47LE7300 47LE7300-ZA
MODEL : 47LE730N 47LE730N-ZA
MODEL : 47LE7380 47LE7380-ZA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL63263214 (1008-REV00) Printed in Korea
CONTENTS

CONTENTS .............................................................................................. 2

PRODUCT SAFETY ..................................................................................3

SPECIFICATION ....................................................................................... 4

ADJUSTMENT INSTRUCTION ................................................................ 7

BLOCK DIAGRAM...................................................................................14

EXPLODED VIEW .................................................................................. 15

SVC. SHEET ...............................................................................................

Copyright © 2010 LG Electronics. Inc. All rights reserved. -2- LGE Internal Use Only
Only for training and service purposes
SAFETY PRECAUTIONS

IMPORTANT SAFETY NOTICE
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 Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
An isolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC Do not use a line Isolation Transformer during this check.
power line. Use a transformer of adequate power rating as this Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor
protects the technician from accidents resulting in personal injury between a known good earth ground (Water Pipe, Conduit, etc.)
from electrical shocks. and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
It will also protect the receiver and it's components from being with 1000 ohms/volt or more sensitivity.
damaged by accidental shorts of the circuitry that may be Reverse plug the AC cord into the AC outlet and repeat AC voltage
inadvertently introduced during the service operation. measurements for each exposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
If any fuse (or Fusible Resistor) in this TV receiver is blown, 0.5 mA.
replace it with the specified. In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
When replacing a high wattage resistor (Oxide Metal Film Resistor, repaired before it is returned to the customer.
over 1 W), keep the resistor 10 mm away from PCB.
Leakage Current Hot Check circuit
Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer, AC Volt-meter

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 Good Earth Ground
shock. such as WATER PIPE,
To Instrument's CONDUIT etc.
0.15 uF
Leakage Current Cold Check(Antenna Cold Check) exposed
With the instrument AC plug removed from AC source, connect an METALLIC PARTS
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 1.5 Kohm/10W
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc. When 25A is impressed between Earth and 2nd Ground
If the exposed metallic part has a return path to the chassis, the for 1 second, Resistance must be less than 0.1
measured resistance should be between 1 M and 5.2 M.
*Base on Adjustment standard
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.

Copyright © 2010 LG Electronics. Inc. All rights reserved. -3- LGE Internal Use Only
Only for training and service purposes
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.

1. Application range 3. Test method
This specification is applied to the LCD TV used LD03E 1) Performance: LGE TV test method followed
chassis. 2) Demanded other specification
- Safety : CE, IEC specification
2. Requirement for Test - EMC :CE, IEC
Each part is tested as below without special appointment.

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 100-240 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.

4. Module General Specification
No. Item Specification Remark
1 Display Screen Device 119 cm(47 inch) wide color display module LCD
2 Aspect Ratio 16:9
3 LCD Module 119 cm(47 inch) TFT LCD FHD LGD/ IOP
4 Operating Environment Temp. : 0 deg ~ 50 deg
Humidity : 20 % ~ 90 %
5 Storage Environment Temp. : -20 deg ~ 60 deg
Humidity : 10 ~ 90 %
6 Input Voltage AC 100-240V~, 50 / 60Hz
7 Power Consumption Power on (White)
LGD Typ : 103 LCD (Module) + Backlight(EDGE LED)
8 Module Size 1083.6(H) x 628.8(V) x 25.5 mm(D) With inverter
8 Pixel Pitch 0.5415 (H) x 0.5415 (V)
9 Back Light LED(EDGE), LGE(IOP)
10 Display Colors 1.06 B(true) colors
11 Coating 3H

Copyright © 2010 LG Electronics. Inc. All rights reserved. -4- LGE Internal Use Only
Only for training and service purposes
5. Module optical specification
No. Item Specification Min. Typ. Max. Remark
1. Viewing Angle10> Right/Left/Up/Down 89/89/89/89 CR > 10
2. Luminance Luminance (cd/m2) 360 450
Variation 1.3 MAX /MIN
3. Contrast Ratio CR 1000 1400
4. CIE Color Coordinates White Wx 0.279
Wy 0.292
RED Xr 0.636
Yr Typ. 0.335 Typ.
Green Xg -0.03 0.291 +0.03
Yg 0.603
Blue Xb 0.146
Yb 0.061

1) Stable for approximately 60 minutes in a dark environment at 25 ºC ± 2 ºC and windless room.
2) Operating Ambient Humidity: Min 10, Max 90 %RH
3) Suppl Voltage: 24 V
4) Frame Frequency: 120 Hz

6. Component Video Input (Y, CB/PB, CR/PR)
Specification
No. Remark
Resolution H-freq(kHz) V-freq(Hz)
1. 720x480 15.73 60.00 SDTV,DVD 480i
2. 720x480 15.63 59.94 SDTV,DVD 480i
3. 720x480 31.47 59.94 480p
4. 720x480 31.50 60.00 480p
5. 720x576 15.625 50.00 SDTV,DVD 625 Line
6. 720x576 31.25 50.00 HDTV 576p
7. 1280x720 45.00 50.00 HDTV 720p
8. 1280x720 44.96 59.94 HDTV 720p
9. 1280x720 45.00 60.00 HDTV 720p
10. 1920x1080 31.25 50.00 HDTV 1080i
11. 1920x1080 33.75 60.00 HDTV 1080i
12. 1920x1080 33.72 59.94 HDTV 1080i
13. 1920x1080 56.250 50 HDTV 1080p
14. 1920x1080 67.5 60 HDTV 1080p

Copyright © 2010 LG Electronics. Inc. All rights reserved. -5- LGE Internal Use Only
Only for training and service purposes
7. RGB (PC)
Specification
No. Proposed Remarks
Resolution H-freq(kHz) V-freq(Hz) Pixel Clock(MHz)
1. 720*400 31.468 70.08 28.321 For only DOS mode
2. 640*480 31.469 59.94 25.17 VESA Input 848*480 60 Hz, 852*480 60 Hz
-> 640*480 60 Hz Display
3. 800*600 37.879 60.31 40.00 VESA
4. 1024*768 48.363 60.00 65.00 VESA(XGA)
5. 1280*768 47.78 59.87 79.5 WXGA
6. 1360*768 47.72 59.8 84.75 WXGA
7. 1280*1024 63.595 60.0 108.875 SXGA FHD model
8. 1920*1080 66.587 59.93 138.625 WUXGA FHD model

8. HDMI Input
(1) DTV Mode
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark
1. 720*480 31.469 /31.5 59.94 /60 27.00/27.03 SDTV 480P
2. 720*576 31.25 50 54 SDTV 576P
3. 1280*720 37.500 50 74.25 HDTV 720P
4. 1280*720 44.96 /45 59.94 /60 74.17/74.25 HDTV 720P
5. 1920*1080 33.72 /33.75 59.94 /60 74.17/74.25 HDTV 1080I
6. 1920*1080 28.125 50.00 74.25 HDTV 1080I
7. 1920*1080 26.97 /27 23.97 /24 74.17/74.25 HDTV 1080P
8. 1920*1080 33.716 /33.75 29.976 /30.00 74.25 HDTV 1080P
9. 1920*1080 56.250 50 148.5 HDTV 1080P
10. 1920*1080 67.43 /67.5 59.94 /60 148.35/148.50 HDTV 1080P

(2) PC Mode
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark
1. 720*400 31.468 70.08 28.321 HDCP
2. 640*480 31.469 59.94 25.17 VESA HDCP
3. 800*600 37.879 60.31 40.00 VESA HDCP
4. 1024*768 48.363 60.00 65.00 VESA(XGA) HDCP
5. 1280*768 47.78 59.87 79.5 WXGA HDCP
6. 1360*768 47.72 59.8 84.75 WXGA HDCP
7. 1280*1024 63.595 60.0 108.875 SXGA HDCP/FHD model
8. 1920*1080 67.5 60.00 138.625 WUXGA HDCP/FHD model

Copyright © 2010 LG Electronics. Inc. All rights reserved. -6- LGE Internal Use Only
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range (3) Adjustment
1) Adjustment method
This specification sheet is applied to all of the LCD TV with - Using RS-232, adjust items listed in 3.1 in the other
LD03E chassis. shown in "3.1.(3).3)"

2) Adj. protocol
2. Designation Protocol Command Set ACK
(1) Because this is not a hot chassis, it is not necessary to use Enter adj. mode aa 00 00 a 00 OK00x
an isolation transformer. However, the use of isolation
Source change xb 00 40 b 00 OK40x (Adjust 480i Comp1 )
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order. xb 00 60 b 00 OK60x (Adjust 1024*768 RGB)
(3) The adjustment must be performed in the circumstance of Begin adj. ad 00 10
25 ºC ± 5 ºC of temperature and 65 % ±10 % of relative Return adj. result OKx (Case of Success)
humidity if there is no specific designation. NGx (Case of Fail)
(4) The input voltage of the receiver must keep AC 100-240
Read adj. data (main) (main)
V~ 50 / 60Hz.
ad 00 20 000000000000000000000000007c007b006dx
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over (sub) (Sub)
15. ad 00 21 000000070000000000000000007c00830077x
Confirm adj. ad 00 99 NG 03 00x (Fail)
In case of keeping module is in the circumstance of 0 °C, it NG 03 01x (Fail)
should be placed in the circumstance of above 15 °C for 2
NG 03 02x (Fail)
hours
OK 03 03x (Success)
In case of keeping module is in the circumstance of below - End adj. aa 00 90 a 00 OK90x
20 °C, it should be placed in the circumstance of above 15
°C for 3 hours.
Ref.) ADC Adj. RS232C Protocol_Ver1.0
[Caution]
When still image is displayed for a period of 20 minutes or 3) Adj. order
longer (especially where W/B scale is strong. Digital pattern - aa 00 00 [Enter ADC adj. mode]
13ch and/or Cross hatch pattern 09ch), there can some - xb 00 40 [Change input source to Component1(480i)]
afterimage in the black level area. - 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.
3. Automatic Adjustment
3.1. ADC Adjustment 3.2. MAC Address
(1) Overview (1) Equipment & Condition
ADC adjustment is needed to find the optimum black level - Play file: Serial.exe
and gain in Analog-to-Digital device and to compensate - MAC Address edit
RGB deviation. - Input Start / End MAC address

(2) Equipment & Condition (2) Download method
1) Jig (RS-232C protocol) 1) Communication Prot connection
2) MSPG-925 Series Pattern Generator(MSPG-925FA,
pattern - 65) PCBA PC(RS-232C)
- Resolution : 480i Comp1
1080P Comp1
1920*1080 RGB
- Pattern : Horizontal 100 % Color Bar Pattern RS-232C Po rt
- Pattern level : 0.7 ± 0.1 Vp-p
- Image
Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port

Copyright © 2010 LG Electronics. Inc. All rights reserved. -7- LGE Internal Use Only
Only for training and service purposes
2) MAC Address Download 3.4. LAN PORT INSPECTION(PING TEST)
- Com 1,2,3,4 and 115200(Baud rate) Connect SET -> LAN port == PC -> LAN Port
- Port connection button click(1)
SET PC
(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
(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

- Load button click(2) for MAC Address write.
- Start MAC Address write button(3)
- Check the OK Or NG

3.3. LAN
(1) Equipment & Condition
A Each other connection to LAN Port of IP Hub and Jig

3.5. V-COM Adjust(Only LGD(M+S) Module)
(2) LAN inspection solution - Why need Vcom adjustment?
A LAN Port connection with PCB
A The Vcom (Common Voltage) is a Reference Voltage of
A Network setting at MENU Mode of TV
Liquid Crystal Driving.
A setting automatic IP
-> Liquid Crystal need for Polarity Change with every frame.
A Setting state confirmation
Circuit Block
-> If automatic setting is finished, you confirm IP and
Data (R ,G,B ) & Ga mma
MAC Address. Cont rol si gnal Re f e r e nce V o ltage
Data (R ,G,B ) & C ont ro l s ignal
Ti m i n g
S Co nt r o ll e r
Gamm a Reference
In t e r f a ce

Cont rol si gnal Volta ge
Y Da t a I n p u t
So urce D r i v e I C
S
T Column Line
Pane l
Gat e Driv e IC

E Power r I n p u t
Po w e Input Po w e r V COM
Blo ck
M CLC CST
Liquid
Crys tal
V COM Row Li ne TFT

V COM

Copyright © 2010 LG Electronics. Inc. All rights reserved. -8- LGE Internal Use Only
Only for training and service purposes
- Adjust sequence 3.7. CI+ Key Download method
A Press the PIP key of the ADJ remote controller. (This PIP
(1) Download Procedure
key is hot key to enter the VCOM adjusting mode) 1) Press "Power on" button of a service R/C.(Baud rate :
(Or After enter Service Mode by pushing "ADJ" key, then 115200 bps)
Enter V-Com Adjust mode by pushing "G" key at "10. V- 2) Connect RS232-C Signal Cable.
Com") 3) Write CI+ Key through RS-232-C.
A As pushing the right or the left button on the remote
4) Check whether the key was downloaded or not at `In
controller, And find the V-COM value Which is no or Start' menu. (Refer to below).
minimized the Flicker.
(If there is no flicker at default value, Press the exit key
and finish the VCOM adjustment.)
A Push the OK key to store value. Then the message
"Saving OK" is pop.
A Press the exit key to finish VCOM adjustment.

[Visual Adjust and control the Voltage level]

3.6. Model name & serial number download
(1) Model name & Serial number D/L
A Press "Power on" key of service remocon.(Baud rate : => Check the Download to CI+ Key value in LGset.
115200 bps) 1. check the method of CI+ Key value
A Connect RS232 Signal Cable to RS-232 Jack. a. check the method on Instart menu
A Write Serial number by use RS-232. b. check the method of RS232C Command
A Must check the serial number at Instart menu. 1) into the main ass'y mode (RS232 : aa 00 00)
CMD 1 CMD 2 Data 0
(2) Method & notice
A. Serial number D/L is using of scan equipment. A A 0 0
B. Setting of scan equipment operated by Manufacturing
Technology Group. 2) check the key download for transmitted command
C.Serial number D/L must be conformed when it is (RS232 : ci 00 10)
produced in production line, because serial number D/L
CMD 1 CMD 2 Data 0
is mandatory by D-book 4.0
* Manual Download (Model Name and Serial Number) C I 1 0
If the TV set is downloaded by OTA or service man,
sometimes model name or serial number is initialized.(Not 3) result value
always) - normally status for download : OKx
There is impossible to download by bar code scan, so It - abnormally status for download : NGx
need Manual download.
a. Press the `instart' key of ADJ remote control. 2. Check the method of CI+ Key value (RS232)
b. Go to the menu `5.Model Number D/L' like below photo. 1) into the main ass'y mode (RS232 : aa 00 00)
c. Input the Factory model name(ex 42LD450-ZA) or Serial
CMD 1 CMD 2 Data 0
number like photo.
A A 0 0

2) Check the method of CI+ key by command (RS232 :
ci 00 20)
CMD 1 CMD 2 Data 0
C I 2 0

3) Result value
i 01 OK 1d1852d21c1ed5dcx
CI+ key Value
d. Check the model name Instart menu -> Factory name
displayed (ex 42LE7500-ZA)
e. Check the Diagnostics (DTV country only) -> Buyer model
displayed (ex 42LE7500-ZA)

Copyright © 2010 LG Electronics. Inc. All rights reserved. -9- LGE Internal Use Only
Only for training and service purposes
4. Manual Adjustment 4.2. EDID(The Extended Display Identification
4.1. ADC(GP2) Adjustment Data)/DDC(Display Data Channel) download
4.1.1. Overview (1) Overview
ADC adjustment is needed to find the optimum black level and It is a VESA regulation. A PC or a MNT will display an
gain in Analog-to-Digital device and to compensate RGB optimal resolution through information sharing without any
deviation. necessity of user input. It is a realization of "Plug and Play".

(2) Equipment
4.1.2. Equipment & Condition - Adjust remote control
(1) Adjust Remocon - Since embedded EDID data is used, EDID download JIG,
(2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern HDMI cable and D-sub cable are not need.
Generator
- Resolution : (3)Download method
480i, 720*480 (MSPG-925FA -> Model: 209, Pattern: 65) 1) Press Adj. key on the Adj. R/C, then select "10.EDID
- 480i D/L", By pressing Enter key, enter EDID D/L menu.
1080p, 1920*1080 (MSPG-925FA -> Model: 225, Pattern: 2) Select [Start] button by pressing Enter key, HDMI1 /
65) - 1080p HDMI2 / HDMI3 / HDMI4 / RGB are Writing and display
- Pattern : Horizontal 100% Color Bar Pattern OK or NG.
- Pattern level: 0.7 ± 0.1 Vp-p
- Image For Analog EDID For HDMI EDID
D-sub to D-sub DVI-D to HDMI or HDMI to HDMI

(3) Must use standard cable (4) EDID DATA
A HDMI
4.1.3. Adjust method
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
(1) ADC 480i, 1080p Comp1
0x00 00 FF FF FF FF FF FF 00 1E 6D
1) Check connected condition of Comp1 cable to the equipment
0x01 01 03 80 10 09 78 0A EE 91 A3 54 4C 99 26
2) Give a 480i, 1080p Mode, Horizontal 100% Color Bar
0x02 0F 50 54 A1 08 00 71 4F 81 80 01 01 01 01 01 01
Pattern to Comp1.
0x03 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
(MSPG-925FA -> Model: 209, Pattern: 65) - 480i 0x04 45 00 A0 5A 00 00 00 1E 01 1D 00 72 51 D0 1E 20
(MSPG-925FA -> Model: 225, Pattern: 65) - 1080p 0x05 6E 28 55 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A
3) Change input mode as Component1 and picture mode 0x06 3E 1E 53 10 00 0A 20 20 20 20 20 20
as "Standard" 0x07 01
4) Press the In-start Key on the ADJ remote after at least 1 0x00 02 03 26 F1 4E 10 1F 84 13 05 14 03 02 12 20 21
min of signal reception. Then, select 7. External ADC -> 0x01 22 15 01 26 15 07 50 09 57 07 67
1. COMP 1080p on the menu. Press enter key. The 0x02 E3 05 03 01 01 1D 80 18 71 1C 16 20 58 2C
adjustment will start automatically. 0x03 25 00 A0 5A 00 00 00 9E 01 1D 00 80 51 D0 0C 20
5) If ADC calibration is successful, "ADC RGB Success" is 0x04 40 80 35 00 A0 5A 00 00 00 1E 02 3A 80 18 71 38
displayed. 0x05 2D 40 58 2C 45 00 A0 5A 00 00 00 1E 66 21 50 B0
If ADC calibration is failure, "ADC RGB Fail" is displayed. 0x06 51 00 1B 30 40 70 36 00 A0 5A 00 00 00 1E 00 00
6) If ADC calibration is failure, after recheck ADC pattern or 0x07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01
condition retry calibration Error message refer to 5).
A RGB
(2) ADC 1920*1080 RGB
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
1) Check connected condition of Component & RGB cable
0x00 00 FF FF FF FF FF FF 00 1E 6D
to the equipment
0x01 01 03 68 10 09 78 0A EE 91 A3 54 4C 99 26
2) Give a 1920*1080 Mode, 100 % Horizontal Color Bar
0x02 0F 50 54 A1 08 00 81 80 61 40 45 40 31 40 01 01
Pattern to RGB port.
0x03 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
(MSPG-925 Series -> model:126 , pattern:65 )
0x04 45 00 A0 5A 00 00 00 1E 01 1D 00 72 51 D0 1E 20
3) Change input mode as RGB and picture mode as "Standard". 0x05 6E 28 55 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A
4) Press the In-start Key on the ADJ remote after at least 1 0x06 3E 1E 53 10 00 0A 20 20 20 20 20 20
min of signal reception. Then, select 7. External ADC -> 0x07 00
1. COMP 1080p on the menu. Press enter key. The
adjustment will start automatically. A Reference
5) If ADC calibration is successful, "ADC RGB Success" is - HDMI1 ~ HDMI4 / RGB
displayed. - In the data of EDID, bellows may be different by S/W or
If ADC calibration is failure, "ADC RGB Fail" is displayed. Input mode.
6) If ADC calibration is failure, after recheck ADC pattern or
condition retry calibration Error message refer to 5).

Copyright © 2010 LG Electronics. Inc. All rights reserved. - 10 - LGE Internal Use Only
Only for training and service purposes
Product ID 4.3.4. Adj. Command (Protocol)
Model Name HEX EDID Table DDC Function
LEN CMD VAL CS
FHD Model 0001 01 00 Analog
FHD Model 0001 01 00 Digital - LEN: Number of Data Byte to be sent
- CMD: Command
Serial No. : Controlled on product line - VAL: FOS Data value
Month, Year: Controlled on production line: - CS: Checksum of sent data
ex) Monthly : `01' -> `01' - A: Acknowledge
Year : `2010' -> `14' Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
Model Name(Hex):
A RS-232C Command used during auto-adj.
MODEL MODEL NAME(HEX)
RS-232C COMMAND Explanation
all 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
[CMD ID DATA]
Checksum: Changeable by total EDID data.
wb 00 00 Begin White Balance adj.
Vendor Specific(HDMI)
wb 00 10 Gain adj.(internal white pattern)
INPUT MODEL NAME(HEX)
wb 00 1f Gain adj. completed
HDMI1 67 03 0C 00 10 00 B8 2D
wb 00 20 Offset adj.(internal white pattern)
HDMI2 67 03 0C 00 20 00 B8 2D
wb 00 2f Offset adj. completed
HDMI3 67 03 0C 00 30 00 B8 2D
wb 00 ff End White Balance adj.(Internal pattern disappears)
HDMI4 67 03 0C 00 40 00 B8 2D
HDMI5 67 03 0C 00 50 00 B8 2D Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
4.3. White Balance Adjustment jb 00 c0
...
4.3.1 Overview ...
(1) W/B adj. Objective & How-it-works wb 00 1f -> Gain adj. completed
(2) Objective: To reduce each Panel's W/B deviation *(wb 00 20(Start), wb 00 2f(completed)) -> Off-set adj.
(3) How-it-works : When R/G/B gain in the OSD is at 192, it wb 00 ff -> End white balance auto-adj.
means the panel is at its Full Dynamic Range. In order to
prevent saturation of Full Dynamic range and data, one of A Adj. Map
R/G/B is fixed at 192, and the other two is lowered to find
the desired value. ITEM Command Data Range Default
(4) Adj. condition : normal temperature (Hex.) (Decimal)
1) Surrounding Temperature : 25 ºC ± 5 ºC Cmd 1 Cmd 2 Min Max
2) Warm-up time: About 5 Min Cool R-Gain j g 00 C0
3) Surrounding Humidity : 20 % ~ 80 %
G-Gain j h 00 C0
B-Gain j i 00 C0
4.3.2 Equipment
1) Color Analyzer: CA-210 (LED Module : CH 14) R-Cut
2) Adj. Computer(During auto adj., RS-232C protocol is G-Cut
needed) B-Cut
3) Adjust Remocon Medium R-Gain j a 00 C0
4) Video Signal Generator MSPG-925F 720p/216-Gray
G-Gain j b 00 C0
(Model:217, Pattern:78)
B-Gain j c 00 C0
-> Only when internal pattern is not available
R-Cut
A Color Analyzer Matrix should be calibrated using CS-1000 G-Cut
B-Cut
4.3.3. Equipment connection MAP Warm R-Gain j d 00 C0
G-Gain j e 00 C0
Co lo r Analyzer
B-Gain j f 00 C0
Probe RS -232C
R-Cut
Co m p ut er
RS -232C G-Cut
RS -232C

Pat t ern Generat o r
Signal Source

* If TV internal pattern is used, not needed

Copyright © 2010 LG Electronics. Inc. All rights reserved. - 11 - LGE Internal Use Only
Only for training and service purposes
4.3.5. Adj. method A Standard color coordinate and temperature using CA-
(1) Auto adj. method 210(CH 9)
1) Set TV in adj. mode using POWER ON key. Mode Color Coordination Temp UV
2) Zero calibrate probe then place it on the center of the
Display. x y
3) Connect Cable (RS-232C) COOL 0.269 ± 0.002 0.273 ± 0.002 13000 K 0.0000
4) Select mode in adj. Program and begin adjustment.
MEDIUM 0.285 ± 0.002 0.293 ± 0.002 9300 K 0.0000
5) When adj. is complete (OK Sing), check adj. status pre
mode. (Warm, Medium, Cool) WARM 0.313 ± 0.002 0.329 ± 0.002 6500 K 0.0000
6) Remove probe and RS-232C cable to complete adj.

A W/B Adj. must begin as start command "wb 00 00" , and 4.4. EYE-Q function check
finish as end command "wb 00 ff", and Adj. offset if need. Step 1) Turn on TV
Step 2) Press EYE key of Adj. R/C
(2) Manual adj. method Step 3) Cover the Eye Q II sensor on the front of the using
1) Set TV in Adj. mode using POWER ON your hand and wait for 6 seconds
2) Zero Calibrate the probe of Color Analyzer, then place it Step 4) Confirm that R/G/B value is lower than 10 of the "Raw
on the center of LCD module within 10cm of the surface. Data (Sensor data, Back light)". If after 6 seconds,
3) Press ADJ key -> EZ adjust using adj. R/C -> 7. White- R/G/B value is not lower than 10, replace Eye Q II
Balance then press the cursor to the right (KEY G). sensor.
(When KEY(G) is pressed 216 Gray internal pattern will Step 5) Remove your hand from the Eye Q II sensor and wait
be displayed) for 6 seconds.
4) One of R Gain / G Gain / B Gain should be fixed at 192, Step 6) Confirm that "ok" pop up. If change is not seen,
and the rest will be lowered to meet the desired value. replace Eye Q II sensor.
5) Adj. is performed in COOL, MEDIUM, WARM 3 modes
of color temperature.

A If internal pattern is not available, use RF input. In EZ
Adj. menu 7.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.

A 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
4.5. Local Dimming Function Check
- After Aging Start, Keep the Power ON status during Step 1) Turn on TV.
5 Minutes. Step 2) Press Tilt key of Adj. R/C.
- In case of LCD, Back-light on should be checked Step 3) Confirm under the screen.
using no signal or Full-white pattern.

4.3.6. Reference (White Balance Adj. coordinate
and temperature)
A Luminance : 216 Gray
A Standard color coordinate and temperature using CS-1000
(over 26 inch)
Mode Color Coordination Temp UV
x y
COOL 0.269 0.273 13000 K 0.0000
MEDIUM 0.285 0.293 9300 K 0.0000
WARM 0.313 0.329 6500 K 0.0000

Copyright © 2010 LG Electronics. Inc. All rights reserved. - 12 - LGE Internal Use Only
Only for training and service purposes
4.6. Option selection per country 6. Audio
(1) Overview
- Option selection is only done for models in Non-EU No. Item Min. Typ. Max. Unit
- Applied model: LD03D/03E Chassis applied EU model 1. Audio practical max 9.0 10.0 12.0 W EQ Off
Output, L/R AVL Off
(2) Method
1) Press ADJ key on the Adj. R/C, then select Country (Distortion=10% 8.5 8.9 9.8 Vrms Clear Voice Off
Group Menu max Output)
2) Depending on destination, select Country Group Code
2. Speaker (8 10.0 15.0 W EQ On
04 or Country Group EU then on the lower Country
option, select US, CA, MX. Selection is done using +, - Impedance) AVL On
or GF KEY. Clear Voice On

4.7. Tool Option selection Measurement condition:
- Method : Press Adj. key on the Adj. R/C, then select Tool 1. RF input: Mono, 1 KHz sine wave signal, 100 % Modulation
option. 2. CVBS, Component: 1 KHz sine wave signal 0.4 Vrms
3. RGB PC: 1 KHz sine wave signal 0.7 Vrms
MODEL Tool 1 Tool 2 Tool 3 Tool 4 Tool 5

47LE7300 33056 31795 64556 22958 2066
7. USB S/W Download (option, Service only)
1) Put the USB Stick to the USB socket
4.8. Ship-out mode check(In-stop) 2) Automatically detecting update file in USB Stick
After final inspection, press IN-STOP key of the Adj. R/C and - If your downloaded program version in USB Stick is Low,
check that the unit goes to Stand-by mode. it didn't work. But your downloaded version is High, USB
After final inspection, Always turn on the Mechanical S/W. data is automatically detecting
3) Show the message "Copying files from memory"

5. GND and Internal Pressure check
5.1. Method
1) GND & Internal Pressure auto-check preparation
- Check that Power Cord is fully inserted to the SET.
(If loose, re-insert)
2) Perform GND & Internal Pressure auto-check
- Unit fully inserted Power cord, Antenna cable and A/V
arrive to the auto-check process.
- Connect D-terminal to AV JACK TESTER
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST
- If NG, Buzzer will sound to inform the operator.
- If OK, changeover to I/P check automatically.
(Remove CORD, A/V form AV JACK BOX) 4) Updating is starting.
- Perform I/P test
- If NG, Buzzer will sound to inform the operator.
- If OK, Good lamp will lit up and the stopper will allow the
pallet to move on to next process.

5.2. Checkpoint
· TEST voltage
- GND: 1.5 KV/min at 100 mA
- SIGNAL: 3 KV/min at 100 mA
· TEST time: 1 second 5) Updating Completed, The TV will restart automatically
· TEST POINT 6) If your TV is turned on, check your updated version and
- GND TEST = POWER CORD GND & SIGNAL CABLE Tool option. (explain the Tool option, next stage)
METAL GND * If downloading version is more high than your TV have,
- Internal Pressure TEST = POWER CORD GND & LIVE & TV can lost all channel data. In this case, you have to
NEUTRAL channel recover. if all channel data is cleared, you didn't
· LEAKAGE CURRENT: At 0.5 mArms have a DTV/ATV test on production line.

* After downloading, have to adjust TOOL OPTION again.
1. Push "IN-START" key in service remote control.
2. Select "Tool Option 1" and Push "OK" button.
3. Punch in the number. (Each model has their number.)

Copyright © 2010 LG Electronics. Inc. All rights reserved. - 13 - LGE Internal Use Only
Only for training and service purposes
BLOCK DIAGRAM

Copyright © 2010 LG Electronics. Inc. All rights reserved. - 14 - LGE Internal Use Only
Only for training and service purposes
EXPLODED VIEW
IMPORTANT SAFETY NOTICE
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.

710
400

521

A7
540
801

530
LV2

803
LV1

910

900
802

* Stand Base * Stand + Set
A10
200

+ Stand Body
810

A9
A5
122
120

A21
A2
500
300

510
501

Copyright LG Electronics. Inc. All rights reserved. - 15 - LGE Internal Use Only
Only for training and service purposes