LG 42LM7600-CA Schematic

Internal Use Only

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LED LCD TV

SERVICE MANUAL

CHASSIS : LC22E

MODEL : 42LM7600

MODEL :

CAUTION

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

42LM7600-CA

Printed in ChinaP/NO : MFL67360907(1203-REV00)

CONTENTS

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

SAFETY PRECAUTIONS ........................................................................ 3

SERVICING PRECAUTIONS ................................................................... 4

SPECIFICATION ...................................................................................... 5

ADJUSTMENT INSTRUCTION ............................................................... 9

BLOCK DIAGRAM ................................................................................. 17

EXPLODED VIEW .................................................................................. 19

SCHEMA

TIC CIRCUIT DIAGRAM ..............................................................

Only for training and service purposes

- 2 -

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

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 MΩ 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 exp ose d metallic par t. 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

Only for training and service purposes

- 3 -

SERVICING PRECAUTIONS

CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda, read and follow the

SAFETY PRECAUTIONS on page 3 of this publication. NOTE: If unforeseen circumstances create conict between the

following servicing precautions and any of the safety precautions on page 3 of this publication, always follow the safety precautions. Remember: Safety First.

General Servicing Precautions

1. Always unplug the receiver AC power cord from the AC power source before;

a. Removing or reinstalling any component, circuit board mod-

ule or any other receiver assembly.

b. Disconnecting or reconnecting any receiver electrical plug or

other electrical connection.

c. Connecting a test substitute in parallel with an electrolytic

capacitor in the receiver. CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard.

2. Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device (DVM, FETVOM, etc) equipped with a suitable high voltage probe. Do not test high voltage by "drawing an arc".

3. Do not spray chemicals on or near this receiver or any of its assemblies.

4. Unless specied otherwise in this service manual, clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner, cotton-tipped stick or comparable non-abrasive applicator; 10 % (by volume) Acetone and 90 % (by volume) isopropyl alcohol (90 % - 99 % strength) CAUTION: This is a ammable mixture. Unless specied otherwise in this service manual, lubrication of contacts in not required.

5. Do not defeat any plug/socket B+ voltage interlocks with which receivers covered by this service manual might be equipped.

6. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all solid-state device heat sinks are correctly installed.

7. Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead. Always remove the test receiver ground lead last.

8. Use with this receiver only the test xtures specied in this service manual. CAUTION: Do not connect the test xture ground strap to any heat sink in this receiver.

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some eld-effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage caused by static by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed to prevent potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static type solder removal device. Some solder removal devices not classied as “anti-static” can generate electrical charges sufcient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted oor can generate static electricity sufcient to damage an ES device.)

General Soldering Guidelines

1. Use a grounded-tip, low-wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range or 500 °F to 600 °F.

2. Use an appropriate gauge of RMA resin-core solder composed of 60 parts tin/40 parts lead.

3. Keep the soldering iron tip clean and well tinned.

4. Thoroughly clean the surfaces to be soldered. Use a mall wirebristle (0.5 inch, or 1.25 cm) brush with a metal handle. Do not use freon-propelled spray-on cleaners.

5. Use the following unsoldering technique

a. Allow the soldering iron tip to reach normal temperature.

(500 °F to 600 °F) b. Heat the component lead until the solder melts. c. Quickly draw the melted solder with an anti-static, suction-

type solder removal device or with solder braid.

CAUTION: Work quickly to avoid overheating the circuit

board printed foil.

6. Use the following soldering technique. a. Allow the soldering iron tip to reach a normal temperature

(500 °F to 600 °F)

b. First, hold the soldering iron tip and solder the strand against

the component lead until the solder melts.

c. Quickly move the soldering iron tip to the junction of the

component lead and the printed circuit foil, and hold it there only until the solder ows onto and around both the component lead and the foil. CAUTION: Work quickly to avoid overheating the circuit board printed foil.

d. Closely inspect the solder area and remove any excess or

splashed solder with a small wire-bristle brush.

Only for training and service purposes

- 4 -

IC Remove/Replacement

Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent at against the circuit foil. When holes are the slotted type, the following technique should be used to remove and replace the IC. When working with boards using the familiar round hole, use the standard technique as outlined in paragraphs 5 and 6 above.

Removal

1. Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts.

2. Draw away the melted solder with an anti-static suction-type solder removal device (or with solder braid) before removing the IC.

Replacement

1. Carefully insert the replacement IC in the circuit board.

2. Carefully bend each IC lead against the circuit foil pad and solder it.

3. Clean the soldered areas with a small wire-bristle brush. (It is not necessary to reapply acrylic coating to the areas).

"Small-Signal" Discrete Transistor Removal/Replacement

1. Remove the defective transistor by clipping its leads as close as possible to the component body.

2. Bend into a "U" shape the end of each of three leads remaining on the circuit board.

3. Bend into a "U" shape the replacement transistor leads.

4. Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the "U" with long nose pliers to insure metal to metal contact then solder each connection.

Power Output, Transistor Device Removal/Replacement

1. Heat and remove all solder from around the transistor leads.

2. Remove the heat sink mounting screw (if so equipped).

3. Carefully remove the transistor from the heat sink of the circuit board.

4. Insert new transistor in the circuit board.

5. Solder each transistor lead, and clip off excess lead.

6. Replace heat sink.

Diode Removal/Replacement

1. Remove defective diode by clipping its leads as close as possible to diode body.

2. Bend the two remaining leads perpendicular y to the circuit board.

3. Observing diode polarity, wrap each lead of the new diode around the corresponding lead on the circuit board.

4. Securely crimp each connection and solder it.

5. Inspect (on the circuit board copper side) the solder joints of the two "original" leads. If they are not shiny, reheat them and if necessary, apply additional solder.

3. Solder the connections. CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures.

Circuit Board Foil Repair

Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or "lift-off" the board. The following guidelines and procedures should be followed whenever this condition is encountered.

At IC Connections

To repair a defective copper pattern at IC connections use the following procedure to install a jumper wire on the copper pattern side of the circuit board. (Use this technique only on IC connections).

1. Carefully remove the damaged copper pattern with a sharp knife. (Remove only as much copper as absolutely necessary).

2. carefully scratch away the solder resist and acrylic coating (if used) from the end of the remaining copper pattern.

3. Bend a small "U" in one end of a small gauge jumper wire and carefully crimp it around the IC pin. Solder the IC connection.

4. Route the jumper wire along the path of the out-away copper pattern and let it overlap the previously scraped end of the good copper pattern. Solder the overlapped area and clip off any excess jumper wire.

At Other Connections

Use the following technique to repair the defective copper pattern at connections other than IC Pins. This technique involves the installation of a jumper wire on the component side of the circuit board.

1. Remove the defective copper pattern with a sharp knife. Remove at least 1/4 inch of copper, to ensure that a hazardous condition will not exist if the jumper wire opens.

2. Trace along the copper pattern from both sides of the pattern break and locate the nearest component that is directly connected to the affected copper pattern.

3. Connect insulated 20-gauge jumper wire from the lead of the nearest component on one side of the pattern break to the lead of the nearest component on the other side. Carefully crimp and solder the connections. CAUTION: Be sure the insulated jumper wire is dressed so the it does not touch components or sharp edges.

Fuse and Conventional Resistor Removal/Replacement

1. Clip each fuse or resistor lead at top of the circuit board hollow stake.

2. Securely crimp the leads of replacement component around notch at stake top.

Only for training and service purposes

- 5 -

SPECIFICATION

NOTE : Specifications and others are subject to change without notice for improvement

1. Application range

This specification is applied to the LCD TV used LC22E

chassis.

2. Requirement for Test

Each part is tested as below without special appointment.

1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C

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 20 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

- Wireless : Wireless HD Specification (Option)

4. Model General Specification

No. Item Remarks

1. Market

2. Broadcasting system

Receiving system

CHINA , HONG KONG (PAL/DVB Market)

1) PAL/SECAM-B/G/D/K

2) PAL-I/II

3) NTSC-M

4) DVB-T

Analog : Upper Heterodyne Digital : COFDM(DVB-T)

► DTMB

( Carrier , Code Rate , Constellation , Frame Header , Interleaving )*. China

- MODE1 : 3780 , 0.4 , 16QAM , PN945 , 720 , 9.626Mbps

- MODE2 : 1 , 0.8 , 4QAM , PN595 , 720 , 10.396Mbps

- MODE3 : 3780 , 0.6 , 16QAM , PN945 , 720 , 14.438Mbps

- MODE4 : 1 , 0.8 , 16QAM , PN595 , 720 , 20.791Mbps

- MODE5 : 3780 , 0.8 , 16QAM , PN420 , 720 , 21.658Mbps

- MODE6 : 3780 , 0.6 , 64QAM , PN420 , 720 , 24.365Mbps

- MODE7 : 1 , 0.8 , 32QAM , PN595 , 720 , 25.989Mbps *. HONG KONG

- MODE : 3780 , 0.4/0.6 , 4/16/64QAM , PN945 , 720 QPSK : 1/2, 2/3, 3/4, 5/6, 7/8 16-QAM : 1/2, 2/3, 3/4, 5/6, 7/8 64-QAM : 1/2, 2/3, 3/4, 5/6, 7/8

► DVB-C

- Symbolrate :

4.0Msymbols/s to 7.2Msymbols/s

- Modulation : 16QAM, 64-QAM, 128-QAM and 256-QAM

4 Video Input RCA(1EA)

5. Component Input Y/Cb/Cr, Y/Pb/Pr

6. RGB Input RGB-PC Analog(D-SUB 15PIN)

7. HDMI Input

8. Audio Input

9. SPDIF out SPDIF out 10 USB Input

11 Lan Jack

HDMI1-DTV/DVI,HDMI2-DTV/DVI HDMI3-DTV/DVI,HDMI4-DTV/DVI

Component

RGB/DVI Audio

FEMF, DivX HD, For SVC (download)

AV gender jack 1EA

PC(HDMI version 1.3) Support HDCP

L/R Input

JPEG, MP3, DivX HD

- 6 -

Only for training and service purposes

5. Component Video Input (Y, Cb/Pb, Cr/Pr)

No. Resolution H-freq(kHz) V-freq(Hz) Porposed

1 720×480 15.73 60.00 SDTV, DVD 480i

2 720×480 15.63 59.94 SDTV, DVD 480i

3 720×480 31.47 59.94 480p

4 720×480 31.50 60.00 480p

5 720×576 15.625 50.00 SDTV, DVD 625 Line

6 720×576 31.25 50.00 HDTV 576p

7 1280×720 45.00 50.00 HDTV 720p

8 1280×720 44.96 59.94 HDTV 720p

9 1280×720 45.00 60.00 HDTV 720p

10 1920×1080 31.25 50.00 HDTV 1080i

11 1920×1080 33.75 60.00 HDTV 1080i

12 1920×1080 33.72 59.94 HDTV 1080i

13 1920×1080 56.250 50 HDTV 1080p

14 1920×1080 67.5 60 HDTV 1080p

6. RGB input (PC)

No. Resolution H-freq(kHz) V-freq.(Hz) Proposed Remark

720*400 31.468 70.08 VESA(VGA) For only DOS mode

640*480 31.469 59.94 VESA(SVGA)

800*600 37.879 60.31 VESA(XGA)

1024*768 48.363 60.00 VESA

1360*768 47.72 59.8 VESA(WXGA)

1920*1080 66.587 59.93

WUXGA(CEA 861D)

Input 848*480 60Hz, 852*480 60Hz

->640*480 60Hz Display

FHD only

Only for training and service purposes

- 7 -

7. HDMI Input

7.1. DTV mode

No. Resolution H-freq(kHz) V-freq.(kHz) Proposed Proposed

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

7.2. PC mode

No. Resolution H-freq(kHz) V-freq.(Hz) Proposed Remark

1 31.468 70.08

720 x 400

640 x 480

800 x 600 1024 x 768

4 5

1360 x 768 1280 x 1024

6 63.595 60.0

1920 x 1080 67.5

31.469 59.94 VESA

37.879 60.31 VESA

48.363

47.712 59.8

60.00

60.0

VESA(XGA) WXGA

SXGA

WUXGA

HDCP HDCP HDCP

HDCP

HDCP HDCP / FHD model

HDCP / FHD model

Only for training and service purposes

- 8 -

ADJUSTMENT INSTRUCTION

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.

1. Application Range

This specification sheet is applied to all of the LED LCD TV with LC22E chassis.

2. Designation

(1) ecause 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.

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.

3.3. Etc

▪Ship-out mode ▪Service Option Default ▪USB Download(S/W Update, Option, Service only) ▪ISP Download(Option)

4.Automatic Adjustment

■ Enter Service Mode by pushing “ADJ” key,

■ Enter ADC mode by pushing “► key at “8. ADC Calibration”

■ There are 2 ways for ADC Calibration. ( OTP, External )

*. OTP mode

: Automatic ADC Calibration. (Internal ADC Calibration) On the

manufacture line, OTP is used for ADC Calibration automatically. *. External mode : Manual ADC Calibration. When OTP mode is failed, ADC calibration should be “OK” by using External mode.

4.1. Final assembly adjustment

1. Change the ADC type “OTP” by using “►”key.

2. Enter “Start” key.

3. Check the sign “OK” below ADC type.

3. Adjustment items

3.1 Main PCB check process

▪MAC Address Download ▪Wide-Vine Key Download ▪Adjust 1920*1080 Comp1 ▪Adjust 1920*1080 RGB ▪EDID/DDC download

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.

3.2. Final assembly adjustment

▪White Balance adjustment ▪RS-232C functionality check ▪ PING Test ▪Factory Option setting per destination ▪Ship-out mode setting (In-Stop)

4.1.2 External ADC Adjustment

Overview

ADC adjustment is needed to find the optimum black level and gain

in Analog-to-Digital device and to compensate RGB deviation.

Equipment & Condition

1) USB to RS-232C Jig

2) MSPG-925 Series Pattern Generator(MSPG-925FA, pattern -65)

- Resolution: 1080P Comp1 1920*1080P RGB

- Pattern : Horizontal 100% Color Bar Pattern

- Pattern level : 0.7±0.1 Vp-p

- Image

Adjustment method

▪ Using USB, adjust items listed in 3.1 in the other shown in “4.1.3.3”

Only for training and service purposes

- 9 -

Adj. protocol

Protocol

Command

Set ACK Enter adj. mode

aa 00 00

a 00 OK00x Source change

xb 00 04

xb 00 06

b 00 OK04x (Adjust 480i, 1080p Comp1 ) b 00 OK06x (Ad

just 1920*1080 RGB)

Begin adj.

ad 00 10 Return adj. result

OKx (Case of Success) NGx (Case of Fail)

Read adj. data

(main) ad 00 20

(sub )

ad 00 21

(main) 000000000000000000000000007c007b006dx

(Sub) 000000070000000000000000007c00830077x

Confirm adj

ad 00 99

NG 03 00x (Fail) NG 03 01x (Fail) NG 03 02x (Fail) OK 03 03x (Success)

End adj.

aa 00 90

a 00 OK90x

4.2.3 WIDEVINE Key Inspection

Ref.) ADC Adj. RS232C Protocol_Ver1.0

Adj. order

▪aa 00 00 [Enter ADC adj. mode] ▪xb 00 04 [Change input source to Component1(480i&1080p)] ▪ad 00 10 [Adjust 480i&1080p Comp1] ▪xb 00 06 [Change input source to RGB(1024*768)] ▪ad 00 10 [Adjust 1920*1080 RGB] ▪aa 00 90 End adj.

. WIDEVINE Key Inspection

- Confirm Key input Data at the “IN START” MENU Mode

4.3 LAN PORT INSPECTION(PING TEST)

Ref) ADC adj. RS232C Protocol_Ver1.0

4.2 LAN Inspection

4.2.1 Equipment & Condition

▪ Each other connection to LAN Port of IP Hub and Jig。

4.2.2 LAN inspection solution

LAN Port connection with PCB

▪ Network setting at MENU Mode of TV ▪ setting automatic IP ▪ Setting state confirmation

If automatic setting is finished, you confirm IP and MAC Address.

Only for training and service purposes

4.4.1. 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

4.4.2. 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

- 10 -

4.3 Model name & Serial number

Command

Set ACK T

ransmission

[A][l][][Set ID][][20][Cr]

[O][K][x] or [N][G]

For Analog EDID For HDMI EDID

D-sub to D-sub

DVI-D to HDMI or HDMI to HDMI

Download

4.3.1 Model name & Serial number D/L

■ Press “Power on” key of service remocon.(Baud rate : 115200 bps)

■ Connect RS-232C Signal to USB Cable to USB.

■ Write Serial number by use USB port.

■ Must check the serial number at Instart menu.

b. check the menu on in-start

4.3.2 Method & notice

A. Serial number D/L is using of scan equipment. B. Setting of scan equipment operated by Manufacturing

Technology Group.

C. Serial number D/L must be conformed when it is produced in production line, because serial number D/L is mandatory by D-book 4.0

* Manual Download (Model Name and Serial Number)

If the TV set is downloaded By OTA or Service man,

Sometimes model name or serial number is initialized.( Not always)

There is impossible to download by bar code scan, so It need

Manual download.

a. Press the ‘instart’ key of ADJ remote controller. b. Go to the menu ‘5.Model Number D/L’ like below photo. c. Input the Factory model name(ex 47LM6200-CC) or Serial number like photo.

5. Manual Adjustment

5.1. ADC adjustment is not needed because\ of OTP(Auto ADC adjustment)

5.2. EDID (The Extended Display Identification Data) / DDC (Display Data Channel) download

5.2.1 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”.

5.2.2 Equipment

▪ Since embedded EDID data is used, EDID download JIG, HDMI cable and D-sub cable are not need. ▪ Adjust remocon

5.2.3 Download method

1) Press Adj. key on the Adj. R/C, then select “12.EDID D/L”. By pressing Enter key, enter EDID D/L menu.

2) Select [Start] button by pressing Enter key, HDMI1 / HDMI2 / HDMI3 / HDMI4 / RGB are Writing and display OK or NG.

d. Check the model name Instart menu -->Factory name displayed (ex 47LM62000-CA) e. Check the Diagnostics (DTV country only) --> Buyer model displayed (ex 47LM6200-CC)

4.4 WIFI MAC ADDRESS CHECK

a. Using RS232 Command

Only for training and service purposes

- 11 -

RGB_EDID DATA *Vendor Specific(HDMI)DATA

HEX

EDID Table

DDC

Function

0001

0100

Analog

0001

0100

Digital

Chassis

MODEL NAME(HEX)

LD22E

00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 20

ⓔ1

ⓔ2

ⓔ3

HDMI1

HDMI2

HDMI3

HDMI4

RGB X X

INPUT

MODEL NAME(HEX)

HDMI1

78 03 0C 00 10 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10

HDMI2

78 03 0C 00 20 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10

HDMI3

78 03 0C 00 30 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10

HDMI4

78 03 0C 00 40 00 B8 2D 20 C0 0E 01 40 0A 3C 08 10 18 10 98 10 58 10 38 10

Color Analyzer

Computer

Pattern Generator

※

※If TV internal pattern is used, not needed

Signal Source

Probe

RS-232C

USB to RS-232C

0x00 0x 01 0x0 2 0x 03 0 x04 0 x05 0 x06 0x07 0x08 0x0 9 0x0A 0x0B 0x 0C 0x0D 0x 0E 0x0 F 0x00 00 FF FF FF FF FF FF 00 1E 6D a b 0x01 c 01 03 68 A0 5A 78 0A EE 91 A3 54 4 C 99 26 0x02 0F 50 54 A1 08 00 31 40 4 5 40 61 40 71 40 81 80 0x03 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 5 8 2C 0x04 45 00 A0 5 A 00 00 00 1E 66 21 5 0 B0 51 00 1B 30 0x05 40 70 36 0 0 A0 5A 00 0 0 00 1E 00 00 00 FD 00 3A 0x06 3E 1E 53 10 00 0A 20 20 2 0 20 2 0 20 d 0x07 d 00 e3

5.3 White Balance Adjustment

5.2.4 EDID DATA

▪Reference

- HDMI1 ~ HDMI4 / RGB

- In the data of EDID, bellows may be different by S/W or Input mode.

*Product ID

Serial No: Controlled on production line.

*Month, Year: Controlled on production line: ex) Monthly : ‘01’ -〉 ‘01’

3D FHD RGB EDID data

0x00 0x 01 0x0 2 0x 03 0 x04 0 x05 0 x06 0x07 0x08 0x0 9 0x0A 0x0B 0x 0C 0x0D 0x 0E 0x0 F 0x00 00 FF FF FF FF FF FF 00 1E 6D a b 0x01 c 01 03 8 0 A0 5A 78 0A EE 91 A3 54 4 C 99 26 0x02 0F 50 54 A1 08 00 31 40 4 5 40 61 40 71 40 81 80 0x03 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 5 8 2C 0x04 45 00 A0 5 A 00 00 00 1E 66 21 5 0 B0 51 00 1B 30 0x05 40 70 36 0 0 A0 5A 00 0 0 00 1E 00 00 00 FD 00 3A 0x06 3E 1E 53 10 00 0A 20 20 2 0 20 2 0 20 d 0x07 d 01 e1

0x00 02 03 0x01 22 15 01 26 15 07 50 09 57 07 f 0x02 f 0x03 f E3 05 03 01 02 3A 80 18 71 38 2D 40 58 0x04 2C 45 00 A0 5A 00 00 00 1E 01 1D 80 18 71 1C 16 0x05 20 58 2C 25 00 A0 5A 00 00 00 9E 01 1D 00 7 2 51 0x06 D0 0x07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e2

37 F1 4E 10 9F 04 13 05 14 03 02 12 20 21

1E 20 6E 28 55 00 A0 5A 00 00 00 1E 00 00 00

5.3.1 Overview

▪ W/B adj. Objective & How-it-works

- Objective: To reduce each Panel’s W/B deviation

- 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.

-Adj. condition : normal temperature

2) Warm-up time: About 5 Min

3) Surrounding Humidity: 20% ~ 80%

5.3.2 Equipment

1) Color Analyzer: CA-210 (LED Module : CH 14)

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) → Only when internal pattern is not available ▪Color Analyzer Matrix should be calibrated using CS-100。

5.3.3 Equipment connection MAP

*Model Name(Hex): LGTV

*Checksum(LG TV): Changeable by total EDID data.

Only for training and service purposes

5.3.4 Adj. Command (Protocol)

<Command Format> START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS A STOP

- LEN: Number of Data Byte to be sent

- CMD: Command

- VAL: FOS Data value

- CS: Checksum of sent data

- A: Acknowledge Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX] ▪RS-232C Command used during auto-adj.

- 12 -

5.4 EYE-Q function check

Aging time

Cool

Medium

Warm

(Min) x y x y x y

GP4

269

273

285

293

313

329

0-2

283

293

299

313

320

339

3-5

282

291

298

311

319

337

6-9

281

290

297

310

318

336

10-19

279

289

295

309

316

335

20-35

277

284

293

304

314

330

36-49

274

279

290

299

311

325

50-79

271

277

287

297

308

323

80-119

270

274

286

294

307

320

Over 120

269

273

285

293

306

319

-equipment : RF Remocon for test, IR-KEY-Code Remocon for test

-You must confirm the battery power of RF-Remocon before test (recommend that change the battery per every lot)

-Sequence (test) a)if you select the ‘start key(OK)’ on the controller, you can pairing with the TV SET. b)You can check the cursor on the TV Screen, when select the ‘OK Key’ on the controller c) You must remove the pairing with the TV Set by ‘Mute + OK Key’ on the controller。

5.7 3D function test

Step 1) Turn on TV Step 2) Press EYE key of Adj. R/C Step 3) Cover the Eye Q II sensor on the front of the using your hand and wait for 6 seconds Step 4) Confirm that R/G/B value is lower than 10 of the “Raw Data (Sensor data, Back light )” . If after 6 seconds, R/G/B value is not lower than 10, replace Eye Q II sensor Step 5) Remove your hand from the Eye Q II sensor and wait for 6 seconds Step 6) Confirm that “ok” pop up. s If change is not seen, replace Eye Q II sensor

5.5 Local Dimming Function Check

Step 1) Turn on TV Step 2) At the Local Dimming mode, module Edge Backlight moving right to left Back light of IOP module moving Step 3) confirm the Local Dimming mode Step 4) Press “exit” Key.

(Pattern Generator MSHG-600, MSPG-6100 [SUPPORT HDMI1.4]) * HDMI mode NO. 872 , pattern No.83

1) Please input 3D test pattern like below (HDMI mode NO. 872 , pattern No.83)

2.When 3D OSD appear automatically , then select green button.

3. Don’t wear a 3D Glasses, Check the picture like below .

5.6 Magic Motion Remocon test

Only for training and service purposes

5.8 3D Depth function TEST

5.9 Wi-Fi Test(LM6200 not support Wi-Fi)

5.10 LNB voltage and 22KHz tone check (only for DVB-S/S2 model)

Test method

- 13 -

1. Set TV in Adj. mode using POWER ON.

2. Connect cable between satellite ANT and test JIG.

4. Press Yellow Key (ETC+SWAP) in Adj Remocon to make LNB on.

5. check LED light ‘ON’ at 18V menu.

6. check LED light ‘ON’ at 22KHz tone menu.

7. Press Blue Key (ETC+PIP INPUT) in Adj Remocon to make LNB off.

8. check LED light ‘OFF’ at 18V menu.

9. check LED light ‘OFF’ at 22KHz tone menu. Test result

1. After press LNB On key, ‘18V LED’ and ‘22KHz tone LED’ should be ON.

2. After press LNB OFF key, ‘18V LED’ and ‘22KHz tone LED’ should be OFF.

6.2.2 Checkpoint

▪ TEST voltage

- GND: 1.5KV/min at 100mA

- SIGNAL: 3KV/min at 100mA ▪ TEST time: 1 second ▪ TEST POINT

- GND TEST = POWER CORD GND & SIGNAL CABLE METAL GND

- Internal Pressure TEST = POWER CORD GND & LIVE & NEUTRAL ▪ LEAKAGE CURRENT: At 0.5mArms.

7. Audio

5.11 Option selection per country

5.11.1 Overview

▪ Option selection is only done for models in Non-EU

5.11.2 Method

1) Press ADJ key on the Adj. R/C, then select Country Group Meun

2) Depending on destination, select Country Group Code 04 or Country Group EU then on the lower Country option, select US, CA,

6.0 Tool Option selection

Method: Press Adj. key on the Adj. R/C, then select Tool option.

▪

6.1 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.

6.2 GND and Internal Pressure check

6.2.1 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)

- 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.

No Item Min Typ Max Unit Remark

Audio practical max

Output, L/R (Distortion=10% max Output)

Speaker (8Ω Impedance)

9 10 12 W

8.10 10.8 Vrms

10 12 W EQ On

AVL Off

Clear Voice Off

AVL On

Clear Voice On

EQ Off

Measurement condition:

1. RF input: Mono, 1KHz sine wave signal, 100% Modulation

2. CVBS, Component: 1KHz sine wave signal 0.5Vrms

3. RGB PC: 1KHz sine wave signal 0.7Vrms.

8.1 SET Factoring Condition

No. Item Condition Remark

Power

2. Volume Level 10

3. Main Picture Input

4. Main Last Channel N.A.

5. Mute Off

6. ARC 16:9(DTV) Energy Saving 3D Settings

7. PICTURE Picture Mode

Off

DTV

Auto

Standard Backlight Energy Saving

Contrast 100 Brightness 50 Sharpness 25

Colour 60

Tint 0

Colour Temp 0

DTV&ATV

Only for training and service purposes

- 14-

Sound Mode

Standard

Stanard

Music

Cinema

Sport

Game

Vivid

User setting

User EQ

Auto Volume

Off

Volume Mode

Volume Control

Medium

Dynamic EQ

Natural Sound

Bass Enhancer

Sound Optimizer

Normal Infinite Surround

Clear Voice II

Off

AV sync.

Off DTV Audio Setting

Auto

ARC Mode

Off

Balance

TV Speaker

AUDIO

Audio Setting

Digital Audio Out

PCM Auto Tuning Manual Tuning

DTV/TV

Programme Edit

DTV/Radio/TV

SETUP (DTV&ATV)

CI information

Module

Clock

-- : --

User control

Off time

Off

On time

Off

Sleep Timer

Off

10.

Time

Automatic Standby

4 hours

Product/Service Info. Initialization of Premium

Set Password

New * * * * Confirm * * * *

Off

Block Programme

DTV/RADIO/TV

Parental Guidance

Blocking Off

11.

LOCK Lock System

Input Block

Menu Language

English

Audio Language

English

Language

Subtitle Language

English

Country

- -

Hard of Hearing

Off

Audio Description

Off

Volume

Disability Assistance

Beep

Off

Stand by Light

Power Indicator

Power Light

Speed

Normal

Shape

Type D

Size

Medium

Pointer

Alignment

Factory Reset Set ID 1

12.

OPTION

Mode Setting

Home Use Network Connection Network Status Wi-Fi Direct / Wi-Fi Screen

13.

Network

Smart Share Setting Software Update Picture Test Sound Test

14.

SUPPORT

Signal Test

Energy Saving

Auto

3D Settings

Standard Backlight

Energy Saving

Contrast

100

Brightness

Sharpness

Colour

Tint

Colour Temp

0 Dynamic Contrast

Medium

Dynamic Colour

Low

Clear White

off

Skin Colour

Grass Color

Sky Color

0 Noise Reduction

Low

Super Resolution

MPEG Noise Reduction

Medium

Gamma

Medium Black Level

Auto

Eye Care

Low Real Cinema

Colour Gamut

Wide

xvYCC

Off

Picture Mode

Picture Reset

PICTURE

Aspect Ratio

16:9

Only for training and service purposes

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