LG 60LN57 User Manual

Internal Use Only

North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com

LED TV

SERVICE MANUAL

CHASSIS : LD33B

MODEL : 60LN57** 60LN57**-ZE

CAUTION

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

Printed in KoreaP/NO : MFL67727131 (1305-REV00)

CONTENTS

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

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

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

SPECIFICATION ....................................................................................... 6

ADJUSTMENT INSTRUCTION .............................................................. 14

BLOCK DIAGRAM ................................................................................. 21

EXPLODED VIEW .................................................................................. 22

SCHEMATIC 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 th e cir cuitry 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

module 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 LED TV used LD33B 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

ea ch drawing and s pe cificatio n b y p art 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

4. Model General Specification

No. Item Specication Remarks

1 Market EU(PAL Market-37Countries) DTV & Analog (Total 37 countries)

DTV (MPEG2/4, DVB-T) : 29 countries

Germany, Netherland, Switzerland, Hungary, Austria, Slovenia, Bulgaria, France, Spain, Italy, Belgium, Luxemburg, Greece, Czech, Croatia, Turkey, Moroco, Ireland, Latvia, Estonia, Lithuania, Poland, Portugal, Romania, Albania, Bosnia, Serbia, Slovakia, Beralus

DTV (MPEG2/4, DVB-T2): 8 countries

UK(Ireland), Sweden, Denmark, Finland, Norway, Ukraine, Kazakhstan, Russia

DTV (MPEG2/4, DVB-C): 37 countries

Germany, Netherland, Switzerland, Hungary, Austria, Slovenia, Bulgaria, France, Spain, Italy, Belgium, Russia, Luxemburg, Greece, Czech, Croatia, Turkey, Moroco, Ireland, Latvia, Estonia, Lithuania, Poland, Portugal, Romania, Albania, Bosnia, Serbia, Slovakia, Beralus, UK, Sweden, Denmark, Finland, Norway, Ukraine, Kazakhstan

DTV (MPEG2/4,DVB-S): 30 countries

Supported satellite : 22 satellites

HISPASAT 1C/1D, ATLANTIC BIRD 2, NILESAT 101/102, ATLANTIC BIRD 3, AMOS 2/3, THOR 5/6, IRIUS 4, EUTELSAT-W3A, EUROBIRD 9A, EUTELSAT-W2A, HOTBIRD 6/8/9, EUTELSAT-SESAT, ASTRA 1L/H/M/ KR, ASTRA 3A/3B, BADR 4/6, ASTRA 2D, EUROBIRD 3, EUTELSAT-W7, HELLASSAT 2, EXPRESS AM1, TURKSAT 2A/3A, INTERSAT10

Only for training and service purposes

- 6 -

No. Item Specication Remarks

1) PAL-BG

2) PAL-DK

3) PAL-I/I’

2 Broadcasting system

3 Program coverage

4 Receiving system

4) SECAM-L/L', DK , BG, I

5) DVB-T

6) DVB-C

7) DVB-T2

8) DVB-S/S2 1 ) Digital TV

- VHF, UHF

- C-Band,Ku-Band

2) Analogue TV

- VHF : E2 to E12

- UHF : E21 to E69

- CATV : S1 to S20

- HYPER : S21 to S47

Analog : Upper Heterodyne Digital : COFDM, QAM

Model : *L*V*-Z* (T2 only Model)

DVB-S: Satellite

► DVB-T

- Guard Interval(Bitrate_Mbit/s) 1/4, 1/8, 1/16, 1/32

- Modulation : Code Rate 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-T2 (Model : *L*V*-Z* (T2 only Model))

- Guard Interval(Bitrate_Mbit/s) 1/4, 1/8, 1/16, 1/32, 1/128, 19/128, 19/256,

- Modulation : Code Rate QPSK : 1/2, 2/5, 2/3, 3/4, 5/6 16-QAM : 1/2, 2/5, 2/3, 3/4, 5/6 64-QAM : 1/2, 2/5, 2/3, 3/4, 5/6 256-QAM : 1/2, 2/5, 2/3, 3/4, 5/6

► DVB-C

- Symbolrate : 4.0Msymbols/s to 7.2Msymbols/s

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

► DVB-S/S2

- symbolrate DVB-S2 (8PSK / QPSK) : 2 ~ 45Msymbol/s DVB-S (QPSK) : 2 ~ 45Msymbol/s

- viterbi DVB-S mode : 1/2, 2/3, 3/4, 5/6, 7/8 DVB-S2 mode : 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10

5 Scart (1EA) PAL, SECAM

6 Video Input RCA(1EA) PAL, SECAM, NTSC

7 Head phone out

8 Component Input (1EA)

9 HDMI Input (3EA)

10 Audio Input (3EA)

11 SDPIF out (1EA) SPDIF out 12 USB (1EA) EMF, DivX HD, For SVC (download) JPEG, MP3, DivX HD 13 Ethernet Connect(1EA) Ethernet Connect

Antenna, AV1, AV2, Component, HDMI1, HDMI2, HDMI3, USB1, USB2, USB3

Y/Cb/Cr Y/Pb/Pr

HDMI1-DTV HDMI2-DTV HDMI3-DTV

DVI Audio Component/AV2 AV1

Scart 1 Jack is Full scart and support ATV/DTV-OUT (not support DTV Auto AV)

4 System : PAL, SECAM, NTSC, PAL60 Common port

Hybrid Type

HDMI1: PC support(HDMI version 1.3) Support HDCP

L/R Input.

Only for training and service purposes

- 7 -

5. Component Video Input (Y, Pb, Pr)

No. Resolution H-freq(kHz) V-freq(Hz) Pixel clock

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 576i

6. 720×576 31.25 50.00 SDTV 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

Only for training and service purposes

- 8 -

6. HDMI Input

6.1. DTV mode

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz)

1. 640*480 31.469 / 31.5 59.94/60 SDTV 480P

2. 720*480 31.469 / 31.5 59.94 / 60 SDTV 480P

3. 720*576 31.25 50 SDTV 576P

4. 720*576 15.625 50 SDTV 576I

5. 1280*720 37.500 50 HDTV 720P

6. 1280*720 44.96 / 45 59.94 / 60 HDTV 720P

7. 1920*1080 33.72 / 33.75 59.94 / 60 HDTV 1080I

8. 1920*1080 28.125 50.00 HDTV 1080I

9. 1920*1080 26.97 / 27 23.97 / 24 HDTV 1080P

10. 1920*1080 25 HDTV 1080P

11. 1920*1080 33.716 / 33.75 29.976 / 30.00 HDTV 1080P

12. 1920*1080 56.250 50 HDTV 1080P

13. 1920*1080 67.43 / 67.5 59.94 / 60 HDTV 1080P

6.2. PC mode

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz)

1 640 x 350 @70Hz 31.468 70.09 EGA

2 720 x 400 @70Hz 31.469 70.08 DOS

3 640 x 480 @60Hz 31.469 59.94 VESA(VGA)

4 800 x 600 @60Hz 37.879 60.31 VESA(SVGA)

5 1024 x 768 @60Hz 48.363 60.00 VESA(XGA)

6 1152 x 864 @60Hz 54.348 60.053 VESA

7 1280 x 1024 @60Hz 63.981 60.020 VESA(SXGA)

8 1360 x 768 @60Hz 47.712 60.015 VESA(WXGA)

9 1920 x 1080 @60Hz 67.5 60.00 WUXGA(Reduced Blanking)

10. 1920*1080 25 HDTV 1080P

11. 1920*1080 33.716 / 33.75 29.976 / 30.00 HDTV 1080P

12. 1920*1080 56.250 50 HDTV 1080P

13. 1920*1080 67.43 / 67.5 59.94 / 60 HDTV 1080P

Only for training and service purposes

- 9 -

7. 3D Mode

7.1. HDMI 1.4b (3D supported mode automatically)

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) VIC 3D input proposed mode Proposed

640*480

2 62.938/63 59.94/ 60 50.35/50.4 1

3 31.469 / 31.5 59.94/ 60 50.35/50.4 1 Side-by-side(Full) (SDTV 480P)

720*480

5 62.938/63 59.94 / 60 54/54.06 2,3

6 31.469 / 31.5 59.94 / 60 54/54.06 2,3 Side-by-side(Full) (SDTV 480P)

720*576

8 62.5 50 54 17,18

9 31.25 50 54 17,18 Side-by-side(Full) (SDTV 576P)

720*576

11 31.25 50 54 21

12 15.625 50 54 21 Side-by-side(Full) (SDTV 576I)

14 75 50 148.5 19

15 37.500 50 148.5 19 Side-by-side(Full) (HDTV 720P)

1280*720

16 44.96 / 45 59.94 / 60 74.18/74.25 4

17 89.91/90 59.94 / 60 148.35/148.5 4

18 44.96 / 45 59.94 / 60 148.35/148.5 4 Side-by-side(Full) (HDTV 720P)

20 67.432 / 67.50 59.94 / 60 148.35/148.5 5

21 33.72 / 33.75 59.94 / 60 148.35/148.5 5 Side-by-side(Full) (HDTV 1080I)

1920*1080

22 28.125 50.00 74.25 20

23 56.25 50.00 148.5 20

24 28.125 50.00 148.5 20 Side-by-side(Full) (HDTV 1080I)

26 43.94/54 23.97 / 24 148.35/148.5 32

27 26.97 / 27 23.97 / 24 148.35/148.5 32 Side-by-side(Full) (HDTV 1080P)

28 28.125 25 74.25 33

29 56.24 25 148.5 33

1920*1080

30 28.12 25 148.5 33 Side-by-side(Full) (HDTV 1080P)

31 33.716 / 33.75 29.976 / 30.00 74.18/74.25 34

32 67.432 / 67.5 29.976 / 30.00 148.35/148.5 34

33 33.716 / 33.75 29.976 / 30.00 148.35/148.5 34 Side-by-side(Full) (HDTV 1080P)

34 56.250 50 148.5 31

35 67.43 / 67.5 59.94 / 60 148.35/148.50 16

31.469 / 31.5 59.94/ 60 25.125 1

31.469 / 31.5 59.94 / 60 27.00/27.03 2,3

31.25 50 27 17,18

15.625 50 27 21

37.500 50 74.25 19

33.72 / 33.75 59.94 / 60 74.18/74.25 5

26.97 / 27 23.97 / 24 74.18/74.25 32

Top-and-Bottom Side-by-side(half)

Frame packing Line alternative

Top-and-Bottom Side-by-side(half)

Frame packing Line alternative

Top-and-Bottom Side-by-side(half)

Frame packing Line alternative

Top-and-Bottom Side-by-side(half)

Frame packing Field alternative

Top-and-Bottom Side-by-side(half)

Frame packing Line alternative

Top-and-Bottom Side-by-side(half)

Frame packing Line alternative

Top-and-Bottom Side-by-side(half)

Frame packing Field alternative

Top-and-Bottom Side-by-side(half)

Frame packing Field alternative

Top-and-Bottom Side-by-side(half)

Frame packing Line alternative

Top-and-Bottom Side-by-side(half)

Frame packing Line alternative

Top-and-Bottom Side-by-side(half)

Frame packing Line alternative

Top-and-Bottom Side-by-side(half)

Secondary(SDTV 480P) Secondary(SDTV 480P)

Secondary(SDTV 480P) (SDTV 480P)

Secondary(SDTV 480P) Secondary(SDTV 480P)

Secondary(SDTV 480P) (SDTV 480P)

Secondary(SDTV 576P) Secondary(SDTV 576P)

Secondary(SDTV 576P) (SDTV 576P)

Secondary(SDTV 576I) Secondary(SDTV 576I)

Secondary(SDTV 576I) (SDTV 576I)

Primary(HDTV 720P) Primary(HDTV 720P)

Primary(HDTV 720P) (HDTV 720P)

Primary(HDTV 720P) Primary(HDTV 720P)

Primary(HDTV 720P) (HDTV 720P)

Secondary(HDTV 1080I) Primary(HDTV 1080I)

Primary(HDTV 1080I) (HDTV 1080I)

Secondary(HDTV 1080I) Primary(HDTV 1080I)

Primary(HDTV 1080I) (HDTV 1080I)

Primary(HDTV 1080P) Primary(HDTV 1080P)

Primary(HDTV 1080P) (HDTV 1080P)

Secondary(HDTV 1080P) Secondary(HDTV 1080P)

Secondary(HDTV 1080P) (HDTV 1080P)

Primary(HDTV 1080P) Secondary(HDTV 1080P)

Primary(HDTV 1080P) (HDTV 1080P)

Primary(HDTV 1080P) Secondary(HDTV 1080P)

Only for training and service purposes

- 10 -

7.2. HDMI Input(1.3)

No. Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Proposed 3D input proposed mode

1 1280*720 45.00 60.00 74.25 HDTV 720P

2 1280*720 37.500 50 74.25 HDTV 720P

3 1920*1080 33.75 60.00 74.25 HDTV 1080I

4 1920*1080 28.125 50.00 74.25 HDTV 1080I

5 1920*1080 27.00 24.00 74.25 HDTV 1080P

6 1920*1080 28.12 25 74.25 HDTV 1080P

7 1920*1080 33.75 30.00 74.25 HDTV 1080P

8 1920*1080 67.50 60.00 148.5 HDTV 1080P

9 1920*1080 56.25 50 148.5 HDTV 1080P

2D to 3D, Side by Side(half), Top & Bottom, Single Frame Sequential

2D to 3D, Side by Side(half), Top & Bottom

2D to 3D, Side by Side(Half), Top & Bottom, Checker Board

2D to 3D, Side by Side(half), Top & Bottom, Checkerboard, Single Frame Sequential, Row Interleaving, Column Interleaving

7.3. RF Input(3D supported mode manually)

No. Resolution Proposed 3D input proposed mode

2D to 3D Side by Side(Half) Top & Bottom

2D to 3D

1 HD

2 SD

1080I

720P

576P

576I

7.4. RF Input (3D supported mode automatically)

No. Signal 3D input proposed mode

1 Frame Compatible

Side by Side(Half), Top & Bottom

7.5. USB Input (3D supported mode manually)

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode

2D to 3D, Side by Side(Half)*,

1 1920*1080 33.75 30 74.25 HDTV 1080P

640*350 720*400

Others - - -

(“*” 3D supported mode manually & automatically)

640*480 800*600 1152*864 1280*1024

Top & Bottom*, Checkerboard*,

Row Interleaving, Column Interleaving (Photo : side by Side(half), Top & Bottom)

2D to 3D

Only for training and service purposes

- 11 -

7.6. HDMI-PC Input (3D supported mode manually)

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode Proposed

1 1024*768 48.36 60 65

2 1360*768 47.71 60 85.5

2D to 3D, Side by Side(half) Top & Bottom

HDTV 768P

2D to 3D, Side by Side(half) Top & Bottom, Checker Board,

3 1920*1080 67.500 60 148.50

Single Frame Sequential,

HDTV 1080P Row Interleaving, Column Interleaving

640*350

720*400

4 Others - - - 2D to 3D

640*480

800*600

1152*864

7.7. DLNA Input (3D supported mode manually)

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode

2D to 3D, Side by Side(Half)*,Top &

1 1920*1080 33.75 30 74.25

(“*” 3D supported mode manually & automatically)

Bottom*,Checker Board*, Row Interleav-

ing, Column Interleaving(Photo : Side by Side(Half), Top&Bottom)

7.8. Component Input(3D) (3D supported mode manually)

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock Proposed 3D input proposed mode

1 1280*720 45.00 60.00 74.25 HDTV 720P

2 1280*720 37.500 50 74.25 HDTV 720P

3 1920*1080 33.75 60.00 74.25 HDTV 1080I

4 1920*1080 28.125 50.00 74.25 HDTV 1080I

5 1920*1080 27.00 24.00 74.25 HDTV 1080P

2D to 3D, Side by Side(Half), Top & Bottom

6 1920*1080 28.12 25 74.25 HDTV 1080P

7 1920*1080 33.75 30.00 74.25 HDTV 1080P

8 1920*1080 67.50 60.00 148.5 HDTV 1080P

9 1920*1080 56.250 50 148.5 HDTV 1080P

7.9. 3D Input mode

No. Side by Side Top & Bottom Checker board

ii.

iii.

Single Frame

Sequential

iv.

Frame

Packing

vi.

2D to 3D

Only for training and service purposes

- 12 -

ADJUSTMENT INSTRUCTION

1. Application Range

This specification sheet is applied to all of the LED TV with LD33B chassis.

2. Designation

(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 °C ± 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 AC 100-240

V~, 50/60 Hz. (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.

[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.

3.2. LAN Inspection

3.2.1. Equipment & Condition

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

3.2.2. LAN inspection solution

▪ LAN Port connection with PCB ▪ Setting automatic IP

▪ If you want manual connection, enter Network connection at

MENU Mode of TV. Press Start connection key, then Network will be connected.

3. Automatic Adjustment

3.1. MAC address D/L, CI+ key D/L, Widevine key D/L, ESN D/L, HDCP14/20 D/L

Connect: USB port Communication Prot connection ▪ Com 1,2,3,4 and 115200(Baudrate) Mode check: Online Only ▪ Check the test process: DETECT -> MAC -> CI -> Widevine

-> ESN -> HDCP14 -> HDCP20 ▪ Play: Press Enter key ▪ Result: Ready, Test, OK or NG ▪ Printer Out (MAC Address Label)

▪ Setting state confirmation

- If automatic setting is finished, you confirm IP and MAC Address at ‘in start’ menu mode.



Only for training and service purposes

- 13 -

3.2.3. WIDEVINE key Inspection

- Confirm key input data at the "IN START" MENU Mode.



3.3. LAN PORT INSPECTION(PING TEST)

Connect SET → LAN port == PC → LAN Port

SET PC

3.3.1. 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

3.4. Model name & Serial number Download

3.4.1. Model name & Serial number D/L

▪ Press "P-ONLY" key of service remote control.

(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.

3.4.2. Method & notice

(1) Serial number D/L is using of scan equipment. (2) Setting of scan equipment operated by Manufacturing

Technology Group.

(3) 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) It is impossible to download by bar code scan, so It need Manual download.

1) Press the "Instart" key of Adjustment remote control.

2) Go to the menu "7.Model Number D/L" like below photo.

3) Input the Factory model name(ex 42LA690V-ZA) or Serial

number like photo.

3.3.2. 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.

4) Check the model name Instart menu. → Factory name

displayed. (ex 42LA690V-ZA)

5) Check the Diagnost ics.(DTV country only) → Buyer

model displayed. (ex 42LA690V-ZA)

3.5. CI+ Key checking method

- Check the Section 3.1 Check whether the key was downloaded or not at ‘In Start’ menu. (Refer to below).

=> Check the Download to CI+ Key value in LGset.

Only for training and service purposes

- 14 -

3.5.1. Check the method of CI+ Key value

(1) Check the method on Instart menu (2) Check the method of RS232C Command

1) Into the main ass’y mode(RS232: aa 00 00)

CMD 1 CMD 2 Data 0

A A 0 0

2) Check the key download for transmitted command (RS232: ci 00 10)

CMD 1 CMD 2 Data 0

C I 1 0

3) Result value

- Normally status for download : OKx

- Abnormally status for download : NGx

3.5.2. Check the method of CI+ key value(RS232)

1) Into the main ass’y mode(RS232: aa 00 00)

CMD 1 CMD 2 Data 0

A A 0 0

2) Check the mothed 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

3.6. WIFI MAC ADDRESS CHECK

(1) Using RS232 Command

H-freq(kHz) V-freq.(Hz)

Transmission [A][I][][Set ID][][20][Cr] [O][K][X] or [NG]

(2) Check the menu on in-start

4. Manual Adjustment

* ADC adjustment is not needed because of OTP(Auto ADC

adjustment)

4.1. EDID DATA

4.1.1. 3D EDID

▪ 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 : ‘2013’ → ‘17’ ⓓ Model Name(Hex): LGTV

Chassis MODEL NAME(HEX)

LD33B 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 ⓔ2 ⓔ3

10bit

/none XvYcc

HDMI1 E8 85 CC X

HDMI2 E8 75 BC X

HDMI3 E8 65 AC X

ⓕ Vendor Specific(HDMI)

1) Deep color (module 10bit)

INPUT MODEL NAME(HEX)

HDMI1 78 03 0C 00 10 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10

HDMI2 78 03 0C 00 20 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10

HDMI3 78 03 0C 00 30 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10

8bit

/none XvYcc

2) None deep color (module 8bit)

INPUT MODEL NAME(HEX)

HDMI1 78 03 0C 00 10 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10

HDMI2 78 03 0C 00 20 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10

HDMI3 78 03 0C 00 30 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10

ⓖ Colorimetry Data Block(HDMI)

1) The Model not supporting XvYcc

INPUT MODEL NAME(HEX)

HDMI1 E3 05 00 00

HDMI2 E3 05 00 00

HDMI3 E3 05 00 00

Only for training and service purposes

- 15 -

4.1.2. 2D EDID

4.2.3. Equipment connection MAP

Pro be

RS -232 C

Sig nal Sou rce

* If TV internal pattern is used, not needed

Co lor Anal yze r

RS- 232 C

Co mp ute r

RS- 232 C

Pattern Gen era to r

▪ 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)

LD33B 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 15 X

HDMI2 43 05 X

HDMI3 43 F5 X

ⓕ 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

4.2. White Balance Adjustment

4.2.1. Overview

▪ 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) Adjustment condition : normal temperature

1) Surrounding Temperature : 25 °C ± 5 °C

2) Surrounding Humidity : 20 % ~ 80 %

4.2.2. Equipment

(1) Color Analyzer: CA-210 (LED Module : CH 14) (2) Adjustment Computer(During auto adj., RS-232C protocol

is needed) (3) Adjustment Remote control (4) Video Signal Generator MSPG-925F 720p/216-Gray

(Model: 217, Pattern: 78) → Only when internal pattern is not available

▪ Color Analyzer Matrix should be calibrated using CS-1000.

4.2.4. Adj. Command (Protocol)

START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS 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-adjustment.

RS-232C COMMAND

[CMD ID DATA]

wb 00 00 Begin White Balance adjustment

wb 00 10 Gain adjustment(internal white pattern)

wb 00 1f Gain adjustment completed

wb 00 20 Offset adjustment(internal white pattern)

wb 00 2f Offset adjustment completed

wb 00 ff

End White Balance adjustment (internal pattern disappears )

Ex) wb 00 00 -> Begin white balance auto-adj.

wb 00 10 -> Gain adj. ja 00 ff -> Adj. data jb 00 c0 ... ... wb 00 1f → Gain adj. completed *(wb 00 20(Start), wb 00 2f(end)) → Off-set adj. wb 00 ff → End white balance auto-adj.

▪ Adj. Map Applied Model : LD33B Chassis ALL MODELS

Command

(lower caseASCII) CMD1 CMD2 MIN MAX

Cool

Medium

Warm

Adj. item

R Gain j g 00 C0 G Gain j h 00 C0 B Gain j i 00 C0 R Cut G Cut B Cut R Gain j a 00 C0 G Gain j b 00 C0 B Gain j c 00 C0 R Cut G Cut B Cut R Gain j d 00 C0 G Gain j e 00 C0 B Gain j f 00 C0 R Cut

G Cut

Explantion

Data Range

(Hex.)

Default

(Decimal)

Only for training and service purposes

- 16 -

4.2.5. Adj. method

(1) Auto adj. method

1) Set TV in adj. mode using POWER ON key.

2) Zero calibrate probe then place it on the center of the Display.

3) Connect Cable.(RS-232C to USB)

4) Select mode in adj. Program and begin adj.

5) When adj. is complete (OK Sign), check adj. status pre mode. (Warm, Medium, Cool)

6) Remove probe and RS-232C cable to complete adj.

▪ W/B Adj. must begin as start command “wb 00 00” , and

finish as end command “wb 00 ff”, and Adj. offset if need.

(2) Manual adjustment. method

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 10 cm of the surface.

3) Press ADJ key → EZ adjust using adj. R/C → 7. WhiteBalance then press the cursor to the right(key ►).

(When right key(►) is pressed 204 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) Adjustment is performed in COOL, MEDIUM, WARM 3 modes of color temperature.

▪ If internal pattern is not available, use RF input. In EZ Adj.

menu 7.White Balance, you can select one of 2 Testpattern: ON, OFF. Default is inner(ON). By selecting OFF, you can adjust using RF signal in 204 Gray pattern.

▪ Standard color coordinate and temperature using CA-210(CH 14)

Mode

Coordinate

x y

Temp ∆uv

Cool 0.269 ± 0.002 0.273 ± 0.002 13000 K 0.0000

Medium 0.285 ± 0.002 0.293 ± 0.002 9300 K 0.0000

Warm 0.313 ± 0.002 0.329 ± 0.002 6500K 0.0000

4.2.7. ALELF & EDGE LED White balance table

- EDGE LED module change color coordinate because of aging time.

- Apply under the color coordinate table, for compensated aging time.

* Normal Line [LN5xxx, LA6xxx, LA7xxx, LA8xxx]

NC4.0

Aging

time

(Min)

1 0-2 283 287 298 306 322 342 2 3-5 282 285 297 304 321 340 3 6-9 281 284 296 303 320 339 4 10-19 279 281 294 300 318 336 5 20-35 277 277 292 296 316 332 6 36-49 275 274 290 293 314 329 7 50-79 273 272 288 291 312 327 8 80-119 272 271 287 290 311 326 9 Over 120 271 270 286 289 310 325

Cool Medium Warm

X y x y x y

271 270 286 289 313 329

▪ Adjustment 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 10 cm

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.

4.2.6. Reference (White balance Adj. coordinate and color temperature)

▪ Luminance : 204 Gray ▪ Standard color coordinate and temperature using CS-1000 (over 26 inch)

Mode

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

Coordinate

x y

Temp ∆uv

*Aging Chamber [LN5xxx, LA6xxx, LA7xxx, LA8xxx]

NC4.0

Aging

time

(Min)

1 0-5 282 285 297 304 321 340 2 6-10 278 280 293 299 317 335 3 11-20 275 275 290 294 314 330 4 21-30 272 272 287 291 311 327 5 31-40 269 269 284 288 308 324 6 41-50 268 267 283 286 307 322 7 51-80 267 266 282 285 306 321 8 81-119 266 264 281 283 305 319 9 Over 120 265 263 280 282 304 318

Cool Medium Warm

X y x y x y

271 270 286 289 313 329

Only for training and service purposes

- 17 -

4.3. 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.

4.4. Magic Motion Remote control test

- Re sults are automatically marked in In start OSD after

through the AP/Magic Remocon Equipment on the line

(2) When 3D OSD appear automatically, then select OK key.

(3) Don't wear a 3D Glasses, check the picture like below.

4.6. Wi-Fi Test

Step 1) Turn on TV Step 2) Select Network Connection option in Network Menu.

4.5. 3D function test

(Pattern Generator MSHG-600, MSPG-6100[Support HDMI1.4]) * HDMI mode NO. 872 , pattern No.83 (1) Please input 3D test pattern like below.

Step 3) Select Start Connection button in Network Connection.

Step 4) If the system finds any AP like blow PIC, it is working

well.

Only for training and service purposes

- 18 -

4.7. LNB voltage and 22KHz tone check

(only for DVB-S/S2 model) ▪ Test method

(1) Set TV in Adj. mode using POWER ON. (2) Connect cable between satellite ANT and test JIG. (3) Press Yellow key(ETC+SWAP) in Adj Remote control to

make LNB on. (4) Check LED light ‘ON’ at 18 V menu. (5) Check LED light ‘ON’ at 22 KHz tone menu. (6) Press Blue key(ETC+PIP INPUT) in Adj Remote control

to make LNB off. (7) Check LED light ‘OFF’ at 18 V menu. (8) Check LED light ‘OFF’ at 22 KHz tone menu.

▪ Test result

(1) After press LNB On key, ‘18 V LED’ and ‘22 KHz tone

LED’ should be ON.

(2) After press LNB OFF key, ‘18 V LED’ and ‘22 KHz tone

LED’ should be OFF.

7. GND and Internal Pressure check

7.1. 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.

4.8. Option selection per country

4.8.1. Overview

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

4.8.2. 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, MX. Selection is done using +, - or ►◄ key.

5. Tool Option selection

▪ Method : Press "ADJ" key on the Adjustment remote control,

then select Tool option.

6. Ship-out mode check(In-stop)

▪ After final inspection, press "IN-STOP" key of the Adjustment

remote control and check that the unit goes to Stand-by mode.

7.2. Checkpoint

▪ TEST voltage

- GND: 1.5 KV / min at 100 mA

- SIGNAL: 3 KV / min at 100 mA ▪ 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 0.5 mArms

8. Audio

Measurement condition: (1) RF input: Mono, 1 KHz sine wave signal, 100 % Modulation (2) CVBS, Component: 1 KHz sine wave signal 0.5 Vrms (3) RGB PC: 1 KHz sine wave signal 0.7 Vrms

No. Item Min Typ Max Unit Remark

Audio practical max Output, L/R

1. (Distortion=10%

max Output)

Speaker (8Ω

2. Impedance)

9 10 12 W

8.10 10.8 Vrms

9 10 12 W

EQ Off AVL Off Clear Voice Off

Only for training and service purposes

- 19 -

9. USB S/W Download(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, it didn’t work.

But your downloaded version is Higher, USB data is automatically detecting (Download Version High & Power only mode, Set is automatically Download)

(3) Show the message “Do not unplug!”

(4) Updating is starting.

(5) Updating Completed, The TV will restart automatically (6) If your TV is turned on, check your updated version and

Tool option. (explain the Tool option, next stage)

* 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, have to adjust Tool Option again.

(1) Push "IN-START" key in service remote control. (2) Select "Tool Option 1" and push "OK" key. (3) Punch in the number. (Each model has their number)

Only for training and service purposes

- 20 -

BLOCK DIAGRAM

SUB

ASSY

WIFI

LEVEL

SHIFTER

DDR3

A B

SYSTEM EEPROM

eMMC

50P

EPI

Audio AMP

50P

BLUTOOTH

LOCAL DIMMING

SPI

UART

KEY

USB_WIFI

LOGO LIGHT

Sub Micom

X_TAL

LGE2122

X_TAL

P_TS

CI Slot

Analog Demod

T/C Demod

P_TS

IF (+/-)

P_TS

USB

P_TS

OCP

HDMI

MUX

MHL

OCP

CVBS/YPbPr

CVBS/RGB

AMP

ETHERNET

SPDIF OUT

Air/

Cable

REAR(H)

Only for training and service purposes

(HDD)

USB1

USB2

USB3

SID

T/C/S2 Tuner

DVB-S

HDMI1

SID

LNB

(MHL)

HDMI2

HDMI3

H/P

AV/COMP

SCART

REA

- 21 -

LAN

OPTIC

400

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 essenti al that these special safet y parts shoul d be replac ed with the same compo nents as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

910

900

521

540

570

120

LV2

LV1

530

123

810

560

Option

122

200

510

A10

A22

* Set + Stand

* Stand Base + Body

Option

200T

300

Only for training and service purposes

- 22 -

500

301

2013 LED/LCD TV

LGE Internal Use Only

Engineering guide

< Applicable Model : Mid-end Platform >

XXLA74*-Z* XXLA71*-Z* XXLA69/66*-Z* XXLA64/62/61*-Z* XXLN57*-Z*

1/ 88

◈ CONTENT ◈

LGE Internal Use Only

1. New features

2. Main PCBs

3. Block Diagrams, IIC Map

4. Structure of TV set and connection of sub ass’ys

5. New sub ass’ys

- Instruction of new sub ass’ys

6. Adjust way of new features

7. Repair guide

2/ 88

EPI Interface

LGE Internal Use Only

EPI(Embedded Point-Point Interface)

Features

• Point-Point topology (support 2 Pair option)

• CDR (Clock Data Recovery)

• Bandwidth up to 1.85Gbps/pair

at FHD 120Hz 10 bit application

• Lock signal cascading and feedback to T-Con

• Embedded Control Data

Merits

VCC

TCON

LOCK

Figure1. Topology

• Better reliability on common noise

• No data skew and better EMI margin

• Fewer lines than mini-LVDS

• Slim PCB design

3/ 88

EPI Interface (mini-LVDS vs. EPI)

LGE Internal Use Only

Comparison

HF mini-LVDS

HF mini-

LVDS

No. of Signal 36 36 72

Connector

60Hz 120Hz 240Hz

60pin

(2ea)

-Difficult to upgrade bandwidth limit

-Multiple number of wires needed for higher bandwidth

EPI (Embedded clock P-to-P Interface)

EPI

No. of Signal 12 12 32

Connector -

-Better reliability on common noise

-No data skew. Better EMI margin

-Lower cost ( Cable, Connector )

-Slim S-PCB design (14mm Æ 10mm) helps slimmer TV

60Hz 120Hz 240Hz

960ch 960ch 720ch

FHD (10bit)

60pin

(2ea)

FHD (10bit)

50 pin

(2ea)

80pin

(2ea)

70pin

(2ea)

What to change

LCM (T-con to S-Driver IC)

HF mini-LVDS

VCC

EPI

VCC

* Bandwidth Capability

- FHD 120Hz 10Bit : 594Mbps@36Lines → 1.65Gbps@12Lines

- FHD 240Hz 10Bit : 594Mbps@72Lines → 1.25Gbps@32Lines

TCON

(FHD 120Hz)

TCON

LOCK

(FHD 120Hz)

4/ 88

EPI Interface (mini-LVDS vs. EPI)

LGE Internal Use Only

HF mini-LVDS EPI

Topology

Protocol

Features

@10bit, FHD120

Merit

TCON

• Multi Drop

• Data rate: 660Mbps

• External clock

• Simple structure

• Standardization

TCON

• Point to Point

• Data rate : 1.8Gbps

• Embedded clock, Control

• Fewer Lines : 12

• Embedded clock

: low EMI, Clock skew free

Lock

Demerit

• Too many lines : 36

• Clock skew

• EMI due to clock lines

• Bandwidth limit

• Easy to PCB design

• Transmission Overhead

: 4bit delimiter

5/ 88

NFC (Near field communication)

LGE Internal Use Only

Near field communication (NFC) is a set of standards for smartphones and similar devices to establish radio communication with each other by touching them together or bringing them into close proximity, usually no more than a few centimetres. Present and anticipated applications include contactless transactions, data exchange, and simplified setup of more complex communications such as Wi-Fi. Communication is also possible between an NFC device and an unpowered NFC chip, called a "tag".

From Smart phone

to TV

User Action Area

Samrt phone close to

NFC Tag

Player choose

From TV

to Smart phone

6/ 88

+ 66 hidden pages