LED TV SERVICE MANUAL - YoReparo

P/NO : MFL69879812 (1707-REV01)

CHASSIS : UD74P

MODEL : 55UJ634V 55UJ634V-ZD55UJ635V 55UJ635V-ZF

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

LED TVSERVICE MANUAL

CONFIDENTIAL

Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.

- 2 - Copyright © LG Electronics Inc. All rights reserved.Only training and service purposes.

CONTENTS

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

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

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

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

SOFTWARE UPDATE ............................................................................. 11

BLOCK DIAGRAM ..................................................................................12

EXPLODED VIEW .................................................................................. 25

DISASSEMBLY GUIDE .......................................................................... 26

TROUBLE SHOOTING GUIDE ................................................ APPENDIX


Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the 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 exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to 0.5 mA.In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.

Leakage Current Hot Check circuit

IMPORTANT SAFETY NOTICE

SAFETY PRECAUTIONS


SERVICING PRECAUTIONSCAUTION: 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 conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication, always follow the safety precau-tions. Remember: Safety First.

General Servicing Precautions1. 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 explo-sion 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 specified 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 flammable mixture.Unless specified 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 fixtures specified in this service manual.CAUTION: Do not connect the test fixture ground strap to any heat sink in this receiver.

Electrostatically Sensitive (ES) DevicesSome semiconductor (solid-state) devices can be damaged eas-ily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component dam-age 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. Alter-natively, obtain and wear a commercially available discharg-ing 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 expo-sure 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 sol-der removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient 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 elec-trically 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 mate-rial to the chassis or circuit assembly into which the device will be installed.CAUTION: Be sure no power is applied to the chassis or cir-cuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replace-ment ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity suf-ficient to damage an ES device.)

General Soldering Guidelines1. Use a grounded-tip, low-wattage soldering iron and appropri-

ate 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 wire-

bristle (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 techniquea. 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 flows onto and around both the compo-nent 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.


IC Remove/ReplacementSome chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent flat against the cir-cuit 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.

Removal1. 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.

Replacement1. 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 TransistorRemoval/Replacement1. 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 remain-

ing 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 DeviceRemoval/Replacement1. 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/Replacement1. Remove defective diode by clipping its leads as close as pos-

sible 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.

Fuse and Conventional ResistorRemoval/Replacement1. 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.

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 RepairExcessive 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 when-ever this condition is encountered.

At IC ConnectionsTo 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 connec-tions).

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 ConnectionsUse 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 con-nected 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.


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

1. Application rangeThis specification is applied to the LED TV with UD74P chassis.

2. Requirement for TestEach 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 specification- Wireless : Wireless HD Specification (Option)

4. Model General SpecificationNo. Item Specification Remarks

1 Market EU/CIS(PAL Market-37Countries)

DTV & Analog (Total 37 countries)

DTV (MPEG2/4, DVB-T) : 26 countrieGermany, Netherland, Switzerland, Hungary, Austria, Slovenia, Bulgaria, France, Spain, , Belgium, Luxemburg, Greece, Czech, Turkey, Morocco, Ireland, Latvia, Estonia, Lithuania, Poland, Portugal, Romania, Albania, Bosnia, Slovakia, Belarus

DTV (MPEG2/4, DVB-T2) :11 countriesUK(Ireland), Sweden, Denmark, Finland, Norway, Ukraine, Kazakhstan, Russia, Italy, Croatia, Serbia

DTV (MPEG2/4, DVB-C) : 37 countriesGermany, Netherland, Switzerland, Hungary, Austria, Slovenia, Bulgaria, France, Spain, Italy, Belgium, Russia, Luxemburg, Greece, Czech, Croa-tia, Turkey, Morocco, Ireland, Latvia, Estonia, Lithuania, Poland, Portugal, Romania, Albania, Bosnia, Serbia, Slovakia, Belarus, UK, Sweden, Den-mark, Finland, Norway, Ukraine, Kazakhstan

DTV (MPEG2/4,DVB-S) : 37 countriesGermany, Netherland, Switzerland, Hungary, Austria, Slovenia, Bulgaria, France, Spain,Belgium, Luxemburg, Greece, Czech, Turkey, Morocco, Ireland, Latvia, Estonia, Lithuania, Poland, Portugal, Romania, Albania, Bosnia, Slovakia, Belarus, UK(Ireland), Sweden, Denmark, Finland, Nor-way, Ukraine, Kazakhstan,Russia, Italy, Croatia, Serbia

Supported satellite : 35 satellitesABS1 75.0E , AMOS 4.0W , ASIASAT3S 105.5E , ASTRA 19.2E , ASTRA 23.5E , ASTRA 28.2E , ASTRA 4.8E, ATLANTIC BIRD2 8.0W , ATLANTIC BIRD3 5.0W , BADR 26.0E , DIRECTV-1R 56.0E , EUROBIRD 9A 9.0E , EUROBIRD3 33.0E , EUTELSAT 36 A/B 36.0E ,EUTELSAT W2A 10.0E , EUTELSAT W3A 7.0E , EUTELSAT7WA 7.3W


No. Item Specification Remarks

2 Broadcasting system1)PAL/SECAM B/G/I/D/K SECAM L/L’2)DVB-T/T2, C, S/S2

3 Program coverage

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

4 Receiving system Analog : Upper HeterodyneDigital : COFDM, QAM

► DVB-T- Guard Interval(Bitrate_Mbit/s)1/4, 1/8, 1/16, 1/32- Modulation : Code RateQPSK : 1/2, 2/3, 3/4, 5/6, 7/816-QAM : 1/2, 2/3, 3/4, 5/6, 7/864-QAM : 1/2, 2/3, 3/4, 5/6, 7/8

► DVB-T2- Guard Interval(Bitrate_Mbit/s)1/4, 1/8, 1/16, 1/32, 1/128, 19/128, 19/256,- Modulation : Code RateQPSK : 1/2, 2/5, 2/3, 3/4, 5/616-QAM : 1/2, 2/5, 2/3, 3/4, 5/664-QAM : 1/2, 2/5, 2/3, 3/4, 5/6256-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- SymbolrateDVB-S2 (8PSK / QPSK) : 2 ~ 45Msymbol/sDVB-S (QPSK) : 2 ~ 45Msymbol/s- 9 iterbiDVB-S mode : 1/2, 2/3, 3/4, 5/6, 7/8DVB-S2 mode : 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10

5 Input Voltage AC 100 ~ 240V ,50/60Hz


5. External Input Format5.1. 2D Mode5.1.1. Component input(Y, CB/PB, CR/PR)

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

1 720*480 15.73 59.94 13.50 SDTV ,DVD 480i

2 720*480 15.75 60.00 13.5135 SDTV ,DVD 480i

3 720*576 15.62 50.00 13.50 SDTV 576i

4 720*480 31.47 59.94 27.00 SDTV 480p

5 720*480 31.50 60.00 27.027 SDTV 480p

6 720*576 31.25 50.00 27.00 SDTV 576p

7 1280*720 44.96 59.94 74.175 HDTV 720p

8 1280*720 45.00 60.00 74.250 HDTV 720p

9 1280*720 37.50 50.00 74.250 HDTV 720p

10 1920*1080 28.12 50.00 74.250 HDTV 1080i

11 1920*1080 33.72 59.94 74.175 HDTV 1080i

12 1920*1080 33.75 60.00 74.250 HDTV 1080i

13 1920*1080 56.25 50.00 148.50 HDTV 1080p

14 1920*1080 67.43 59.94 148.350 HDTV 1080p

15 1920*1080 67.50 60.00 148.50 HDTV 1080p

5.1.2. HDMI Input (PC)No Resolution H-freq(kHz) V-freq(Hz) Pixel clock(MHz) Proposed Remarks

1 640*350 31.46 70.09 25.17 EGA

2 720*400 31.46 70.08 28.32 DOS

3 640*480 31.46 59.94 25.17 VESA(VGA)

4 800*600 37.87 60.31 40.00 VESA(SVGA)

5 1024*768 48.36 60.00 65.00 VESA(XGA)

6 1152*864 54.34 60.05 80.00 VESA

7 1360*768 47.71 60.01 85.00 VESA(WXGA)

8 1280*1024 63.98 60.02 109.00 VESA(SXGA) FHD, UHD only

9 1920*1080 67.50 60.00 158.40 WUXGA(CEA 861D) FHD, UHD only

10 3840*2160 54.00 24.00 297.00 UDTV 2160P UHD only

11 3840*2160 56.25 25.00 297.00 UDTV 2160P UHD only

12 3840*2160 67.50 30.00 297.00 UDTV 2160P UHD only

13 4096*2160 53.95 23.97 296.703 UDTV 2160P UHD only

14 4096*2160 54.00 24.00 297.00 UDTV 2160P UHD only


5.1.3. HDMI Input (DTV)No Resolution H-freq(kHz) V-freq(Hz) Pixel clock(MHz) Proposed Remarks

1 640*480 31.46 59.94 25.13 SDTV 480P

2 640*480 31.50 60.00 25.13 SDTV 480P

3 720*480 15.73 59.94 13.50 SDTV, DVD 480I(525I)

Spec. out but display4 720*480 15.75 60.00 13.51 SDTV, DVD 480I(525I)

5 720*576 15.62 50.00 13.50 SDTV, DVD 576I(625I) 50Hz

6 720*480 31.47 59.94 27.00 SDTV 480P

7 720*480 31.50 60.00 27.03 SDTV 480P

8 720*576 31.25 50.00 27.00 SDTV 576P

9 1280*720 44.96 59.94 74.18 HDTV 720P

10 1280*720 45.00 60.00 74.25 HDTV 720P

11 1280*720 37.50 50.00 74.25 HDTV 720P

12 1920*1080 28.12 50.00 74.25 HDTV 1080I

13 1920*1080 33.72 59.94 74.18 HDTV 1080I

14 1920*1080 33.75 60.00 74.25 HDTV 1080I

15 1920*1080 26.97 23.97 63.30 HDTV 1080P

16 1920*1080 27.00 24.00 63.36 HDTV 1080P

17 1920*1080 33.71 29.97 79.12 HDTV 1080P

18 1920*1080 33.75 30.00 79.20 HDTV 1080P

19 1920*1080 56.25 50.00 148.50 HDTV 1080P

20 1920*1080 67.43 59.94 148.35 HDTV 1080P

21 1920*1080 67.50 60.00 148.50 HDTV 1080P

22 3840*2160 53.95 23.98 297.00 UDTV 2160P UHD only

23 3840*2160 54.00 24.00 297.00 UDTV 2160P UHD only

24 3840*2160 56.25 25.00 297.00 UDTV 2160P UHD only

25 3840*2160 61.43 29.97 297.00 UDTV 2160P UHD only

26 3840*2160 67.50 30.00 297.00 UDTV 2160P UHD only

27 3840*2160 112.50 50.00 594.00 UDTV 2160P(DVB) UHD only

28 3840*2160 134.86 59.94 593.41 UDTV 2160P UHD only

29 3840*2160 135.00 60.00 594.00 UDTV 2160P UHD only

30 4096*2160 53.95 23.98 297.00 UDTV 2160P UHD only

31 4096*2160 54.00 24.00 297.00 UDTV 2160P UHD only

32 4096*2160 56.25 25.00 297.00 UDTV 2160P UHD only

33 4096*2160 61.43 29.97 297.00 UDTV 2160P UHD only

34 4096*2160 67.50 30.00 297.00 UDTV 2160P UHD only

35 4096*2160 112.50 50.00 594.00 UDTV 2160P(DVB) UHD only

36 4096*2160 134.86 59.94 593.41 UDTV 2160P UHD only

37 4096*2160 135.00 60.00 594.00 UDTV 2160P UHD only


5.2. 3D Mode - DTV/HDMI/USB5.2.1. RF Input

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

1 1280*720 37.50 50 74.25 HDTV 720P 2D to 3D, Side by Side, Top & Bottom

2 1920*1080 28.13 50 74.25 HDTV 1080I 2D to 3D, Side by Side, Top & Bottom


1. USB(1) Insert the USB memory Stick to the USB port.(2) Automatically detect the SW Version and show the below

message

(3) Click [YES]: initiate the download and install of the update.

(4) Click [Check Now]: move to “About This TV” page for update.

(5) TV is updating.

(6) After finished the update, below Pop-up appear.

(7) Click [Yes] : TV will be DC OFF -> ON(8) After TV turned on, Check the updated SW Version and

Tool Option.

2. NSU(1) Menu -> All Settings -> General -> About This TV

(2) Click [CHEK FOR UPDATES] : system check newest version

(3) Click [DOWNLOAD AND INSTALL](4) TV is updating

(5) After finished the update, below Pop-up appear

(6) Turn OFF the TV and On. Check the updated SW Version and Tool Option

SOFTWARE UPDATE


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2. K3Lp Block Diagram (Internal)


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0_DA

C_SC

LK]

[GPI

O_4_

VBY_

HTPD

/TCO

N_14

] [G

PO_1

_TCO

N_I2

C_EN

/TCO

N_2]

Boos

t/Buc

k (R

T504

3A)

VDD,

VCO

RE

SWG

SWO

SWI

[EPI

_TX1

2~EP

I_TX

23]

GAM

MA

(RT6

508)

BO

E On

ly GM

A (2

, 3, 4

, 7, 8

, 11

, 12,

15,

16,

17)

[GPI

O_2_

TCON

_SCL

/TCO

N_9]

[GPI

O_1_

TCON

_SDA

/TCO

N_5]

68pi

n60

pin

68pi

n 60

pin

3. EPI / CEDS Block Diagram


17Y

Tune

r

K3Lp

RT

K

[B1_

+3.3

V_RF

] 3

[+3.

3V_D

EMO

D_TU

] 11

[B3_

+1.2

V_DE

MO

D] 1

3

[IF_P

_TU]

8

[IF_N

_TU]

7

[TU_

SIF]

6

[TU_

CVBS

_TU]

4

[IF_A

GC_

TU] 5

[M_E

RRO

R] 1

4 [M

_MCL

K] 1

5 [M

_SYN

C] 1

6 [M

_VAL

ID] 1

7

AB5

/ AB2

[GPI

O57

_TP0

_CLK

] AB

6 / A

A3 [

GPI

O56

_TP0

_SYC

] AB

4 / A

C2 [G

PIO

58_T

P0_V

AL]

FE_D

EMO

D1_T

S_ER

ROR

FE_D

EMO

D1_T

S_CL

K FE

_DEM

OD1

_TS_

SYNC

FE

_DEM

OD1

_TS_

VAL

FE_D

EMO

D1_T

S_DA

TA[0

-7] 1

8-25

FE

_DEM

OD1

_TS_

DATA

[0-7

] [G

PIO

59~6

6_TP

0_D0

~TP0

_D7]

[B4_

+2.5

V_DE

MO

D] 2

9

+2.5

V_No

rmal

[/TU_

RESE

T1_T

U] 1

0 /T

U_RE

SET1

AB

2 / L

1 [V

INRP

_TUN

ER0_

REST

]

[LNB

_TX1

] 12

[LNB

] 26(

Full

NIM

) / [L

NB] 2

6(Ha

lf NI

M)

[SCL

_RF]

1

[SDA

_RF]

2

I2C_

SCL2

I2

C_SD

A2 +3

.3V_

NORM

AL

+3.3

V_NO

RMAL

IF_P

IF_N

TUNE

R_SI

F (O

PT :

TU_E

XT_A

TV)

TU_C

VBS

(OPT

: TU

_EXT

_ATV

)

IF_A

GC

AE1

/ U2

[IF_P

]

AE2

/ U3

[IF_N

]

AE3

/ V2

[SIF

]

Y5 /

R5

[VIN

10P]

Y4 /

W4

[GPI

O55

_RF_

IF_A

GC1

]

[SCL

_DEM

OD]

36

[SDA

_DEM

OD]

35

+ DE

MO

D_CO

RE

LNB

IC70

01

DT18

05

LNB_

TX

LNB_

OUT

1.8K

5 [S

CL]

6 [S

DA]

8 [T

ONE

CTRL

] 2

[LNB

]

33

[/TU_

RESE

T2_T

U] 3

4 /T

U_RE

SET2

AA

3 / M

2 [V

ING

P_DE

MO

D_RE

SET]

33

33

TU

_JP

AA5

/ Y4

[G

PIO

52_T

UNER

0_SC

L]

AA6

/ AA4

[GPI

O51

_TUN

ER0_

SDA]

[S_E

RRO

R] 2

8 [S

_MCL

K] 3

3 [S

_SYN

C]30

[S

_VAL

] 31

[S_D

ATA]

32

TU_J

APAN

AF4

[GPI

O54

_TUN

ER1_

SCL]

AF

5 [G

PIO

53_T

UNER

1_SD

A]

Rese

rved

for D

ual T

uner

_onl

y K3

L AF

4[G

PIO

54_T

UNER

1_SC

L]AF

5[G

PIO

53_T

UNER

1_SD

A]AARe

servrr

edfo

rDua

l Tun

er_o

nnlyl

K3L

AF3

/ W2

[IP_1

]

AG1

/ W3

[IN_1

]

AG2

/ Y2

[QP_

2]

AG3

/ Y3

[QN_

2]

IF_S

_IP

IF_S

_IN

IF_S

_QP

IF_S

_QN

[IF_S

_IP_

MAI

N] 5

9

[IF_S

_IN_

MAI

N] 6

0

[IF_S

_QP_

MAI

N] 6

2

[IF_S

_QN_

MAI

N] 6

1

JAPA

N_O

PT

FE_D

EMO

D1_T

S_1_

DATA

[1]

FE_D

EMO

D1_T

S_1_

DATA

[4]

FE_D

EMO

D1_T

S_1_

DATA

[3]

FE_D

EMO

D1_T

S_1_

DATA

[2]

FE_D

EMO

D2_T

S_ER

ROR

4. Tuner


HDMI

_ARC

ST_G

PIO_2

3_H0

_ARC

[AG1

3]

[V2]

SIF

I2C_S

DA/SC

L_AM

P

AUD_

SCK

AMP_

RESE

T_N

HP_L

/ROU

T H/

P Jac

k

SIDE_

HP_M

UTE

GPIO

021_

SCLK

[C2]

GPO_

0_I2S

_WCL

K/SP

DIF_

OUT_

1[D13

] GP

IO15

_D0 [

B3]

GPIO

_35_

HPOL

[N5]

GPIO

_36_

HPOR

[N4]

TU_S

IF

AI2R_

AMP_

SDA

[G4]

AI3L

_AMP

_SCL

[G5]

H/P A

MP

TPA6

138A

2 (IC

6300

) LP

F

AI2L

_AMP

_RES

ET_N

[F5]

SPDI

F_OU

T

AV1_

CVBS

_DET

CO

MP1/A

V1/D

VI_L_

IN

COMP

1/AV1

/DVI_

R_IN

[H5]

AIO1

L_AV

1_CV

BS_D

ET

[M5]

AI1L

[M

4] AI

1R

HP_L

OUT_

AMP

HP_R

OUT_

AMP

LPF

LPF

Realt

ek

K3Lp

Tuner

GPIO

_6_S

PDIF_

OUT_

0 [E3

]

AUD_

LRCH

AUD_

LRCK

AMP_

MUTE

SPK_

R+ / R

-

SPK_

L+ / L

-

MAIN

AMP

DTA2

010M

(IC

5800

)

MICO

M

SPK

L

SPK

R

22

26

[38] C

LK_I

[8] W

CK

[7] SD

ATA

[10,11

] [36

] [12

]

[30, 3

3]

[18, 2

1]

AV/C

OMP

HDMI

2

SPDI

F

HP_D

ET

AIO2

L_HP

_DET

[J5]

COMP

1_Pb

CO

MP1_

Pr

COMP

1_Y/C

VBS

COMP

1_DE

T

[N3]

VIN 3P

[P

3] VIN

5P

[P2]

VIN 4P

[H

4] AI3

R_CO

MP1_

DET

5. Video & Audio IN/OUT


REAL

TEK

K3Lp

HD

MI2

.0_1

_HPD

TMD

S1 -

D0/

D1/

D2/

CLK

ST_G

PIO

_19_

5V_D

ET_H

DM

I_0

ST_G

PIO

_18_

H0_

HPD

ST

_GPI

O_2

1_H

0_SC

L ST

_GPI

O_2

0_H

0_SD

A

P0_C

KN/P

_RG

B_N

/P

DD

C_S

CL1

/ D

DC

_SD

A1

MIC

OM

R

5F10

0GEA

FB

(IC30

00)

HD

MI2

.0_1

_5V_

DET

HD

MI2

.0_2

_HPD

TMD

S2 -

D0/

D1/

D2/

CLK

ST_G

PIO

_15_

5V_D

ET_H

DM

I_1

ST_G

PIO

_14_

H1_

HPD

ST_G

PIO

_17_

H1_

SCL

ST_G

PIO

_16_

H1_

SDA

ST_G

PIO

_23_

H0_

ARC

P1_C

KN/P

_RG

B_N

/P

DD

C_S

CL2

/ D

DC

_SD

A2

HD

MI2

.0_2

_5V_

DET

HD

MI2

.0_3

_HPD

TMD

S3 -

D0/

D1/

D2/

CLK

ST_G

PIO

_10_

5V_D

ET_H

DM

I_2

ST_G

PIO

_11_

H2_

HPD

ST

_GPI

O_1

3_H

2_SC

L ST

_GPI

O_1

2_H

2_SD

A

P2_C

KN/P

_RG

B_N

/P

DD

C_S

CL3

/ D

DC

_SD

A3

HD

MI2

.0_3

_5V_

DET

HD

MI2

.0_4

_HPD

TMD

S4 -

D0/

D1/

D2/

CLK

ST_G

PIO

_07_

5V_D

ET_H

DM

I_3

ST_G

PIO

_06_

H3_

HPD

ST

_GPI

O_0

9_H

3_SC

L ST

_GPI

O_0

8_H

3_SD

A

P3_C

KN/P

_RG

B_N

/P

DD

C_S

CL4

/ D

DC

_SD

A4

HD

MI2

.0_4

_5V_

DET

HDM

I2 w

ith A

RC

HDM

I1

HDM

I3

HDM

I4

HD

MI_

CEC

HD

MI_

ARC

HD

MI_

CEC

HD

MI_

CEC

6. HDMI 2.0 Block


RS23

2C

(IC72

00)

WIF

I_DM

/ DP

SOC_

RX /

TX

USB2

.0_2

_DM

/ DP

USB2

DEBU

G_R

X / T

X

Real

tek

K3Lp

HSDM

1[AM

24]

HSDP

1[AL

24]

HSDM

2[AM

25]

HSDP

2[AL

25]

HSDM

0 [G

1]

HSDP

0 [G

2]

USB1

USB2

.0_3

_DM

/ DP

MIC

OM

R5

F100

GEA

FB

(IC30

00)

[AH5

] ST_

GPI

O_0

2_VG

A_SD

A [A

G5]

ST_

GPI

O_0

1_VG

A_SC

L

ST_G

PIO

_25_

UART

0/1[

AH13

] ST

_GPI

O_2

4_UA

RT0/

1[AG

14]

Waf

er

(P20

0)

Waf

er

(P40

00)

DEBU

G U

ART

Waf

er

(P20

1)

5 7 9 10

19

20

23

24

SOC_

RX /

TX

DCDC

OCP

BD

2242

G

(IC45

01)

USB_

OCD

2 [A

J18]

US

B_CT

L2 [A

G20

] +5

V_US

B2.0

_2

+5V_

USB2

.0_3

WO

L/W

IFI_

POW

ER_O

N BT

_RES

ET

BT_W

AKEU

P_DE

VICE

BT

_WAK

EUP_

HOST

IR

LE

D_R

KEY2

KE

Y1

DCDC

OCP

BD

2242

G

(IC47

00)

U

SB_O

CD3

[AG

22]

USB_

CTL3

[AH1

9]

DOUT

1 RI

N1 PH

ONE

JAC

K

7. USB / WIFI / M-REMOTE / UART(Debug)


[GPI

O_2_

TCON

_SCL

/TC

ON_9

] I2

C_SD

A6

SW50

B3A(

LGD)

SW

5253

A(BO

E)

EPI P

MIC

I2C_

SCL6

1.8k

[ST_

GPIO

_26_

MIC

RO_S

DA]

[ST_

GPIO

_27_

MIC

RO_S

CL]

I2C_

SDA_

1 I2

C_SC

L_1

K3Lp

[GPI

O_1_

TCON

_SDA

/TC

ON_5

]

1.8k

+3.3

V_NO

R 1.8k

1.8k

+3.5

V_ST

R5F1

00GE

AFB#

30

MIC

OM

[AI3

L_AM

P_SC

L]

[AI2

R_AM

P_SD

A]

I2C_

SDA4

I2C_

SCL4

FT24

C256

A-ES

R-T

NVRA

M

DTA2

010M

AM

P

[GPI

O_51

_TUN

ER0_

SDA]

[G

PIO_

52_T

UNER

0_SC

L]

I2C_

SDA2

I2

C_SC

L2

DT18

05

LNB

TDJN

-G50

1D

TUNE

R

1.8 k

1.8 k

+3.3

V_NO

R 1.8k

1.8k

+3.3

V_NO

R

33

33

33

33

100

33

EPI /

CED

S on

ly

8. K3Lp I2C Map


[ST_

GPIO

_05_

IR_R

X]

[ST_

GPIO

_00_

WOL

_WAK

E_UP

] W

OL/

ETH_

POW

ER_O

N

USB_

CTL2

K3Lp

M

ICOM

USB2

_2.0

OCP

US

B2

[RTC

_XO_

USBO

CD0]

[G

PIO_

79_U

SB_P

WR0

_SD_

WP]

INST

ANT_

BOO

T

/USB

_OCD

2

USB_

CTL3

US

B3_2

.0 O

CP

USB3

[R

TC_X

I_US

BOCD

1]

[GPI

O_78

_USB

_PW

R1_S

D_CD

] /U

SB_O

CD3

[RST

] SO

C_RE

SET

[AH1

6,AH

17,A

G16,

AG17

,AJ1

6]

BIT0

~4

HW o

ptio

n

ADC

1~5

[GPI

O_11

9_PC

_RST

] PC

M_R

ESET

CI_S

LOT

CI p

ower

en

able

con

trol

[AIO

2R_C

MD_

VCC_

SC]

PCM

_5V_

CTL

Pane

l

[GPI

O_4_

VBY_

HTPD

/TCO

N_14

] EP

I_M

CLK

[GPI

O_5_

VBY_

LOCK

/EPL

OCK]

LO

CKAn

[GPI

O7_P

MIC

_RES

ET]

PMIC

_RES

ET

PMIC

[GPO

011_

PWM

_DIM

_1]

[GPI

O010

_PW

M_D

IM_0

] PW

M_D

IM2

POW

ER

PWM

_DIM

[GPO

012_

LD_S

PI1_

SCK]

L/

DIM

_M0_

SCLK

[G

PO01

3_LD

_SPI

1_SD

O]

L/DI

M_M

0_M

OSI

[GPO

014_

LD_S

PI1_

SYNC

] L/

DIM

_M0_

VS

EPI_

GCLK

[G

PO_1

_TCO

N_I2

C_EN

/TCO

N_2]

[VIN

BN_V

IDCO

RE]

VID_

CORE

CO

RE D

CDC

[VIN

RP_T

UNER

0_RE

ST]

/TU_

RESE

T1

Tune

r /T

U_RE

SET2

[V

INGP

_DEM

OD_R

ESET

]

[AI2

L_AM

P_RE

SET_

N]

AMP_

RESE

T_N

Audi

o AM

P

[AI3

R_CO

MP1

_DET

] CO

MP1

_DET

Co

mpo

nent

/AV

Jack

[A

IO1L

_AV1

_CVB

S_DE

T]

AV1_

CVBS

_DET

[VDB

SOUT

_SC_

PWR_

SEL]

SM

ARTC

ARD_

PWR_

SEL

Japa

n B-

CAS

[AIO

2L_H

P_DE

T]

HP_D

ET

H/P

Jack

9. GPIO(K3Lp)


RTK

K3L

IC

100

1 [P

60/S

CLA0

] / 2

[P61

/SDA

A0]

13 [P

50//I

NTP1

/SI1

1/SD

A11]

18

[P14

/RXD

2/SI

20/S

DA20

]

RS23

2C

CONT

ROL

I/F

IC72

00

SOC_

RX/T

X

[P24

/ANI

4] 2

8 [P

23/A

NI3]

29

MIC

OM

DEB

UG 4

P P3

000

1250

7WS-

04L

[P40

/TO

OL0

] 39

MIC

OM

_DEB

UG

AMP

IC58

00

DTA2

010M

AMP_

MUT

E

MO

DEL1

_OPT

_0/1

/2/ 3

4 [P

63]

5 [P

31/T

I/03/

TO03

/INTP

4]

GND

+1

3V T

O P

ANEL

_VCC

PA

NEL_

CTL

HDM

I 1 /

2 / 3

/4

JK31

01/J

K310

2/JK

3103

/JK3

104

HDM

I_CE

C

RESE

T IC

IC

1300

14

[P51

/INTP

2/SO

11]

POW

ER_D

ET

POW

ER W

AFER

P1

001

INV_

CTL

MO

DE_S

ELEC

T_PW

M1

RL_O

N

I2C_

SCL_

MIC

OM

/ I2C

_SDA

_MIC

OM

WO

L/ET

H_PO

WER

_ON

SOC_

RESE

T

INST

ANT_

BOO

T

SYST

EM_D

EBUG

HP A

MP

IC63

00

TPA6

138A

2

[P25

/ANI

5] 2

7

SIDE

_HP_

MUT

E

OPT

0 NO

N LO

GO

LCD

/LO

GO

LCD

N

ON

LOG

O O

LED/

LOG

O O

LED

OPT

1 TV

-NO

N EP

I/BO

X/TV

EPI

/BO

X O

TP2

RESE

RVED

/ RES

ERVE

D/9_

KEY/

9_KE

Y_NO

N O

PT3

M16

/RTK

/H15

[RES

ET] 4

0 M

ICO

M_R

ESET

MIC

OM

X-T

AL

X300

0 32

.768

KHz

[P12

4/XT

2/EX

CLKS

] 41

[P12

3/XT

1] 4

2

17 [P

15/P

CLBU

Z1/S

CK20

/SCL

20]

WO

L_CT

L

51P

VX1

Waf

er

1.0V

DCD

C Et

h ST

DBY

IC23

07

TLV6

2565

DBVR

EWBS

_TUN

ER

[P16

/TI0

1/TO

01/IN

TP5]

16

AM_M

ODE

_DET

_OLE

D [P

137/

INTP

0] 4

3

HDM

I EXT

EDI

D IC

3401

BR

24G

02FJ

22 [P

10/S

CK00

/SCL

00]

7 [P

74/K

R4/IN

TP8/

SI01

/SDA

01]

19 [P

13/T

XD2/

SDA2

0]

36 [P

140/

PCLB

UZ0/

INTP

6]

IR /

KEY/

WIF

I/BT

P400

0

10 [P

71/K

R1/S

I21/

SDA2

1] /

11 [P

70/K

R0/S

IK21

/SCL

21]

31 [P

21/A

NI1/

AVRE

FM] /

32

[P20

/ANI

0/AV

REFP

]

38

[P41

/TI0

7/TO

07]

6 [P

75/K

R5/IN

TP9/

SCK0

1/SC

L01]

20

[P12

/SO

00/T

XD0/

TOO

LTXD

] 2

1 [P

11/S

I00/

RXD0

/TO

OLR

XD/S

DA00

]

EWBS

_TU

TUxx

xx

EDID

_WP

3D&L

_DIM

_EN

[P14

6] 2

3

[P62

] 3

1.5V

DCD

C IC

2303

SY

VL83

33

[P13

0]

3.3V

NO

RMAL

DCD

C IC

2300

TP

S563

208

[P72

/KR2

/SO

21] 9

PO

WER

_ON/

OFF

2_3

0.95

V CO

RE/C

PU D

CDC

IC23

02

TPS5

1362

RVER

1.8V

eM

MC

LDO

IC

2301

TJ

4320

GDP

-ADJ

POW

ER_O

N/O

FF2_

4 [P

01/T

O00

/RXD

1] 3

4

12 [P

30/IN

TP3/

RTC1

HZ/S

CK11

/SCL

11]]

[P17

/TI0

2/TO

02] 1

5 PO

WER

_ON/

OFF

1 13

V-5V

NO

RMAL

DCD

C IC

2500

TP

S564

208

24 [P

147/

ANI1

8]

25 [P

27/A

NI7]

26 [P

26/A

NI6]

WIF

I_EN

[P22

/ANI

2] 3

0

35 [P

00/T

I00/

TXD1

]

[P12

2/X2

/EXC

LK] 4

4 T_

CON_

SYS_

POW

ER_O

FF_O

LED

[P12

1/X1

] 45

IR

EYE_

SCL

/ EY

E_SD

A

BT_W

AKEU

P_DE

VICE

WO

L/W

IFI_

POW

ER_O

N

COM

BO_R

ESET

BT_W

AKEU

P_HO

ST

KEY1

/ KE

Y2

LED_

R

1.2V

Dem

od L

DO

IC69

00

TJ43

20G

DP-A

DJ

GND

+3.5

V W

IFI

37 [P

120/

ANI1

9]

RETE

NTIO

N_DI

SABL

E

8 [P

73/K

R3/S

O01

]

* Dep

endi

ng o

n M

odel

10. GPIO(MICOM – RENESAS)


K3Lp

K3L_

DDR_

0_AD

DR_[0

:14]

DC1_

A [0:

14]

K3L_

DDR_

0_CO

N_BA

[0:2

] DC

1_BA

[0:2]

K3L_

DDR_

0_CL

K_ P

/N

K3L_

DDR_

0_CO

N_CK

E

K3L_

DDR_

0_CO

N_OD

T DC

1_OD

T K3

L_DD

R_0_

CON_

RASN

/CAS

N DC

1_RA

S / C

AS K3

L_DD

R_0_

CON_

WEN

DC

1_W

E K3L_

DDR_

0_DQ

S_0_

P/N

K3L_

DDR_

0_DQ

S_1_

P/N

DC1_

DQS0

/ DQS

0B

DC1_

DQS1

/ DQS

1B

DC1_

DQS2

/ DQS

2B

DC1_

DQS3

/ DQS

3B

K3L_

DDR_

0_DQ

[0:15

] K3

L_DD

R_0_

DQ [1

6:31]

DC1_

DQ [0

:15]

DC1_

CLK

/ CLK

B

DC1_

CKE

A[0:1

4]

BA[0:

2]

ODT

RAS/

CAS

WEN

LDQS

/~LDQ

S

DDR3

IC40

0

CK / ~

CK

CKE

UDQS

/~UDQ

S

DC1_

DQ [1

6:31]

DQ[0:

15]

A[0:1

4]

BA[0:

2]

ODT

RAS/

CAS

WEN

DDR3

IC40

1

LDQS

/~LDQ

S

CK / ~

CK

CKE

UDQS

/~UDQ

S

DQ[0:

15]

K3L_

DDR_

0_DQ

S_2_

P/N

K3L_

DDR_

0_DQ

S_3_

P/N

1k oh

m

DC1_

CSB

K3L_

DDR_

0_CO

N_CS

0 ~C

S ~C

S DC

1_CS

B_1

K3L_

DDR_

0_CO

N_CS

1

11. DDR Block


LDO

DC

DC

D1

3.2V

3.5V

ST

4A

IC23

05

MIC

OM

IR

RS-2

32

WiF

i Mod

ule

FET

FET(

Q41

01)

SoC(

STB3

V3_1

) L3

11

FET(

Q20

3)

SoC(

STB3

V3_2

)

1V W

OL

1A

IC23

07

SoC(

Ethe

rnet

)

FET(

Q20

2)

L300

So

C(US

B1V0

)

L302

So

C(LV

1V0)

L305

So

C(HD

RX1V

0)

1.5V

DDR

3.

5A

IC23

03

DDR3

(IC40

1)

DDR3

(IC40

2)

FET(

Q20

1)

SoC(

LV1V

5_1~

2)

L303

SoC(

CPU1

V0)

D1V0

10

A IC

2302

So

C(C0

1V0)

FET(

Q11

01)

SubP

MIC

(IC93

00)

Pane

l_VC

C L1

100

SoC(

DDR)

L400

DDR

VTT

0.75

V, 1

.5A

IC41

0

Tune

r(+3.

5V_S

T)

L650

4

PMIC

(IC92

00)

12. K3Lp Power Block


D1

3.2V

3.3V

NO

RM

3A

IC23

00

CI D

etec

t

HP A

mp

NVRA

M

SPDI

F O

UT

Pull

up

SoC(

HDRX

3V3)

FET(

Q30

2)

SoC(

D3V3

,A3V

3)

L306

1.8V

2A

IC

2301

L2

305

SoC(

EMM

C1V8

)

EMM

C VC

CQ

EMM

C VC

C L2

304

Dem

od

Core

2A

IC

6900

2.5V

2A

IC

6800

Tune

r Dem

od

Tune

r 2.5

V

Audi

o Am

p L5

801

BCAS

L6

401

Tune

r (+3

.3V_

TU)

L650

5

Tune

r (LN

B)

L700

1

Tune

r (+3

.3V_

TU)

L650

3

5V N

ORM

4A

IC

2500

USB1

OCP

USB2

OCP

EDID

EEP

ROM

CI O

CP &

CI

IF

L640

0 BC

AS(J

apan

)

A13.

2V

Audi

o Am

p

*Jap

an O

nly

13. K3Lp Power Block2


200A

LV1

LV2

700

A10

700

AR1

ARC1

A9AR

2

200

820

530

800 540

521

400

120

121

500

570

571

810

910

900

EXPLODED VIEW

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the 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.

IMPORTANT SAFETY NOTICE


DISASSEMBLY GUIDE1. Unlock screws (“1”: 1EA, ”2”: 7EA, “3”: 7EA) to separate back cover

assembly from module. Detach the Side AV Label(“4”).

2

2 2 2

3

1 3

2

2

2

3 3 3 3 3

4

2. Disassemble Back Cover

- When it is Latch decomposition as shown in the figure below, and then decomposed by grasping the portions.

- caution : Hook can be separated on the top position, don’t pull it hard for upward

Grip for disassembling B/C

Back Cover Bottom

In case it disassemble hard, you can use tool like a driver. Insert driver into rectangle hole for disassembling B/C

Or


4. Separate connectors (“6”) from Main/Power PCB and module. Separate Speaker(“7”: 2EA) from module.

B B

A

6

B B

A

6 6

6

6 6

6 6

7 7

3. Detach the Tape(“5” )

5


6. Detach the Insulation Sheet.(“10” ).

10

5. Unlock screw (“8”: 18EA) to separate from module.* 1 pole Stand Supporter (“9”: 2EA) is applied on 1pole Stand type.

8 8

8 8 8

8

8

8

8

8 8

8 8 8 8

8 8

8

9 9


8. Separate connectors (“16”) from wifi PCB(“18”). Separate wifi PCB(“18”) from Wifi Bracket of Latch(“17”).

16 17

18

7. Separate connectors (“13”) from IR PCB(“12”). Lift the latch (“14”) to the upside and push the button(15) for separation .

12

11

13

14 14

15


10. Separate Stand body top(“27”) from Stand Base(“28”).27

28

9. Detach the foot rubber(“22”: 7EA) from 1pole Stand Assy (“21”).Unlock screw (“22”: 12EA) from 1pole Stand Assy (“21”). Separate Stand Pipe(“25”) and Metal Stand Neck(“26”) from 1pole Stand Assy (“21”).

21

22

22 22 22

24 22 22 22

22

22 22

22

24 24 24

24

24

24

25

26 22

TROUBLE SHOOTING GUIDE

Copyright © 2017 LG Electronics. Inc. All rights reserved.Only for training and service purposes.

Contents of Standard Repair Process No. Error symptom (High category) Error symptom (Mid category) Page Remarks

1

A. Video error

No video/Normal audio 1

2 No video/No audio 2

3 Picture broken/ Freezing 3

4 Color error 4

5 Vertical/Horizontal bar, residual image, light spot, external device color error

5

6

B. Power error

No power 6

7 Off when on, off while viewing, power auto on/off

7-8

8 C. Audio error

No audio/Normal video 9

9 Wrecked audio/discontinuation/noise 10

10

D. Function error

Remote control & Local switch checking 11

MR15 operating checking 12 11

12 Wifi operating checking 13

13 Camera operating checking 14

14 External device recognition error 15

15 E. Noise Circuit noise, mechanical noise 16

16 F. Exterior error Exterior defect 17

First of all, Check whether there is SVC Bulletin in GSCS System for these model. Copyright © 2017 LG Electronics. Inc. All rights reserved. Only for training and service purposes.

Normal audio

Y

N

Move to No video/No audio

No video Normal audio

Check Back Light On with naked eye On

Y

N

Check Power Board 13V

Normal voltage

Y

N

Replace T-con/Main Board or module

Repair Power Board or parts

Check Power Board 13V output

Normal voltage

Y Replace Inverter or module

N

Repair Power Board or parts

End

Always check & record S/W Version and White Balance value before replacing the Main Board Replace Main Board Re-enter White Balance value

※Precaution

Established

date

Standard Repair Process

Revised date 1/17

Error

symptom

A. Video error

No video/ Normal audio

☞A18 ☞A1

☞A18

☞A4 & A2

First of all, Check whether all of cables between board is inserted properly or not. (Main B/D↔ Power B/D, LVDS Cable, Speaker Cable, IR B/D Cable,,,)

1 Copyright © 2017 LG Electronics. Inc. All rights reserved.Only for training and service purposes.

Normal

voltage?

Check voltage of Power Board ( 13V…)

No Video/ No audio

Check and replace MAIN B/D

Y

Replace Power Board and repair parts

N End


A. Video error

No video/ No audio

☞A18

Established

date

Revised date 2/17

Error

symptom


A. Video error

Picture broken/ Freezing

Y

N

☞ A3

N

Check RF Signal level

Normal

Signal?

Check RF Cable

Connection

1. Reconnection

2. Install Booster

Check

S/W Version

S/W Upgrade

Check whether other equipments have problem or not.

(By connecting RF Cable at other equipment)

→ DVD Player ,Set-Top-Box, Different maker TV etc`

SVC

Bulletin?

Replace

Main B/D

Check

Tuner soldering

Normal

Picture?

Y

N

Y

Close

Y Close

. By using Digital signal level meter

. By using Diagnostics menu on OSD ( Advanced→ Channels→ Channel Tuning→ Manual Tuning → Check the Signal ) - Signal strength (Normal : over 50%) - Signal Quality (Normal: over 50%)

Normal

Picture?

Y

Contact with signal distributor

or broadcaster (Cable or Air)

N

Normal

Picture?

Y

Close

N

☞ A4


Established

date

Revised date 3/17

Error

symptom

3

N


Color

error?

Y

N

※ Check

and replace

Link Cable

(V by one)

and contact

condition

Y

N

Replace Main B/D Color

error?

Check error color input mode

Check color by input -External Input -COMPONENT -AV -HDMI

YExternal device

/Cable

normal

External Input/

Component error

Check external device and cable

Y External device

/Cable

normal

HDMI

error

Check external device and cable

Replace Main/T-con B/D


N

N

A. Video error

Color error

☞A6

N

Y

End

Replace module

Request repair

for external

device/cable

Color

error?

Check Test pattern

☞A8

☞ A7


Established

date

Revised date 4/17

Error

symptom


Screen normal?

N

Y Check external device connection condition

Y

N

Check and replace Link Cable

Normal?

Y

NScreen

normal? Replace Main/T-con B/D

Replace module

Check color condition by input -External Input -Component -HDMI

End

Vertical/Horizontal bar, residual image, light spot

Request repair for external device

A. Video error

Vertical / Horizontal bar, residual image, light spot, external device color error

☞A8

External device screen error-Color error

External

Input

error

Connect other external device and cable (Check normal operation of External Input, Component, RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc.

N

Y


Screen

normal?

Check screen condition by input -External Input -Component -HDMI/DVI

Request repair for external device

Component

error

HDMI/

DVI

Connect other external device and cable (Check normal operation of External Input, Component, RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc.

Replace Main /T-con B/D

Screen

normal?

N

Y

Check S/W Version

Y

N Check

version

S/W Upgrade

Y

N Normal

screen?

End

Y

N

Replace Main B/D

For LGD panel

Replace Module

Screen

normal?

End

Established

date

Revised date 5/17

Error

symptom


☞A6 ☞ A7

Check Test pattern

5

For other panel


B. Power error

No power

Power LED

On?

Y

N

DC Power on by pressing Power Key On Remote control

Y

NNormal

operation? Check Power

On ‘”High”

Check Power cord was inserted properly

Check

Logo LED

Replace Power B/D

Measure voltage of each output of Power B/D

N

Y Normal

voltage? Replace Main B/D

Y OK?

Replace Main B/D

N

Y

Normal?

Check ST-BY 3.5V

Replace Power B/D N

Y Normal

voltage?

Replace Power B/D

Y

☞A17

☞A18

☞A18

☞A18


Established

date

Revised date 6/17

Error

symptom

6

. Stand-By: Red or Turn On

. Operating: Turn Off

Close


B. Power error

Off when on, off while viewing, power auto on/off

Error? N

Y

Check Power Off

Mode

Fix A/C cord & Outlet and check each 3 phase out

Check A/C cord

Check for all 3- phase power out

Check outlet

Replace Main B/D CPU

Abnormal

(If Power Off mode

is not displayed)

Check Power B/D

voltage

Y

N

Replace Main B/D Normal

voltage?

Replace Power B/D

Replace Power B/D

N

Y Normal? End

※ Caution Check and fix exterior of Power B/D Part

☞A19

☞A18

Established

date

Revised date 7/17

Error

symptom


7

Abnormal

1


B. Power error

Off when on, off while viewing, power auto on/off

Established

date

Revised date 8/17

Error

symptom


8

* Please refer to the all cases which can be displayed on power off mode.

Power Off list Explanation Action contents

KEYTIMEOUT Power off when TV is not turned off during a certain time RESULT : micom force to trigger TV power off. CONDITION : When pressing power key while power on/off status, CPU does not response within 8 seconds

Check & Change Main B/D

1SEC Power OFF

Almost the same as Power Off by KEYTIMEOUT. If there is no vaild communication Bet ween CPU and MICOM for more than 5 seconds, the MICOM switcheds off PSU and Records. Power off by 1SEC Power off. In this case, we don’t have information where the malfunction exactly occurred. But in in indicates that CPU had stopped and rebooted.


ACDET In case of AC Off (It is normal when the power cord is unplugged.) Normal If there are many ACDETs connected, Power Board is defective Check & Change Power B/D

5V MNT

Power off by unstable AC power detect. RESULT : micom check the stable power. CONDITION : When AC on or DC on, stabilization check routine (Power Detect High Check) fail after multi power on.

Check & Change Power B/D

CPUABNORMAL If the CPU attempts to reset in case of abnormal operation and Shut Down in case of failure. Check & Change Main B/D

NO POLING Power off when receiving no ack. RESULT : TV power off/on (Reboot) CONDITION : There is no I2C response from CPU for 15 seconds.


CPUCMD Power off by main SoC command. Check & Change Main B/D

INV_ERROR Power off by module error (OLED) CONDITION : OLED Module send signal to micom

Check & Change OLED Module

ONRF_FAIL RESULT : Reboot, CONDITION : OLED module compensation is running but fails. Check & Change OLED Module

PNWASHFAIL Power off by panel noise wash function fail case. Check & Change OLED Module

RESET When Micom is reset by AC Off

Normal Case

KEY Power off by Local key OFFTIMER Power off by Off timer

SLEEPTIMER Power off by sleep timer NOSIG Power off by No Signal

FANSTOP Power off by FAN operation stopped INSTOP Power off by Instop Key

AUTO OFF Power off by auto off function RESREC Power off by reserved recording RECEND Power off when recording stops

SWDOWN Reboot by SW down load function UNKNOWN No meaning (same as initial value) COMP_END OLED threshold voltage degradation(Compensation) completes.

PNWASHDONE Power off by panel noise wash function complited. (OLED)


No audio Screen normal

Check user

menu >

Speaker off Off

N

Y

Cancel OFF

Check audio B+

13V of Power

Board

Normal

voltage

Y

N

Replace Power Board and repair parts

Check Speaker disconnection

N

Y

Replace Speaker

Replace MAIN Board End

C. Audio error

No audio/ Normal video

☞A20 ☞A21+A18

Disconnection

Established

date

Revised date 9/17

Error

symptom



→ abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio

C. Audio error

Wrecked audio/ discontinuation/noise

Wrecked audio/ Discontinuation/

Noise for all audio

Check and replace speaker and connector


Noise only for D-TV


Noise only for Analog


Noise only for External Input

Connect and check other external device

N

Y

Normal audio?

Check and fix external device

Replace Power B/D

N

Y Normal voltage?

Check input signal -RF -External Input signal

Signal normal?

(When RF signal is not received) Request repair to external cable/ANT provider

Y

Check audio B+ Voltage (13V)

Replace Main B/D

(In case of External Input signal error) Check and fix external device

Replace Main B/D N

End

Established

date

Revised date 10/17

Error

symptom


10

☞A21+A18


D. Function error

Remote control & Local switch checking

Y

N

1. Remote control(R/C) operating error

Check R/C itself

Operation Normal

operating?

Normal operating?

Y

Close

Replace R/C

If R/C operate,

Explain the customer

cause is interference

from light in room.

Check R/C Operating

When turn off light

in room

Check & Replace

Baterry of R/C

Check & Repair

Cable connection

Connector solder

Normal operating?

Check B+

3.5V

On Main B/D

☞A22

Normal Voltage?

Close

N

N

Check 3.5v on Power B/D

Replace Power B/D or

Replace Main B/D

(Power B/D don’t have problem)

☞A18

Check IR

Output signal

Normal Signal?

N

Y

Repair/Replace

IR B/D

N

☞A22

Replace

Main B/D

Y

☞A22


Established

date

Revised date 11/17

Error

symptom

11

Y


D. Function error

MR15 operating checking

Y

N

2. MR15 (Magic Remocon) operating error

Check MR15

itself Operation Normal

operating?

Normal operating?

Y

Close

Check & Replace

Battery of MR15

Is show ok message?

Press the

wheel

Is show ok message?

Close

N

N

N

Y


Established

date

Revised date 12/17

Error

symptom

Replace

MR15

Turn off/on the

set and press

the wheel

Press the back

key about 5sec

Close

• If you conduct the loop at 3times,

change the MR15

Y

Check the

INSTART menu RF Receiver ver

is “00.00”?

Y

Check & Repair

RF assy

connection

N

Down load the Firmware

* INSTART MENU14.RF

Remocon Test3. Firmware

download

Y

RF Receiver ver is “00.00”?

N Close

☞A23

☞A4

☞A4


D. Function error

Wifi operating checking

3.Wifi operating error

Check the

INSTART menu Wi-Fi Mac value

is “NG”?

Y

Check & Repair

Wifi cable

connection

N Check the Wifi wafer

1pin


Established

date

Revised date 13/17

Error

symptom

13

Change the Wifi

assy

Normal Voltage?

Close

Y

Y

N Replace

Main B/D

Wi-Fi Mac value is “NG”?

N Close

☞A24 ☞A4

☞A4

☞A24


D. Function error

Camera operating checking

4.Camera operating error

Check the

INSTART menu Camera Ver. is “NULL”?

Y

N Reconnect the

Camera module


Established

date

Revised date 14/17

Error

symptom

14

Change the

Camera module

Normal operation?

Close

Y

N Replace

Main B/D

☞A25 ☞A4


Check technical information - Fix information - S/W Version

N

Y

Technical information?

Check input signal

Signal input?

Y

N

External Input and Component

Recognition error

Check and fix external device/cable

HDMI/ DVI, Optical

Recognition error

Replace Main B/D

Replace Main B/D Fix in accordance

with technical information

D. Function error

External device recognition error

Established

date

Revised date 15/17

Error

symptom



Check location of noise

Identify nose type

Circuit

noise Replace PSU

Mechanical

noise

Check location of noise

※ When the nose is severe, replace the module (For models with fix information, upgrade the S/W or provide the description)

※ If there is a “Tak Tak” noise from the

cabinet, refer to the KMS fix information and then proceed as shown in the solution manual (For models without any fix information, provide the description)

OR

※ Mechanical noise is a natural phenomenon, and apply the 1st level description. When the customer does not agree, apply the process by stage. ※ Describe the basis of the description in “Part related to nose” in the Owner’s

Manual.

E. Noise

Circuit noise, mechanical noise

Established

date

Revised date 16/17

Error

symptom



Replace module Zoom part with exterior damage

Module

damage

Cabinet

damage Replace cabinet

Replace remote control Remote

control

damage

Stand

dent Replace stand

F. Exterior defect

Exterior defect

Established

date

Revised date 17/17

Error

symptom



Contents of Standard Repair Process Detail Technical Manual

No. Error symptom Content Page Remarks

1 A. Video error_ No video/Normal audio

Check LCD back light with naked eye A1

2 Check White Balance value A2

3

A. Video error_ video error /Video lag/stop

TUNER input signal strength checking method

A3

4 Version checking method A4

5 Tuner Checking Part A5

6 A. Video error _Vertical/Horizontal bar, residual image, light spot

Connection diagram A6

7 A. Video error_ Color error Check Link Cable (EPI) reconnection condition

A7

8

<Appendix>

Defected Type caused by T-Con/ Inverter/ Module

Check Cable(1) ~ (2) A-1/11

A-2/11

9 Exchange Main Board (1) ~ (3) A-3/11 ~

A-5/11

10 Exchange Module (1) ~ (3) A-6/11 ~

A-8/11

11 Exchange T-Con (1) ~ (2) A-9/11 ~

A-10/11

12 Exchange Power Board (PSU) A-11/11

Continue to the next page


Contents of Standard Repair Process Detail Technical Manual

No. Error symptom Content Page Remarks

13 B. Power error_ No power

Check front display LED A17

14 Check power input Voltage & ST-BY 3.5V A18

15 B. Power error_Off when on, off while viewing

POWER OFF MODE checking method A19

16 C. Audio error_ No audio/Normal video

Checking method in menu when there is no audio

A20

17 Voltage and speaker checking method when there is no audio

A21

18 D. Function error Remote control operation checking method A22

19

E. Etc

How to use the Service remote control A23-A25

20 Check items after Main B/D replacement A26

21 Adjustment Test pattern - ADJ Key A27

22 How to use JIG (Power B/D Diganostic Smart Jig Multi Gender)

A28

Continued from previous page


Established date

Standard Repair Process Detail Technical Manual

Revised date

A1

Error

symptom

Content Check LCD back light with naked eye

A. Video error_No video/Normal audio

After turning on the power and disassembling the case, check with the naked eye, whether you can see light from locations.

A1

<ALL MODELS>


Established date


Revised date

A2

Error

symptom

Content Check White Balance value

A. Video error_No video/Normal audio

A2

Entry method

1. Press the ADJ button on the remote controller for adjustment.

2. Enter into White Balance of item 13.

3. After recording the R, G, B (GAIN, Cut) value of Color Temp(Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD.

<ALL MODELS>


Advanced Channels Channel Tuning Manual Tuning

When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.)


TUNER input signal strength checking method

A. Video error_Video error, video lag/stop

<ALL MODELS>

A3

Established date

Revised date

Error

symptom

Content

A3 Copyright © 2017 LG Electronics. Inc. All rights reserved.Only for training and service purposes.


Version checking method


1. Checking method for remote control for adjustment

Press the IN-START with the remote control for adjustment

Version

<ALL MODELS>

A4

Established date

Revised date

Error

symptom

Content

A4

v

v


Checking method: 1. Check the signal strength or check whether the screen is normal when the external device is connected.2. After measuring each voltage from power supply, finally replace the MAIN BOARD.3. If you can`t see the UHD live TV, please connect signal at left side of jack. (Korea model only)


TUNER checking part


<ALL MODELS>

A5

Established date

Revised date

Error

symptom

Content



Connection diagram (1)

A. Video error _Vertical/Horizontal bar, residual image, light spot

As the part connecting to the external input, check

the screen condition by signal

A6

Established date

Revised date

Error

symptom

Content

A6

<ALL MODELS>



Check Link Cable(FFC) reconnection condition

A. Video error_Color error

Check the contact condition of the Link Cable, especially dust or mis insertion.

A7

Established date

Revised date

Error

symptom

Content

A7

<ALL MODELS>


A - 1/11

Appendix. Examples of Symptoms(Image error) Check for poor cable contact

Item Symptom

Name Cause Symptom Image

CABLE Color smear Poor broken pin of FFC cable

CABLE R Color Excessive Color is Excessive due to FFC Cable

Contact.

CABLE Screen darkness screen is dark due to poor contact due to disconnection of the FFC cable pin.

CABLE G Color Excessive G color transient due to poor FFC cable

connection

Pin 단선


A - 2/11

Item Symptom


CABLE Color spread LVDS cable connection problem



CABLE Screen stop Due to foreign substance withi nLVDS

cable PIN

Appendix. Examples of Symptoms(Image error) Check for poor cable contact


Check parts by symptom

A - 3/11

Item Symptom


Main Screen noise Bit noise from horizontal screen

Main Screen noise Broken screen due to

Main IC problem

Main Dark picture Dark left-side screen

Main Broken picture Top/bottom screen part

Picture problem due to tuner

Inner side quality problem

Appendix. Examples of Symptoms(Main)


A - 4/11

Item Symptom


Main Broken screen Broken screen in a horizontal manner

Main Screen spread Screen corner appears blurry

Main Color Spread Color spread on the screen

Main Blurry Screen Blurry picture on the screen

Check parts by symptom Appendix. Examples of Symptoms(Main)


A - 5/11

Item Symptom


Main Broken picture No problem at the initial stage, G-color spread after 10 minutes

Main Right-side

Screen

problem

Right-side screen problem

Main LG logo

Screen problem Screen picture spread problem

Main Right-side

picture problem

No problem at the initial stage.

During Heat run, right-side picture

problem

Check parts by symptom Appendix. Examples of Symptoms(Main)


Item Symptom


MODULE Isometric

Horizontal Bar

Isometric horizontal bars occur

throughout the screen

MODULE Internal matter BLU internal foreign matter inflow

MODULE Image broken 6 block image broken

MODULE Image broken Screen sync signal broken

A - 6/11

Check parts by symptom Appendix. Examples of Symptoms(Module)


Item Symptom


MODULE Image broken Internal damage and image breakage

due to external impact

MODULE Bend on the

screen

Bending due to lateral external impact

and internal bending of BLU

MODULE Vertical smear Vertical spreading on cube screen in no

signal

MODULE Over color Screen contour part brightly Over color

A - 7/11



Item Symptom


MODULE Vertical bar Center Vertical Bar

MODULE Screen darkness Center of the screen 1 block dark

MODULE Vertical bar Center Vertical Bar

MODULE

Darkness at the

bottom of the

screen

MODULE internal BLU breakage

A - 8/11



Item Symptom


T-CON screen lower

image broken

T-Con is defective and the picture below

the screen is broken

T-CON screen lower

image broken



T-CON screen lower

image broken



T-CON screen lower

image broken



A - 9/11

Check parts by symptom Appendix. Examples of Symptoms(T-Con)


Item Symptom


T-CON Image Broken T-CON Wafer Locking The strength is

weak and cable contact failure occurs

T-CON Darkness at the

top of the screen

Initial normal operation,

upper darkness during heat run

T-CON Image Broken The entire screen is dark and bit noise

occurs

T-CON Image Broken The entire screen is dark and bit noise

occurs

A - 10/11

Check parts by symptom Appendix. Examples of Symptoms(T-Con)


Appendix : Exchange Power Board (PSU)

No Light No picture/Sound Ok

A - 11/11 Copyright © 2017 LG Electronics. Inc. All rights reserved.Only for training and service purposes.


Check front Power Indicator

B. Power error _No power

A17

Established date

Revised date

Error

symptom

Content

A17

<ALL MODELS>


Established date


Revised date

A18

Error

symptom

Content Check power input voltage and ST-BY 3.5V

B. Power error _No power

A18

Check the DC 13V

Backlight Forward Voltage

Symbol Values

Unit Min Typ Max

65UJ65

VF

117.18 130.2 143.22

Vdc

60UJ65 111.87 124.3 136.73

55UJ65 99.4 106.6 113.8

49UJ65 - 85.05 91.8

43UJ65 - 65.94 71.4

Backlight Forward Voltage

Symbol Values Unit

Min Typ Max 65UJ63

VF

- 192 216

Vdc

60UJ63 - 175 195

55UJ63 - 130.4 141.2

49UJ63 - 111.6 118.8

43UJ63 - 65.94 71.4


Entry method

1. Press the IN-START button of the remote control for adjustment

2. Check the entry into adjustment item 3


POWER OFF MODE checking method

B. Power error _Off when on, off whiling viewing

<ALL MODELS>

A19

Established date

Revised date

Error

symptom

Content


Checking method

1. Press the Setting button on the remote control

2. Select the Sound function of the Menu

3. Select the Sound Out

4. Select TV Speaker


Checking method in menu when there is no audio

C. Audio error_No audio/Normal video

<ALL MODELS>

A20

Established date

Revised date

Error

symptom

Content


Checking order when there is no audio

1.Check the contact condition of or 13V connector of Main Board

2. Measure the 13V input voltage supplied from Power Board(If there is no input voltage, remove and check the connector)

3.Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch theGND and output terminal, the speaker is normal.


Voltage and speaker checking method when there is no audio

C. Audio error_No audio/Normal video

A21

Established date

Revised date

Error

symptom

Content

A21

①

②

③

1 DRV_ON 2 PDIM1

3 GND 4 GND

5 A13 6 A13

7 D13 8 D13

9 GND 10 D13

11 PWR_ON 12 PDIM2 1 SPK_R-

2 SPK_R+

3 SPK_L-

4 SPK_L+

<ALL MODELS>

1 VSYNC 2 SIN

3 GND 4 SCLK

5 DRV_ON 6 PDIM1

7 GND 8 GND

9 A13 10 A13

11 D13 12 D13

13 GND 14 D13

15 PWR_ON 16 PDIM2

17 GND 18 GND

UJ6*

UJ7*


Checking order

1.Check IR cable condition between IR & Main board.( Check picture number① and ②)2.Check the standby 3.5V on the terminal 22 pin (③)3.AS checking the Pre-Amp(IR LED light) , the power is in ON condition, an Analog Tester

needle should move slowly, otherwise, it’s defective.


Remote control operation checking method

D. Function error

A22

Established date

Revised date

Error

symptom

Content

A22

②

③

1 +3.5V

2 WIFI_DM

3 WIFI_DP

4 GND

5 WOL_ON

6 3.5V

7 COMBO_RESET

8 GND

9 COMBO_WAKEUP_DEVICE

10 COMBO_WAKEUP_HOST

11 GND

12 GND

13 NC

14 NC

15 NC

16 EYE_SDA

17 EYE_SCL

18 GND

19 IR

20 LED

21 GND

22 3.5V

23 KEY2

24 KEY1

25 GND

Checking order to check remote control

IR & LOGO light Rear

IREye LED

IR & LOGO light Front

<ALL MODELS>



Remote control operation checking method

D. Function error

A22

Established date

Revised date

Error

symptom

Content

A22

②

③

Checking order

1.Check BT/Wifi cable condition between BT/Wifi assy & Main board.2.Check the 3.5V on the terminal 1

Checking order to check motion remote/wifi

① Wifi & BT Front

Wifi & BT Rear

<ALL MODELS> 1 +3.5V

2 WIFI_DM

3 WIFI_DP

4 GND

5 WOL_ON

6 3.5V

7 COMBO_RESET

8 GND

9 COMBO_WAKEUP_DEVICE

10 COMBO_WAKEUP_HOST

11 GND

12 GND

13 NC

14 NC

15 NC

16 EYE_SDA

17 EYE_SCL

18 GND

19 IR

20 LED

21 GND

22 3.5V

23 KEY2

24 KEY1

25 GND



How to use the Service remote control

D. Function error

A23

Established date

Revised date

Error

symptom

Content

A23

0 4 1 3

0 4 1 3

1. How to access the remote control




D. Function error

A24

Established date

Revised date

Error

symptom

Content

A24

POWER Power On/Off

ETC (Added Function)

[ETC] Each time pressing the KEY button, Mode gets changed to ETC and P-ONLY each time

All KEY function [PIP PR-][PIP PR+][SWAP]

[PIP INPUT][DVI] KEY Function

P-ONLY (Added Function)

Changed to factory mode

All KEY function &[INFO][STILL][HDMI HOT][USB HOT][HDMI4] KEY Action

INPUT Change to the external device mode

ARC Change in the order of 16:9=>Zoom1=>Zoom2=>Cinema Zoom=>Aucto Screen=>4:3=>16:9

PSM Changes in the order of Bright Picture=>Easy Picture=>Cinema=>Spots=>Game=>

Custom PIcture1=>Custom Picture2=>Bright Picture

SSM (Added Function) Standard(user)=>music=>cinema=>sports=>game=>standard(user)

PIP Picture In Picture is activated

TEXT Access to the Power Only mode

CAP Broadcasting caption(on/off)

MPX Stereo mode (mono, stereo, foreign language) access

Used when in factory mode

Simplink (Added Function)

Access to the Simplink-connected device

EYE Digital EYE function ON/OFF

For some Model, access to the Test Pattern

TILT Used for screen tilting change (Access to the old PDP control mode)

2. Remote control part definition




D. Function error

A25

Established date

Revised date

Error

symptom

Content

A25

B-TOOTH (Added function)

Connected to Blue-Tooth

IN-START

Model Nam ex) 42PG60D-NA Current Model Name S/W Version ex) V03.11.0 Current S/W version

MICOM Version ex) V3.05.0 current Mi-Com version UTT ex) User TV total usage time

ADJ POWER OFF STATUS ex) Shows power-off status

Test Pattern (Off=>White=>Red=>Green=>Blue=>Black=>Pattern=>Off) Change

X-STUDIO (Added function)

HDD,USB, external device’s HDD screen is activated

MENU User function gets activated

EXIT Exit from the current mode

TIME SHIFT (Added function)

Moves forward/backward of recorded contents

MUTE Mute function (0 Volume)

IN-STOP SET to factory mode

VOL + - Volume Up/Down

CH + - Channel Up/Down

AV1,2,3 (Added function) Connects to external input 1,2,3

COMP1,2 (Added function)

Connects to Component 1,2

HDMI1,2,3,4 (Add function)

Connects to HDMI 1,2,3,4

DVI (Add function) Connects to DVI



Check items after Main B/D replacement

D. Function error

A26

Established date

Revised date

Error

symptom

Content

A26

A14

Check items afer Main B/D(Model Number D/L, White Balance)

No.7 Select Model Number D/L - Key in the model name and serial number after checking the ID label on the back cover.

1. Press the Service remote control instart Key.

2. Press the Service remote control ADJ Key.

No.13 Select White Balance - Record the R, G, B (GAIN, Cut) value of the

color temperature before main board replacement. After replacing the main board, key in the recorded value.



Adjustment Test pattern

A. Video error_Color error

Press the P-ONLY HDMI HOT CH + or -

You can view 11 types of patterns using the CH+ or - key

Checking item : 1. Defective pixel 2. Residual image 3. MODULE error (ADD-BAR,SCAN BAR..) 4.Video error (Classification of MODULE or Main-B/D!)

A27

Established date

Revised date

Error

symptom

Content

A27

1

2

3


Smart JIG Power Diagnosis

Muitl Gender Guide

(P/N : RAD33187801) (P/N : RAD32507801)

A 28 (1/19) Copyright © 2017 LG Electronics. Inc. All rights reserved.Only for training and service purposes.

15Y

(LF/UF Series)

Power Board Muitl Gender JIG Diagram (P/N: RAD33187801)

13Y/14Y

12Y

15Y

(OLED)

16Y/17Y

(UH/UJ)

16Y

(UH) 16Y/17Y

(UH/SJ) 16Y/17Y

(LH/LJ)

16Y

(UH)

17Y

(SJ/UJ)

28Pin 24Pin

18Pin

24Pin 24Pin

24Pin

28Pin

28Pin

18Pin

28Pin 28Pin 12Pin 12Pin 28Pin

※ 12/13/14Y Smart JIG

connector applied

24Pin

24Pin

NC

Includes 49UJ63

<Defect diagnosis : Power Board Main Board>

16Y

(OLED)

17Y

(OLED)

A 28 (2/19) Copyright © 2017 LG Electronics. Inc. All rights reserved. Only for training and service purposes.

Power Board Muitl Gender JIG Diagnostic model List

Year Product Model

‘15 OLED

EG92/EG93/EG94

EG96

EF95

‘16

OLED

B6

C6

E6

G6

LED

UH95/UH96

UH85/UH93

UH77/UH87

UH75/UH76

UH65/UH68

LH68, LH66, LH60,LH54

‘17 OLED

B7

C7

E7

G7

W7

’17 LED

SJ95/UJ98

SJ85/UJ94

SJ80, UJ77

UJ75/UJ78

UJ65/UJ68

UJ63/UJ67

LJ61/LJ68

LJ55/LJ58

<15Y/16Y/17Y OLED Model, 16Y/17Y LED Model>

Existing 12Y, 13Y, 14Y, 15Y LED models included

15Y, 16Y, 17Y OLED, 16/17 Y LED model Power diagnosis function newly added


1

2

▶ Power Board Muitl Gender JIG

2014 LCD POWER” “A: 2013

Power Board Muitl Gender How to Connect

▶ Connect the Muiti Gender to the connector (black) as shown in picture 2 of the Smart JIG.


Smart Jig Voltage Setting

1 2

▶ Check power board voltage.

▶ Switch the product S/W in JIG to LCD.

▶ LCD MODEL Check the power voltageand switch to the correct voltage.

※ Note on set up

(The correct power diagnosis can be made only if it is set correctly.)

- 24V Power Board : Change the switch to 24V of Smart Jig Voltage

- 20V Power Board : Change the switch to 24V of Smart Jig Voltage

- 13.2V/18V Power Board : Change the switch to 24V of Smart Jig Voltage

Power B/D Smart Jig Voltage Switch

24V 24V

20V 20V

13.2V/18V 24V


`15Y OLED(EG96,EF95,EG92,EG93,EG94) Power Board Diagnostic method (1)

▶ Disconnect the Main Board 24Pin Power Cable connector. ▶ Connect the 24Pin Power Cable connector to the MuitlGender JIG 24Pin connector

3

1 2

▶ Check power board voltage.

▶ Switch the product S/W in JIG to LCD.

▶ LCD MODEL Check the power voltageand switch(24V) to the correct voltage.

▶ Fix the LCD MODEL switch to 24V.(Smart JIG)

4


`15Y OLED(EG96,EF95,EG92,EG93,EG94) Power Board Diagnostic method (2)

5 6

▶ When the OK LED(24V,12V) turns on, Power Board is normal.

▶ When the NG LED turns on, the Power Board can be judged as defective.


`16Y OLED(B6) Power Board Diagnostic method

▶ Connect the 24Pin Power Cable connector to the Multi gender JIG 24Pin connector.

1

3

2

▶ Switch the LCD MODEL S/W to 24V by checking the power voltage.



▶ When the NG LED turns on, the Power Board can be judged as defective.


`16Y OLED(C6) Power Board Diagnostic method

4

1

3

2

▶ Check power board voltage.▶ Smart JIG: Fix the LCD MODEL switch to 24V.(Smart JIG)

▶ Disconnect the Main Board 24Pin Power Cable connector.

▶ Connect the 24Pin Power Cable connectorto the Muitl Gender JIG 24Pin connector



`16Y OLED(E6) Power Board Diagnostic method

4

1

3

2

▶ Check power board voltage. ▶ Fix the LCD MODEL switch to 24V.(Smart JIG)


▶ Connect the 24Pin Power Cable connector to the Muitl Gender JIG 24Pin connector


▶ When the NG LED turns on, the Power Board can be judged as defective. A 28 (10/19)

Copyright © 2017 LG Electronics. Inc. All rights reserved. Only for training and service purposes.

`16Y OLED(G6) Power Board Diagnostic method

4

1

3

2

▶ Check power board voltage.▶ Fix the LCD MODEL switch to 24V.(Smart JIG)


▶ Connect the 24Pin Power Cable connectorto the Muitl Gender JIG 24Pin connector


▶ When the NG LED turns on, the Power Boardcan be judged as defective.A 28 (11/19)


`17Y OLED(B7/C7/E7/G7) Power Board Diagnostic method

1

3

2

4

▶ Disconnect the Main Board 28Pin Power Cable connector. ▶ Connect the 28Pin Power Cable connectorto the Muitl Gender JIG 28Pin connector

▶ Switch the LCD MODEL S/W to 20V by checkingthe power voltage.



▶ When the NG LED turns on, the Power Boardcan be judged as defective.A 28 (12/19)


`17Y OLED(W7) Power Board Diagnostic method

1

3

2

4

▶ Disconnect the Main Board 24Pin Power Cable connector. ▶ Connect the 24Pin Power Cable connector to the Muitl Gender JIG 28Pin connector

▶ Switch the LCD MODEL S/W to 20V by checking the power voltage. ▶ Fix the LCD MODEL switch to 20V.(Smart JIG)




`16Y/`17Y LED 18Pin Power Board Diagnostic method

4

1

3

2







`16Y LED(UH95/UH96) Power Board Diagnostic method

4

1

3

2




▶ When the OK(24V,12V) LED turns on, Power Board is normal.



`16Y/`17Y LED(UH85/UH93) Power Board Diagnostic method

4

1

3

2







`16Y/`17Y LED 12Pin Power Board Diagnostic method

4

1

3

2







`16Y LED 12Pin Power Board Diagnostic method

4

1

3

2







`17Y LED 28Pin Power Board Diagnostic method

4

1

3

2







Documents

LED TV SERVICE MANUAL - YoReparo