CONFIDENTIAL
OLED TV
SERVICE MANUAL
CHASSIS : ED81W
MODEL : OLED65G8PLA
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL70542503 (1804-REV00)
Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
CONTENTS
CONTENTS ............................................................................................... 2
SAFETY PRECAUTIONS ......................................................................... 3
SERVICING PRECAUTIONS .................................................................... 4
SPECIFICATION ....................................................................................... 6
SOFTWARE UPDATE .............................................................................. 10
BLOCK DIAGRAM ................................................................................... 11
EXPLODED VIEW ................................................................................... 17
DISASSEMBLY GUIDE ............................................................ APPENDIX
TROUBLE SHOOTING GUIDE ................................................. APPENDIX
-2- Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
Exploded View.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
An isolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC Do not use a line Isolation Transformer during this check.
power line. Use a transformer of adequate power rating as this Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor
protects the technician from accidents resulting in personal injury between a known good earth ground (Water Pipe, Conduit, etc.)
from electrical shocks. and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
It will also protect the receiver and it's components from being with 1000 ohms/volt or more sensitivity.
damaged by accidental shorts of the circuitry that may be Reverse plug the AC cord into the AC outlet and repeat AC voltage
inadvertently introduced during the service operation. measurements for each exposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
If any fuse (or Fusible Resistor) in this TV receiver is blown, 0.5 mA.
replace it with the specified. In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
When replacing a high wattage resistor (Oxide Metal Film Resistor, repaired before it is returned to the customer.
over 1 W), keep the resistor 10 mm away from PCB.
Leakage Current Hot Check circuit
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer,
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.
-3- Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
SERVICING PRECAUTIONS
CAUTION: Before servicing receivers covered by this service 2. After removing an electrical assembly equipped with ES
manual and its supplements and addenda, read and follow the devices, place the assembly on a conductive surface such as
SAFETY PRECAUTIONS on page 3 of this publication. aluminum foil, to prevent electrostatic charge buildup or expo-
NOTE: If unforeseen circumstances create conflict between the sure of the assembly.
following servicing precautions and any of the safety precautions 3. Use only a grounded-tip soldering iron to solder or unsolder
on page 3 of this publication, always follow the safety precau- ES devices.
tions. Remember: Safety First. 4. Use only an anti-static type solder removal device. Some sol-
der removal devices not classified as “anti-static” can generate
General Servicing Precautions electrical charges sufficient to damage ES devices.
1. Always unplug the receiver AC power cord from the AC power 5. Do not use freon-propelled chemicals. These can generate
source before; electrical charges sufficient to damage ES devices.
a. Removing or reinstalling any component, circuit board 6. Do not remove a replacement ES device from its protective
module or any other receiver assembly. package until immediately before you are ready to install it.
b. Disconnecting or reconnecting any receiver electrical plug (Most replacement ES devices are packaged with leads elec-
or other electrical connection. trically shorted together by conductive foam, aluminum foil or
c. Connecting a test substitute in parallel with an electrolytic comparable conductive material).
capacitor in the receiver. 7. Immediately before removing the protective material from the
CAUTION: A wrong part substitution or incorrect polarity leads of a replacement ES device, touch the protective mate-
installation of electrolytic capacitors may result in an explo- rial to the chassis or circuit assembly into which the device will
sion hazard. be installed.
2. Test high voltage only by measuring it with an appropriate CAUTION: Be sure no power is applied to the chassis or cir-
high voltage meter or other voltage measuring device (DVM, cuit, and observe all other safety precautions.
FETVOM, etc) equipped with a suitable high voltage probe. 8. Minimize bodily motions when handling unpackaged replace-
Do not test high voltage by "drawing an arc". ment ES devices. (Otherwise harmless motion such as the
3. Do not spray chemicals on or near this receiver or any of its brushing together of your clothes fabric or the lifting of your
assemblies. foot from a carpeted floor can generate static electricity suf-
4. Unless specified otherwise in this service manual, clean ficient to damage an ES device.)
electrical contacts only by applying the following mixture to the
contacts with a pipe cleaner, cotton-tipped stick or comparable General Soldering Guidelines
non-abrasive applicator; 10 % (by volume) Acetone and 90 % 1. Use a grounded-tip, low-wattage soldering iron and appropri-
(by volume) isopropyl alcohol (90 % - 99 % strength) ate tip size and shape that will maintain tip temperature within
CAUTION: This is a flammable mixture. the range or 500 °F to 600 °F.
Unless specified otherwise in this service manual, lubrication 2. Use an appropriate gauge of RMA resin-core solder composed
of contacts in not required. of 60 parts tin/40 parts lead.
5. Do not defeat any plug/socket B+ voltage interlocks with which 3. Keep the soldering iron tip clean and well tinned.
receivers covered by this service manual might be equipped. 4. Thoroughly clean the surfaces to be soldered. Use a mall wire-
6. Do not apply AC power to this instrument and/or any of its bristle (0.5 inch, or 1.25 cm) brush with a metal handle.
electrical assemblies unless all solid-state device heat sinks Do not use freon-propelled spray-on cleaners.
are correctly installed. 5. Use the following unsoldering technique
7. Always connect the test receiver ground lead to the receiver a. Allow the soldering iron tip to reach normal temperature.
chassis ground before connecting the test receiver positive (500 °F to 600 °F)
lead. b. Heat the component lead until the solder melts.
Always remove the test receiver ground lead last. c. Quickly draw the melted solder with an anti-static, suction-
8. Use with this receiver only the test fixtures specified in this type solder removal device or with solder braid.
service manual. CAUTION: Work quickly to avoid overheating the circuit
CAUTION: Do not connect the test fixture ground strap to any board printed foil.
heat sink in this receiver. 6. Use the following soldering technique.
a. Allow the soldering iron tip to reach a normal temperature
Electrostatically Sensitive (ES) Devices (500 °F to 600 °F)
Some semiconductor (solid-state) devices can be damaged eas- b. First, hold the soldering iron tip and solder the strand
ily by static electricity. Such components commonly are called against the component lead until the solder melts.
Electrostatically Sensitive (ES) Devices. Examples of typical ES c. Quickly move the soldering iron tip to the junction of the
devices are integrated circuits and some field-effect transistors component lead and the printed circuit foil, and hold it there
and semiconductor “chip” components. The following techniques only until the solder flows onto and around both the compo-
should be used to help reduce the incidence of component dam- nent lead and the foil.
age caused by static by static electricity. CAUTION: Work quickly to avoid overheating the circuit
1. Immediately before handling any semiconductor component or board printed foil.
semiconductor-equipped assembly, drain off any electrostatic d. Closely inspect the solder area and remove any excess or
charge on your body by touching a known earth ground. Alter- splashed solder with a small wire-bristle brush.
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.
-4- Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
IC Remove/Replacement 3. Solder the connections.
Some chassis circuit boards have slotted holes (oblong) through CAUTION: Maintain original spacing between the replaced
which the IC leads are inserted and then bent flat against the cir- component and adjacent components and the circuit board to
cuit foil. When holes are the slotted type, the following technique prevent excessive component temperatures.
should be used to remove and replace the IC. When working with
boards using the familiar round hole, use the standard technique Circuit Board Foil Repair
as outlined in paragraphs 5 and 6 above. Excessive heat applied to the copper foil of any printed circuit
board will weaken the adhesive that bonds the foil to the circuit
Removal board causing the foil to separate from or "lift-off" the board. The
1. Desolder and straighten each IC lead in one operation by following guidelines and procedures should be followed when-
gently prying up on the lead with the soldering iron tip as the ever this condition is encountered.
solder melts.
2. Draw away the melted solder with an anti-static suction-type At IC Connections
solder removal device (or with solder braid) before removing To repair a defective copper pattern at IC connections use the
the IC. following procedure to install a jumper wire on the copper pattern
Replacement side of the circuit board. (Use this technique only on IC connec-
1. Carefully insert the replacement IC in the circuit board. tions).
2. Carefully bend each IC lead against the circuit foil pad and
solder it. 1. Carefully remove the damaged copper pattern with a sharp
3. Clean the soldered areas with a small wire-bristle brush. knife. (Remove only as much copper as absolutely necessary).
(It is not necessary to reapply acrylic coating to the areas). 2. carefully scratch away the solder resist and acrylic coating (if
used) from the end of the remaining copper pattern.
"Small-Signal" Discrete Transistor 3. Bend a small "U" in one end of a small gauge jumper wire and
Removal/Replacement carefully crimp it around the IC pin. Solder the IC connection.
1. Remove the defective transistor by clipping its leads as close 4. Route the jumper wire along the path of the out-away copper
as possible to the component body. pattern and let it overlap the previously scraped end of the
2. Bend into a "U" shape the end of each of three leads remain- good copper pattern. Solder the overlapped area and clip off
ing on the circuit board. any excess jumper wire.
3. Bend into a "U" shape the replacement transistor leads.
4. Connect the replacement transistor leads to the corresponding At Other Connections
leads extending from the circuit board and crimp the "U" with Use the following technique to repair the defective copper pattern
long nose pliers to insure metal to metal contact then solder at connections other than IC Pins. This technique involves the
each connection. installation of a jumper wire on the component side of the circuit
board.
Power Output, Transistor Device
Removal/Replacement 1. Remove the defective copper pattern with a sharp knife.
1. Heat and remove all solder from around the transistor leads. Remove at least 1/4 inch of copper, to ensure that a hazardous
2. Remove the heat sink mounting screw (if so equipped). condition will not exist if the jumper wire opens.
3. Carefully remove the transistor from the heat sink of the circuit 2. Trace along the copper pattern from both sides of the pattern
board. break and locate the nearest component that is directly con-
4. Insert new transistor in the circuit board. nected to the affected copper pattern.
5. Solder each transistor lead, and clip off excess lead. 3. Connect insulated 20-gauge jumper wire from the lead of the
6. Replace heat sink. nearest component on one side of the pattern break to the
lead of the nearest component on the other side.
Diode Removal/Replacement Carefully crimp and solder the connections.
1. Remove defective diode by clipping its leads as close as pos- CAUTION: Be sure the insulated jumper wire is dressed so the
sible to diode body. it does not touch components or sharp edges.
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 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.
-5- Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
1. Application range 3. Test method
This specification is applied to the OLED TV with ED81W (1) Performance: LGE TV test method followed
chassis. (2) Demanded other specification
- Safety : CE, IEC specification
- EMC : CE, IEC specification
- Wireless : Wireless HD Specification (Option)
2. Requirement for Test
Each part is tested as below without special appointment.
(1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C
(2) Relative Humidity: 65 % ± 10 %
(3) Power Voltage
: Standard input voltage (AC 100~240 V, 50/60 Hz)
* Standard Voltage of each products is marked by models.
(4) Specification and performance of each parts are followed
each drawing and specification by part number in
accordance with BOM.
(5) The receiver must be operated for about 20 minutes prior
to the adjustment.
4. Model General Specification
No. Item Specification Remarks
DTV & Analog (Total 37 countries)
DTV (MPEG2/4, DVB-T) : 26 countrie
Germany, 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 countries
UK(Ireland), Sweden, Denmark, Finland, Norway, Ukraine, Kazakhstan,
Russia, Italy, Croatia, Serbia
DTV (MPEG2/4, DVB-C) : 37 countries
Germany, 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
EU(PAL Market-36Countries)/CIS
1 Market
+ Morocoo(Africa)
DTV (MPEG2/4,DVB-S) : 37 countries
Germany, 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 satellites
ABS1 75.0E, AMOS 4.0W, ASIASAT3S 105.5E, ASTRA 19.2E, ASTRA
23.5E, ASTRA 28.2E, ASTRA 4.8E, ATLANTIC BIRD2 8.0W, ATLAN-
TIC 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 7.3WEUTELSAT 16.0E,
EXPRESS AM1 40.0E, EXPRESS AM3 140.0E, EXPRESS AM33 96.5E,
HELLASSAT 39.0E, HISPASAT 1CDE 30.0WHOTBIRD 13.0E, INTEL-
SAT10&7 68.5E, INTELSAT15 85.2E, INTELSAT1R 50.0W, INTEL-
SAT903 33.5W, INTELSAT904 60.0E, NILESAT 7.0W, NSS12 57.0E,
THOR 0.8W, TURKSAT 42.0E, YAMAL201 90.0E, OTHER
-6- Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
No. Item Specification Remarks
(1) Digital TV
- DVB-T
- DVB-T2*
- DVB-C
2 Broadcasting system *:Depending on country
- DVB-S/S2*
(2) Analogue TV
- PAL/SECAM, B/G,I,D/K
- SECAM L
(1) Digital TV
1) DVB-T/T2
- VHF III : 174~230MHz
- UHF IV : 470~606MHz
- UHF V : 606~862MHz
- S Band II : 230~300MHz
3 Program coverage - S Band III : 300~470MHz
2) DVB-C
- 46 ~ 890MHz
3) DVB-S/S2
- 950~2150MHz
(2) Analogue TV
- 46~862MHz
► 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
Analog : Upper Heterodyne 16-QAM : 1/2, 2/5, 2/3, 3/4, 5/6
4 Receiving system
Digital : COFDM, QAM 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
Antenna,
5 Head phone out HDMI1, HDMI2, HDMI3, HDMI4 USB1,
USB2, USB3
6 HDMI Input (4EA) HDMI1, HDMI2, HDMI3, HDMI4
7 SPDIF out (1EA) SPDIF out
8 USB (3EA) EMF, For SVC (download)
9 Ethernet Connect(1EA) Ethernet Connect
10 PCMCIA Card slot (1EA) PCMCIA slot
-7- Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
5. External Input Format
5.1. HDMI : EDID DATA : Refer to adjust specification.
5.1.1. DTV mode
No Resolution H-freq (kHz) V-freq (Hz) Pixel clock (MHz) Proposed Remarks
1 640*480 31.46 59.94 25.12 SDTV 480P
2 640*480 31.5 60.00 25.12 SDTV 480P
3 720*480 15.73 59.94 13.50 SDTV, DVD 480I(525I)
4 720*480 15.75 60.00 13.51 SDTV, DVD 480I(525I)
Spec. out but display
SDTV, DVD 576I(625I)
5 720*576 15.62 50.00 13.50
50Hz
6 720*480 31.47 59.94 27 SDTV 480P
7 720*480 31.5 60.00 27.02 SDTV 480P
8 720*576 31.25 50.00 27 SDTV 576P
9 1280*720 44.96 59.94 74.17 HDTV 720P
10 1280*720 45 60.00 74.25 HDTV 720P
11 1280*720 37.5 50.00 74.25 HDTV 720P
12 1920*1080 28.12 50.00 74.25 HDTV 1080I
13 1920*1080 33.72 59.94 74.17 HDTV 1080I
14 1920*1080 33.75 60.00 74.25 HDTV 1080I
15 1920*1080 26.97 23.97 63.29 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 67.5 60.00 148.50 HDTV 1080P
22 1920*1080 112.5 100 297.00 HDTV 1080P 120Hz Add
23 1920*1080 134.86 119.88 296.70 HDTV 1080P 120Hz Add
24 1920*1080 135 120 297.00 HDTV 1080P 120Hz Add
25 3840*2160 53.95 23.98 296.70 UDTV 2160P
26 3840*2160 54 24.00 297.00 UDTV 2160P
27 3840*2160 56.25 25.00 297.00 UDTV 2160P
28 3840*2160 61.43 29.97 296.70 UDTV 2160P
29 3840*2160 67.5 30.00 297.00 UDTV 2160P
30 3840*2160 112.5 50.00 594 UDTV 2160P
31 3840*2160 134.86 59.94 593.40 UDTV 2160P
32 3840*2160 135 60.00 594 UDTV 2160P
33 4096*2160 53.95 23.98 296.70 UDTV 2160P
34 4096*2160 54 24.00 297 UDTV 2160P
35 4096*2160 56.25 25.00 297 UDTV 2160P
36 4096*2160 61.43 29.97 296.70 UDTV 2160P
37 4096*2160 67.5 30.00 297 UDTV 2160P
38 4096*2160 112.5 50.00 594 UDTV 2160P
39 4096*2160 134.86 59.94 593.40 UDTV 2160P
40 4096*2160 135 60.00 594 UDTV 2160P
-8- Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
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 VESA(SVGA)
5 1024*768 48.36 60.00 65 VESA(XGA)
6 1360*768 47.71 60.01 84.75 VESA(WXGA)
7 1152*864 54.34 60.05 80 VESA
8 1280*1024 63.98 60.02 109.00 SXGA Support to HDMI-PC
9 1920*1080 67.5 60 158.40 WUXGA(Reduced Blanking)
10 1920*1080 135 120 297
11 3840*2160 54 24.00 297.00 UDTV 2160P
12 3840*2160 56.25 25.00 297.00 UDTV 2160P
13 3840*2160 67.5 30.00 297.00 UDTV 2160P
14 4096*2160 53.95 23.97 296.703 UDTV 2160P
15 4096*2160 54 24 297 UDTV 2160P
-9- Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
SOFTWARE UPDATE
1. USB
(1) Put the USB Stick to the USB socket
(2) Go to General menu then enter to About This TV
(3) Enter the USB EXPERT MODE.
(4) Updating is staring.
(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 "ADJ" key in service remote controller.
(2) Select "Tool Option 1" and Push “OK” button.
(3) Punch in the number. (Each model has their number.)
- 10 - Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
X_TAL 24MHz DDR4 2133X 16
\(Main Clock) (4Gb X2EA)
Tuner DDR4 2133 X 16
Tuner : I2C, TS M0 M1 (4Gb X 2EA)
R
Analog Demod
E
A DDR4 2133 X 16
R M2 (4Gb X 2EA)
(H) CVBS/SIF
SYSTEM EEPROM
R USB1 (2.0) OCP 1.5A I2C 4 (256Kb)
E
A USB2 (2.0) OCP 1.5A USB
R
IC101 eMMC
CI USB3 (2.0) OCP 1.5A (8GB)
1. O18 Circuit Block Diagram
O18
TS 51P
VBY1 41P
HDMI1 (2.0)
- 11 -
Sub Board
R HDMI2 (2.0)
E (ARC) AUD_LRCH Audio AMP 1
HDMI Front
A HDMI3 (2.0) (NTP7515D)
R Depending on model 0X54
HDMI4 (2.0)
CVBS/L/R AV Audio AMP 2 Woofer
BLOCK DIAGRAM
R AUD_LRCH
Copyright ©
(NTP7515D)
E LAN ETHERNET YPbPr COMP 0X56
A
R
AUD_LRCH_TW
Audio AMP 3 Tweeter
AMP H/P (NTP7515D)
BLUTOOTH Line-Out 0X54
USB_WIFI-BT TI
WIFI
SUB LED I2S
ASSY IR SPDIF OUT OPTIC
Only for training and service purposes.
KEY I2C 0
IR KEY I2C 4
SoC_RST Micom for motor PWM
controll
Sub Micom
(RENESAS R5F100G)
(RENESAS R5F100G) PWM FAN1 Motor 1, 2, 3, 4
I2C 1
(FAN2)
LG Electronics. Inc. All rights reserved.
LNB_OUT +3.3V_TU
Main SoC Tuner 2. Tuner
O18 LNB
+3.3V_RF
SAT_AGC
+3.5V_ST_TU
LNB2_OU
T
+3.3V_DEMOD
LNB2_OUT
FE_DEMOD_TS_DATA[0~7], RESET, ERROR, MCLK,SYNC, +D_Demod_Core
VALID TS1[0~7], RESET, ERROR, MCLK,SYNC, VALID
FE_DEMOD2_TS_DATA[0~7], RESET, ERROR, MCLK,SYNC,
VALID
+1.2V_DEMOD
TS2[0~7], RESET, ERROR, MCLK,SYNC, VALID
- 12 -
I2C_SDA/SCL_3_Demod SCL_Demod
SDA_Demod
I2C_SDA/SCL_5_TU SCL_RF
SDA_RF
Copyright ©
TU_CVBS_SOC CVBS
IF_AGC
IF_AGC
TU_SIF_TU
SIF
Only for training and service purposes.
TADC_INN/P IF Filter IF_N
IF_P
LG Electronics. Inc. All rights reserved.
3. CI SLOT
- 13 - Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Depending on model
A 1
AV
AV1 Jack Side SOC Side
ACK
Phone JACK Main IC
AV_CVBS_IN AV1_CVBS_IN_SOC
AR15 [CVBS_IN2]
AR10 [AUAD_L_CH2_IN
COMP2/AV_L_IN AUAD_L_CH2_IN AT10 [AUAD_R_CH2_IN]
COMP2/AV_R_IN AUAD_R_CH2_IN
Component 1
Phone JACK COMP2_SOG2_IN_SOC
COMP2_Y_IN_SOC AR12 [SOY1_IN]
COMP2_Pb_IN_SOC AT12 [Y1_IN]
COMP2_Pb AR13 [PB1_IN]
COMP2_Pr_IN_SOC
COMP2_Y AU14 [PR1_IN]
4. Video & Audio IN/OUT
COMP2_Pr
Front Speaker
Audio AMP
[SCK]
[LRCK]
[DACLRCH]
- 14 -
[I2C_SCL_0/SDA_0]
Woofer
[GPIO17]
Speaker
Audio AMP AMP_RESET
Copyright ©
Tweeter
Speaker
[DACSLRCH(I2S DATA)]
Audio AMP [I2C_SCL_4/SDA_4]
AMP_MUTE
(WOOFER_MUTE) MICOM
SPDIF OUT
SPDIF_OUT
Only for training and service purposes.
AU9 [IEC958OUT]
ARC OUT
(HDMI2) SPDIF_OUT_ARC
AL34 [ARC_OUT]
H/P JACK HP_LOUT_JACK
HP_ROUT_JACK HP AMP AR9 [AUDA_OUTL]
LG Electronics. Inc. All rights reserved.
TPA6138A2 AT9 [AUDA_OUTR]
Main IC
MICOM
5. HDMI 2.0
CEC_REMOTE
+5V
Port_1
HDMI 1 [HDMI2_1_SDA]
DDC_I2C_1 HDMI2.0 HDCP1.4
(2.0)_V [HDMI2_1_SCL]
LGE PHY HDCP2.2
HDMI_HPD_1
[HDMI2_1_HPD]
CEC_REMOTE
+5V
HDMI 2 Port_2
[HDMI2_2_SDA]
(2.0)_V DDC_I2C_2 HDMI2.0 HDCP1.4
[HDMI2_2_SCL]
ARC LGE PHY HDCP2.2
HDMI_HPD_2
[HDMI2_2_HPD]
SPDIF_OUT_ARC
[PHY0_ARC_OUT]
- 15 -
CEC_REMOTE
+5V
Port_3
HDMI 3 [HDMI2_3_SDA]
DDC_I2C_3 HDMI2.0 HDCP1.4
(2.0)_V [HDMI2_3_SCL]
LGE PHY HDCP2.2
HDMI_HPD_3
[HDMI2_3_HPD]
SPDIF_OUT_ARC
Copyright ©
CEC_REMOTE
+5V
Port_4
HDMI 4 [HDMI2_4_SDA]
(2.0)_V DDC_I2C_4 HDMI2.0 HDCP1.4
[HDMI2_4_SCL]
LGE PHY HDCP 2.2
HDMI_HPD_4
[HDMI2_4_HPD]
Only for training and service purposes.
LG Electronics. Inc. All rights reserved.
Main IC
USB2.0_1_DM0/DP1 +5V_USB_1 USB 2
[USB3_0_DP0/DM0] (2.0)_V
USB_CTL1
[EB_CS0] OCP BD224G
USB2.0_2_DP1 / DM1 +5V_USB_2 USB 2
[USB2_1_DP0 / DM0]
USB_CTL2 (2.0)_V
[GPIO95] OCP BD224G
USB2.0_3_DP0 / DM0 +5V_USB_3
[USB2_0_DP0 / DM0] USB 3
6. USB / Wi-Fi / BT / UART
USB_CTL3 (2.0)_V
[SPI_DO1] OCP BD224G
IR + Wi-Fi /BT
WIFI_DP / DM
[USB2_2_DP0 / DM0] Wafer 14P
P4000
- 16 -
COMBO_RESET
BT_WAKEUP_DEVICE +3.5V_WIFI
BT_WAKEUP_HOST
WIFI_EN
MICOM
IC3000 WOL/WIFI_POWER_ON
Copyright ©
SOC_RX/TX
SOC_RX/TX UART wafer
P10001
[UART0_RXD/GPIO106]
SOC_RX/TX
[UART0_TXD/GPIO105]
Only for training and service purposes.
LG Electronics. Inc. All rights reserved.
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 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.
430
413
900
T-Con Board
571
200T
570
431
414
821
120
811
530
411
531
421
500
820
501
830
540
423
812
121
550
422
551
412
552
870
860
850
840
400
LV1 LV2
310
AR2
200
- 17 - Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
DISASSEMBLY GUIDE
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
※ Follow the Manual (1-1, 1-2, 2-1, 2-2, ... )
Disassemble the Module
(1-1) Unfasten the screws 2EA and pull out the Cable with Brackets from ‘Cover, Rear’
(1-2) Pull out the ‘Bracket, FPC Protector’ from ‘Bracket, FPC Holder’ and separate brackets from cable.
1-1
Rear Side
1-1 1-1
Cover, Rear
1-2
Cable Bracket, FPC Holder Bracket, FPC Protector
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(2-1) Detach the ‘Cover, FPC Cable Outer’ from ‘Cover Ass’y, Glass’ by pulling the cable upwards.
(2-2) Unfasten the screws 2EA.
2-2
Cover Ass’y, Glass Cover, FPC Cable Outer
Rear View
Cable
2-2
2-2 2-2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(3-1) Detach Double-sided tapes 4EA by Inserting the spatula between the glass and the module.
※ CAUTION
1. Push the spatula completely the [top or bottom] of the panel so that the double-sided tape is completely off and then pull up the module.
2. Do not remove the module by your hands before removing completely double sided tapes.(using a only spatula for removing double sided tape)
3. If you insert the spatula too deeply, it can cause the damage the metal of the ‘Glass Assembly’, So be careful to insert it only to the allowable range.
3-1
Upper Corners
spatula
3-1 3-1
3-1 3-1
Direction
CAUTION!
Front View
3-1 3-1
* Allowable range of Spatula Module Cover Ass’y, Glass
30mm 30mm
Bottom Corners
Metal Attached Area of Glass Assembly
20mm
70mm
Direction
CAUTION!
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(3-2) Grasp the bottom of the module and pull it forward a little.
3-2
Concept Image
Module
Cover Ass’y, Glass
※ CAUTION
If the module is pulled more than necessary, damage to the PEM-nut of the glass assembly or module bending may occur.
So, Pull the Module out only to get away magnets at bottom of module slightly(About 30mm) from glass except 5 magnets at top side of
module.
300mm
Magnet attach points at top side
Magnet attach points at bottom side
30mm
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(4-1) Detach the module by lifting the module upward.
(4-2) Extract the cable through the hole.
(4-3) Remove Double-sided tapes 6EA that detached at “(3-1)”
4-1
Concept Image
Module
Cover Ass’y, Glass
4-2 4-3
Cable Upper
Corners
Bottom
Corners
3-4 3-4
Double-sided
tape
3-4 3-4
Double-sided
tape
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
Disassemble the Cover Ass'y, Front Décor
(5-1) Insert a Jig(like “ㅡ” Driver) between glass and latch of Cover Ass’y, Front Décor(bottom/left area).
(5-2) Dismantle a latch like below picture using principle of lever.
(5-3) Dismantle the Latch of other side in the same way.
(5-4) Hold the left/right end and raise up to dismantle the Cover Ass'y, Front Décor.
※ CAUTION
If you push the Grille Area of “Cover Ass’y, Front Décor” especially inside area more than 8mm away from outline, it can cause the dent .
So, Do not push or touch with force the grille area.
Cover Ass'y, Front Décor
Latch
5-1 5-2
Clean Cloth for preventing Glass Scratch
Don’t push or touch with force the Grille area.
5-4
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
Disassemble the Cover Ass'y, Glass
(6-1) Unfasten the screw 4ea holing a Cove Assy, Glass. ( Cover Assy, Glass– Box Assy, AIO)
(6-2) Separate the Cove Assy, Glass and Box Assy, AIO by sliding to the front direction.
6-1
O X
6-1 6-1 6-1 6-1
6-2
Cover Assy, Glass
Box Assy, AIO
Front direction Front direction
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
Disassemble the Box Assy, AIO
(7-1) Unfasten the screw 4ea.
(7-2) Turn Box Assy, AIO over.
7-1
Front View of Box Assy, AIO
7-1 7-1 7-1 7-1
7-2
Front Direction based on Set
Power Cord
Rear Direction based on Set
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(8-1) Unfasten the screw 13ea.
(8-2) Unfasten the screw 4ea.
8-1
Bottom View of Box Assy, AIO
8-1 8-1
8-1 8-1 8-1
8-1 8-1
8-1
8-1 8-1 8-1 8-1 8-1
8-2
Rear Direction based on Set
8-2 8-2 8-2 8-2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(9-1) Turn Box Assy, AIO over again.
(9-2) Slide the Cover Assy, AIO Top as shown below picture.
9-1
Rear Direction based on Set
Front Direction based on Set
9-2
Front View of Box Assy, AIO
※ Notice
When assemble Cover Assy, AIO Top Cover Assy, AIO Top
First, Connect 4P Harness and 12P Harness.
Second, Slide the Cover Assy, AIO Top as shown below picture. NG OK
Cover Assy, AIO Bottom
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(10-1) Disconnect Joystick PCB and Harness and remove the Cover Assy, AIO Rear.
10-1
Joystick PCB
Harness
Cover Assy, AIO Rear
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(11-1) Lift up front area of Cover Assy, AIO
(11-2) Disconnect 4P Harness, 12P Harness and Remove the Cover Assy, AIO Top
11-1
11-2
12P Harness
4P Harness
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(12-1) Unfasten the screw 1ea and disconnect Power Cord from Box Assy, AIO
(12-2) Disconnect P251 Harness → P201 & P10002.
12-1 12-2
Power Cord P251
P10002
P201
12-1
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(13-1) Unfasten the screw 6ea and disassemble Plate, Power PCB Shield.
(13-2) Remove the Thermal Pad 2ea and remove the Power PCB.(Store Thermal Pads for reassembling)
13-1 13-2
13-1 13-1 13-1
13-2 13-2
13-1 13-1 13-1
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(14-1) Remove the Thermal Pad 1ea.(Store Thermal Pads for reassembling)
(14-2) Unfasten the Screw 4ea and disconnect FFC Cable for removing Sub Main PCB Assy .
14-1
14-1
14-2
14-2 14-2
FFC Cable
Open the
Clip 14-2 14-2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(15-1) Disconnect SUB PCB 10006 Cable
(15-2) Unfasten the Screw 7ea.
15-1
P10006
15-2
15-1 15-1
15-1
15-1
11-1
15-1 15-1
15-1
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(16-1) Unfold the Plate, AIO Frame.
16-1
T-Con 2 in 1 Cable
BLACK
11-1 WHITE
Plate, AIO Frame
※ Notice
Insulator Insertion Area
When assemble Box Assy, AIO
First, Connect the T-Con 2 in 1 Cable.
Second, Insert the FFC Cable between Plate, AIO Frame and Insulator folding the Plate, AIO Frame .
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(17-1) Disconnect T-Con 2 in 1 Cable.
(17-2) Remove the EMI Tape.(Store EMI Tape for reassembling)
(17-3) Disconnect T-Con “A” and “B” Cable
17-2
T-Con “A”
17-3 17-1
T-Con 2 in 1 Cable
BLACK
WHITE
T-Con “B”
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(18-1) Unfasten the Screw 10ea.
18-1
18-1 18-1 18-1 18-1 18-1
18-1
18-1
18-1
18-1 18-1
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(19-1) Remove the T-Con PCBA and Main PCBA and then disassembly is completed.
Gap Pad
Gap Pad
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
ASSEMBLY GUIDE
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
※ Follow the Manual (1-1, 1-2, 2-1, 2-2, ... )
Assemble the AIO
(1-1) Attach the Gap Pad to the mark.
Gap Pad
Gap Pad
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
*(2-1) Remove the Insulation Sheet at the bottom of T-con PCBA. ( Only New T-con include Insulation Sheet)
(2-2) After Placing the T-con and Main PCBA, Fasten the screw 10EA
2-2
2-2
2-2
2-2 2-2 2-2 2-2 2-2
2-2
2-2
2-2
2-2 2-2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(3-1) Connect the Cables between Main PCBA and T-con PCBA
(3-2) Attach the EMI Tape.
(3-3) Connect T-Con 2 in 1 Cable
*(3-4) If using a new T-con PCBA, attach EMI Gaskets and a EMI Tape.
3-1
3-2
3-1
3-3
T-Con 2 in 1 Cable
WHITE 3-4
BLACK
3-4 3-4
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(4-1) Place the ‘Plate, AIO Frame’ while inserting the ‘FFC Cable’ into the insertion area.
(4-2) Fasten the screw 7EA.
※ Especially, Fasten the designated screw after confirming that ‘Plate, AIO Frame’ is well settled on 2Step PEM-Nut.
* If using a new ‘Plate, AIO Frame’ or ‘T-con 2 in 1 Cable’ , follow the next page.
4-1
T-Con 2 in 1 Cable FFC Cable
Insertion Area Insulator
Plate, AIO Frame
4-2
4-2 4-2
4-2
4-2
11-1
4-2
4-2
4-2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
*(4-1) Place the ‘Plate, AIO Frame’ while inserting the ‘FFC Cable’ through the hole.
*(4-2) Fasten the screw 7EA.
*(4-3) Place the cable with 'MARKING' facing upward.
*(4-4) Attach two EMI tapes to overlap each other.
*(4-5) Attach a Insulation sheet.
MARKING
4-2 4-2
4-2
4-1
4-2 4-3
4-2
4-2
FFC Cable
4-2
4-5
4-4 4-4
11-1
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(5-1) Placing Sub PCBA and fasten the screw 4EA.
(5-2) Connect the FFC Cable.
(5-3) Attach the Thermal Pad to marking.
5-1
5-1 5-1
FFC Cable
5-1 5-1
5-2
Close the
Clip
FFC Cable
5-3
5-3
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(6-1) Place the Power PCBA and Attach the Thermal Pad 2EA.
(6-2) Cover the Power PCBA with ‘Plate, Power PCBA Shield’ and Fasten the screw 6EA
6-2 6-2 6-2
6-1 6-1
Power PCBA 6-2 6-2 6-2
Plate, Power PCBA Shield
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(7-1) Connect the Power Cord to Power PCBA and Fixing by fastening the screw 1EA.
(7-2) Connect the Cable Between Power PCBA(P201) and Sub PCBA(P10002) and Main PCBA(P1001)
(7-3) Connect the Cable(P251) to Power PCBA.
7-2
7-2
P1001
P10002
7-2
P201
7-3
7-1
P251
7-1
Power Cord
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(8-1) Place the ‘Cover Ass’y, AIO Top’ on the ‘Bottom Ass’y’
and Connect 4P Harness, 12P Harness while lifting up front area of ‘Cover Assy, AIO Top’
(8-2) Close the ‘Cover Ass’y, AIO Top’.
8-1
12P Harness Cover Ass’y, AIO Top
4P Harness Bottom Ass’y
8-2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(9-1) Slide the Cover Assy, AIO Top as shown below picture.
(9-2) Fasten the Screw 4EA.
9-1
Front View of Box Assy, AIO
Cover Assy, AIO Top
Rear View of Box Assy, AIO
NG OK
Cover Assy, AIO Bottom
9-2
Front View of Box Assy, AIO
9-2 9-2 9-2 9-2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(10-1) Connect Harness to Joystick PCBA
(10-2) Insert the ‘Cover Ass’y, AIO Rear’ and Fasten the screw 4EA.
10-1
Joystick PCBA Cover Assy, AIO Rear
Harness
10-2
: Main Management Latch Point 2EA)
※ Push the all Latch into AIO Box until connection sound(tick) is occurred
Especially, Latch Point 2EA
: Normal Latch Point 14EA)
10-2 10-2 10-2 10-2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(10-1) Connect Harness to Joystick PCBA
(10-2) Insert the ‘Cover Ass’y, AIO Rear’ and Fasten the screw 4EA.
: Main Management Latch Point 2EA)
: Normal Latch Point 14EA)
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(11-1) Put the AIO Bottom facing up and Unfasten the screw 13ea.
8-1
Bottom View of Box Assy, AIO
8-1 8-1
8-1 8-1 8-1
8-1 8-1
8-1
8-1 8-1 8-1 8-1 8-1
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
Assemble the Cover Ass'y, Glass
(12-1) Insert the ‘Cove Assy, Glass’ to Box Assy, AIO by sliding to the Rear direction.
(12-2) Fasten the screw 4ea.
12-1
Cover Assy, Glass
Box Assy, AIO
Rear direction Rear direction
12-2
O X
12-2 12-2 12-2 12-2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
Assemble the Cover Ass'y, Front Décor
(13-1) Hang the ‘Cover Ass’y, Front Décor’ by hooks on the upper side.
(13-2) Fix the ‘Cover Ass’y, Front Décor’ by pressing the Latch on the bottom side
Don’t push or touch with force the Grille area.
13-1 HOOK
13-2 LATCH
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide ※ Clean attachment area of Cover, Module and Glass with alcohol
before attaching double sided tapes.
Assemble the Module.
※ Rub the attachment area of double sided tape over 2 times after attaching it.
(14-1) Attach the Double-sided Tape MDS65698103 4EA
Especially, Rub the double sided tape(MDS65738356) to reveal BK Print color
(14-2) Attach the Double-sided Tape MDS65738356 2EA
When attaching the tape, be sure to attach to the black surface and not to the transparent surface.
*This step is unnecessary for new ‘Cover Ass’y, Glass’
14-1
PET Release Used for 14-1
14-1 14-1
Stick here
Double sided Tape
14-2
Double sided Tape
Used for 14-2
NG
Stick here
OK
Rub the double sided
PET Release tape(MDS65738356)
to reveal BK Print color.
14-2 14-2
< Status of Double Sided Tape attached on Glass>
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide Concept Image
Assemble the Module with the release Film(PET) remaining.
(15-1) Position the module by aligning A and B while pulling out the cable to the hole.
(15-2) Slide the Module downward and adjust the module to the center of the ‘Cover Ass’y, Glass’
15-1
A A
B B
Front View of
Cover Ass’y Glass Rear View of Module
Front View
Cable
B
A
15-2
Module
Front View
Cover Ass’y, Glass
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(16-1) Fasten the screws 2EA.
(16-2) Attach the ‘Cover, FPC Cable Outer’ to ‘Cover Ass’y, Glass’
(16-3) Remove the Release Film 6EA.
Cover Ass’y, Glass
Cover, FPC Cable Outer
Rear
View
16-1 16-1
16-2
16-3
Top side Corner
Front View Bottom side Corner
Release Film
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(16-4) Rub the metal part & panel around the double sided tape attached each point with fabrics or cleaner cloth
for 6 (or more) seconds over 3~4 times.
-. Remove excess moisture thoroughly before adhesion
-. Do not press strongly the panel
16-4
Front View
Double- sided Tape
on each corner
Rubbing Region
[Metal Part & Panel]
Rubbing Region
[Metal Part & Panel]
Double-
sided Tape
Panel Double-
sided Tape
Panel Cover,
Module
Cover,
Module
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(17-1) Attach the ‘Bracket, FPC Holder’ and ‘Bracket, FPC holder’ to Cable.
(17-2) Connect the Cable to T-con PCBA through the ‘Cove, Rear’ and fasten the screws 2EA.
17-1
Bracket, FPC Holder
Cable Bracket, FPC Protector
17-2
Rear Side
17-2 17-2
Cover, Rear
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Working Guide
(18-1) Attach the ‘Cover, Screw’ 6EA.
17-1
8-1 8-1 8-1 8-1
8-1 8-1
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
SET HANDLING GUIDE
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Installation Guide
(1) Hold the AIO Box by placing your hand in the gap on the back of the Bottom Packing.
(2) Supporter the side area of the head with your other hand, tilt it back, and lift the set out of the packing.
1 2
Back View
of the Set
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Installation Guide
(3) Insert FPC Holder Bracket with FPC Cable into the Connection Cable Jack of AIO Box Rear Cover.
3 Rear View
FPC Holder Bracket FPC Cable
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
OLED65G8(W8K) Installation Guide
(4) Fasten the screw 2EA on the FPC Holder Bracket to the AIO Box Rear Cover.
(5) Tilt the Set forward and Put the Set to the position you want in the same way as (1) & (2).
4 Rear View
4 4
※ CAUTION
Do not grab the Front Décor on the front of the Set. Do not press the Grille section (especially the voice output section) of the Front Décor.
Front Decor Grille
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
TROUBLE SHOOTING GUIDE
Copyright © 2018 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 No video/Normal audio 1
2 No video/No audio 2
3 A. Video error Picture broken/ Freezing 3
4 Color error 4
Vertical/Horizontal bar, residual image, light
5 5
spot, external device color error
6 No power 6
B. Power error Off when on, off while viewing, power auto
7 7-8A,8B
on/off
8 No audio/Normal video 9
C. Audio error
9 Wrecked audio/discontinuation/noise 10
10 Remote control checking 11
11 MR18 operating checking 12
D. Function error
12 Wifi operating checking 13
13 External device recognition error 14
14 E. Noise Circuit noise, mechanical noise 15
15 F. Exterior defect Exterior defect 16
First of all, Check whether there is SVC Bulletin in GSCS System for these model.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error A. Video error date
OLED TV symptom
No video/ Normal audio Page No 1/16
First of all, Check whether all of cables between B/D are inserted properly or not.
(Main B/D↔ Power B/D, Vx1 Cable, Speaker Cable, IR B/D Cable. etc)
☞A1 ☞A9
No video Normal Y Check Vx1 lock Y Check Power B/D Normal Y
Normal audio 0V Replace Main B/D
audio voltage (Main) voltage
20V, 12V etc.
N ☞A9 N N
Move to No Check Power B/D (Module) 24V, 12V output Repair Power B/D
video/No audio or parts
Normal Y
Replace Module
voltage
& T-CON B/D
N End
Replace Power
B/D or repair
parts
※Precaution
☞A4 (S/W version)
☞A2 (White Balance)
Always check & record S/W Version and White
Replace Main B/D Re-enter White Balance value
Balance value before replacing the Main B/D
1
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error A. Video error date
OLED TV symptom
No video/ No audio Page No 2/16
☞A9
Check various voltages Check and
Y
No Video/ of Power B/D (Main) Normal
replace
No audio (20V, 12V…) voltage?
Main B/D
N
End
Replace Power
B/D or repair parts
2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error A. Video error date
OLED TV symptom
Picture broken/ Freezing Page No 3/16
☞ A3 . By using Digital signal level meter
. By using Diagnostics menu on OSD
Check RF Signal level ( All Settings→ Channels → Channel Tuning → Manual Tuning → Check the Signal )
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
Y Check whether other equipments have problem or not.
Normal
(By connecting RF Cable at other equipment)
Signal?
→ DVD Player ,Set-Top-Box, Different maker TV etc`
N
☞ A4
Check RF Cable
Normal Y Check SVC N Check Y
Connection Close
1. Reconnection Picture? S/W Version Bulletin? Tuner soldering
2. Install Booster N
N Y
S/W Upgrade
N Contact with signal distributor
Normal
Picture? or broadcaster (Cable or Air)
Normal N
Y Picture? Replace
Main B/D
Y
Close
Close
3
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error A. Video error date
OLED TV symptom
Color error Page No 4/16
☞ A7
☞A19 ※ Check
and replace
Check color by Internal Color Y Link Cable Color Y Color Y
Replace Main B/D Replace Module & T-CON B/D
Pattern error? (Vx1) and error? error?
contact
N condition N N
Check error End
color at input
mode
Check
External device Y
External Input external
/Cable Replace Main B/D
error device and
normal
cable
N
Request repair
for External
device/Cable
N
Check external External device Y
HDMI
device and /Cable Replace Main B/D
error
cable normal
4
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error A. Video error date
OLED TV symptom Vertical / Horizontal bar, residual image,
light spot, external device color error Page No 5/16
Vertical/Horizontal bar, residual image, light spot
Replace
Module & T-CON B/D
☞A19 ☞ A7 N
Check external
Check and
Check color by Internal Screen Y device Y Screen N Screen
Normal? replace Link Replace Main B/D
Pattern normal? connection normal? normal?
Cable
condition
N N Y Y
Replace Main B/D or Request repair End End
Module & T-CON B/D for external
device
External device screen error-Color error
Check screen Connect other external
condition by input External device and cable. Screen N Replace
Check S/W Version Newest Y -External Input Check normal operation of
Input normal? Main B/D or
Version? -AV External Input(AV, Component)
error Module & T-
-Component by connecting Jig, pattern Y CON B/D
N -HDMI/DVI Generator ,Set-top Box etc.
Request repair for
S/W Upgrade external device
Y
Connect other external device
and cable.
HDMI/ Check normal operation of Screen N Replace
Normal N DVI External Input(HDMI/DVI) by normal? Main B/D or
screen? error connecting Jig, pattern Module & T-CON
Generator ,Set-top Box etc. B/D
Y
End
5
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error B. Power error date
OLED TV symptom
No power Page No 6/16
*When LED is Blinking orange light ☞A20
*When LED is Blinking blue light ☞A22
☞A8
DC Power on
Check Power LED Y Normal Y
by pressing Power Key End
Logo LED On? operation?
On Remote control
. Stand-By: Red light on
N N
. Operating: Turn Off
Check Power cord
was inserted properly
☞A9
Y Measure voltage of each output
Normal? of Power B/D
N
Insert Power Cord Normal Y
Replace Main B/D
properly voltage?
N
. Stand-By: Red light on
Replace Power B/D
. Operating: Turn Off
. Abnormal Case : LED blinking
-AM_MODE : orange light
-FAN or High Temperature : blue light
6
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error B. Power error date
OLED TV symptom
Off when on, off while viewing, power auto on/off Page No 7/16
Check outlet
☞A10 ☞8-A/B
N Y
Check A/C cord Check Power On/Off CPU
Error? Replace Main B/D Normal? End
Status Abnormal
N
Check for all 2- phase
power out Y Replace Power B/D
Abnormal
Fix A/C cord & Outlet
and check each 2 Check Cable
Y Replace
phase out Connection
AM_Mode Normal Module & T-CON B/D
Between Module
and AV Box
N
Insert Cable properly
INV_Error
☞A9
(If Power On/Off
Status is not Normal Y
Replace Main B/D
displayed) voltage?
Check Power B/D
voltage N
※ Caution
Check and fix exterior Replace Power B/D
of Power B/D Part
7
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error B. Power error date
OLED TV symptom
Off when on, off while viewing, power auto on/off Page No 8-A/16
Please refer to the all cases which can be displayed on power off mode.
Power Off list Explanation Action contents
Power off by CPU Abnormal status
1. Power off (Last Cold, Last Cool, Last Warm)
CONDITION : When power on and checking Power on Mode, abnormality appears.
POWER_OFF_BY_CPU_ABNORMAL Check & Change Main B/D
2. Power off in CPU Abnormal Case (Exception)
- Release Mode : Reboot
- Debug/Event Mode : Power off
POWER_OFF_BY_CPUCMD Power off by main SoC command. Check & Change Main B/D
Case1 : Pipe line overflow
POWER_OFF_BY_ABN Check & Change Main B/D
Case2 : reboot to suspend Fail
Power off when TV is not turned off during a certain time
RESULT : micom force to trigger TV power off.
POWER_OFF_BY_KEYTIMEOUT Check & Change Main B/D
CONDITION : When pressing power key while power on/off status, CPU does not response within 8
seconds or call the WDT timer API.
Power off by not detecting AC (abnormal case) Normal Case
POWER_OFF_BY_ACDET RESULT : micom triggers TV power off
CONDITION : Power detect port drops to low while power on status. Check & Change Main B/D
Power off by not unstable AC power detect.
RESULT : micom check the stable power.
POWER_OFF_BY_5VMNT Check & Change Main B/D
CONDITION : When AC on or DC on, stabilization check routine (Power Detect High Check) fail after
multi power on.
Power off when receiving no ack
Debug Status : Release Mode
POWER_OFF_BY_NO_POLLING RESULT : TV power off/on (Reboot) Check & Change Main B/D
CONDITION : There is no I2C response from CPU for 15 seconds.
==> if warm standby, power off occurs.
similar with POWER_OFF_BY_KEYTIMEOUT, but different concept.
RESULT : micom force to trigger TV power off within 4 seconds.
POWER_OFF_BY_REMOTE_KEY2 Check & Change Main B/D
CONDITION : When TV power on/off, CPU does not response within 4 seconds, and then pressing
power key.
Check & Change OLED Module
POWER_OFF_BY_INV_ERROR Power off by LCD Module inverter error (OLED)
& T-CON B/D
RESULT : Reboot Check & Change OLED Module
POWER_OFF_BY_ONRF_FAIL
CONDITION : OLED Module compensation is running but fails. & T-CON B/D
Check & Change OLED Module
POWER_OFF_BY_PNWASHFAIL Power off by panel noise wash function fail case. (OLED)
& T-CON B/D
Power off by resume fail when dc on case.
POWER_OFF_BY_RESUME_FAIL Check & Change Main B/D
If occur the resume fail, TV will be rebooted.
Check whether Module cable
POWER_OFF_BY_OLED_AM_MODE If the Module cable is disconnected, the micom is forced to power off TV. is connected
If still occurs , change
Module & T-CON B/D
8-A
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error B. Power error date
OLED TV symptom
Off when on, off while viewing, power auto on/off Page No 8-B/16
Please refer to the all cases which can be displayed on power off mode.
Power Off list Explanation Action contents
Power off by Micom Reset
POWER_OFF_BY_RESET It's not recommend. Please use POWER_OFF_BY_REQUEST_RESET.
RESULT : Reset the TV and init time data.
POWER_ON_BY_REMOTE_KEY Power on by remote Power Key.
POWER_OFF_BY_OFF_TIMER Power off by Off timer
POWER_OFF_BY_SLEEP_TIMER Power off by sleep timer
POWER_OFF_BY_INSTOP_KEY Power off by Instop Key
Power off by auto off function
POWER_OFF_BY_AUTO_OFF 1. When it lasts for 15 minutes that no signal and no remote key input.
2. When screen mute status lasts for 2 hours.
Power off by On timer
POWER_OFF_BY_ON_TIMER
Power off when no remote and local key input for 2 hours after power on by On timer.
POWER_OFF_BY_RS232C Power off by RS232C command
Power off by reserved recording Normal Case
POWER_OFF_BY_RESREC Power off automatically after recording finishes after TV turns on by reservation
recording from power off status.
POWER_OFF_BY_SWDOWN Power off by software download
POWER_OFF_BY_LOCAL_KEY Power off by local key
RESULT : Power off
POWER_OFF_BY_COMP_END
CONDITION : OLED threshold voltage degradation completes.
POWER_OFF_BY_HDMI_CEC Power off by HDMI CEC command
POWER_OFF_BY_PNWASHSTA
Power off for starting OLED panel noise function in warm state.
RT
POWER_OFF_BY_PNWASHDON
Power off by panel noise wash function complited. (OLED)
E
POWER_OFF_BY_COOLING Power off for cool down the OLED t-con. (OLED)
POWER_OFF_BY_EDID_WRITE Power off by EDID write done.
Off when on,
off while viewing,
8-B power auto on/off
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error C. Audio error date
OLED TV symptom
No audio/ Normal video Page No 9/16
☞A11 ☞A12
No audio
Check Sound N Check audio B+
Normal Y
menu > Normal 20V of Power B/D
Screen normal voltage
Sound Test
Y N
Check Sound out Setting Replace Power B/D and repair parts
Check N
Disconnection Replace Main B/D End
Speaker
or Sub B/D
disconnection
Y
Replace Speaker
9
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error C. Audio error date
OLED TV symptom
Wrecked audio/ discontinuation/noise Page No 10/16
Abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio
☞A12
Wrecked audio/
Check and replace
Discontinuation/ Normal N Check audio
speaker and
Noise for audio? B+ Voltage (20V)
connector
Check input all audio
signal Y
Signal Y
-RF
normal? Y
-External Input Normal
signal voltage?
N Wrecked audio/ End
Discontinuation/ N
Noise Replace Main B/D
for DTV or ATV
Replace Power B/D
(When RF signal is not
received) Replace Main B/D
Request repair to external Wrecked audio/ End
or Sub B/D
cable/ANT provider Discontinuation/
Noise only
for External Input
(In case of
External Input Connect and check Normal N
signal error) other external audio?
Check and fix device
external device Y
Check and fix external device
10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error D. Funtion error date
OLED TV symptom
Remote control checking Page No 11/16
Remote control(R/C) operating error
Replace
Main B/D
☞A13
☞A13 ☞A13
Check & Repair Y
Check R/C itself Normal Y Normal N Check B+ 3.5V Normal Y Check IR Normal
operating? Cable connection operating? Voltage? Signal?
Operation On Main B/D Output signal
Connector solder
N Y N N
Check R/C Operating Check & Replace ☞A9 Repair/Replace
Close
When turn off light Baterry of R/C IR B/D
in room Check 12V on Power B/D
If R/C operate, Normal Y
operating? Close
Explain the customer
cause is interference
from light in room. N Normal Y Replace Main B/D
Voltage?
Replace R/C
N
Replace Power B/D
11
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error D. Funtion error date
OLED TV symptom
MR18 operating checking Page No 12/16
MR18 (Magic Remocon) operating error
☞A4
Check the RF Receiver ver N Check MR18 Normal Y Press the Is show ok N Turn off/on the set
INSTART menu is “00.00”? itself Operation operating? wheel message? and press the
wheel
N Y
Y
☞A14
Check & Replace
Check & Repair Battery of MR18 Close
RF assy
connection
☞A4 Normal Y
operating? Close
RF Receiver ver N Is show ok N Press the back key
is “00.00”? Close
message? about 5sec
N
Y
Y Replace
MR18
Down load the Firmware
Close
* INSTART MENU12.RF
Remocon Test Receiver
•If you conduct the loop at 3times,
Firmware download
change the MR18.
12
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error D. Funtion error date
OLED TV symptom
Wifi operating checking Page No 13/16
Wifi operating error
☞A4 ☞A14
Check the Wi-Fi Mac value N Check the Wifi wafer Normal N Replace
INSTART menu is “NG”? Pin #1 Voltage? Main B/D
Y
☞A14 Y
Check & Repair Close
Wifi cable
connection
☞A4
Wi-Fi Mac value N
is “NG”? Close
Y
Change the Wifi
assy
13
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error D. Funtion error date
OLED TV symptom
External device recognition error Page No 14/16
External device recognition error
Check technical
Check Y
Signal information Technical N External Input
input Replace Main B/D
input? - Fix information information? Recognition error
signal
- S/W Version
N Y
HDMI/
Check and fix DVI, Optical
Fix in Replace Main B/D
external device/cable Recognition error
accordance
with technical
information
14
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error E. Noise date
OLED TV symptom
Circuit noise, mechanical noise Page No 15/16
Identify Check
Circuit
noise location of Replace PSU or Main B/D
noise
type noise
Moving SPK ※ Explain to customer Mechanical noise
noise is a natural phenomenon. When
customer does not agree, replace
Moving SPK with New one.
※ Explain ‘Generated Sound’ part of
Trouble shooting in the Owner’s Manual
to the customer if needed.
15
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process
Established
Error F. Exterior defect date
OLED TV symptom
Exterior defect Page No 16/16
Zoom part with Module
Replace Module
exterior damage damage
& T-CON B/D
Remote
control Replace remote control
damage
AV Box
Replace AV Box
damage
16
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Contents of Standard Repair Process Detail Technical Manual
No. Error symptom Content Page Remarks
1 Check Vx1 lock & BDP A1
A. Video error_ No video/Normal audio
2 Check White Balance value A2
TUNER input signal strength checking
3 A3
method
A. Video error_ video error /Video
4 lag/stop OLED TV Version checking method A4
5 Tuner Checking Part A5
A. Video error _Vertical/Horizontal bar,
6 Connection diagram A6
residual image, light spot
Check Link Cable (Vx1) reconnection
7 A7
A. Video error_ Color error condition
8 Adjustment OLED Test pattern A19
Examples of Symptom (image error) A-1/10
Examples of Symptom (image error) A-2/10
Examples of Symptom (Main) A-3/10
Examples of Symptom (Main) A-4/10
Examples of Symptom (Main) A-5/10
9 Defected Type caused by Cable/ Main /
Module / Power Examples of Symptom (Module) A-6/10
Examples of Symptom (Module) A-7/10
Examples of Symptom (Module) A-8/10
Examples of Symptom (Module) A-9/10
Exchange Power B/D (PSU) A-10/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Contents of Standard Repair Process Detail Technical Manual
No. Error symptom Content Page Remarks
10 Check front display LED A8
Check power input Voltage & ST-BY 3.5V A9
B. Power error_ No power Check front display LED(Blinking Orange
A20
11 Color LED)
Check front display LED(Blinking Blue Color
A21
LED)
B. Power error_Off when on, off while
12 POWER on/off Status checking method A10
viewing
Checking method in menu when there is no
13 A11
audio
C. Audio error_ No audio/Normal video
Voltage and speaker checking method when
14 A12
there is no audio
Remote control operation checking method A13
15 D. Function error
Motion remote/WIFI operation checking
A14
method
16 How to use the Service remote control A15-A17
E. Etc
17 Check items after Main B/D replacement A18
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom A. Video error_No video/Normal audio date
OLED TV
Content Check Vx1 lock & BDP Page No A1
R7624 : 0[V]
Check a voltage of R7624 after turn on the TV. Check a voltage of R7632 after turn on the TV.
If the voltage is low, Vx1 is locked.(OK) If the voltage is high(3.3V), BDP issue.(NG)
No video/ Normal audio
A1
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom A. Video error_No video/Normal audio date
OLED TV
Content Check White Balance value Page No A2
Entry method
1. Press the ADJ button on the remote control for adjustment.
2. Enter into White Balance of item 12.
3. After recording the R, G, B (GAIN, Cut) value of Color Temp
(Cool/Medium/Warm), re-enter the value after replacing the MAIN B/D.
No video/ Normal audio
A2
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom A. Video error_Video error, video lag/stop date
OLED TV
Content TUNER input signal strength checking method Page No A3
All Settings Programmes Programme Tuning & setting When the signal is strong, use the
Manual Tuning Antenna DTV attenuator (-10dB, -15dB, -20dB etc.)
Picture broken/ Freezing
A3
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom A. Video error_Video error, video lag/stop date
OLED TV
Content OLED TV Version checking method Page No A4
Checking method for remote control for adjustment
Version
No video/ Normal audio Picture broken/ Freezing
Press the IN-START with the remote
control for adjustment
MR18 operating checking Wifi operating checking
A4
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom
A. Video error_Video error, video lag/stop
OLED TV date
Content TUNER checking part Page No A5
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 MainB/D.
A5
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error A. Video error _Vertical/Horizontal bar, Established
OLED TV symptom residual image, light spot date
Content Connection diagram Page No A6
As the part connecting to the external input, check the
screen condition by signal
A6
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom A. Video error_Color error date
OLED TV
Content Check Link Cable (Vx1) reconnection condition Page No A7
Check the contact condition of the Link Cable, especially dust or mis-insertion.
Color Error
Vertical / Horizontal bar,
residual image, light spot,
A7 external device color error
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Appendix. Examples of Symptoms(Image error) Check for poor cable contact
Symptom
Item Cause Symptom Image
Name
Pin 단선
CABLE Color smear Poor broken pin of FFC cable
Color is Excessive due to FFC Cable
CABLE R Color Excessive
Contact.
screen is dark due to poor contact due to
CABLE Screen darkness disconnection of the FFC cable pin.
G color transient due to poor FFC cable
CABLE G Color Excessive connection
A - 1/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Appendix. Examples of Symptoms(Image error) Check for poor cable contact
Symptom
Item Cause Symptom Image
Name
CABLE Color spread LVDS cable connection problem
CABLE Color spread LVDS cable connection problem
CABLE Color spread LVDS cable connection problem
Due to foreign substance withi nLVDS cable
CABLE Screen stop PIN
A - 2/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Appendix. Examples of Symptoms(Main) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
Main Screen noise Bit noise from horizontal screen
Broken screen due to
Main Screen noise
Main IC problem
Main Dark picture Dark left-side screen
Top/bottom screen part
Main Broken picture
Picture problem due to tuner
Inner side quality problem
A - 3/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Appendix. Examples of Symptoms(Main) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
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
A - 4/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Appendix. Examples of Symptoms(Main) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
No problem at the initial stage,
Main Broken picture G-color spread after 10 minutes
Right-side
Main
Screen Right-side screen problem
problem
LG logo
Main Screen picture spread problem
Screen problem
No problem at the initial stage.
Right-side picture
Main During Heat run, right-side picture
problem
problem
A - 5/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Appendix. Examples of Symptoms(Module) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
Un-repairable Cases
Module Vertical bar
In this case please exchange the Module
Module image broken Source Driver issue
Module White dot White dot cause by panel issue
Module Line Dim Vertical Line cause by source drive IC
A - 6/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Appendix. Examples of Symptoms(Module) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
Module Burnt Module burnt
Module Horizon line Module has damaged
Module has damaged
Module Line Defect
Un-repairable Cases
Module Press damage
In this case please exchange the Module
A - 7/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Appendix. Examples of Symptoms(Module) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
Module Vertical bar Vertical Bar cause by source drive IC
Vertical Noise Un-repairable Cases
Module Brightness
In this case please exchange the Module
difference
Module Green light Compensation error when Power On/off
Color difference between screen cause by
Module Color difference compensation error
A - 8/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Appendix. Examples of Symptoms(Module) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
Module has damaged
Module No image
(Can’t fix it)
Burnt
Module Burnt
(Can’t fix it)
Screen Mura
Module Mura
(Can’t fix it)
A - 9/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Appendix : Exchange Power B/D (PSU)
No Light No picture/Sound Ok
A – 10/10
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom B. Power error _No power date
OLED TV
Content Check front display LED Page No A8
ST-BY condition (RED Light) : On or Off
Power ON condition: Turn Off
No power
A8
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom
B. Power error _No power
OLED TV date
Content Check power input Voltage & ST-BY 3.5V Page No A9
Check the DC 12VT line for ST-BY Voltage Power To
(ST-BY : 7.8V, Normal : 12V) Main
P251
P201
Power To
Module
No video/ Normal audio No video/ No audio No power Off when on, Remote control
off while viewing & Local switch checking
A9 power auto on/off
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error
symptom B. Power error _Off when on, off whiling viewing Established
date
OLED TV
Content POWER OFF MODE checking method Page No A10
Entry method
1. Press the IN-START button of the remote control for adjustment
2. Check the entry into adjustment item 3 (Power On/Off Status)
Off when on,
off while viewing,
A10 power auto on/off
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom C. Audio error_No audio/Normal video
OLED TV date
Content Checking method in menu when there is no audio Page No A11
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 Internal TV Speaker
A11 No audio/ Normal video
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom C. Audio error_No audio/Normal video date
OLED TV
Content Voltage and speaker checking method A12
Page No
when there is no audio
Speaker Wafer Speaker Cable
1 SPK_R-_FT 2 SPK_R+_FT
3 SPK_L-_FT 4 SPK_L+_FT
P201
5 SPK_R-_CT 6 SPK_R+_CT
7 SPK_L-_CT 8 SPK_L+_CT
9 SPK_R-_TW 10 SPK_R+_TW
11 SPK_L-_TW 12 SPK_L+_TW
Checking order when there is no audio
Check the contact condition of or 20V connector of Sub B/D
Measure the 20V input voltage supplied from Power B/D
(If there is no input voltage, remove and check the connector) Wrecked audio/
discontinuation/noise
Connect the tester to the speaker terminal and if you hear the “Chik Chik” sound when you touch
the GND and output terminal, the speaker is normal.
A12 No audio/ Normal video
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom D. Function error date
OLED TV
Content Remote control operation checking method Page No A13
① IR & EYE Sensor 18Pin Main
1 GND 2 KEY1
3 KEY2 4 GND
③ 5 NC 6 LED_Blue
7 NC 8 3.5V_ST
9 GND 10 LED_Red
11 LED_Green 12 GND
13 SCL 14 SDA
15 GND 16 IR
17 NC 18 NC
②
Eye LED IR
Check IR cable condition between IR & Main B/D.
Check the st-by 3.5V on the terminal.
Remote control
& Local switch checking
A13
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom D. Function error date
OLED TV
Content Motion remote/WIFI operation checking method Page No A14
Wifi & BT Front
14Pin
1 3.5V_WIFI
2 WIFI_DM
3 WIFI_DP
4 GND
5 WOL/WIFI_POWER_ON
Wifi & BT Rear 6 3.5V_WIFI
7 COBO_RESET
8 GND
9 BT_WAKEUP_DEVICE
10 BT_WAKEUP_HOST
11 GND
12 NC
13 NC
14 NC
Check WIFI Combo cable condition between WIFI Combo Assy & Main B/D.
Check the 3.5V_WIFI on the terminal 1 & 6
MR18 operating checking Wifi operating checking
A14
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom E. ETC date
OLED TV
Content How to use the Service remote control Page No A15
How to access the remote control
0 4 1 3
0 4 1 3
A15
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom E. ETC date
OLED TV
Content How to use the Service remote control Page No A16
Remote control part definition
POWER Power On/Off
[ETC] Each time pressing the KEY button, Mode gets changed to ETC and P-ONLY each time
ETC (Added Function) All KEY function [PIP PR-][PIP PR+][SWAP]
[PIP INPUT][DVI] KEY Function
Changed to factory mode
P-ONLY (Added
Function)
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
Changes in the order of Bright Picture=>Easy Picture=>Cinema=>Spots=>Game=>
PSM
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
Access to the Simplink-connected device
Function)
Digital EYE function ON/OFF
EYE
For some Model, access to the Test Pattern
TILT Used for screen tilting change (Access to the old PDP control mode)
A16
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom E. ETC date
OLED TV
Content How to use the Service remote control Page No A17
B-TOOTH
Connected to Blue-Tooth
(Added function)
Model Nam ex) 42PG60D-NA Current Model Name S/W Version ex)
IN-START V03.11.0 Current S/W version
MICOM Version ex) V3.05.0 current Mi-Com version UTT ex) User TV total usage time
POWER OFF STATUS ex) Shows power-off status
ADJ
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
Moves forward/backward of recorded contents
function)
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
Connects to HDMI 1,2,3,4
(Add function)
DVI (Add function) Connects to DVI
A17
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom E. ETC date
OLED TV
Content Check items after Main B/D replacement Page No A18
Check items afer Main B/D(Model Number D/L, White Balance)
Press the Service remote control instart Key.
No.7 Select Model Number D/L
- Key in the model name and serial number
after checking the ID label on the back cover.
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 B/D
replacement.
A14 After replacing the main B/D, key in the
recorded value.
A18
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom
A. Video error_Color error
OLED TV date
Content Adjustment OLED Test pattern Page No A19
1
2
1st 2nd 3rd 4th
5th 6th 7th 8th
9th 10th 11th
Press the P-ONLY HDMI HOT CH + or -
Color Error
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!) Vertical / Horizontal bar,
residual image, light spot,
A19 external device color error
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom
B. Power error_ No power
OLED TV date
Content Check front display LED(Blinking Orange Color LED) Page No A20
AM_MODE(Connection Error) Alarm – Blinking Orange Color LED
Checking order
1. Check LED Color Orange
2. Unplug the power cord
3. Reconnect Cable to AV Box(or Extension Cable)
4. Plug the power cord No power
A20
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Only for training and service purposes.
Standard Repair Process Detail Technical Manual
Error Established
symptom
B. Power error_ No power
OLED TV date
Content Check front display LED(Blinking Blue Color LED) Page No A21
FAN or Overheat mode Alarm – Blinking Blue Color LED
2-1 Poweronly
①
2-2 Instart >13.OLED
Temp.
Sensor
1st FAN 2nd FAN
Checking order
1. Check LED color Blue
2. Check FAN Stauts (Poweronly mode or Instart > OLED)
3. Replace FAN or Temperature Sensor.
A21 No power
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Smart JIG Power Diagnosis
Muitl Gender Guide
(P/N : RAD32507801) (P/N : RAD33187801)
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Power Board Muitl Gender JIG Diagram (P/N: RAD33187801)
15Y 16Y 15Y
(LF/UF Series) (OLED B6) (OLED)
28Pin 24Pin 24Pin 24Pin NC
18 Marking check 24Pin
18Pin 16Y
New JIG (OLED)
24Pin
13Y/14Y 28Pin
No Marking
OLD JIG
17/18Y
W7 17Y/18Y
B8 (OLED)
24Pin 12Y C8
E8 24Pin
18Y
G8
32LK61/32LK62
W8
43/49LK61
18Y
18Y
UK63/UK64
SK80/UK89
UK65/UK7050
SK85/SK96
SK95/SK99 16Y/17Y/18Y
18Pin (UH/UJ/UK
18Y SK)
24 Marking Check 28Pin UK74
28Pin 12Pin 12Pin 28Pin
UK75
Cable Connection UK78
Includes 49UJ63 SK79
17Y/18Y 16/18Y 16Y/17Y/18Y 16Y/17Y 16Y
(SJ/UJ/UK/SK) (UH/UK) (LH/LJ/LK) (UH/SJ) (UH)
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Power Board Muitl Gender JIG Diagnostic model List
Existing 12Y, 13Y, 14Y, 15Y LED models included
15Y, 16Y, 17Y/18Y OLED, 16/17/18 Y LED model Power diagnosis function newly added
<15Y/16Y/17Y/18Y OLED Model, 16Y/17Y/18Y LED Model>
Year Product Model
EG92/EG93/EG94
‘15 OLED EG96
EF95
B6, C6
OLED
E6, G6
UH95/UH96
‘16 UH85/UH93
UH77/UH87
LED
UH75/UH76
UH65/UH68
LH68, LH66, LH60,LH54
B7, C7
‘17 OLED E7, G7
W7
SJ95/UJ98
SJ85/UJ94
SJ80, UJ77
UJ75/UJ78
’17 LED
UJ65/UJ68
UJ63/UJ67
LJ61/LJ68
LJ55/LJ58
SK80/SK85/SK95
UK78/UK75/SK79
‘18 LED
UK63/UK64/UK65/UK7050
32LK61/62, 43/49LK61
B8, C8, E8
‘18 OLED
G8, W8
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Power Board Muitl Gender How to Connect
1
▶ Power Board Muitl Gender JIG
2
“A: 2013 LCD POWER”
2014
▶ Connect the Muiti Gender to the connector (black)
as shown in picture 2 of the Smart JIG.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
Smart Jig Voltage Setting
1 2
▶ Switch the product S/W in JIG to LCD.
▶ LCD MODEL Check the power voltage
▶ Check power board voltage. and 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
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`15Y OLED(EG96,EF95,EG92,EG93,EG94) Power Board Diagnostic method (1)
1 2
▶ Switch the product S/W in JIG to LCD.
▶ LCD MODEL Check the power voltage
and switch(24V) to the correct voltage.
▶ Check power board voltage. ▶ Fix the LCD MODEL switch to 24V.(Smart JIG)
3 4
▶ Disconnect the Main Board 24Pin Power Cable connector. ▶ Connect the 24Pin Power Cable connector to the Muitl
Gender JIG 24Pin connector
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`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.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`16Y OLED(B6) Power Board Diagnostic method
1 2
▶ Switch the LCD MODEL S/W to 24V by checking
the power voltage.
▶ Fix the LCD MODEL switch to 24V.(Smart JIG)
▶ Connect the 24Pin Power Cable connector
to the Multi gender JIG 24Pin connector.
3
▶ 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.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`16Y OLED(C6) Power Board Diagnostic method
1 2
▶ Check power board voltage. ▶ Disconnect the Main Board 24Pin Power Cable connector.
▶ Smart JIG: Fix the LCD MODEL switch to 24V.(Smart JIG)
3 4
▶ Connect the 24Pin Power Cable connector ▶ When the OK LED(24V,12V) turns on, Power Board is normal.
to the Muitl Gender JIG 24Pin connector
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`16Y OLED(E6) Power Board Diagnostic method
1 2
▶ Check power board voltage. ▶ Disconnect the Main Board 24Pin Power Cable connector.
▶ Fix the LCD MODEL switch to 24V.(Smart JIG)
3 4
▶ Connect the 24Pin Power Cable connector ▶ When the OK LED(24V,12V) turns on, Power Board is normal.
to the Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board
can be judged as defective.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`16Y OLED(G6) Power Board Diagnostic method
1 2
▶ Check power board voltage. ▶ Disconnect the Main Board 24Pin Power Cable connector.
▶ Fix the LCD MODEL switch to 24V.(Smart JIG)
3 4
▶ Connect the 24Pin Power Cable connector ▶ When the OK LED(24V,12V) turns on, Power Board is normal.
to the Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board
can be judged as defective.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`17Y OLED(B7/C7/E7/G7) Power Board Diagnostic method
1 2
▶ Disconnect the Main Board 28Pin Power Cable connector. ▶ Connect the 28Pin Power Cable connector
to the Muitl Gender JIG 28Pin connector
3 4
▶ Switch the LCD MODEL S/W to 20V by checking ▶ When the OK LED(24V,12V) turns on, Power Board is normal.
the power voltage.
▶ When the NG LED turns on, the Power Board
▶ Fix the LCD MODEL switch to 20V.(Smart JIG)
can be judged as defective.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`17Y OLED(W7) Power Board Diagnostic method
1 2
▶ Disconnect the Main Board 24Pin Power Cable connector. ▶ Connect the 24Pin Power Cable connector
to the Muitl Gender JIG 28Pin connector
3 4
▶ Switch the LCD MODEL S/W to 20V by checking ▶ When the OK LED(24V,12V) turns on, Power Board is normal.
the power voltage.
▶ When the NG LED turns on, the Power Board
▶ Fix the LCD MODEL switch to 20V.(Smart JIG)
can be judged as defective.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`16Y/`17Y LED 18Pin Power Board Diagnostic method
1 2
▶ Check power board voltage.
▶ Disconnect the Main Board 18Pin Power Cable connector.
▶ Fix the LCD MODEL switch to 24V.(Smart JIG)
3 4
▶ Connect the 18Pin Power Cable connector ▶ When the OK LED(24V,12V) turns on, Power Board is normal.
to the Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board
can be judged as defective.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`16Y LED(UH95/UH96) Power Board Diagnostic method
1 2
▶ Check power board voltage. ▶ Disconnect the Main Board 28Pin Power Cable connector.
▶ Fix the LCD MODEL switch to 24V.(Smart JIG)
3 4
▶ Connect the 28Pin Power Cable connector ▶ When the OK(24V,12V) LED turns on, Power Board is normal.
to the Muitl Gender JIG 28Pin connector ▶ When the NG LED turns on, the Power Board
can be judged as defective.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`16Y/`17Y LED(UH85/UH93) Power Board Diagnostic method
1 2
▶ Check power board voltage. ▶ Disconnect the Main Board 28Pin Power Cable connector.
▶ Fix the LCD MODEL switch to 24V.(Smart JIG)
3 4
▶ Connect the 28Pin Power Cable connector ▶ When the OK LED(24V,12V) turns on, Power Board is normal.
to the Muitl Gender JIG 28Pin connector ▶ When the NG LED turns on, the Power Board
can be judged as defective.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`16Y/`17Y LED 12Pin Power Board Diagnostic method
1 2
▶ Check power board voltage.
▶ Disconnect the Main Board 12Pin Power Cable connector.
▶ Fix the LCD MODEL switch to 24V.(Smart JIG)
3 4
▶ Connect the 12Pin Power Cable connector ▶ When the OK LED(24V,12V) turns on, Power Board is normal.
to the Muitl Gender JIG 12Pin connector ▶ When the NG LED turns on, the Power Board
can be judged as defective.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`16Y LED 12Pin Power Board Diagnostic method
1 2
▶ Check power board voltage.
▶ Disconnect the Main Board 12Pin Power Cable connector.
▶ Fix the LCD MODEL switch to 24V.(Smart JIG)
3 4
▶ Connect the 12Pin Power Cable connector ▶ When the OK LED(24V,12V) turns on, Power Board is normal.
to the Muitl Gender JIG 24Pin connector ▶ When the NG LED turns on, the Power Board
can be judged as defective.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
`17Y LED 28Pin Power Board Diagnostic method
1 2
▶ Check power board voltage.
▶ Disconnect the Main Board 28Pin Power Cable connector.
▶ Fix the LCD MODEL switch to 20V.(Smart JIG)
3 4
▶ Connect the 28Pin Power Cable connector ▶ When the OK LED(24V,12V) turns on, Power Board is normal.
to the Muitl Gender JIG 28Pin connector ▶ When the NG LED turns on, the Power Board
can be judged as defective.
Copyright © 2018 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.
