Internal Use Only
OLED TV
SERVICE MANUAL
CHASSIS : EA71G
MODEL : OLED65W7P OLED65W7P-U
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL69862001 (1701-REV00)
CONTENTS
CONTENTS ............................................................................................... 2
SAFETY PRECAUTIONS ......................................................................... 3
SERVICING PRECAUTIONS .................................................................... 4
SPECIFICATION........................................................................................ 6
SOFTWARE UPDATE ............................................................................... 9
BLOCK DIAGRAM .................................................................................. 10
EXPLODED VIEW ................................................................................... 11
DISASSEMBLY GUIDE ........................................................... APPENDIX
TROUBLE SHOOTING GUIDE ................................................. APPENDIX
Copyright © LG Electronics. Inc. All rights reserved. -2- LGE Internal Use Only
Only for training and service purposes
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
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.
Copyright © LG Electronics. Inc. All rights reserved. -3- LGE Internal Use Only
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 ES
on page 3 of this publication, always follow the safety precautions. devices.
Remember: Safety First. 4. Use only an anti-static type solder removal device. Some solder
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 mod- 6. Do not remove a replacement ES device from its protective
ule or any other receiver assembly. package until immediately before you are ready to install it.
b. Disconnecting or reconnecting any receiver electrical plug or (Most replacement ES devices are packaged with leads electri-
other electrical connection. cally 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 material
installation of electrolytic capacitors may result in an explo- to the chassis or circuit assembly into which the device will be
sion hazard. installed.
2. Test high voltage only by measuring it with an appropriate CAUTION: Be sure no power is applied to the chassis or circuit,
high voltage meter or other voltage measuring device (DVM, 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 appropriate
(by volume) isopropyl alcohol (90 % - 99 % strength) tip size and shape that will maintain tip temperature within the
CAUTION: This is a flammable mixture. range or 500 °F to 600 °F.
Unless specified otherwise in this service manual, lubrication of 2. Use an appropriate gauge of RMA resin-core solder composed
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 are Do not use freon-propelled spray-on cleaners.
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 against
ily by static electricity. Such components commonly are called 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 discharging
wrist strap device, which should be removed to prevent poten-
tial shock reasons prior to applying power to the unit under test.
Copyright © LG Electronics. Inc. All rights reserved. -4- LGE Internal Use Only
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 whenever
gently prying up on the lead with the soldering iron tip as the 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 remaining good copper pattern. Solder the overlapped area and clip off
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.
Copyright © LG Electronics. Inc. All rights reserved. -5- LGE Internal Use Only
Only for training and service purposes
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
1. Application range 3. Test method
This spec sheet is applied to the OLED TV used EA71G (1) Performance: LGE TV test method followed
chassis (2) Demanded other specification
- Safety : UL, CSA, CE, IEC specification
- EMC : FCC, ICES, CE, IEC specification
- Wireless : Wireless HD Specification (Option)
2. Test condition
Each part is tested as below without special notice.
(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 120V, 50/60Hz, 5.2A)
* 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 Specification
No Item Specification Remark
1 Market North America
2 Broadcasting system 64 & 256 QAM /ATSC-NTSC-M
3 Available Channel VHF : 2 ~ 13
UHF : 14 ~ 69
DTV : 2 ~ 69
CATV : 1 ~ 135
CADTV : 1 ~ 135
DTV(UHD) : 2 ~ 69
4 Input Voltage AC 120V, 50/60Hz, 5.2A
Copyright © LG Electronics. Inc. All rights reserved. -6- LGE Internal Use Only
Only for training and service purposes
5. External Input Support Format
5.1. HDMI Input (PC)
No. Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed Remarks
1 640*350 31.468 70.09 25.17 EGA
2 720*400 31.469 70.08 28.32 DOS
3 640*480 31.469 59.94 25.17 VESA(VGA)
4 800*600 37.879 60.31 40 VESA(SVGA)
5 1024*768 48.363 60.00 65 VESA(XGA)
6 1360*768 47.712 60.015 84.75 VESA(WXGA)
7 1152*864 54.348 60.053 80 VESA Support to HDMI-PC
8 1280*1024 63.981 60.020 109.00 SXGA
9 1920*1080 67.5 60 158.40 WUXGA
(Reduced Blanking)
10 3840*2160 54 24.00 297.00 UDTV 2160P
11 3840*2160 56.25 25.00 297.00 UDTV 2160P
12 3840*2160 67.5 30.00 297.00 UDTV 2160P
13 4096*2160 53.95 23.97 296.703 UDTV 2160P
14 4096*2160 54 24 297 UDTV 2160P
Copyright © LG Electronics. Inc. All rights reserved. -7- LGE Internal Use Only
Only for training and service purposes
5.2. HDMI Input (DTV)
Pixel
No Resolution H-freq(kHz) V-freq.(Hz) Proposed Remark
clock(MHz)
1 640*480 31.469 59.94 25.125 SDTV 480P
2 640*480 31.5 60.00 25.125 SDTV 480P
3 720*480 15.73 59.94 13.500 SDTV, DVD 480I(525I) Spec. out but display
4 720*480 15.75 60.00 13.514 SDTV, DVD 480I(525I)
5 720*576 15.625 50.00 13.500 SDTV, DVD 576I(625I) 50Hz
6 720*480 31.47 59.94 27 SDTV 480P
7 720*480 31.5 60.00 27.027 SDTV 480P
8 720*576 31.25 50.00 27 SDTV 576P
9 1280*720 44.96 59.94 74.176 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 28.125 50.00 74.25 HDTV 1080I
13 1920*1080 33.72 59.94 74.176 HDTV 1080I
14 1920*1080 33.75 60.00 74.25 HDTV 1080I
15 1920*1080 26.97 23.976 63.296 HDTV 1080P
16 1920*1080 27.00 24.000 63.36 HDTV 1080P
17 1920*1080 33.71 29.97 79.120 HDTV 1080P
18 1920*1080 33.75 30.00 79.20 HDTV 1080P
19 1920*1080 56.25 50.00 148.5 HDTV 1080P
20 1920*1080 67.432 59.94 148.350 HDTV 1080P
21 1920*1080 67.5 60.00 148.50 HDTV 1080P
22 3840*2160 53.95 23.98 296.703 UDTV 2160P
23 3840*2160 54 24.00 297.00 UDTV 2160P
24 3840*2160 56.25 25.00 297.00 UDTV 2160P
25 3840*2160 61.43 29.97 296.703 UDTV 2160P
26 3840*2160 67.5 30.00 297.00 UDTV 2160P
27 3840*2160 112.5 50.00 594 UDTV 2160P When HDMI1,2,3,4
UHD DEEP COLOUR ON
28 3840*2160 134.86 59.94 593.407 UDTV 2160P When HDMI1,2,3,4
UHD DEEP COLOUR ON
29 3840*2160 135 60.00 594 UDTV 2160P When HDMI1,2,3,4
UHD DEEP COLOUR ON
30 4096*2160 53.95 23.98 296.703 UDTV 2160P
31 4096*2160 54 24.00 297 UDTV 2160P
32 4096*2160 56.25 25.00 297 UDTV 2160P
33 4096*2160 61.43 29.97 296.703 UDTV 2160P
34 4096*2160 67.5 30.00 297 UDTV 2160P
35 4096*2160 112.5 50.00 594 UDTV 2160P When HDMI1,2,3,4
UHD DEEP COLOUR ON
36 4096*2160 134.86 59.94 593.407 UDTV 2160P When HDMI1,2,3,4
UHD DEEP COLOUR ON
37 4096*2160 135 60.00 594 UDTV 2160P When HDMI1,2,3,4
UHD DEEP COLOUR ON
Copyright © LG Electronics. Inc. All rights reserved. -8- LGE Internal Use Only
Only for training and service purposes
SOFTWARE UPDATE
1. USB 2. NSU
(1) Insert the USB memory Stick to the USB port (This Function is needed to connect to the internet)
(2) Automatically detect the SW Version and show the below
message (1) Menu -> All Settings -> General -> About This TV
(3) Click [YES]: initiate the download and install of the update.
(2) C lick [CHEK FOR UPDATES] : system check newest
version
(4) C lick [Check Now]: move to “About This TV” page for
update
(5) TV is updating
(3) Click [DOWNLOAD AND INSTALL]
(4) TV is updating
(6) After finished the update, below Pop-up appear
(5) 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
(6) Turn OFF the TV and On. Check the updated SW Version
and Tool Option
Copyright © LG Electronics. Inc. All rights reserved. -9- LGE Internal Use Only
Only for training and service purposes
Copyright ©
X_TAL 24MHz DDR3 1066 X 8
\(Main Clock) (4Gb X 4EA)
Tuner
DDR3 1066 X 16
R Tuner : I2C 5 IF (+/-) LM GM (4Gb X 2EA)
Analog Demod
E
D-Demod : I2C 3 P_TS
A Digital Demod
R SYSTEM EEPROM
Only for training and service purposes
(H) CVBS/SIF I2C 4 (256Kb)
R USB1 (3.0) OCP 1.6A
E eMMC
A USB2 (2.0) OCP 1.5A USB (8GB)
R
Main
USB3 (2.0) OCP 1.5A SOC
LG Electronics. Inc. All rights reserved.
51P
VBY1 41P
HDMI1 (2.0)
R HDMI2 (2.0)
E (ARC)
HDMI
A HDMI3 (2.0)
R Sub Board
- 10 -
HDMI4 (2.0)
R UART RX/TX RS232
E LAN
LAN ETHERNET CVBS/L/R
A PHY AV AUD_LRCH Audio 2 AMP
R X_TAL 0X56, 0X54
Block Diagram
YPbPr COMP
25MHz
BLUTOOTH Ext IR Ext IR
WIFI USB_WIFI-BT AUD_LRCH_TW Audio 1AMP
AMP 0X54
SUB LED H/P
ASSY
IR I2S
KEY
SPDIF OUT OPTIC
IR KEY
I2C 0
Clock I2C 4
Sub Micom I2C 1
Frequency Micom for motor PWM
20MHz controll
PWM FAN1 Motor 1, 2, 3, 4
(FAN2)
2133Mbps (1066Mhz)
LGE Internal Use Only
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.
400
420
120
540
550
850
530
820
840
410
121
LV2
LV1
700
AB3
AW4
AB2
AW3
200
AB1
AR2
AB4
AR1
Copyright © LG Electronics. Inc. All rights reserved. - 11 - LGE Internal Use Only
Only for training and service purposes
DISASSEMBLY GUIDE
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
※ Follow the Manual (1-1, 1-2, 2-1, 2-2, ... )
(1-1) Put the a soft cloth and set AV BOX as indicated below picture
(1-2) Stand set as indicated below picture
1-1
AV BOX
1-2
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(2-1) Disassemble screw 6ea. ( Top Cover Ass’y – Middle Bottom Ass’y – Rear Cover Ass’y screw) Refer Picture.
(2-2) Disassemble screw 6ea. (Middle Bottom Ass’y – Rear Cover Ass’y screw) Refer Picture.
Top View 2-1 2-1 2-1 2-1 2-1
2-1
2-2 2-2 2-2 2-2 2-2 2-2
Front View
2-1 2-2
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(3-1) Disassemble Cover, Bottom Rear that is assembled with latch 8ea
Push the Cover, Bottom Rear both side and pull as indicated below picture
Cover, Bottom Rear
3-1 3-1 3-1 3-1
3-1 3-1 3-1 3-1
툭 툭
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(4-1) Lift the Ass’y, Cover Top as indicated below picture.
(4-2, 4-3) Pull the Ass’y, Cover Top and Disassemble.
If you can’t disassemble, you have to move from side to side. Then you can disassemble more easily .
(4-4) Before open the Ass’y, Cover Top , you have to disassemble cable 2ea.
Ass’y, CoverTop
After disassemble
Cover, Bottom Rear
4-1 4-2 4-3 4-4
4-4
4-4
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(5-1) Disassemble screw 4ea that is fixing of Speaker, R
(5-2) Disassemble screw 4ea that is fixing of Speaker, L
Speaker, R
Speaker, L
5-1 5-2
5-2 5-2
5-1 5-1
5-1
5-2
5-1
5-2
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(6-1) Disassemble Screw 4EA and cable 4ea.
(6-2) Disassemble Sub Main.
Sub Main
6-1 6-2
6-1 6-1 6-1 6-1
Gap Pad
6-1
6-1
6-1 6-1
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(7-1) Disassemble cable from holder that is assembled Power Shield right side.
(7-2) Disassemble Power Cable 2ea.
Power
7-1 7-2
7-1 7-2
7-3
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(8-1) ~ (8-2) Disassemble Cable of Power Cord.
(8-3) Disassemble Power with holding end of the power PCB.
(When to do this, attend electronic shock).
Power Cord
8-1 8-2 8-3
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(9-1) ~ (9-4) Disassemble screw 8ea that is Power Bottom Shield fixing.
* (9-2), (9-3) Pull the insulation sheet and Disassemble screw 1ea, Refer the below picture.
(9-4) Pull the Gap Pad and Disassemble screw 1ea, Refer the below picture.
9-1 9-3 9-1 9-1
Power Bottom Shield
9-2 9-4
9-1
9-1
9-2 9-3 9-4
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(10-1) Pull the insulation sheet on Power Shield.
(10-2) Disassemble Cable 2ea.
Power Bottom Shield
10-1 10-1
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(11-1) Disassemble EMI Tape as indicated below picture.
(11-2) Disassemble Cable 2ea from Main PCB to T-Con PCB.
(11-3) Disassemble Cable 2ea.
After disassembled
Power Bottom Shield T-Con PCB Main PCB
11-1
11-3
11-2
11-1
11-1
11-2 11-3
11-2
11-3
11-2
11-3
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(12-1) Disassemble screw 6ea to T-Con fixing .
(12-2) Disassemble screw 4ea to Main PCB fixing.
(12-3) Disassemble T-Con and Main PCB.
After disassembled T-Con PCB Main PCB
Power Bottom Shield
12-1 12-2
12-1 12-1 12-1 12-2 12-2
12-2
12-1 12-2
12-1 12-1
12-3
Gap Pad
Gap Pad
Gap Pad
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(13-1) Disassemble cable from holder.
and Disassemble cable 2ea to fixing LED Lighting.
Middle
After Disassemble LED Lighting
T-Con/Main PCB
13-1
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(14-1, 14-2)Push the latch and pull the end of the right side of LED Lighting to disassemble LED Lighting.
(Latch is 4ea) Refer the below picture.
LED Lighting
14-1 14-1 14-1
14-1
Disassemble
Direction
14-1
14-2
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
OLED65W7 Disassembly Guide
(15-1) Disassemble screw 1ea to fixing Power Cord.
Power Cord
15-1
15-1
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OLED65W7 Disassembly Guide
(16-1) Disassemble screw 9ea to fixing Middle cabinet.
(16-2) Disassemble EMI Tape 2ea from Middle to Bottom Plate.
(16-3) Disassemble Middle cabinet.
16-1
16-1
16-1 16-1 16-1
After 16-1 16-1
disassemble 16-1
Bottom Plate
LED Lighting,
Power Cord
16-1
16-1
16-2
16-3
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OLED65W7 Disassembly Guide
(17-1) Disassemble screw 1ea to fixing Joystick and disassemble Cable.
(17-2) Disassemble screw 1ea and indicator.
(17-3) Disassemble cable to connecting Wifi from Cover, Bottom and disassemble Wifi bracket.
Indicator
After Cover, Bottom
disassemble
Middle Joystick Wifi
17-1 17-2
17-2
17-1
17-3
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OLED65W7 Disassembly Guide
(18-1) Disassemble screw 4ea to fixing Bottom Plate and disassemble Bottom Plate.
(18-2) All Disassembly is done.
After
disassemble
Joystick
Indicator
Wifi
18-1
18-1 18-1
18-1 18-1
18-2
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TROUBLE SHOOTING GUIDE
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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,
5 5
light spot, external device color error
6 No power 6
B. Power error Off when on, off while viewing, power
7 7
auto on/off
8 No audio/Normal video 8
C. Audio error
9 Wrecked audio/discontinuation/noise 9
10 Remote control & Local switch checking 10
11 MR15R operating checking 11
D. Function error
12 Wifi operating checking 12
13 External device recognition error 13
14 E. Noise Circuit noise, mechanical noise 14
15 F. Exterior error Exterior defect 15
First of all, Check whether there is SVC Bulletin in GSCS System for these model.
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
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Standard Repair Process
Established
Error A. Video error date
OLED TV symptom
No video/ Normal audio Revised date 1/16
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,,,)
☞A1 ☞A9
No video Normal Y Check Back Light Y Check Power Normal Y Replace T-con/Main
Normal audio On
audio On with naked eye Board voltage Board or module
20V, 12V, 3.5V
etc.
N N N
Move to No
☞A9 Check Power Board 24V output Repair Power
video/No audio Board or parts
Replace Inverter
Normal Y
or module
voltage
End
N
Repair Power
Board or parts
※Precaution ☞A4 & A2
Always check & record S/W Version and White
Replace Main Board Re-enter White Balance value
Balance value before replacing the Main Board
1
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Standard Repair Process
Established
Error A. Video error date
OLED TV symptom
No video/ No audio Revised date 2/16
☞A9
Check various Check and
Normal Y
No Video/ voltages of Power replace
No audio Board ( 3.5V,12V,20V voltage?
MAIN B/D
or 24V…)
N End
Replace Power
Board and repair
parts
2
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Standard Repair Process
Established
Error A. Video error date
OLED TV symptom
Picture broken/ Freezing Revised date 3/16
. By using Digital signal level meter
☞ A3
. 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 Y
Normal Y Check SVC N Check
Connection Close
1. Reconnection Picture? S/W Version Bulletin? Tuner soldering
2. Install Booster N
Y
N
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
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Standard Repair Process
Established
Error A. Video error date
OLED TV symptom
Color error Revised date 4/16
☞A6 ☞ A7
※ Check
Check color by input
and replace
-External Input Y Y Y
Color Link Cable Color Color
-COMPONENT Replace Main B/D Replace module
error? (V by one) error? error?
-AV
and contact
-HDMI N N N
condition
Check error End
color input
mode
Check
External Input/ External device Y
external
Component /Cable Replace Main/T-con B/D
device and
error normal
cable
N
Request repair
for external
device/cable
N
Check external External device Y
HDMI device and /Cable Replace Main/T-con B/D
error cable normal
4
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Standard Repair Process
A. Video error Established
Error date
OLED TV symptom Vertical / Horizontal bar, residual image,
light spot, external device color error Revised date 5/16
Vertical/Horizontal bar, residual image, light spot Replace
Module
☞A6
☞ A7 N
Check color condition by input Check external
Check and
-External Input Screen Y device Y Screen N Screen
-Component Normal? replace Link Replace Main/T-con B/D
normal? connection normal? normal?
-HDMI Cable
condition
N N For LGD panel Y
Y
Replace Main B/D
Replace Request repair End End
module for external
device
For other panel
External device screen error-Color error
Check screen
condition by input
-External Input External
Check S/W Version Check N
-Component Input Connect other external N
version
-HDMI/DVI error device and cable Screen Replace
(Check normal operation of normal? Main/T-con
Y External Input, Component, B/D
Component RGB and HDMI/DVI by
error Y
S/W Upgrade connecting Jig, pattern
Generator ,Set-top Box etc.
Request repair for
external device
Y
Connect other external
Normal N HDMI/
device and cable N
screen? DVI Screen Replace
(Check normal operation of
External Input, Component, normal? Main /T-con
Y RGB and HDMI/DVI by B/D
connecting Jig, pattern
Generator ,Set-top Box etc.
End
5
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Standard Repair Process
Established
Error B. Power error date
OLED TV symptom
No power Revised date 6/16
* If LED Blinking happened, ☞A15, A16, A17
☞A8 ☞A9
DC Power on Replace
Check Power LED Y Normal N Check Power Y
by pressing Power Key OK? Power
Logo LED On? operation? On ‘”High”
On Remote control B/D
N Y
Check Power cord Replace Main B/D
was inserted properly
☞A9
N Measure voltage of each output of Power B/D
Normal?
Y
Y Y
※ Normal
voltage?
Replace Main B/D
Close Normal
Check ST-BY 3.5V
Y
voltage? N
. Stand-By: Red or Turn On ☞A9 Replace Power B/D
. Operating: Turn Off N
. Abnormal Case : Blinking
-AM_MODE : Orange
-Moving Speaker : Magenta
-FAN or High Temperature : Blue Replace Power
B/D
6
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Standard Repair Process
Established
Error B. Power error date
OLED TV symptom
Off when on, off while viewing, power auto on/off Revised date 7/16
Check outlet
☞A10
N Y
Check A/C cord Error? Check Power Off CPU Normal? End
Replace Main B/D
Mode Abnormal
N
Check for all 2 phase
power out Y Abnormal Replace Power B/D
1
Fix A/C cord & Outlet ☞A9
and check each 2
(If Power Off mode
phase out
is not displayed) Normal Y
Replace Main B/D
Check Power B/D voltage?
voltage
N
※ Caution
Check and fix exterior Replace Power B/D
of Power B/D Part
* Please refer to the all cases which Status Power off List Explanation
"POWER_OFF_BY_REMOTE_KEY" Power off by REMOTE CONTROL
can be displayed on power off mode.
"POWER_OFF_BY_OFF_TIMER" Power off by OFF TIMER
"POWER_OFF_BY_SLEEP_TIMER" Power off by SLEEP TIMER
"POWER_OFF_BY_INSTOP" Power off by INSTOP KEY
"POWER_OFF_BY_AUTO_OFF" Power off by AUTO OFF
Normal "POWER_OFF_BY_ON_TIMER" Power off by ON TIMER
"POWER_OFF_BY_RS232C" Power off by RS232C
"POWER_OFF_BY_RESREC" Power off by Reservated Record
"POWER_OFF_BY_RECEND" Power off by End of Recording
"POWER_OFF_BY_SW_DW" Power off by S/W Download
"POWER_OFF_BY_UNKNOWN" Power off by unknown status except listed case
Abnormal "POWER_OFF_BY_CPU_ABN" Power off by CPU Abnormal
7
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Standard Repair Process
Established
Error B. Power error date
OLED TV symptom
Off when on, off while viewing, power auto on/off Revised date 7/16
Check outlet
☞A10
N Y
Check A/C cord Error? Check Power Off CPU Normal? End
Replace Main B/D
Mode Abnormal
N
Check for all 2 phase
power out Y Abnormal Replace Power B/D
1
Fix A/C cord & Outlet ☞A9
and check each 2
(If Power Off mode
phase out
is not displayed) Normal Y
Replace Main B/D
Check Power B/D voltage?
voltage
N
※ Caution
Check and fix exterior Replace Power B/D
of Power B/D Part
* Please refer to the all cases which Status Power off List Explanation
"POWER_OFF_BY_REMOTE_KEY" Power off by REMOTE CONTROL
can be displayed on power off mode.
"POWER_OFF_BY_OFF_TIMER" Power off by OFF TIMER
"POWER_OFF_BY_SLEEP_TIMER" Power off by SLEEP TIMER
"POWER_OFF_BY_INSTOP" Power off by INSTOP KEY
"POWER_OFF_BY_AUTO_OFF" Power off by AUTO OFF
Normal "POWER_OFF_BY_ON_TIMER" Power off by ON TIMER
"POWER_OFF_BY_RS232C" Power off by RS232C
"POWER_OFF_BY_RESREC" Power off by Reservated Record
"POWER_OFF_BY_RECEND" Power off by End of Recording
"POWER_OFF_BY_SW_DW" Power off by S/W Download
"POWER_OFF_BY_UNKNOWN" Power off by unknown status except listed case
Abnormal "POWER_OFF_BY_CPU_ABN" Power off by CPU Abnormal
7
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Standard Repair Process
Established
Error C. Audio error date
OLED TV symptom
No audio/ Normal video Revised date 8/16
☞A11 ☞A12+A9
Check user N Check audio B+ Y
No audio Normal
menu > Off 20V of Power
Screen normal voltage
Speaker off Board
Y N
Cancel OFF Replace Power Board and repair parts
Check N
Disconnection Replace MAIN Board End
Speaker
disconnection
Y
Replace Speaker
8
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Standard Repair Process
Established
Error C. Audio error date
OLED TV symptom
Wrecked audio/ discontinuation/noise Revised date 9/16
→ abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio
Wrecked audio/
☞A12+A9
Check and replace
Discontinuation/ Check audio
speaker and
Noise for B+ Voltage (20V)
connector
Check input all audio
signal Y Y
Signal
-RF
normal? Wrecked audio/
-External Input Normal
signal Discontinuation/
N Replace Main B/D voltage?
Noise only
for D-TV
N
Wrecked audio/
Discontinuation/
Replace Power B/D
Noise only
for Analog
(When RF signal is not
received)
Request repair to external Wrecked audio/ Replace Main B/D End
cable/ANT provider Discontinuation/
Noise only
for External Input
(In case of N
External Input Connect and check Normal
signal error) other external audio?
Check and fix device
external device Y
Check and fix external device
9
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Standard Repair Process
D. Function error Established
Error date
OLED TV symptom
Remote control & Local switch checking Revised date 10/16
1. Remote control(R/C) operating error Replace
Main B/D
☞A13 ☞A13 ☞A13
Check & Repair N Check B+ Y Y
Check R/C itself Normal Y Normal Normal Check IR Normal
operating? Cable connection operating? 3.5V Voltage? Signal?
Operation Output signal
Connector solder On Main B/D
N Y N N
☞A9
Check R/C Operating Check & Replace Check 3.5v on Power B/D Repair/Replace
Close
When turn off light Baterry of R/C Replace Power B/D or IR B/D
in room Replace Main B/D
(Power B/D don’t have problem)
If R/C operate, Normal Y
operating? Close
Explain the customer
cause is interference
from light in room. N
Replace R/C
10
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Standard Repair Process
D. Function error Established
Error date
OLED TV symptom
MR16 operating checking Revised date 11/15
2. MR16A (Magic Remocon) operating error
☞A4
Check the N Check MR16A
RF Receiver ver Normal Y Press the Is show ok N Turn off/on the
INSTART menu is “00.00”? itself Operation operating? set and press
wheel message?
the wheel
N
Y
Y
☞A14
Check & Replace
Check & Repair Battery of MR16A Close
RF assy
connection
Normal Y
☞A4 operating? Close
Is show ok N Press the back
RF Receiver ver N message? key about 5sec
Close N
is “00.00”?
Y
Replace
MR16A
Y
Close
Down load the Firmware
* INSTART MENU12.RF •If you conduct the loop at 3times,
Remocon Test3. Firmware change the MR16A
download
11
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Standard Repair Process
Established
Error D. Function error date
OLED TV symptom
External device recognition error Revised date 14/16
Y Check technical
Check External Input and
Signal information Technical N
input Component 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
13
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Standard Repair Process
D. Function error Established
Error date
OLED TV symptom
Wifi operating checking Revised date 12/16
3.Wifi operating error
☞A4 ☞A15
Check the Wi-Fi Mac value N Check the Wifi wafer Normal N Replace
INSTART menu is “NG”? Voltage?
1pin Main B/D
Y
☞A15 Y
Check & Repair Close
Wifi cable
connection
☞A4
Wi-Fi Mac value N
is “NG”? Close
Y
Change the Wifi
assy
12
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Standard Repair Process
Established
Error E. Noise date
OLED TV symptom
Circuit noise, mechanical noise Revised date 15/16
Identify Check
Circuit
nose location of Replace PSU
noise
type noise
Mechanical Check location of
noise noise
※ When the nose is severe, replace the module
※ Mechanical noise is a natural (For models with fix information, upgrade the
phenomenon, and apply the 1st level S/W or provide the description)
description. When the customer does not OR
agree, apply the process by stage. ※ If there is a “Tak Tak” noise from the
※ Describe the basis of the description cabinet, refer to the KMS fix information and
in “Part related to nose” in the Owner’s then proceed as shown in the solution manual
Manual. (For models without any fix information,
provide the description)
14
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Standard Repair Process
Established
Error F. Exterior defect date
OLED TV symptom
Exterior defect Revised date 16/16
Zoom part with Module
Replace module
exterior damage damage
Cabinet
Replace cabinet
damage
Remote
control Replace remote control
damage
Stand
Replace stand
dent
15
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Contents of Standard Repair Process Detail Technical Manual
No. Error symptom Content Page Remarks
A. Video error_ No video/Normal
1 Check White Balance value A1
audio
TUNER input signal strength checking
2 A2
method
A. Video error_ video error /Video
3 lag/stop Version checking method A3
4 Tuner Checking Part A4
A. Video error _Vertical/Horizontal bar,
5 Connection diagram A5
residual image, light spot
Check Link Cable (EPI) reconnection
6 A. Video error_ Color error A6
condition
Exchange Module (1) A-1/2
7 Defected Type caused by T-Con/
Inverter/ Module Exchange Module (2) A-2/2
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Contents of Standard Repair Process Detail Technical Manual
No. Error symptom Content Page Remarks
8 Check front display Logo A8
B. Power error_ No power
9 Check power input Voltage & ST-BY 3.5V A9
B. Power error_Off when on, off
10 POWER OFF MODE checking method A10
while viewing
Checking method in menu when there is
11 A11
C. Audio error_ No audio/Normal no audio
video Voltage and speaker checking method
12 A12
when there is no audio
Remote control operation checking
13 A13
method
D. Function error Motion Remote operation checking
14 A14
method
15 Wifi operation checking method A15
16 E. Etc Tool option changing method A16
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
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Standard Repair Process Detail Technical Manual
Error Established
symptom A. Video error_No video/Normal audio date
OLED TV
Revised
Content Check White Balance value A1
date
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 BOARD.
A2
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Standard Repair Process Detail Technical Manual
Error Established
symptom A. Video error_Video error, video lag/stop date
OLED TV
TUNER input signal strength checking method Revised
Content date A3
All Settings Channels Channel Tuning
When the signal is strong, use the
attenuator (-10dB, -15dB, -20dB etc.)
A3
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Standard Repair Process Detail Technical Manual
Error Established
symptom A. Video error_Video error, video lag/stop date
OLED TV
Version checking method Revised
Content date A4
1. Checking method for remote control for adjustment
Version
Press the IN-START with the remote
control for adjustment
A4
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Standard Repair Process Detail Technical Manual
Error Established
symptom
A. Video error_Video error, video lag/stop
OLED TV date
Revised
Content TUNER checking part A5
date
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.
A5
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Standard Repair Process Detail Technical Manual
Error A. Video error _Vertical/Horizontal bar, Established
OLED TV symptom residual image, light spot date
Revised
Content Connection diagram date A6
As the part connecting to the external input, check
the screen condition by signal
A6
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Standard Repair Process Detail Technical Manual
Error Established
symptom A. Video error_Color error date
OLED TV
Revised
Content Check Link Cable (EPI) reconnection condition date A7
1. Remove all of the top assy and components for making the same situation like picture under below.
Please Refer to the exploded diagrams of TV set.
2. Check the contact condition of the Link Cable, especially dust or mis insertion.
A7
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Appendix : Exchange the Module (1)
Vertical abnormal display Brightness difference Line Dim
Crosstalk Press damage Crosstalk
Un-repairable Cases
In this case please exchange the module.
Burnt
A – 1/2
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Appendix : Exchange the Module (2)
Angle view Color difference Brightness dot noise Half dead
Brightness difference
Green Noise on power on/off time Line Defect
Un-repairable Cases
In this case please exchange the module.
Mura
A – 2/2
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Standard Repair Process Detail Technical Manual
Error Established
symptom B. Power error _No power date
OLED TV
Revised
Content Check front display Logo date A8
A8
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Standard Repair Process Detail Technical Manual
Error Established
symptom
B. Power error _No power
OLED TV date
Revised
Content Check power input voltage and ST-BY 3.5V A9
date
24Pin(Power Board ↔ Main Board)
1 DRV ON 2 DPC_CTL
3 GND 4 GND
5 20V 6 20V
7 12V 8 12V
9 GND 10 GND
11 PWR ON 12 AC_DET
13 GND 14 GND
15 GND 16 GND
17 12V 18 12V
Check the DC 20V, 12V, 3.5V. 19 GND 20 GND
21 20V 22 20V
23 20V 24 20V
A9
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Standard Repair Process Detail Technical Manual
Error
symptom B. Power error _Off when on, off whiling viewing Established
date
OLED TV
Revised
Content POWER OFF MODE checking method date 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)
A10
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Standard Repair Process Detail Technical Manual
Error Established
symptom C. Audio error_No audio/Normal video
OLED TV date
Revised
Content Checking method in menu when there is no audio date 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 TV Speaker
A11
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Standard Repair Process Detail Technical Manual
Error Established
symptom C. Audio error_No audio/Normal video date
OLED TV
Voltage and speaker checking method Revised
Content date A12
when there is no audio
③
24Pin(Power Board ↔ Main Board)
② 1 DRV ON 2 DPC_CTL
3 GND 4 GND
5 20V 6 20V
7 12V 8 12V
9 GND 10 GND
11 PWR ON 12 AC_DET
13 GND 14 GND
15 GND 16 GND
①
17 12V 18 12V 1 SPK_R- 2 SPK_R+_
19 GND 20 GND 3 SPK_L- 4 SPK_L+
21 20V 22 20V 5 SPK_R-WF 6 SPK_R+_WF
23 20V 24 20V 7 SPK_L-_WF 8 SPK_L+_WF
Checking order when there is no audio
① Check the contact condition of or 20V connector of Main Board
② Measure the 20V 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 the
GND and output terminal, the speaker is normal.
A12
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Standard Repair Process Detail Technical Manual
Error Established
symptom D. Function error date
OLED TV
Revised
Content Remote control operation checking method date A13
②
①
P4000
1 GND 2 KEY1
③ 3 KEY2 4 GND
5 GND 6 BLUE
7 +5V 8 +3.5V
Checking order 9 GND 10 RED
11 GREEN 12 GND
1, 2. Check IR cable condition between IR & Main board.
3. Check the st-by 3.5V on the terminal 8 on P4000 13 EYE_SCL 14 EYE_SDA
15 GND 16 IR
17 N.C. 18 N.C.
A13
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Standard Repair Process Detail Technical Manual
Error Established
symptom D. Function error date
OLED TV
Revised
Content Motion Remote operation checking method date A14
P4004
P4002
① WIFI
1 3.5V_WIFI
2 WIFI_DM
②
③ 3 WIFI_DP
4 GND
5 WOL/WIFI_POWER_ON
6 3.5V_WIFI
7 COMBO_RESET
8 GND
9 BT_WAKEUP_DEVICE
Checking order
10 BT_WAKEUP_HOST
1. Check IR cable condition between IR & Main board. 11 GND
2. Check WIFI Combo cable condition between WIFI Combo Assy & Main board.
3. Check the 3.5V_WIFI P4004 on the terminal 1 & 6 12 GND
13 N.C.
A14 14 N.C.
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Standard Repair Process Detail Technical Manual
Error Established
symptom D. Function error date
OLED TV
Revised
Content Abnormal Case. date A15
AM_MODE(Connection Error) Alarm – Blinking Orange Color LED
① ③
②
④
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
A15
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
Standard Repair Process Detail Technical Manual
Error Established
symptom D. Function error date
OLED TV
Revised
Content Abnormal Case. date A16
Moving Speaker Error Alarm – Blinking Magenta Color LED
Up/Down
Motor
①
②
Door S/W
Door
Motor
Up/Down
S/W
Checking order
1. Check LED Color Magenta
2. Check MOTOR 12V (Q10002 or L10002)
3. Check DET SW broken or not.
4. Check Motor
5. Replace each part or Cover Top Assy.
A15
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
Standard Repair Process Detail Technical Manual
Error Established
symptom D. Function error date
OLED TV
Revised
Content Abnormal Case. date A17
FAN or Overheat mode Alarm – Blinking Blue Color LED
2-1 Poweronly
①
2-2 Instart >13.OLED
③
2nd FAN 1st FAN
Checking order
1. Check LED color Blue Temp.
2. Check FAN Stauts (Poweronly mode or Instart > OLED) Sensor
3. Replace FAN or Temperature Sensor.
A15
Copyright © 2017 LG Electronics Inc. All rights reserved. LGE Internal Use Only
Only for training and service purposes
