CONFIDENTIAL
LED TV
SERVICE MANUAL
MODEL : 32LR600BPSA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you
have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.
The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service
Manual.
Copyright ⓒ 2023 LG Electronics. Inc. All right reserved. Only for training and service purposes
CONTENTS
CONTENTS …………………………………………………………………2
SAFETY PRECAUTIONS ………………………………………………3
SERVICING PRECAUTIONS …………………………………………5
SPECIFICATION …………………………………………………………10
SOFTWARE UPDATE …………………………………………………13
BLOCK DIAGRAM ………………………………………………………16
EXPLODED VIEW ………………………………………………………17
WIRING DIAGRAM ……………………………………………………18
DISASSEMBLY/ASSEMBLY GUIDE ……………………………19
TROUBLE SHOOTING GUIDE…………………………APPENDIX
SAFETY PRECAUTIONS
General Guidance
An isolation Transformer should always be used during the servicing of a receiver whose
chassis is not isolated from the AC power line. Use a transformer of adequate power rating as
this protects the technician from accidents resulting in personal injury from electrical shocks.
It will also protect the receiver and it's components from being damaged by accidental shorts
of the circuitry that may be inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1 W), keep the resistor
10 mm away from PCB. Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer, always perform an AC leakage current check on
the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set
is safe to operate without damage of electrical shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an electrical jumper across the
two AC plug prongs. Place the AC switch in the on position, connect one lead of ohm-meter to
the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed
metallic parts such as antenna terminals, phone jacks, etc.
If the exposed metallic part has a return path to the chassis, the measured resistance should
be between 1 MΩ and 5.2 MΩ .
When the exposed metal has no return path to the chassis the reading must be infinite.
Another abnormality exists that must be corrected before the receiver is returned to the
customer.
Leakage Current Hot Check (See below Figure) Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor between a known good
earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more
sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each
exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is
corresponds to 1.5mA
In case any measurement is out of the limits specified, there is possibility of shock hazard and
the set must be checked and repaired before it is returned to the customer.
Leakage Current Hot Check circuit
SERVICING PRECAUTIONS
CAUTION: Before servicing receivers covered by this service manual and its
supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3
of this publication.
NOTE: If unforeseen circumstances create conflict between the following servicing
precautions and any of the safety precautions on page 3 of this publication,
always follow the safety precautions. Remember: Safety First.
General Servicing Precautions
1.Always unplug the receiver AC power cord from the AC power source before;
a. Removing or reinstalling any component, circuit board module or any other
receiver assembly.
b. Disconnecting or reconnecting any receiver electrical plug or other electrical
connection.
c. Connecting a test substitute in parallel with an electrolytic capacitor in the
receiver.
CAUTION: A wrong part substitution or incorrect polarity installation of
electrolytic capacitors may result in an explosion hazard.
2.Test high voltage only by measuring it with an appropriate high voltage meter or
other voltage measuring device (DVM, FETVOM, etc.) equipped with a suitable
high voltage probe. Do not test high voltage by "drawing an arc".
3.Do not spray chemicals on or near this receiver or any of its assemblies.
4.Unless specified otherwise in this service manual, clean electrical contacts only
by applying the following mixture to the contacts with a pipe cleaner, cotton-
tipped stick or comparable non-abrasive applicator; 10 % (by volume) Acetone and
90 % (by volume) isopropyl alcohol (90 % - 99 % strength) CAUTION: This is a
flammable mixture.
Unless specified otherwise in this service manual, lubrication of contacts in not
required.
5.Do not defeat any plug/socket B+ voltage interlocks with which receivers
covered by this service manual might be equipped.
6.Do not apply AC power to this instrument and/or any of its electrical assemblies
unless all solid-state device heat sinks are correctly installed.
7.Always connect the test receiver ground lead to the receiver chassis ground
before connecting the test receiver positive lead.
Always remove the test receiver ground lead last.
8.Use with this receiver only the test fixtures specified in this service manual.
CAUTION: Do not connect the test fixture ground strap to any heat sink in this
receiver.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid-state) devices can be damaged easily by static
electricity. Such components commonly are called Electrostatically Sensitive (ES)
Devices. Examples of typical ES devices are integrated circuits and some field-effect
transistors and semiconductor “chip” components. The following techniques
should be used to help reduce the incidence of component dam- age caused by
static by static electricity.
1.Immediately before handling any semiconductor component or semiconductor-
equipped assembly, drain off any electrostatic charge on your body by touching a
known earth ground. Alter- natively, obtain and wear a commercially available
discharging wrist strap device, which should be removed to prevent potential
shock reasons prior to applying power to the unit under test.
2.After removing an electrical assembly equipped with ES devices, place the
assembly on a conductive surface such as aluminum foil, to prevent electrostatic
charge buildup or expo- sure of the assembly.
3.Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4.Use only an anti-static type solder removal device. Some sol- der removal devices
not classified as “anti-static” can generate electrical charges sufficient to damage
ES devices.
5.Do not use Freon propelled chemicals. These can generate electrical charges
sufficient to damage ES devices.
6.Do not remove a replacement ES device from its protective package until
immediately before you are ready to install it. (Most replacement ES devices are
packaged with leads electrically shorted together by conductive foam, aluminum
foil or comparable conductive material).
7.Immediately before removing the protective material from the leads of a
replacement ES device, touch the protective material to the chassis or circuit
assembly into which the device will be installed.
CAUTION: Be sure no power is applied to the chassis or circuit, and observe all
other safety precautions.
8.Minimize bodily motions when handling unpackaged replacement ES devices.
(Otherwise harmless motion such as the brushing together of your clothes fabric
or the lifting of your foot from a carpeted floor can generate static electricity
sufficient to damage an ES device.)
General Soldering Guidelines
1.Use a grounded-tip, low-wattage soldering iron and appropriate tip size and
shape that will maintain tip temperature within the range or 500 °F to 600 °F.
2.Use an appropriate gauge of RMA resin-core solder composed of 60 parts tin/40
parts lead.
3.Keep the soldering iron tip clean and well tinned.
4.Thoroughly clean the surfaces to be soldered. Use a mall wire- bristle (0.5 inch, or
1.25 cm) brush with a metal handle.
Do not use Freon propelled spray-on cleaners.
5.Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal temperature. (500 °F to 600 °F)
b. Heat the component lead until the solder melts.
c. Quickly draw the melted solder with an anti-static, suction- type solder removal
device or with solder braid.
CAUTION: Work quickly to avoid overheating the circuit board printed foil.
6.Use the following soldering technique.
a. Allow the soldering iron tip to reach a normal temperature (500 °F to 600 °F)
b. First, hold the soldering iron tip and solder the strand against the component
lead until the solder melts.
c. Quickly move the soldering iron tip to the junction of the component lead and the
printed circuit foil, and hold it there only until the solder flows onto and around both
the component lead and the foil.
CAUTION: Work quickly to avoid overheating the circuit board printed foil.
d. Closely inspect the solder area and remove any excess or splashed solder with a
small wire-bristle brush.
IC Remove/Replacement
Some chassis circuit boards have slotted holes (oblong) through which the IC leads
are inserted and then bent flat against the circuit foil. When holes are the slotted
type, the following technique should be used to remove and replace the IC. When
working with boards using the familiar round hole, use the standard technique as
outlined in paragraphs 5 and 6 above.
Removal
1. Disorder and straighten each IC lead in one operation by gently prying up on the
lead with the soldering iron tip as the solder melts.
2. Draw away the melted solder with an anti-static suction-type solder removal
device (or with solder braid) before removing the IC.
Replacement
1. Carefully insert the replacement IC in the circuit board.
2. Carefully bend each IC lead against the circuit foil pad and solder it.
3. Clean the soldered areas with a small wire-bristle brush.
(It is not necessary to reapply acrylic coating to the areas).
"Small-Signal "Discrete Transistor
Removal/Replacement
1.Remove the defective transistor by clipping its leads as close as possible to the
component body.
2.Bend into a "U" shape the end of each of three leads remaining on the circuit
board.
3.Bend into a "U" shape the replacement transistor leads.
4.Connect the replacement transistor leads to the corresponding leads extending
from the circuit board and crimp the "U" with long nose pliers to insure metal to
metal contact then solder each connection.
Power Output, Transistor Device
Removal/Replacement
1.Heat and remove all solder from around the transistor leads.
2.Remove the heat sink mounting screw (if so equipped).
3.Carefully remove the transistor from the heat sink of the circuit board.
4.Insert new transistor in the circuit board.
5.Solder each transistor lead, and clip off excess lead.
6.Replace heat sink.
Diode Removal/Replacement
1. Remove defective diode by clipping its leads as close as possible to diode
body.
2. Bend the two remaining leads perpendicular y to the circuit board.
3. Observing diode polarity, wrap each lead of the new diode around the
corresponding lead on the circuit board.
4.Securely crimp each connection and solder it.
5.Inspect (on the circuit board copper side) the solder joints of the two "original"
leads. If they are not shiny, reheat them and if necessary, apply additional solder.
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.
3.Solder the connections.
CAUTION: Maintain original spacing between the replaced component and
adjacent components and the circuit board to prevent excessive component
temperatures.
Circuit Board Foil Repair
Excessive heat applied to the copper foil of any printed circuit board will weaken
the adhesive that bonds the foil to the circuit board causing the foil to separate
from or "lift-off" the board. The following guidelines and procedures should be
followed when- ever this condition is encountered.
At IC Connections
To repair a defective copper pattern at IC connections use the following
procedure to install a jumper wire on the copper pattern side of the circuit
board. (Use this technique only on IC connections).
1.Carefully remove the damaged copper pattern with a sharp knife. (Remove
only as much copper as absolutely necessary).
2.carefully scratch away the solder resist and acrylic coating (if used) from the
end of the remaining copper pattern.
3.Bend a small "U" in one end of a small gauge jumper wire and carefully crimp
it around the IC pin. Solder the IC connection.
4.Route the jumper wire along the path of the out-away copper pattern and let
it overlap the previously scraped end of the good copper pattern. Solder the
overlapped area and clip off any excess jumper wire
At Other Connections
Use the following technique to repair the defective copper pattern at
connections other than IC Pins. This technique involves the installation of a
jumper wire on the component side of the circuit board.
1.Remove the defective copper pattern with a sharp knife. Remove at least 1/4
inch of copper, to ensure that a hazardous condition will not exist if the jumper
wire opens.
2.Trace along the copper pattern from both sides of the pattern break and
locate the nearest component that is directly connected to the affected copper
pattern.
3.Connect insulated 20-gauge jumper wire from the lead of the nearest
component on one side of the pattern break to the lead of the nearest
component on the other side.
Carefully crimp and solder the connections.
CAUTION: Be sure the insulated jumper wire is dressed so the it does not touch
components or sharp edges.
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for
improvement.
1.Application range
1.1This spec sheet is applied TCL ODM LCD TV
2.Requirement for Test
Each part is tested as below without special notice.
2.1 Temperature : 25±5℃ (77±9℉), CST : 40±5℃
2.2 Relative Humidity : 60±10%
2.3 Power Voltage : Standard input voltage 110 V-240V ~ @ 50/60Hz for
32LR600BPSA
Standard Voltage of each product is marked by models.
2.4 Specification and performance of each parts are followed each drawing and
specification by part number in accordance with BOM.
2.5 The receiver must be operated for about 20 minutes prior to the adjustment.
3. Test method
3.1 Performance: LGE TV test method followed.
3.2 Demanded other specification
Safety : CE, IEC specification
EMC : IEC
4.Model General Specification
No Item Specification Remarks
1 Market Brazil
2 Broadcasting system SBTVD / NTSC-M / PAL-N / PAL-M
VHF 2 ~ 13
UHF 14 ~ 69
3 Available Channel
DTV 2 ~ 69
CATV 1 ~ 135
Digital : SBTVD
4 Receiving system Brazil
Analog : NTSC-M / PAL-N / PAL-M
HDMI 1 PC / DTV Format Support 340Mbps,
5 HDMI Input FHD
Support 340Mbps,
HDMI 2 PC / DTV Format
Support ARC/eARC
6 Audio out SPDIF Optical Audio out Rear (1EA)
EMF, DivX HD, For SVC
7 USB Input JPEG, MP3, DivX HD
(download)
8 Ethernet connect STP cable
5. HDMI Input (DTV&PC)
(1) DTV mode
H-freq V-freq Pixel clock
No Resolution Proposed Remarks
(kHz) (Hz) (MHz)
1 640*480 31.46 59.94 25.12 SDTV 480P
2 640*480 31.5 60 25.12 SDTV 480P
3 720*480 31.47 59.94 27 SDTV 480P
4 720*480 31.5 60 27.02 SDTV 480P
5 720*576 31.25 50 27 SDTV 576P
6 1280*720 44.96 59.94 74.17 HDTV 720P
7 1280*720 45 60 74.25 HDTV 720P
8 1280*720 37.5 50 74.25 HDTV 720P
9 1920*1080 28.12 50 74.25 HDTV 1080I
10 1920*1080 33.72 59.94 74.17 HDTV 1080I
11 1920*1080 33.75 60 74.25 HDTV 1080I
12 1920*1080 26.97 23.97 63.29 HDTV 1080P
13 1920*1080 27 24 63.36 HDTV 1080P
14 1920*1080 33.71 29.97 79.12 HDTV 1080P
15 1920*1080 33.75 30 79.2 HDTV 1080P
16 1920*1080 56.25 50 148.5 HDTV 1080P
17 1920*1080 67.43 59.94 148.35 HDTV 1080P
18 1920*1080 67.5 60 148.5 HDTV 1080P
(2) PC mode
H-freq V-freq Pixel
No Resolution clock Proposed Remarks
(kHz) (Hz)
(MHz)
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 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 SXGA Support to HDMI-PC
SOFTWARE UPDATE
USB DOWNLOAD
(1) Plug in the USB to the TV
(2) If there are update-able files in the USB, the TV (5) TV has been starting SW update
would ask that the user want to process the SW
upper version update.
(6) After finishing the update, it will show a pop-
(3) Click “Yes” button : Start Update up below the picture
(4) Click “Check Now” : Go to SW Update menu for
monitoring (7) Click “Yes” : TV will be turn off and on itself
NSU DOWNLOAD
(This Function is needed to connect to the internet)
Case 1) Auto Update On
(3) If the user want to check the process of
(1) Go to Menu -> All Settings -> Support -> updating
Software Update, then check Auto update is [Menu -> All Settings -> Support -> Software
turned on. Update]
(2) After the update complete, the user can
check a pop-up below the picture, which (4) If it needs to cancel the update, click “cancel
indicated update is complete and the new update” button.
version will be applied after the TV turn off and
on.
(5) [“No”] : update continue
[“Yes”] : update cancel
NSU DOWNLOAD
(This Function is needed to connect to the internet)
Case 2) NOT Allow Automatic Updates
Toggle Item
(1) Go to Menu -> All Settings -> Support -> (4) If the user started the update, the TV shows a
Software Update pop-up below the picture.
(2) If it found upper version SW than the TV SW
version, TV would show a pop-up like below the
picture. (5) [CHECK NOW] : Just start the update
“The latest version of the SW is available for your [Close] : Close the pop-up
TV. Do you want to update now”
(3) [Yes] : update starts.
[No] : Close the pop-up, check out later
Main Circuit Block Diagram
I2C DEVICE
SYSTEM FUNCTION BLOCK DIAGRAM
Main Board Power Tree
(eff=90%)
5V UD11 如果外挂WiFi 需要UD1需要改为 3A
600mA 1250mA 1250mA 250mA
DC-DC CI CARD
JW5361
5V_STB 2250mA 1000mA 250mA
POWER_EN1_IC
UU1
1000mA OCP USB2.0*2
LPW5202F11 1000mA
USB_PWR_EN_IC
UD141
1V8_STB
100mA DC-DC 200mA
LC2201 300mA
900mA(MAX)
(eff=90%)
1V8_M
10mA
200mA(MAX)
POWER_EN1_IC
1000mA
WIFI
1000mA
WIFI_PWR_EN_IC
UD5
1.2V_DDR
300mA DC-DC 800mA
LC2202 300mA
1300mA(MAX)
(eff=90%)
DDR_EN_IC
UL2
2.5V_DDR_M
50mA 50mA LDO 11mA
LC1463CB5ATR25 200mA(MAX)
(eff=90%)
DDR_EN_IC
UD41
PSU 12V 4400mA DC-DC
TMI3253
2100mA
3V3_STB 100mA 100mA
3V3_STB(RT2864)
100mA
550mA 100mA 3V3_M(RT2864)
100mA
POWER_EN2_IC
100mA 3V3_EMMC
2K@60HZ 100mA
1000mA VCC-PANEL
1000mA
PANEL_EN_IC
250mA 3V3_Tun
200mA
300mA
(eff=90%)
UD121
CORE_1V0
370mA 450mA DC-DC 4.16A
JW5068AQFNF#TRPBF 10.1A(MAX)
CORE_EN_IC
(eff=90%)
UD121
SCPU_1V0
150mA DC-DC 1.3A
TMI3244T 10.1A(MAX)
CORE_EN_IC
WA15-6819B
1500mA 8欧姆 8W
1500mA
Copyright Ⓒ 2023 LG Electronics. Inc. All right reserved. Only for training and service
purposes
EXPLODED VIEW
Set :32LR600BPSA
N0. Description Part No. QTY's
1 PANEL 1
2 COVER_PCB P34T38570GM03K01BZ 1
3 BASE P34T3933ADT01L01BZ 2
4 LENS_IR P33T1488XMX01C0100 1
5 BKT_IO_SIDE X15T383360101A 1
6 BKT_IO_BTM X15T383470101A 1
7 BKT_VESA X15T343110100000Z2 1
8 SSB+PWB RTD2864FLV-GR 1
9 SPEAKER 378G0110264YAA 2
10 IR BOARD 715GC021-R01 1
11 RUBBER PAD X12G716008000000TH 1
12 Stand Screw XQ1G0940160047D4HN 4
13 Remote control 398GR08BELGN0800WX 1
14 WIFI/BT Cable_Black 368GAAWA756ZTX 1
15 WIFI/BT Cable_White 368GAAWA810ZTX 1
16 WIFI/BT Cable_Gray 368GAAWA745ZTX 1
Copyright ⓒ 2023 LG Electronics. Inc. All right reserved. Only for training and service purposes
WIRING DIAGRAM
HP1
Main board
(Power Board Integrated)
LV1
HS1
BT ANT
Wifi-1 ANT Wifi-2 ANT
HR1
SPEAKER SPEAKER
IR
HP1 HS1 HR1 LV1
Wifi-1 ANT BT ANT Wifi-2 ANT
Copyright © LG Electronics Inc. All rights reserved. Only for training and service purposes.
DISASSEMBLY PROCESS
SET
1.Unlock the screws to remove the stand out of the TV
2.Unlock the screws and remove the pins to separate the back cover **
3.Remove the back cover **
1)Grab the upper part of
the back cover with hand
2)and lift it upward
DISASSEMBLY PROCESS
** When open Back Cover, Carefully lift up around 10cm because connect speaker & IR
cable between Back cover and Main board. It can be damaged speaker / IR cable &
connector in M/B
** IR Board & Speaker located in B/Cover. NG : Don’t lift up too much and OK : lift up around 10cm
And cable connect from Back cover to Main board
suddenly
Speaker cable
IR cable
4. Disassemble IR PCB
Step1.Separate IR bracket from B/C
1). Press at corner of IR 2) . Push IR out B/C
NOTE: 1) and 2) are
applied at the same
time.
Step2.Separate IR PCB
1).Remove from the left and 2).Unplug the connector from the 3).Remove the IR lens, IR
right site clips IR PCB PCB
Warning: Do not damage the plastic clip when removing the IR board.
DISASSEMBLY PROCESS
SET
5.Remove the pins and tapes (yellow circle) to separate the SPK board (red
frame) from the rear cover
1). Remove the tapes(yellow circle) 3).Remove right/left SPK cables from
2).Then will see the connection ports of SPK cable, buckle(blue frame)
pull out the cables 4).Remove the speakers from the rear cover
DISASSEMBLY
PROCESS
SET
6. Disassemble guide of SPK.
Where the hand get in
Same space , New SPK ,disassembly won’t get more
hard
1) Disassemble using tools , such as screwdriver ,disassembly is easier.
Copyright ⓒ 2023 LG Electronics. Inc. All right reserved. Only for training and service purposes
DISASSEMBLY
PROCESS
SET
7. Remove the pins (blue circle), tapes (red frame) and screws (yellow circle)
to separate the Main board and VESA bracket
3 Screw:4PCS
3
2 1 3
2 Tapes:4PCS
1 Pins:4PCS
1
2
1
1
3 3
2 2
8. Remove Main board.
Step1.Remove VESA bracket and
then remove side AV bracket
Use a jig or flathead screwdriver to
(1) plug in the place (2) raise here to surpass the (3) push bracket to be
between bracket and metal height of embossment disassembled.
cover
DISASSEMBLY
PROCESS
SET
Step2.Remove the Main Board
Step3.Remove bottom AV bracket
Use a jig or flathead screwdriver to
(1) plug in the place (2) raise here to surpass the (3) push bracket to be
between bracket and metal height of embossment disassembled.
cover
9. Remove wifi antenna cable.
*Note: The antenna should
be routed on the side of
the black silicone pad. The
cable should not be
stacked under the black
silicone pad.
Setp1. The white antenna
cannot exceed the red
area when remove the
tape. Step2.Remove the white pin.
Copyright ⓒ 2023 LG Electronics. Inc. All right reserved. Only for training and service purposes
DISASSEMBLY
PROCESS
SET
Step3. The antenna lines the top and side of the L-
shape along the lower iron through the yellow area.
Step4.Remove the gray pin.
The wire should not be arranged into the purple
area.
Step5.The black antenna
Step6.Remove the black pin.
cannot exceed the red area
when remove the tape.
10.Panel.
Copyright ⓒ 2023 LG Electronics. Inc. All right reserved. Only for training and service purposes
ASSEMBLY PROCESS
SET
1. Install Main board.
Step1.Install VESA bracket,
and then install the bottom AV bracket
(Push from right to left). Step2.Install side AV bracket.
Step3.Install the Main Board.
ASSEMBLY PROCESS
SET
2. Install wifi antenna cable.
*Note: The antenna
should be routed on the
side of the black
silicone pad. The cable
should not be stacked
under the black silicone
pad.
Step1.Plug the white pin. Setp2. Attach the tape.
Step4. The antenna lines the top and side of the L-shape
along the lower iron through the yellow area. The wire
Step3.Plug the gray pin.
should not be arranged into the purple area.
Step5.Plug the black pin. Step6.The black antenna cannot exceed the red
area when attach the tape.
ASSEMBLY PROCESS
SET
3. Install the cables, pins (blue circle), tapes (red frame) and screws (yellow
circle) to assembly the Main board and WiFi antenna.
3 Screw:4PCS
3
2 1 3 2 Tapes:4PCS
1 Pins:4PCS
1
2
1
1
3 3
2 2
4.Install the tapes （ yellow circle ） to assemble the SPK board (red
frame) on the rear cover
1). Install the speaker to the SPK areas
on rear cover(red frame)
2). Connect the right/left SPK cables
3). Stick on the tapes(circled in yellow)
4. Put the SPK right/left cables into the
buckle(blue frame)
ASSEMBLY PROCESS
SET
5. Install the pins of the IR cable and SPK,when covering the back cover
Note ： When close Back Cover, Carefully connect cables under 10cm from
Back cover to Main board to prevent damaging speaker cable & connector in
M/B
Speaker
cable
IR cable
ASSEMBLY PROCESS
SET
6. Install the screws on the back cover
7.Install the screws to assemble the stand base.
TROUBLE SHOOTING
GUIDE
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right 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 Picture broken/Freezing 3
A. Video error
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,
7 7,8
power auto on/off
8 No audio/Normal video 9
C. Audio error
9 Wrecked audio/discontinuation/noise 10
10 Remote control & Local switch checking 11
11 MR22x 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 error Exterior defect 16
First of all, Check whether there is SVC Bulletin in GSCS System for these model.
Standard Repair Process
Established
Error A. Video error date
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/WIFI Cable etc.)
☞A1 ☞A9
No video Normal Y Check Back Light Y Check Power Normal Y Replace T-con/Main
On Board or module
Normal audio audio On with naked eye Board 12.5V etc. voltage
N ☞A9 N N
Check Power Board 12.5V output Repair Power
Move to
No video / No Au- Board or parts
dio
Normal Y
voltage Replace Mod-
ule
N En
d
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
Standard Repair Process
Established
Error A. Video error date
symptom
No video / No audio Revised date 2/16
☞A9
No Check various volt- Check and
Normal Y
video / ages of Power Board replace
(12.5V…) voltage?
No audio MAIN B/D
N End
Replace Power
Board and repair
parts
2
Standard Repair Process
Established
Error A. Video error date
symptom
Picture broken / Freezing Revised date 3/16
☞ A3 . By using Digital signal level meter
. By using Diagnostics menu on OSD
Check RF Signal level ( All Settings → General → Programmes → Programme Tuning & Settings → Signal Test )
- Signal strength (Normal : over 50%)
- Signal Quality (Normal : over 50%)
Check whether other equipments have problem or not.
Normal Y
(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 Tuner Y
Connection Close
1. Reconnection Picture? S/W Version Bulletin? soldering
2. Install Booster
Y
N N
S/W Upgrade
Normal N Contact with signal distributor
Picture? or broadcaster (Cable or Air)
Normal N
Y Picture? Replace
Main B/D
Y
Close
Close
3
Standard Repair Process
Established
Error A. Video error date
symptom
Color error Revised date 4/16
☞ A7
☞A6 ※ Check
and replace
Check color by input Y Y
Color Link Cable Color Color Y
- External Input Replace Main B/D Replace module
error? (LVDS Ca- error? error?
- HDMI
ble) and
N contact con- N N
dition
Check error End
color input
mode
☞A19
External Input/ Check exter- External
Y
Check Test pattern Component nal device device/Cable Replace Main/T-con B/D
error and normal
cable
N
Request repair
for external
device/cable
N
Check exter- External Y
HDMI
nal device and device/Cable Replace Main/T-con B/D
error
normal
cable
4
Standard Repair Process
Established
Error A. Video error date
symptom Vertical / Horizontal bar, residual image, Revised date 5/16
light spot, external device color error
Vertical/Horizontal bar, residual image, light spot Replace
Module
☞A6
☞ A7 N
Check color condition by input Check ex-
ternal de- Check and
- External Input Screen Y Y Screen N Screen
- HDMI vice con- Normal? replace Link Replace Main/T-con B/D
normal? normal? normal?
nection Cable
condition For with T-con panel
N N Y
Y
Replace Main B/D
Replace Request re- End End
☞ module pair for exter- For other panel
A19 nal device
Check Test pattern
External device screen error-Color error
Connect other external
Check screen External device and cable
N Replace
Check condition by in- Input, (Check normal operation Screen
Check S/W Version Main/T-con
version put HDMI of External Input, HDMI by normal?
N B/D
-External Input error connecting Jig, pattern
-HDMI Generator ,Set-top Box
Y
etc.
Y
S/W Upgrade
Request repair
for external de-
vice
Normal N
screen?
Y
End
5
Standard Repair Process
Established
Error B. Power error date
symptom
No power Revised date 6/16
☞A8 ☞A9
DC Power on Replace
Power Y Normal N Check Power Y
Check LED by pressing Power Key OK? Power
LED On? operation? On ‘”High”
On Remote control B/D
- Stand-By : Red or Turn On
- Operating : Turn Off N Y N
Check Power cord Replace Main B/D
was inserted prop- ☞A9
erly
Measure voltage of each
output of Power B/D
N
Normal?
Y Y Y
Normal
☞A9 voltage? Replace Main B/D
Normal
Close Check ST-BY 12.5V Y
voltage? N
Replace Power B/D
N
Replace Power
B/D
6
Standard Repair Process
Established
Error B. Power error date
symptom
Off when on, off while viewing, power auto on/off Revised date 7/16
☞A10
N Y
Check A/C cord, Outlet Error? Check Power Off CPU Normal?
Replace Main B/D End
Mode Abnormal
N
Y Abnormal Replace Power B/D
1
Fix A/C cord & Out- ☞
let and check out A10
(If Power Off mode
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
7
Standard Repair Process
Established
Error B. Power error date
symptom
Off when on, off while viewing, power auto on/off Revised date 8/16
* Please refer to the all cases which can be displayed on power off mode.
Power off
Contents Explanation Action Details
history
00~09, 0A~0Z Normal operation Occurs during normal operation (Remote_Key, Local_Key etc) Normal Case
10~19, 1A~1Z Power environment Items required for power environment inspection (AC_DET etc) Power Inspection and replacement
Normal Case - Settop CEC Check the settings
External equipment/ Power operation by external equipment/network
20~29, 2A~2Z - TV HDMI Setting > Simple Link Menu check
Network (HDMI CEC, WiFi/Lan/BT etc)
- Check 'Turn on TV with mobile device' Menu on the TV
Normal Case
Records according to customer use (Timer setting, reservation - Check your TV's 'Reservation Time Settings'
30~39, 3A~3Z User Scene
setting, no operation/no signal condition, initialization etc) - Input signal check (Auto power off after 15 minutes in
case of no signal)
App button operation on the remote control (Netflix key, Disney
40~49, 4A~4Z App/CP Normal Case
key etc)
50~59, 5A~5Z SW Update S/Ware Update record Normal Case
SW latest version check and update Main check and
60~69, 6A~6Z System Error System malfunction (need to check Main PCBA /SW)
replacement
70~79, 7A~7Z AR/AOD Records left during AR/AOD operation Normal Case
Normal Case - Check your TV's 'Voice Recognition
Settings'
80~89, 8A~8Z WOV Operation via Voice
* Turn off the function or change the sensitivity setting,
etc
90~99, 9A~9Z Specific country Specific country only (satellite, disaster etc) N/A
B0~B9, BA~BZ OLED(BDP) OLED only (Panel defect) OLED Module check and replacement (BDP)
C0~C9, CA~CZ OLED OLED only (Compensatory action) OLED Module check and replacement (Except BDP)
Checking T-con and main connection cable
D0~D9, DA~DZ OLED(etc) OLED only (Fan, FPC cable error etc)
Checking Fan / Heatsink Connection Status
L0~L9, LA~LZ Life style Standby me model etc N/A
R0~R9, RA~RZ A+ Rollable model only N/A
M0~M9, MA~MZ Wireless model Wireless model only N/A
Process/SVC
F0~F9, FA~FZ Process/SVC Records (in-stop, Power Only etc) Normal Case - N/A
Records
XX Initial value Initial value not recorded yet Normal Case
8
Standard Repair Process
Established
Error C. Audio error date
symptom
No audio/ Normal video Revised date 9/16
☞ ☞A12+A9
A11
Check user Check audio
No audio N Normal Y
menu -> Off 12.5V of Power
Screen normal voltage
Speaker off Board
Y N
Cancel OFF Replace Power Board and repair parts
Check N
Disconnection Replace MAIN End
Speaker dis-
Board
connection
Y
Replace Speaker
9
Standard Repair Process
Established
Error C. Audio error date
symptom
Wrecked audio/ discontinuation/noise Revised date 10/16
→ abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio
☞A12+A9
Wrecked audio/
Check and re-
Discontinuation/ Check audio
place speaker
Noise for B+ Voltage (12.5V)
and connector
Check input all audio
signal Signal Y
-RF
normal? Wrecked audio/
-External In- Normal Y
Discontinuation/
put signal N Replace Main B/D voltage?
Noise only
for D-TV
N
Wrecked audio/
Discontinuation/
Noise only Replace Power B/D
for Analog
(When RF signal is not
received)
Request repair to exter- Wrecked audio/ Replace Main B/D End
nal cable/ANT provider Discontinuation/
Noise only
for External Input
(In case of Ex- N
ternal Input sig- Connect and check Normal
nal error) other external de- audio?
Check and fix ex- vice
ternal device Y
Check and fix external device
10
Standard Repair Process
Established
Error D. Function error date
symptom
Remote control & Local switch checking Revised date 11/16
1. Remote control(R/C) operating error Replace
Main B/D
☞A13 ☞A13
☞A13
Check & Repair N Y Y
Check R/C itself Normal Y Normal Check B+3.4V Normal Check IR Normal
operating? Cable connection operating? Voltage? Signal?
Operation On Main B/D Output signal
Connector solder
N
Y N N
☞A9
Check R/C Operating Check & Replace Check 12.5V 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
11
Standard Repair Process
Established
Error D. Function error date
symptom
Magic Remote control operating checking Revised date 12/16
*Depending on country
2. Magic Remote control operating error
☞A4
N N Turn off/on the
Check the IN- RF Receiver Check MR23 it- Normal Y Press the Is show ok
ver is “00.00”? operating? message? set and press
START menu self Operation wheel
the wheel
N Y
Y
☞A15
Check & Replace Close
Check & Repair Battery of MR23
RF assy connec-
tion
Normal Y
☞A4 operating? Close
Is show ok N Press the back
RF Receiver ver N N message? key about 5sec
is “00.00”? Close
Y
Replace
Y MR23
Close
Down load the Firmware
* If you conduct the loop at 3times, change the MR23.
* INSTART MENU
14.RF Remote control Test
3. Firmware download
12
Standard Repair Process
Established
Error D. Function error date
symptom
WIFI operating checking Revised date 13/16
3. WIFI operating error
☞A4 ☞A14
Check the IN- Wi-Fi Mac value N Check the WIFI wafer Normal N Replace
START menu is “NG”? 1pin Voltage? Main B/D
Y
Y
☞A14
Close
Check & Repair
WIFI cable con-
nection
☞A4
Wi-Fi Mac value N
Close
is “NG”?
Y
Change the WIFI
assy
13
Standard Repair Process
Established
Error D. Function error date
symptom
External device recognition error Revised date 14/16
Check techni-
Check Y External Input
Signal cal information Technical N
and Component
input input? information? Replace Main B/D
- Fix informa- Recognition error
signal
tion
N - S/W Version Y
HDMI Optical
Check and fix Recognition
Fix in accor-
external device/cable dance with error
technical in-
formation
14
Standard Repair Process
Established
Error E. Noise date
symptom
Circuit noise, mechanical noise Revised date 15/16
Identify Circuit Check loca-
Replace PSU
noise noise tion of noise
type
Mechanical Check loca-
noise tion of noise
※ When the nose is severe, replace the mod-
※ Mechanical noise is a natural phe- ule
nomenon, and apply the 1st level de- (For models with fix information, upgrade the
scription. When the customer does not S/W or provide the description)
O
agree, apply the process by stage. R ※ If there is a “Tak Tak” noise from the cab-
※ Describe the basis of the description
inet, refer to the KMS fix information and
in “Part related to nose” in the Owner’s
then proceed as shown in the solution man-
Manual.
ual
(For models without any fix information,
provide the description)
15
Standard Repair Process
Established
Error F. Exterior defect date
symptom
Exterior defect Revised date 16/16
Zoom part with Module
Replace module
exterior dam- damage
age
Cabinet
damage Replace cabinet
Remote
control Replace remote control
damage
Stand
dent Replace stand
16
Contents of Standard Repair Process Detail Technical Manual
No
Error symptom Content Page Remarks
.
1 Check Back Light On with naked eye 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 lag/
4 stop 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/EPI) reconnection
7 A. Video error_ Color error A7
condition
Check Cable (1) ~ (2) A-1/11 ~ 2/11
Exchange Main Board (1) ~ (3) A-3/11 ~ 5/11
8 Exchange Module (1) ~ (3) A-6/11 ~ 8/11
Defected Type caused by T-Con/ Module
Exchange T-Con (1) ~ (2) A-9/11 ~ 10/11
Exchange Power Board(PSU) A-11/11
Continue to the next page
Contents of Standard Repair Process Detail Technical Manual
Continued from previous page
No. Error symptom Content Page Remarks
9 Check front display LED(Power Indicator) A8
B. Power error_ No power
10 Check power input Voltage & ST-BY A9
B. Power error_Off
11 POWER OFF MODE checking method A11
(When on/off, while viewing)
12 Checking method in menu when there is no audio A12
C. Audio error_ No audio/Normal
video Voltage and speaker checking method when there is
13 A13
no audio
14 Remote control operation checking method A14
D. Function error
15 Magic Remote/WiFi operation checking method A15
16 How to use the Service remote control A16-A18
17 E. Etc Check items after Main B/D replacement A19
18 Adjustment Test pattern - ADJ Key A20
19 F. WIFI/RF How to check WIFI/RF A21
Standard Repair Process Detail Technical Manual
Error Establishe
symptom A. Video error_No video/Normal audio d date
Revised
Content Check LCD back light with naked eye date A1
A1
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right reserved. Only for training and service
purposes
Standard Repair Process Detail Technical Manual
Error Establishe
symptom A. Video error_No video/Normal audio d date
Revised
Content Check White Balance value date A2
A2
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right reserved. Only for training and service
purposes
Standard Repair Process Detail Technical Manual
Error Establishe
symptom A. Video error_Video error, video lag/stop d date
Revised
Content TUNER input signal strength checking date A3
method
All Setting→General →
Channels→Channel Tuning
→Manual Tuning
A3
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right reserved. Only for training and service
purposes
Standard Repair Process Detail Technical Manual
Error Establishe
symptom A. Video error_Video error, video lag/stop d date
Revised
Content Version checking method date A4
A4
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right reserved. Only for training and service
purposes
Standard Repair Process Detail Technical Manual
Error Establishe
symptom A. Video error_Video error, video lag/stop d date
Revised
Content TUNER checking part date A5
A5
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right reserved. Only for training and service
purposes
Standard Repair Process Detail Technical Manual
Error A. Video error _Vertical/Horizontal Establishe
symptom bar, residual image, light spot d date
Revised
Content connection diagram (1) date A6
A6
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right reserved. Only for training and service
purposes
Standard Repair Process Detail Technical Manual
Error Establishe
symptom A. Video error_Color error d date
Revised
Content Check Link Cable(Vx1/EPI) reconnection condition date A7
32LR600BPSA
A7
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right 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 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 - 1/11
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 - 2/11
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 - 3/11
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 - 4/11
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 - 5/11
Appendix. Examples of Symptoms(Module) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
Isometric Isometric horizontal bars occur throughout
MODULE
Horizontal Bar the screen
MODULE Internal matter BLU internal foreign matter inflow
MODULE Image broken 6 block image broken
MODULE Image broken Screen sync signal broken
A - 6/11
Appendix. Examples of Symptoms(Module) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
Internal damage and image breakage due to
MODULE Image broken
external impact
Bending due to lateral external impact and
MODULE Bend on the screen
internal bending of BLU
Vertical spreading on cube screen in no sig-
MODULE Vertical smear
nal
MODULE Over color Screen contour part brightly Over color
A - 7/11
Appendix. Examples of Symptoms(Module) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
MODULE Vertical bar Center Vertical Bar
MODULE Screen darkness Center of the screen 1 block dark
MODULE Vertical bar Center Vertical Bar
Darkness at the
MODULE bottom of the MODULE internal BLU breakage
screen
A - 8/11
Appendix. Examples of Symptoms(T-Con) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
screen lower image T-Con is defective and the picture below the
T-CON
broken screen is broken
screen lower image T-Con is defective and the picture below the
T-CON
broken screen is broken
screen lower image T-Con is defective and the picture below the
T-CON
broken screen is broken
screen lower image T-Con is defective and the picture below the
T-CON
broken screen is broken
A - 9/11
Appendix. Examples of Symptoms(T-Con) Check parts by symptom
Symptom
Item Cause Symptom Image
Name
T-CON Wafer Locking The strength is weak
T-CON Image Broken
and cable contact failure occurs
Darkness at the top Initial normal operation,
T-CON
of the screen upper darkness during heat run
The entire screen is dark and bit noise oc-
T-CON Image Broken
curs
The entire screen is dark and bit noise oc-
T-CON Image Broken
curs
A - 10/11
Appendix : Exchange Power Board (PSU)
No Light No picture/Sound Ok
A - 11/11
Standard Repair Process Detail Technical Manual
Error Established
symptom B. Power error _No power date
Revised
Content Check front Power Indicator A8
date
ST-BY condition : On or Off
Power ON condition : Turn Off
A8
Standard Repair Process Detail Technical Manual
Error Established
symptom B. Power error _No power date
Revised
Content Check power input voltage and ST-BY A9
date
SET Model Power P/N, Name
CNB802
CNB2
32LR600BPSA NA Pin No. Signal
Pin No. Signal
1 LED-
Power Check Sequence 1 BL_ON
2 NC
2 GND
1. AC input Check : CNB1 (110~240Vac) 3 LED+
3 12.5V
2. PWR-ON Check : UL1, 6 pin 4
PWM_DI
- SET On : above 3V M
- SET St-by : 0V
3. 12.5V DC Check : CNB2, 3 pin
- SET On : 12.5V
- SET St-by : 12.5V
4. Backlight-ON Check : CNB2, 1 pin
- SET On : above 3V
- SET St-by : 0V
5. LED voltage Check : CNB802
CNB1 (AC input)
All condition meets, Power unit OK. A9
Standard Repair Process Detail Technical Manual
Error Establishe
symptom B. Power error _No power d date
Revised
Content POWER OFF MODE checking method date A19
RELEASE
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right reserved. Only for training and service
purposes
Standard Repair Process Detail Technical Manual
Error Established
symptom C. Audio error_No audio/Normal video date
Revised
Content Checking method in menu when there is no audio A12
date
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.
A12
Standard Repair Process Detail Technical Manual
Error Established
symptom C. Audio error_No audio/Normal video date
Voltage and speaker checking method Revised
Content A13
when there is no audio date
[32LR600BPSA]
CNB2
Pin No. Signal
1 BL_ON
2 GND
① 3 12.5V
PWM_DI
② 4
M
③
Checking order when there is no audio
1. Check the contact condition of or 12.5V connector of Main Board.
③
2. Measure the 12.5V 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.
A13
Standard Repair Process Detail Technical Manual
Error Established
symptom D. Function error date
Revised
Content Remote control operation checking method A14
date
① IR &
LED
③
IR LED
②
Checking order to check remote control
Checking order
1. Check IR cable condition between IR & Main board.(Check picture number① and ②.)
2. Check the standby 3.3V on the terminal (③).
3. AS checking the Pre-Amp(IR LED light), the power is in ON condition, an Analog Tester
needle should move slowly, otherwise, it’s defective.
A14
Standard Repair Process Detail Technical Manual
Error Established
symptom D. Function error date
Revised
Content (Magic) Remote/WIFI operation checking method A15
date
Wifi & BT
③
②
Checking order to check motion remote/WIFI
Checking order
1. Check BT/WIFI cable condition between BT/WIFI assy & Main board.
2. Check the 3.3V on the terminal 30 pin.
A15
Standard Repair Process Detail Technical Manual
Error Establishe
symptom
E. Etc d date
Revised
Content How to use the Service remote control date A24
1. How to access the remote control
0 4 1 3
RELEASE
0 4 1 3
A24
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right reserved. Only for training and service
purposes
Standard Repair Process Detail Technical Manual
Error Established
symptom E. Etc date
Revised
Content How to use the Service remote control A17
date
2. 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 Func-
tion)
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 Func-
Access to the Simplink-connected device
tion)
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)
A17
Standard Repair Process Detail Technical Manual
Error Established
symptom E. Etc date
Revised
Content How to use the Service remote control A18
date
B-TOOTH
Connected to Blue-Tooth
(Added function)
Model Nam ex) 32LQ63006LA 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 func-
HDD,USB, external device’s HDD screen is activated
tion)
MENU User function gets activated
EXIT Exit from the current mode
TIME SHIFT (Added func-
Moves forward/backward of recorded contents
tion)
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
A18
Standard Repair Process Detail Technical Manual
Error Establishe
symptom
E. Etc d date
Revised
Content Check items after Main B/D date A27
replacement
Check items after Main B/D(Model Number D/L, White Balance)
1.Press the Service remote control instart Key.
NO.7 Press → button
-Key in the model name and serial number
after checking the ID label on the back
cover.
2.Press the Service remote control ADJ Key.
NO.11 Select White Balance
-Record the R, G, B (GAIN, Cut) value of
the replacement.
After replacing the main board, key in
the record value.
A27
Copyright Ⓒ 2 0 2 3 LG Electronics. Inc. All right reserved. Only for training and service
Standard Repair Process Detail Technical Manual
Error Established
symptom E. Etc date
Revised
Content Adjustment Test pattern - ADJ Key A20
date
You can view 9 types of patterns using the ADJ 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!)
A20
Standard Repair Process Detail Technical Manual
Error Established
symptom F. WIFI /RF date
Revised
Content How to Check Wifi / RF A21
date
WiFi / Magic
Search
2 page
A21
