LG 65UH950V User manual

P/NO : MFL69498101 (1603-REV00)
CHASSIS : UD62M
MODEL : 55/65UH950V 55/65UH950V-ZA
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
LED TV
SERVICE MANUAL
Internal Use Only

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Only for training and service purposes
CONTENTS
CONTENTS .............................................................................................. 2
SAFETY PRECAUTIONS ........................................................................ 3
SERVICING PRECAUTIONS.................................................................... 4
SPECIFICATION ....................................................................................... 6
ADJUSTMENT INSTRUCTION ............................................................... 14
BLOCK DIAGRAM................................................................................... 25
EXPLODED VIEW .................................................................................. 35
DISASSEMBLY....................................................................................... 36
APPENDIXTROUBLE SHOOTING GUIDE ................................................

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Only for training and service purposes
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in
the Exploded View.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance
An isolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this
protects the technician from accidents resulting in personal injury
from electrical shocks.
It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitry that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown,
replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film Resistor,
over 1 W), keep the resistor 10 mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer,
always perform an AC leakage current check on the exposed
metallic parts of the cabinet, such as antennas, terminals, etc., to
be sure the set is safe to operate without damage of electrical
shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an
electrical jumper across the two AC plug prongs. Place the AC
switch in the on position, connect one lead of ohm-meter to the AC
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1 MΩand 5.2 MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage
measurements for each exposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
0.5 mA.
In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
Leakage Current Hot Check circuit
IMPORTANT SAFETY NOTICE
SAFETY PRECAUTIONS

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Only for training and service purposes
SERVICING PRECAUTIONS
CAUTION: Before servicing receivers covered by this service
manual and its supplements and addenda, read and follow the
SAFETY PRECAUTIONS on page 3 of this publication.
NOTE: If unforeseen circumstances create conict between the
following servicing precautions and any of the safety precautions
on page 3 of this publication, always follow the safety precau-
tions. 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 explo-
sion hazard.
2. Test high voltage only by measuring it with an appropriate
high voltage meter or other voltage measuring device (DVM,
FETVOM, etc) equipped with a suitable high voltage probe.
Do not test high voltage by "drawing an arc".
3. Do not spray chemicals on or near this receiver or any of its
assemblies.
4. Unless specied otherwise in this service manual, clean
electrical contacts only by applying the following mixture to the
contacts with a pipe cleaner, cotton-tipped stick or comparable
non-abrasive applicator; 10 % (by volume) Acetone and 90 %
(by volume) isopropyl alcohol (90 % - 99 % strength)
CAUTION: This is a ammable mixture.
Unless specied otherwise in this service manual, lubrication
of contacts in not required.
5. Do not defeat any plug/socket B+ voltage interlocks with which
receivers covered by this service manual might be equipped.
6. Do not apply AC power to this instrument and/or any of its
electrical assemblies unless all solid-state device heat sinks
are correctly installed.
7. Always connect the test receiver ground lead to the receiver
chassis ground before connecting the test receiver positive
lead.
Always remove the test receiver ground lead last.
8. Use with this receiver only the test xtures specied in this
service manual.
CAUTION: Do not connect the test xture ground strap to any
heat sink in this receiver.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid-state) devices can be damaged eas-
ily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES
devices are integrated circuits and some eld-effect transistors
and semiconductor “chip” components. The following techniques
should be used to help reduce the incidence of component dam-
age caused by static by static electricity.
1. Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any electrostatic
charge on your body by touching a known earth ground. Alter-
natively, obtain and wear a commercially available discharg-
ing wrist strap device, which should be removed to prevent
potential shock reasons prior to applying power to the unit
under test.
2. After removing an electrical assembly equipped with ES
devices, place the assembly on a conductive surface such as
aluminum foil, to prevent electrostatic charge buildup or expo-
sure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder
ES devices.
4. Use only an anti-static type solder removal device. Some sol-
der removal devices not classied as “anti-static” can generate
electrical charges sufcient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate
electrical charges sufcient to damage ES devices.
6. Do not remove a replacement ES device from its protective
package until immediately before you are ready to install it.
(Most replacement ES devices are packaged with leads elec-
trically shorted together by conductive foam, aluminum foil or
comparable conductive material).
7. Immediately before removing the protective material from the
leads of a replacement ES device, touch the protective mate-
rial to the chassis or circuit assembly into which the device will
be installed.
CAUTION: Be sure no power is applied to the chassis or cir-
cuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replace-
ment ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your
foot from a carpeted oor can generate static electricity suf-
cient to damage an ES device.)
General Soldering Guidelines
1. Use a grounded-tip, low-wattage soldering iron and appropri-
ate tip size and shape that will maintain tip temperature within
the range or 500 °F to 600 °F.
2. Use an appropriate gauge of RMA resin-core solder composed
of 60 parts tin/40 parts lead.
3. Keep the soldering iron tip clean and well tinned.
4. Thoroughly clean the surfaces to be soldered. Use a mall wire-
bristle (0.5 inch, or 1.25 cm) brush with a metal handle.
Do not use freon-propelled spray-on cleaners.
5. Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal temperature.
(500 °F to 600 °F)
b. Heat the component lead until the solder melts.
c. Quickly draw the melted solder with an anti-static, suction-
type solder removal device or with solder braid.
CAUTION: Work quickly to avoid overheating the circuit
board printed foil.
6. Use the following soldering technique.
a. Allow the soldering iron tip to reach a normal temperature
(500 °F to 600 °F)
b. First, hold the soldering iron tip and solder the strand
against the component lead until the solder melts.
c. Quickly move the soldering iron tip to the junction of the
component lead and the printed circuit foil, and hold it there
only until the solder ows onto and around both the compo-
nent lead and the foil.
CAUTION: Work quickly to avoid overheating the circuit
board printed foil.
d. Closely inspect the solder area and remove any excess or
splashed solder with a small wire-bristle brush.

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Only for training and service purposes
IC Remove/Replacement
Some chassis circuit boards have slotted holes (oblong) through
which the IC leads are inserted and then bent at against the cir-
cuit foil. When holes are the slotted type, the following technique
should be used to remove and replace the IC. When working with
boards using the familiar round hole, use the standard technique
as outlined in paragraphs 5 and 6 above.
Removal
1. Desolder and straighten each IC lead in one operation by
gently prying up on the lead with the soldering iron tip as the
solder melts.
2. Draw away the melted solder with an anti-static suction-type
solder removal device (or with solder braid) before removing
the IC.
Replacement
1. Carefully insert the replacement IC in the circuit board.
2. Carefully bend each IC lead against the circuit foil pad and
solder it.
3. Clean the soldered areas with a small wire-bristle brush.
(It is not necessary to reapply acrylic coating to the areas).
"Small-Signal" Discrete Transistor
Removal/Replacement
1. Remove the defective transistor by clipping its leads as close
as possible to the component body.
2. Bend into a "U" shape the end of each of three leads remain-
ing on the circuit board.
3. Bend into a "U" shape the replacement transistor leads.
4. Connect the replacement transistor leads to the corresponding
leads extending from the circuit board and crimp the "U" with
long nose pliers to insure metal to metal contact then solder
each connection.
Power Output, Transistor 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 pos-
sible to diode body.
2. Bend the two remaining leads perpendicular y to the circuit
board.
3. Observing diode polarity, wrap each lead of the new diode
around the corresponding lead on the circuit board.
4. Securely crimp each connection and solder it.
5. Inspect (on the circuit board copper side) the solder joints of
the two "original" leads. If they are not shiny, reheat them and
if necessary, apply additional solder.
Fuse and Conventional 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 connec-
tions).
1. Carefully remove the damaged copper pattern with a sharp
knife. (Remove only as much copper as absolutely necessary).
2. carefully scratch away the solder resist and acrylic coating (if
used) from the end of the remaining copper pattern.
3. Bend a small "U" in one end of a small gauge jumper wire and
carefully crimp it around the IC pin. Solder the IC connection.
4. Route the jumper wire along the path of the out-away copper
pattern and let it overlap the previously scraped end of the
good copper pattern. Solder the overlapped area and clip off
any excess jumper wire.
At Other 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 con-
nected to the affected copper pattern.
3. Connect insulated 20-gauge jumper wire from the lead of the
nearest component on one side of the pattern break to the
lead of the nearest component on the other side.
Carefully crimp and solder the connections.
CAUTION: Be sure the insulated jumper wire is dressed so the
it does not touch components or sharp edges.

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Only for training and service purposes
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement .
1. Application range
This specification is applied to the LED TV with UD62M
chassis.
2. Requirement for Test
Each part is tested as below without special appointment.
(1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C
(2) Relative Humidity: 65 % ± 10 %
(3) Power Voltage
: Standard input voltage (AC 100-240 V~, 50/60 Hz)
* Standard Voltage of each products is marked by models.
(4) Specification and performance of each parts are followed
each drawing and specification by part number in
accordance with BOM.
(5) The receiver must be operated for about 20 minutes prior
to the adjustment.
3. Test method
(1) Performance: LGE TV test method followed
(2) Demanded other specification
- Safety : CE, IEC specification
- EMC : CE, IEC specification
- Wireless : Wireless HD Specification (Option)
4. Model General Specification
No. Item Specication Remarks
1 Market EU(PAL Market-36Countries)/CIS
+ Morocoo(Africa)
DTV & Analog (Total 37 countries)
DTV (MPEG2/4, DVB-T) : 26 countrie
Germany, Netherland, Switzerland, Hungary, Austria, Slovenia, Bulgaria,
France, Spain, , Belgium, Luxemburg, Greece, Czech, Turkey, Morocco,
Ireland, Latvia, Estonia, Lithuania, Poland, Portugal, Romania, Albania,
Bosnia, Slovakia, Belarus
DTV (MPEG2/4, DVB-T2) :11 countries
UK(Ireland), Sweden, Denmark, Finland, Norway, Ukraine, Kazakhstan,
Russia, Italy, Croatia, Serbia
DTV (MPEG2/4, DVB-C) : 37 countries
Germany, Netherland, Switzerland, Hungary, Austria, Slovenia, Bulgaria,
France, Spain, Italy, Belgium, Russia, Luxemburg, Greece, Czech, Croa-
tia, Turkey, Morocco, Ireland, Latvia, Estonia, Lithuania, Poland, Portugal,
Romania, Albania, Bosnia, Serbia, Slovakia, Belarus, UK, Sweden, Den-
mark, Finland, Norway, Ukraine, Kazakhstan
DTV (MPEG2/4,DVB-S) : 37 countries
Germany, Netherland, Switzerland, Hungary, Austria, Slovenia, Bulgaria,
France, Spain,Belgium, Luxemburg, Greece, Czech, Turkey, Morocco,
Ireland, Latvia, Estonia, Lithuania, Poland, Portugal, Romania, Albania,
Bosnia, Slovakia, Belarus, UK(Ireland), Sweden, Denmark, Finland, Nor-
way, Ukraine, Kazakhstan,Russia, Italy, Croatia, Serbia
Supported satellite : 35 satellites
ABS1 75.0E, AMOS 4.0W, ASIASAT3S 105.5E, ASTRA 19.2E, ASTRA
23.5E, ASTRA 28.2E, ASTRA 4.8E, ATLANTIC BIRD2 8.0W, ATLAN-
TIC BIRD3 5.0W, BADR 26.0E, DIRECTV-1R 56.0E, EUROBIRD 9A
9.0E, EUROBIRD3 33.0E, EUTELSAT 36 A/B 36.0E, EUTELSAT W2A
10.0E, EUTELSAT W3A 7.0E, EUTELSAT7WA 7.3WEUTELSAT 16.0E,
EXPRESS AM1 40.0E, EXPRESS AM3 140.0E, EXPRESS AM33 96.5E,
HELLASSAT 39.0E, HISPASAT 1CDE 30.0WHOTBIRD 13.0E, INTEL-
SAT10&7 68.5E, INTELSAT15 85.2E, INTELSAT1R 50.0W, INTEL-
SAT903 33.5W, INTELSAT904 60.0E, NILESAT 7.0W, NSS12 57.0E,
THOR 0.8W, TURKSAT 42.0E, YAMAL201 90.0E, OTHER

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Only for training and service purposes
No. Item Specication Remarks
2 Broadcasting system
1) Digital TV
- DVB-T/T2
- DVB-C
- DVB-S/S2
2) Analogue TV
- PAL/SECAM B/G/I/D/K
- SECAM L/L’
3 Program coverage
1) Digital TV
- VHF, UHF
- C-Band,Ku-Band
2) Analogue TV
- VHF : E2 to E12
- UHF : E21 to E69
- CATV : S1 to S20
- HYPER : S21 to S47
4 Receiving system Analog : Upper Heterodyne
Digital : COFDM, QAM
► DVB-T
- Guard Interval(Bitrate_Mbit/s)
1/4, 1/8, 1/16, 1/32
- Modulation : Code Rate
QPSK : 1/2, 2/3, 3/4, 5/6, 7/8
16-QAM : 1/2, 2/3, 3/4, 5/6, 7/8
64-QAM : 1/2, 2/3, 3/4, 5/6, 7/8
► DVB-T2 (Model : *L*V*-Z* (T2 only Model))
- Guard Interval(Bitrate_Mbit/s)
1/4, 1/8, 1/16, 1/32, 1/128, 19/128, 19/256,
- Modulation : Code Rate
QPSK : 1/2, 2/5, 2/3, 3/4, 5/6
16-QAM : 1/2, 2/5, 2/3, 3/4, 5/6
64-QAM : 1/2, 2/5, 2/3, 3/4, 5/6
256-QAM : 1/2, 2/5, 2/3, 3/4, 5/6
► DVB-C
- Symbolrate : 4.0Msymbols/s to 7.2Msymbols/s
- Modulation :
16QAM, 64-QAM, 128-QAM and 256-QAM
► DVB-S/S2
- symbolrate
DVB-S2 (8PSK / QPSK) : 2 ~ 45Msymbol/s
DVB-S (QPSK) : 2 ~ 45Msymbol/s
- viterbi
DVB-S mode : 1/2, 2/3, 3/4, 5/6, 7/8
DVB-S2 mode : 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10
5 Video Input (1EA) PAL, SECAM, NTSC4.43
4 System :
PAL, SECAM, NTSC4.43, PAL60
Hybrid Type
6 Head phone out Antenna, AV, Component, HDMI1, HDMI2,
HDMI3, USB1, USB2, USB3
7 Component Input (1EA) Y/Cb/Cr
Y/Pb/Pr
8 HDMI Input (3EA)
HDMI1-DTV
HDMI2-DTV
HDMI3-DTV
9 Audio Input (2EA) Component/AV2/DVI L/R Input
10 SPDIF out (1EA) SPDIF out
11 USB (3EA) EMF, DivX HD, For SVC (download) JPEG, MP3
12 Ethernet Connect(1EA) Ethernet Connect
13 PCMCIA Card slot (1EA) PCMCIA slot

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Only for training and service purposes
5. External Input Support Format
5.1. Component input(Y, PB, PR)
No Resolution H-freq.(kHz) V-freq.(Hz) Pixel clock Proposed
1. 720*480i 15.73 59.94 13.500 SDTV, DVD 480I(525I)
2 720*480i 15.75 60.00 13.514 SDTV, DVD 480I(525I)
3. 720*576i 15.625 50.00 13.500 SDTV, DVD 576I(625I) 50Hz
4 720*480p 31.47 59.94 27.000 SDTV 480P
5 720*480p 31.50 60.00 27.027 SDTV 480P
6 720*576p 31.25 50.00 27.000 SDTV 576P 50Hz
7 1280*720 44.96 59.94 74.176 HDTV 720P
8 1280*720 45.00 60.00 74.250 HDTV 720P
9 1280*720 37.50 50.00 74.250 HDTV 720P 50Hz
10 1920*1080 28.125 50.00 74.250 HDTV 1080I 50Hz,
11 1920*1080 33.72 59.94 74.176 HDTV 1080I
12 1920*1080 33.75 60.00 74.25 HDTV 1080I
13 1920*1080 56.25 50 148.5 HDTV 1080P
14 1920*1080 67.43 59.94 148.5 HDTV 1080P
15 1920*1080 67.50 60.00 148.5 HDTV 1080P
5.2. HDMI Input
5.2.1. DTV mode
No Resolution H-freq.(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Proposed
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 display4 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

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Only for training and service purposes
5.2.2. HDMI Input (PC)
No Resolution H-freq.(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Proposed
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
8 1280*1024 63.981 60.020 109.00 SXGA Support to HDMI-PC
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
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
UHD DEEP COLOUR ON
28 3840*2160 134.865 59.94 593.407 UDTV 2160P When HDMI1,2,3
UHD DEEP COLOUR ON
29 3840*2160 135 60.00 594 UDTV 2160P When HDMI1,2,3
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
UHD DEEP COLOUR ON
36 4096*2160 134.865 59.94 593.407 UDTV 2160P When HDMI1,2,3
UHD DEEP COLOUR ON
37 4096*2160 135 60.00 594 UDTV 2160P When HDMI1,2,3
UHD DEEP COLOUR ON

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Only for training and service purposes
5.3.2. HDMI Input
(1) HDMI 1.4/2.0(3D Supported mode manually)
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode
1 720*480 31.5 60 27.03 SDTV 480P
2D to 3D, Side by Side(Half),
Top & Bottom
2 720*576 31.25 50 27 SDTV 576P
3 1280*720 45.00 60.00 74.25 HDTV 720P
37.500 50 74.25 HDTV 720P
4 1920*1080 33.75 60.00 74.25 HDTV 1080I 2D to 3D, Side by Side(Half),
Top & Bottom
28.125 50.00 74.25 HDTV 1080I
5 1920*1080
27.00 24.00 74.25 HDTV 1080P
2D to 3D, Side by Side(Half),
Top & Bottom
28.12 25 74.25 HDTV 1080P
33.75 30.00 74.25 HDTV 1080P
67.50 60.00 148.5 HDTV 1080P 2D to 3D, Side by Side(Half),
Top & Bottom
56.250 50 148.5 HDTV 1080P
63840*2160
4096*2160
53.95 23.976 296.703
HDTV 2160P 2D to 3D, Top & Bottom,
Side by Side(half)
54 24.00 297.00
56.25 25.00 297.00
61.43 29.970 296.703
67.5 30.00 297.00
73840*2160
4096*2160
112.5 50
594
HDTV 2160P 2D to 3D, Top & Bottom(half),
Side by Side(half),
When HDMI1,2,3
UHD DEEP COLOUR ON
135 60 HDTV 2160P
8
5.3. 3D Mode - DTV/HDMI/USB
5.3.1. RF Input
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode
1 1280*720 37.500 50 74.25 HDTV 720P 2D to 3D, Side by Side, Top & Bottom
2 1920*1080 28.125 50 74.25 HDTV 1080I 2D to 3D, Side by Side, Top & Bottom
(2) HDMI 1.4 (3D Supported mode automatically)
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) VIC 3D input proposed mode Proposed
1 640*480 31.469 / 31.5 59.94/ 60 25.125/25.2 1 Top-and-Bottom
Side-by-side(half)
Secondary(SDTV 480P)
Secondary(SDTV 480P)
62.938/63 59.94/ 60 50.35/50.4 1 Frame packing Secondary(SDTV 480P)
2 720*480 31.469 / 31.5 59.94 / 60 27.00/27.03 2,3 Top-and-Bottom
Side-by-side(half)
Secondary(SDTV 480P)
Secondary(SDTV 480P)
62.938/63 59.94 / 60 54/54.06 2,3 Frame packing Secondary(SDTV 480P)
3 720*576 31.25 50 27 17,18 Top-and-Bottom
Side-by-side(half)
Secondary(SDTV 576P)
Secondary(SDTV 576P)
62.5 50 54 17,18 Frame packing Secondary(SDTV 576P)
4 720*576 15.625 50 27 21 Frame packing Top-and-
Bottom Side-by-side(half)
Secondary(SDTV 576I)
Secondary(SDTV 576I)
Secondary(SDTV 576I)

- 11 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
5 1280*720
37.500 50 74.25 19 Top-and-Bottom
Side-by-side(half)
Primary(HDTV 720P)
Primary(HDTV 720P)
44.96 / 45 59.94 / 60 74.17/74.25 4
75 50 148.5 19 Frame packing Primary(HDTV 720P)
89.91/90 59.94 / 60 148.35/148.5 4
6 1920*1080
28.125 50.00 74.25 20 Top-and-Bottom
Side-by-side(half)
Secondary(HDTV 1080I)
Primary(HDTV 1080I)
33.72 / 33.75 59.94 / 60 74.17/74.25 5 Top-and-Bottom
Side-by-side(half)
Secondary(HDTV 1080I)
Primary(HDTV 1080I)
56.25 50.00 148.5 20 Frame packing Primary(HDTV 1080I)
67.432/67.50 59.94 / 60 148.35/148.5 5 Frame packing Primary(HDTV 1080I)
7 1920*1080
26.97 / 27 23.97 / 24 74.17/74.25 32 Top-and-Bottom
Side-by-side(half)
Primary(HDTV 1080P)
Primary(HDTV 1080P)
28.125 25 74.25 33 Top-and-Bottom
Side-by-side(half)
Secondary(HDTV 1080P)
Secondary(HDTV 1080P)
33.716 / 33.75 29.976 / 30.00 74.18/74.25 34 Top-and-Bottom
Side-by-side(half)
Primary(HDTV 1080P)
Secondary(HDTV 1080P)
43.94/54 23.97 / 24 148.35/148.5 32 Frame packing Primary(HDTV 1080P)
56.25 25 148.5 33 Frame packing Secondary(HDTV 1080P)
67.432 / 67.5 29.976 / 30.00 148.35/148.5 34 Frame packing Primary(HDTV 1080P)
56.250 50 148.5 31 Top-and-Bottom
Side-by-side(half)
Primary(HDTV 1080P)
Secondary(HDTV 1080P)
67.43 / 67.5 59.94 / 60 148.35/148.50 16 Top-and-Bottom
Side-by-side(half)
Primary(HDTV 1080P)
Secondary(HDTV 1080P)
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode
1 1024*768 48.36 60 65 HDTV 768P
2D to 3D,
Side by Side(half),
Top & Bottom
2 1360*768 47.71 60 85.5 HDTV 768P
2D to 3D,
Side by Side(half),
Top & Bottom
3 1920*1080 67.500 60 148.50 HDTV 1080P
2D to 3D,
Side by Side(half),
Top & Bottom
4 3840*2160
54 24.00 297.00
HDTV 2160P
2D to 3D,
Top & Bottom(half),
Side by Side(half)
56.25 25.00 297.00
67.5 30.00 297.00
5 4096*2160 54 24 297.00 HDTV 2160P
2D to 3D,
Top & Bottom(half),
Side by Side(half)
6 Others - - -
640*350
720*400
640*480
800*600
1152*864
2D to 3D,
Side by Side(half),
Top & Bottom
(3) HDMI-PC Input (3D) (3D Supported mode manually)

- 12 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode
1 1280*720 37.5 50 74.25 HDTV 720P 2D to 3D,
Side by Side(half), Top & Bottom
2 1280*720 45.00 60.00 74.25 HDTV 720P 2D to 3D,
Side by Side(half), Top & Bottom
3 1280*720 44.96 59.94 74.176 HDTV 720P 2D to 3D,
Side by Side(half), Top & Bottom
4 1920*1080 33.75 60.00 74.25 HDTV 1080I 2D to 3D,
Side by Side(half), Top & Bottom
5 1920*1080 33.72 59.94 74.176 HDTV 1080I 2D to 3D,
Side by Side(half), Top & Bottom
6 1920*1080 28.12 50 74.25 HDTV 1080I 2D to 3D,
Side by Side(half), Top & Bottom
7 1920*1080 67.500 60 148.50 HDTV 1080P 2D to 3D,
Side by Side(half), Top & Bottom
8 1920*1080 67.432 59.94 148.352 HDTV 1080P 2D to 3D,
Side by Side(half), Top & Bottom
9 1920*1080 27.000 24.000 74.25 HDTV 1080P 2D to 3D,
Side by Side(half), Top & Bottom
10 1920*1080 28.12 25 74.25 HDTV 1080P 2D to 3D,
Side by Side(half), Top & Bottom
11 1920*1080 56.25 50 74.25 HDTV 1080P 2D to 3D,
Side by Side(half), Top & Bottom
12 1920*1080 26.97 23.976 74.176 HDTV 1080P 2D to 3D,
Side by Side(half), Top & Bottom
13 1920*1080 33.75 30.000 74.25 HDTV 1080P 2D to 3D,
Side by Side(half), Top & Bottom
14 1920*1080 33.71 29.97 74.176 HDTV 1080P 2D to 3D,
Side by Side(half), Top & Bottom
(4) Component Input (3D) (3D Supported mode manually)
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode
1 Under 704x480 - - - 2D to 3D
2
Over 704x480
Under 1080P
interlaced
- - - 2D to 3D, Side by Side(Half), Top & Bottom
3Over 704x480
Under 1080P
progressive
- 50 / 60 - 2D to 3D, Side by Side(Half), Top & Bottom
4 - 24 / 25 / 30 - 2D to 3D, Side by Side(Half), Top & Bottom
5 Over 2160P - - - 2D to 3D, Side by Side(Half), Top & Bottom
(5) USB – Movie (3D) (3D supported mode manually)

- 13 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
■ Remark: 3D Input mode
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode
1 - - - - 2D to 3D, Side by Side(Half), Top & Bottom
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode
1 1024*768p - 30/60 -
2D to 3D2 1280*720p - 30/60 -
3 1920*1080p - 30/60 -
4 Others - - - 2D to 3D
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode
1 1080p 33.75 30 74.25 Side by Side(Half), Top & Bottom,
Side by Side(Full), Frame Sequential,
MPO(Photo), JPS(Photo)
2 2160p 67.5 30 297
(6) USB -Photo (3D) (3D supported mode manually)
(7) USB (3D) (3D supported mode automatically)
(8) Miracast, Widi (3D supported mode manually)
NO Side by Side Top & Bottom Single Frame
Sequential
Frame Packing 2D to 3D
1






- 14 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to UD62M Chassis applied
LED TV all models manufactured in TV factory.
2. Designation
(1) Because this is not a hot chassis, it is not necessary to
use an isolation transformer. However, the use of isolation
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
25 °C ± 5 °C of temperature and 65 % ± 10 % of relative
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep AC 100-240
V~, 50/60 Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15 °C.
In case of keeping module is in the circumstance of 0 °C, it
should be placed in the circumstance of above 15 °C for 2
hours.
In case of keeping module is in the circumstance of below
-20 °C, it should be placed in the circumstance of above 15
°C for 3 hours.
[Caution]
When still image is displayed for a period of 20 minutes or
longer (Especially where W/B scale is strong. Digital pattern
13ch and/or Cross hatch pattern 09ch), there can some
afterimage in the black level area.
3. Automatic Adjustment
3.1. MAC address D/L , CI+ key D/L,
Widevine key D/L, ESN D/L,
HDCP1.4 & 2.0 D/L
- Connect: USB port
3.2. Communication Prot connection
- Com 1,2,3,4 and 115200(Baudrate)
Mode check: Online Only
- check the test process
DETECT -> MAC -> CI -> Widevine -> ESN -> HDCP1.4 ->
HDCP 2.0
-.Play : Press Enter key
-.Result: Ready, Test, OK or NG
-.Printer Out (MAC Address Label)
3.3. LAN Inspection
3.3.1. Equipment & Condition
- Each other connection to LAN Port of IP Hub and Jig
3.3.2. LAN inspection solution
- LAN Port connection with PCB
- setting automatic IP
- If you want manual connection, enter Network connection at
MENU Mode of TV. Press Start connection key, then
Network will be connected.
3.3.3. WIDEVINE Key Inspection
- Confirm Key input Data at the “IN START” MENU Mode


- 15 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
3.4. LAN PORT INSPECTION(PING TEST)
3.4.1. Equipment setting
(1) Play the LAN Port Test PROGRAM.
(2) Input IP set up for an inspection to Test Program.
*IP Number : 12.12.2.2
3.4.2. LAN PORT inspection (PING TEST)
(1) Play the LAN Port Test Program.
(2) connect each other LAN Port Jack.
(3) Play Test (F9) button and confirm OK Message.
(4) remove LAN CABLE
3.5. Model name & Serial number Download
3.5.1 Model name & Serial number D/L
- Press “P-ONLY” key of service remote control.
(Baud rate : 115200 bps)
- Connect RS-232C Signal to USB Cable to USB.
- Write Serial number by use USB port.
- Must check the serial number at Instart menu.
3.5.2 Method & notice
(1) Serial number D/L is using of scan equipment.
(2) Setting of scan equipment operated by Manufacturing
Technology Group.
(3) Serial number D/L must be conformed when it is produced
in production line, because serial number D/L is mandatory
by D-book 4.0
Manual Download (Model Name and Serial Number)
If the TV set is downloaded By OTA or Service man,
Sometimes model name or serial number is initialized.
(Not always)
There is impossible to download by bar code scan, so It need
Manual download.
(1) Press the ‘instart’ key of ADJ remote control.
(2) Go to the menu ‘7.Model Number D/L’ like below photo.
(3) Input the Factory model name or Serial number like photo.
(4) Check the model name Instart menu
→Factory name displayed
(5) Check the Diagnostics (DTV country only)
→Buyer model displayed
3.6. CI+ Key checking method
(check the Section 4.2) (Only EU Model)
Check whether the key was downloaded or not at ‘In Start’
menu. (Refer to below).
Check the Download to CI+ Key value in LGset.
3.6.1. check the method of CI+ Key value
a. check the method on Instart menu
b. check the method of RS232C Command
1) into the main ass’y mode (RS232 : aa 00 00)
2) check the key download for transmitted command
(RS232 : ci 00 10)
3) result value
- normally status for download : OKx
- abnormally status for download : NGx
3.6.2. check the method of CI+ Key value (RS232)
(1) into the main ass’y mode (RS232 : aa 00 00)
(2) check the mothed of CI+ key by command
(RS232 : ci 00 20)
(3) result value
i 01 OK 1d1852d21c1ed5dcx
CI+ Key Value
CMD 1 CMD 2 Data 0
A 0 0
CMD 1 CMD 2 Data 0
C I 1 0
CMD 1 CMD 2 Data 0
A A 0 0
CMD 1 CMD 2 Data 0
C I 2 0

- 16 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
3.7. WIFI MAC ADRESS CHECK
3.7.1. Using RS232 Command
3.7.2. check the menu on in-start
4. Manual Adjustment
4.1. ADC adjustment is not needed
because of OTP(Auto ADC adjustment)
4.2. EDID (The Extended Display
Identification Data) /
DDC (Display Data Channel) download
4.2.1. Overview
It is a VESA regulation. A PC or a MNT will display an optimal
resolution through information sharing without any necessity
of user input. It is a realization of “Plug and Play”
4.2.2. Equipment
▪ Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
▪ When TV set is powered on, it will be downloaded
automatically.
4.2.3. Download method
(1) There is no need to download, it is downloaded
automatically when TV set is powered on.
4.2.4. EDID DATA
▪Reference
- HDMI1 ~ HDMI3
- In the data of EDID, bellows may be different by Input mode.
ⓐProduct ID
ⓑSerial No: Controlled on production line.
ⓒMonth, Year: Controlled on production line:
ex) Monthly : ‘01’ → ‘01’, Year : ‘2016’ → ‘1A’
ⓓModel Name(Hex): LGTV
ⓔChecksum(LG TV): Changeable by total EDID data.
ⓕVendor Specific(HDMI)
4.2.4.1. EDID
- DTS EDID (3D)
# HDMI1
(1) HDMI Deep Color OFF (C/S: 0x9F, 0X07)
(2) HDMI Deep Color ON (C/S: 0x9F, 0x5D)
Command Set ACK
Transmission [A][l][][Set ID][][20][Cr] [O][K][x] or [N][G]
0 1 2 3 4 5 6 7 8 9 A B C D E F
0x00 00 FF FF FF FF FF FF 00 1E 6D ⓐ ⓑ
0x01 ⓒ01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
0x02 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
0x03 01 01 01 01 01 01 08 E8 00 30 F2 70 5A 80 B0 58
0x04 8A 00 40 84 63 00 00 1E 02 3A 80 18 71 38 2D 40
0x05 58 2C 45 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
0x06 3E 1E 88 3C 00 0A 20 20 20 20 20 20 ⓓ
0x07 ⓓ01 ⓔ1
0x00 02 03 4E F1 58 61 60 10 1F 04 13 05 14 03 02 12
0x01 20 21 22 15 01 5D 5E 5F 65 66 ⓕ
0x02 ⓕ
0x03 ⓕ02 03 04 01 40 FF F0 28 10 38 10 26 36
0x04 E3 05 C0 00 E5 0E 60 61 65 66 E3 06 07 01 01 1D
0x05 80 18 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E
0x06 66 21 50 B0 51 00 1B 30 40 70 36 00 40 84 63 00
0x07 00 1E 00 00 00 00 00 00 00 00 00 00 00 00 00 ⓔ2

- 17 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
# HDMI2
(1) HDMI Deep Color OFF (C/S: 0x9F, 0XF7)
(2) HDMI Deep Color ON (C/S: 0x9F, 0x4D)
# HDMI3
(1) HDMI Deep Color OFF (C/S: 0x9F, 0XE7)
(2) HDMI Deep Color ON (C/S: 0x9F, 0x3D)
# HDMI4
(1) HDMI Deep Color OFF (C/S: 0x9F, 0XD7)
(2) HDMI Deep Color ON (C/S: 0x9F, 0x2D)

- 18 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Checksum(HDMI 1/2/3)
- AC3 EDID (3D)
# HDMI1
(1) HDMI Deep Color OFF (C/S: 0x9F, 0X10)
(2) HDMI Deep Color ON (C/S: 0x9F, 0x66)
# HDMI2
(1) HDMI Deep Color OFF (C/S: 0x9F, 0X00)
(2) HDMI Deep Color ON (C/S: 0x9F, 0x56)
# HDMI3
(1) HDMI Deep Color OFF (C/S: 0x9F, 0XF0)
Input FFh (Checksum) FFh (Checksum)
Deep Color : OFF Deep Color : ON
HDMI1 0x9F 0x07 0x9F 0x5D
HDMI2 0x9F 0XF7 0x9F 0x4D
HDMI3 0x9F 0XE7 0x9F 0x3D
HDMI4
(only for E6) 0x9F 0XD7 0x9F 0x2D

- 19 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
(2) HDMI Deep Color ON (C/S: 0x9F, 0x46)
Checksum(HDMI 1/2/3)
- PCM EDID (3D)
# HDMI1
(1) HDMI Deep Color OFF (C/S: 0x9F, 0X82)
(2) HDMI Deep Color ON (C/S: 0x9F, 0XD8)
# HDMI2
(1) HDMI Deep Color OFF (C/S: 0x9F, 0X72
(2) HDMI Deep Color ON (C/S: 0x9F, 0xC8)
Input FFh (Checksum) FFh (Checksum)
Deep Color : OFF Deep Color : ON
HDMI1 0x9F 0x10 0x9F 0x66
HDMI2 0x9F 0X00 0x9F 0x56
HDMI3 0x9F 0XF0 0x9F 0x46

- 20 - LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
# HDMI3
(1) HDMI Deep Color OFF (C/S: 0x9F, 0X62)
(2) HDMI Deep Color ON (C/S: 0x9F, 0Xb8)
Checksum(HDMI 1/2/3)
5. White Balance Adjustment
5.1. White Balance Adjustment
5.1.1. Overview
(1) W/B adj. Objective & How-it-works
1) Objective: To reduce each Panel's W/B deviation
2) How-it-works : When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range. In order
to prevent saturation of Full Dynamic range and data,
one of R/G/B is fixed at 192, and the other two is
lowered to find the desired value.
3) Adjustment condition : normal temperature
①Surrounding Temperature : 25 ± 5 °C
②Warm-up time: About 5 Min
③Surrounding Humidity : 20 % ~ 80 %
5.1.2. Equipment
(1)Color Analyzer: CA-210 (LED: CH 14 / OLED: CH 17)
(2) Adj. Computer(During auto adj., RS-232C protocol is
needed)
(3) Adjustment Remote control
(4) ) Video Signal Generator MSPG-925F 720p/216-Gray
(Model:204, Pattern:49)
→ Only when internal pattern is not available
* Color Analyzer Matrix should be calibrated using CS-100.
5.1.3. Equipment connection MAP
5.1.4. Adj. Command (Protocol)
(1) Command Format
START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS A STOP
- LEN: Number of Data Byte to be sent
- CMD: Command
- VAL: FOS Data value
- CS: Checksum of sent data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
▪RS-232C Command used during auto-adj.
Input FFh (Checksum) FFh (Checksum)
Deep Color : OFF Deep Color : ON
HDMI1 0x9F 0x82 0x9F 0XD8
HDMI2 0x9F 0X72 0x9F 0XC8
HDMI3 0x9F 0X62 0x9F 0XB8
jGh¡G
jG
wGnG
୔pG{}GGGGSGG
zGzG
wG
yzTYZYjG
yzTYZYjG
|ziGGyzTYZYjG
RS-232C COMMAND Explanation
CMD ID DATA
wb 00 00 Begin White Balance adj.
wb 00 01 Begin 10% window pattern brightness
check (OLED only)
wb 00 10 Gain adj.(internal white pattern)
wb 00 1f Gain adj. completed
wb 00 20 Offset adj.(internal white pattern)
wb 00 2f Offset adj. completed
wb 00 ff End White Balance adj.
(internal pattern disappears)