LG 79UF9500-UA Schematic

Internal Use Only
LED TV
SERVICE MANUAL
CHASSIS : LA53J
MODEL : 79UF9500 79UF9500-UA
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Printed in KoreaP/NO : MFL68704443 (1504-REV00)
LGE Internal Use Only
CONTENTS
CONTENTS .............................................................................................. 2
PRODUCT SAFETY
SERVICING PRECAUTIONS
SPECIFICATION
ADJUSTMENT INSTRUCTION
BLOCK DIAGRAM
EXPLODED VIEW
................................................................................. 3
................................................................... 4
....................................................................................... 6
.............................................................. 14
................................................................................. 26
.................................................................................. 34
SCHEMATIC CIRCUIT DIAGRAM
TROUBLESHOOTING
...............................................................APPENDIX
............................................APPENDIX
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and 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 M 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.
Ω and 5.2 MΩ.
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
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
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 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 mod-
ule 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 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 eas­ily 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 dam­age 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. Alter­natively, 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 expo­sure 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 solder
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 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 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 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 wire­bristle (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 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.
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
IC Remove/Replacement
Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent at 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. 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 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.
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 whenever 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.
Fuse and Conventional Resistor Removal/Replacement
1. Clip each fuse or resistor lead at top of the circuit board hollow stake.
2. Securely crimp the leads of replacement component around notch at stake top.
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement
.
1. Application range
This spec sheet is applied to the LED TV used LA53J chassis
2. Test condition
Each part is tested as below without special notice.
1) Temperature : 25 ºC ± 5 ºC(77±9ºF), CST : 40 ºC±5 ºC
2) Relative Humidity: 65 % ± 10 %
3) Power Voltage Standard input voltage (100~240V@ 50/60Hz) * 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 : UL, CSA, CE, IEC specification
- EMC : FCC, ICES, CE, IEC specification
- Wireless : Wireless HD Specification (Option)
4. Model Specification
No Item Specication Remark
1 Market North America 2 Broadcasting system ATSC / NTSC-M, 64 & 256 QAM 3 Available Channel 1) VHF : 02~13
2) UHF : 14~69
3) DTV : 02-69
4) CATV : 01~158
5) CADTV : 01~158
4 Receiving system Digital : ATSC, DVB-T2(UHD)
Analog : NTSC-M
5 Video Input NTSC-M Rear RCA & Gender 6 Component Input Y/Cb/Cr, Y/ Pb/Pr Rear RCA & Gender 7 HDMI Input HDMI 3 DTV format, Support HDCP2.2/ PC
(HDMI version 1.4)
HDMI 2 DTV format, Support HDCP2.2/ PC
(HDMI version 1.4/2.0)
HDMI 1 DTV format, Support HDCP2.2/ PC
(HDMI version 1.4/2.0)
8 Audio Input Component / A V Audio L/R Input ; Rear
9 SPDIF out(1EA) Optical Audio out Rear (1EA),
10 USB Input(3EA) EMF, DivX HD, For SVC (download) Side JPEG, MP3, DivX HD
Side,
Side, Support ARC only HDMI2
Side,
Component and av use same jack ; Rear
Support USB3.0 only USB1
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
5. Module Specification
No Item Specication Remark
1 Display Screen Device 79” wide color display module LC790EQF-FHF1 (3D,T240) 2 Aspect Ratio 16:9
3 LCD Module 79” QWUXGA TFT LCD LC790EQF-FHF1 (3D,T240) 4 Operating Environment TFT Temp. : 0 ~ 40 deg
Humidity : 0 ~ 85%
ALEF Temp. : 0 ~ 50 deg
Humidity : 20 ~ 90%
5 Storage Environment TFT Temp. : -20 ~ 60 deg
Humidity : 10 ~ 90%
ALEF Temp. : -20 ~ 60 deg
Humidity : 10 ~ 90% 6 Input Voltage AC100 ~ 240V, 50/60Hz 7 1.Power Consumption(Max)
= LCD(Module) + Backlight(LED)
8 LCD Size Maker Inch (H)mm × (V)mm × (D)mm Unit: mm
9 Module Pixel Pitch LGD 79” 1759.4 x 1002.4 x 13.9 LC790EQF-FHF1
Display Colors 1.06 B (10-bit) Except FHD 60Hz models
Surface Treatment Hard coating (2H), Anti-glare
T240 79” 172.3(typ) W LC790EQF-FHF1
16.7 M (8-bit) Only FHD 60Hz models
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LGE Internal Use Only
6. External input format
6.1. 2D Mode
6.1.1. Component input(Y, CB/PB, CR/PR)
No
1. 720*480 15.73 60 13.5135 SDTV ,DVD 480I
2. 720*480 15.73 59.94 13.5 SDTV ,DVD 480I
3. 720*480 31.50 60 27.027 SDTV 480P
4. 720*480 31.47 59.94 27.0 SDTV 480P
5. 1280*720 45.00 60.00 74.25 HDTV 720P
6. 1280*720 44.96 59.94 74.176 HDTV 720P
7. 1920*1080 33.75 60.00 74.25 HDTV 1080I
8. 1920*1080 33.72 59.94 74.176 HDTV 1080I
9. 1920*1080 67.500 60 148.50 HDTV 1080P
10. 1920*1080 67.432 59.94 148.352 HDTV 1080P
Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed
6.1.2. HDMI Input (PC/DTV)
No. Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Proposed
HDMI-PC DDC 1 640*350 31.46 70.09 25.17 EGA Х 2 720*400 31.46 70.08 28.32 DOS O 3 640*480 31.46 59.94 25.17 VESA(VGA) O 4 800*600 37.87 60.31 40.00 VESA(SVGA) O 5 1024*768 48.36 60.00 65.00 VESA(XGA) O 6 1152*864 54.34 60.05 80.00 VESA O 7 1280*1024 63.98 60.02 108.00 VESA (SXGA) O 8 1360*768 47.71 60.01 85.50 VESA (WXGA) O 9 1920*1080 67.5 60 148.5 WUXGA
10 3840*2160 67.5 30 297.00 Only UD Model O 11 3840*2160 56.25 25.00 297.00 Only UD Model O 12 3840*2160 54 24 297.00 Only UD Model O 13 4096*2160 53.95 23.97 297 Only UD Model O 14 4096*2160 54 24 297 Only UD Model O
(Reduced Blanking)
O
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
HDMI-DTV 1 640 * 480 31.469 59.94 25.125 SDTV 480P 2 640 * 480 31.5 60 25.125 SDTV 480P 3 720 * 480 31.5 60 27.027 SDTV 480P 4 720 * 480 31.47 59.94 27.00 SDTV 480P 5 1280*720 45.00 60.00 74.25 HDTV 720P 6 1280*720 44.96 59.94 74.176 HDTV 720P 7 1920*1080 33.75 60.00 74.25 HDTV 1080I 8 1920*1080 33.72 59.94 74.176 HDTV 1080I 9 1920*1080 67.50 60 148.50 HDTV 1080P
10 1920*1080 67.432 59.94 148.35 HDTV 1080P 11 1920*1080 27.000 24.000 74.25 HDTV 1080P 12 1920*1080 26.97 23.976 74.176 HDTV 1080P 13 1920*1080 33.75 30.000 74.25 HDTV 1080P 14 1920*1080 33.71 29.97 74.176 HDTV 1080P 15 3840*2160 67.5 30.00 297.00 UDTV 2160P 16 3840*2160 61.43 29.97 296.703 UDTV 2160P 17 3840*2160 56.25 25.00 297.00 UDTV 2160P 18 3840*2160 54.0 24.00 297.00 UDTV 2160P 19 3840*2160 53.95 23.976 296.703 UDTV 2160P 20 3840*2160 135 59.94 594 UDTV 2160P(HDMI 1,2 only) 21 3840*2160 135 60 594 UDTV 2160P(HDMI 1,2 only) 22 4096*2160 53.95 23.98 296.703 UDTV 2160P 23 24 4096*2160 56.25 25 297 UDTV 2160P 25 4096*2160 61.43 29.97 296.703 UDTV 2160P 26 4096*2160 67.5 30 297 UDTV 2160P 27 4096*2160 135 59.94 594 UDTV 2160P(HDMI 1,2 only) 28 4096*2160 135 60 594 UDTV 2160P(HDMI 1,2only)
4096*2160 54 24 297 UDTV 2160P
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
6.2. 3D Mode
6.2.1. HDMI Input 1.4b (3D supported mode automatically)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock
(MHz)
1 640*480 31.46 / 31.5 59.94/ 60 25.17/25.2 1 Top-and-Bottom
62.93 / 63 59.94/ 60 50.35/50.4 1 Frame packing
31.46 / 31.5 59.94/ 60 50.35/50.4 1 Side-by-side(Full) (SDTV 480P)
2 720*480 31.46 / 31.5 59.94 / 60 27.00/27.03 2,3 Top-and-Bottom
62.93 / 63 59.94 / 60 54/54.06 2,3 Frame packing
31.46 / 31.5 59.94 / 60 54/54.06 2,3 Side-by-side(Full) (SDTV 480P)
3 1280*720 44.96 / 45 59.94 / 60 74.18/74.25 4 Top-and-Bottom
89.91 / 90 59.94 / 60 148.35/148.5 4 Frame packing
44.96 / 45 59.94 / 60 148.35/148.5 4 Side-by-side(Full) (HDTV 720P)
4 1920*1080 33.72 / 33.75 59.94 / 60 74.18/74.25 5 Top-and-Bottom
67.43 / 67.5 59.94 / 60 148.35/148.5 5 Frame packing
33.72 / 33.75 59.94 / 60 148.35/148.5 5 Side-by-side(Full) (HDTV 1080I)
26.97 / 27 23.97 / 24 74.18/74.25 32 Top-and-Bottom
43.94 / 54 23.97 / 24 148.35/148.5 32 Frame packing
26.97 / 27 23.97 / 24 148.35/148.5 32 Side-by-side(Full) (HDTV 1080P)
28.125 25 74.25 33 Top-and-Bottom
56.25 25 148.5 33 Frame packing
28.125 25 148.5 33 Side-by-side(Full) (HDTV 1080P)
33.716 / 33.75 29.976 / 30.00 74.18/74.25 34 Top-and-Bottom
67.432 / 67.5 29.976 / 30.00 148.35/148.5 34 Frame packing
33.716 / 33.75 29.976 / 30.00 148.35/148.5 34 Side-by-side(Full) (HDTV 1080P)
67.43 / 67.5 59.94 / 60 148.35/148.50 16 Top-and-Bottom
VIC 3D input proposed
mode
Side-by-side(half)
Line alternative
Side-by-side(half)
Line alternative
Side-by-side(half)
Line alternative
Side-by-side(half)
Field alternative
Side-by-side(half)
Line alternative
Side-by-side(half)
Line alternative
Side-by-side(half)
Line alternative
Side-by-side(half)
Proposed
Secondary(SDTV 480P) Secondary(SDTV 480P)
Secondary(SDTV 480P) (SDTV 480P)
Secondary(SDTV 480P) Secondary(SDTV 480P)
Secondary(SDTV 480P) (SDTV 480P)
Primary(HDTV 720P) Primary(HDTV 720P)
Primary(HDTV 720P) (HDTV 720P)
Secondary(HDTV 1080I) Primary(HDTV 1080I)
Primary(HDTV 1080I) (HDTV 1080I)
Primary(HDTV 1080P) Primary(HDTV 1080P)
Primary(HDTV 1080P) (HDTV 1080P)
Secondary(HDTV 1080P) Secondary(HDTV 1080P)
Secondary(HDTV 1080P) (HDTV 1080P)
Primary(HDTV 1080P) Secondary(HDTV 1080P)
Primary(HDTV 1080P) (HDTV 1080P)
Primary(HDTV 1080P) Secondary(HDTV 1080P)
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
6.2.2. HDMI 1.4/2.0(3D Supported mode manaually)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock
1. 720*480 31.5 60 27.03 SDTV 480P 2D to 3D, Side by Side(Half),
2. 1280*720 45.00 60.00 74.25 HDTV 720P
3. 1920*1080 33.75 60.00 74.25 HDTV 1080I 2D to 3D, Side by Side(Half),
4. 1920*1080 27.00 24.00 74.25 HDTV 1080P 2D to 3D, Side by Side(Half),
5. 1920*1080 28.12 25 74.25 HDTV 1080P
6. 1920*1080 33.75 30.00 74.25 HDTV 1080P
7. 1920*1080 67.50 60.00 148.5 HDTV 1080P 2D to 3D, Side by Side(Half),
8. 3840*2160 53.95 23.976 296.703 HDTV 2160P
9. 3840*2160 54 24.00 297.00 HDTV 2160P
10. 3840*2160 56.25 25.00 297.00 HDTV 2160P
11. 3840*2160 61.43 29.970 296.703 HDTV 2160P
12. 3840*2160 67.5 30.00 297.00 HDTV 2160P
13. 4096*2160 53.95 23.976 296.703 HDTV 2160P
14. 4096*2160 54 24.00 297.00 HDTV 2160P
15. 4096*2160 56.25 25.00 297.00 HDTV 2160P
16. 4096*2160 61.43 29.970 296.703 HDTV 2160P
17. 4096*2160 67.5 30.00 297.00 HDTV 2160P
18. 3840*2160 135 60 594 HDTV 2160P 2D to 3D, Top & Bottom(half),
19.
4096*2160 135 60 594 HDTV 2160P 2D to 3D, Top & Bottom(half),
(MHz)
Proposed 3D input proposed mode
Top & Bottom, Checker Board, Frame Sequential, Row Interleaving, Column Interleaving
Top & Bottom
Top & Bottom, Checker Board, Row Interleaving, Column Interleaving
Top & Bottom, Checker Board, Single Frame Sequential, Row Interleaving, Column Interleaving
Side by Side(half), Port3 Only
Side by Side(half), Port3 Only
6.2.3. HDMI-PC Input (3D) (3D Supported Mode Manually)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock
1. 1024*768 48.36 60 65 HDTV 768P 2D to 3D,
2. 1360*768 47.71 60 85.5 HDTV 768P 2D to 3D,
3. 1920*1080 67.500 60 148.50 HDTV 1080P 2D to 3D,
4. 3840*2160 4096*2160
5. 3840*2160 4096*2160
6. Others - - - 640*350
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
54 24.00 296.703 HDTV 2160P 2D to 3D,
56.25 25.00 297
67.5 30.00 296.703 135 60 594 HDTV 2160P 2D to 3D,
(MHz)
- 11 -
Proposed 3D input proposed mode
Side by Side(half), Top & Bottom
Side by Side(half), Top & Bottom
Side by Side(half), Top & Bottom, Checker Board, Single Frame Sequential, Row Interleaving, Column Interleaving
Top & Bottom(half), Side by Side(half),
Top & Bottom(half), Side by Side(half), Port3 Only
720*400 640*480 800*600
1152*864
2D to 3D, Side by Side(half), Top & Bottom
LGE Internal Use Only
6.2.4. RF Input(3D supported mode manually)
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
6.2.5. RF Input (3D supported mode automatically)
No. Signal 3D input proposed mode
1 Frame Compatible Side by Side(Half), Top & Bottom
6.2.6. USB, DLNA (Movie) Input (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
interlaced
3 Over 704x480
progressive
4 Over 704x480
progressive
5 Over 2160P - 24/25/30/60 - 2D to 3D, Side by Side(Half),
- - - 2D to 3D, Side by Side(Half), Top & Bottom
- 60 - 2D to 3D, Side by Side(Half), Top & Bottom, Checker Board, Row Interleaving, Column Interleaving, Frame Sequential
- others - 2D to 3D, Side by Side(Half), Top & Bottom, Checker Board, Row Interleaving, Column Interleaving
Top & Bottom, USB Only
6.2.7. USB, DLNA (Photo) Input (3D supported mode manually)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode
1 USB(Photo) - - - 2D to 3D, Side by Side(Half), Top & Bottom
6.2.8. USB, DNLA Input (3D supported mode automatically)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode
1 1080P 33.75 30 - Side by Side(Half), Top & Bottom, Checker Board,
2 2160p 67.5 30 297 MPO(Photo), JPS(Photo)
MPO(Photo)
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LGE Internal Use Only
6.2.9. Component Input(3D supported mode manually)
R
L
R
L
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark
1 1280*720 45.00 60.00 74.25 HDTV 720P 2D to 3D, 2 1280*720 37.500 50 74.25 HDTV 720P 3 1920*1080 33.75 60.00 74.25 HDTV 1080I 4 1920*1080 28.125 50.00 74.25 HDTV 1080I 5 1920*1080 27.00 24.00 74.25 HDTV 1080P 6 1920*1080 28.12 25 74.25 HDTV 1080P 7 1920*1080 33.75 30.00 74.25 HDTV 1080P 8 1920*1080 67.50 60.00 148.5 HDTV 1080P 9 1920*1080 56.250 50 148.5 HDTV 1080P
10 Others - - - SDTV
Side by Side(Half), Top & Bottom
6.2.10. Miracast, Widi (3D supported mode manually)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode
1 1024X768p - 30 / 60 - 2D to 3D, Side by Side(Half), Top & Bottom 2 1280x720p - 30 / 60 ­3 1920X1080p 30 / 60 4 Others - 2D to 3D
**Remark: 3D Input mode
No. Side by Side Top & Bottom Checkerboard Single Frame
Sequential
1
Frame Packing Line
Interleaving
Column
Interleaving
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LGE Internal Use Only
ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet applies to LA53J Chassis applied LED TV all models manufactured in TV factory
2. Specification.
(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 ±5ºC of temperature and 65±10% of relative humidity if
there is no specific designation (4) The input voltage of the receiver must keep 100~240V,
50/60Hz (5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15ºC
▪ 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. Adjustment items
3.1. Main PCB check process
▪ MAC Address Download ▪ ADC adjustment : 480i Comp1, 1920*1080 Comp1 ▪ EDID/DDC download
Above adjustment items can be also performed in Final Assembly if needed. Both Board-level and Final assembly adjustment items can be check using In-Start Menu 1.ADJUST CHECK.
3.2. Final assembly adjustment
▪ White Balance adjustment ▪ RS-232C functionality check ▪ PING Test ▪ Factory Option setting per destination ▪ Ship-out mode setting (In-Stop)
4. Automatic Adjustment
4.1. ADC Adjustment
ADC adjustment is needed to find the optimum black level and gain in Analog-to-Digital device and to compensate RGB
deviation.
4.1.1. Equipment & Condition
(1) USB to RS-232C Jig (2) MSPG-925 Series Pattern Generator(MSPG-925FA,
pattern -65)
- Resolution : 480i Comp1 1080P Comp1
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7±0.1 Vp-p
- Image
4.1.2. Adjustment method
▪ Using USB, adjust items listed in 3.1 in the other shown in
“4.1.3.3”
4.1.3. 3 Adj. protocol
Protocol Command Set ACK Enter adj. mode aa 00 00 a 00 OK00x Source change xb 00 40
xb 00 60 Begin adj. ad 00 10 Return adj. result OKx (Case of Success)
Read adj. data (main)
ad 00 20
(sub )
ad 00 21
Conrm adj. ad 00 99 NG 03 00x (Fail)
End adj. ad 00 90 a 00 OK90x
b 00 OK04x (Adjust 480i, 1080p Comp1 ) b 00 OK06x (Adjust 1920*1080 RGB)
NGx (Case of Fail) (main)
000000000000000000000000007c007b­006dx
(Sub) 000000070000000000000000007c0083 0077x
NG 03 01x (Fail) NG 03 02x (Fail) OK 03 03x (Success)
3.3. Etc.
▪ Ship-out mode ▪ Service Option Default ▪ USB Download(S/W Update, Option, Service only) ▪ ISP Download (Option)
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
Ref.) ADC Adj. RS232C Protocol_V er1.0 Adj. order
▪ aa 00 00 [Enter ADC adj. mode] ▪ xb 00 04 [Change input source to Component1(480i&1080p)] ▪ ad 00 10 [Adjust 480i&1080p Comp1] ▪ xb 00 06 [Change input source to RGB(1024*768)] ▪ ad 00 10 [Adjust 1920*1080 RGB] ▪ aa 00 90 End adj.
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LGE Internal Use Only
4.2. MAC address, ESN, Widevine, HDCP2.0 key D/L
4.2.1. Equipment & Condition
1) Play file: keydownload.exe
4.2.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
4.2.3. Download process
1) Select the download items.
2) Mode check: Online Only
3) Check the test process : DETECT -> MAC -> Widevine
4) Play: START
5) Check of result: Ready, Test, OK or NG
4.2.4. Communication Port connection
1) ) Connect: PCBA Jig -> RS-232C Port == PC -> RS-232C Port
4.3. LAN Inspection
4.3.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig
4.3.2. LAN inspection solution
▪ LAN Port connection with PCB ▪ Network setting at MENU Mode of TV ▪ Setting automatic IP ▪ Setting state confirmation
- If automatic setting is finished, you confirm IP and MAC Address.
4.2.5. Download
1) AJ/JA Models (15Y LCD TV + MAC + Widevine + ESN + HDCP2.0)
4.3.3. LAN PORT INSPECTION (PING TEST)
1) Play the LAN Port Test PROGRAM.
2) Input IP set up for an inspection to Test Program. *IP Number : 12.12.2.2.
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LGE Internal Use Only
4.3.4. 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
4.4. Model name & Serial number Download
4.4.1. Model name & Serial number D/L
▪ Press “Power on” key of service remocon.(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.
* 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) It is impossible to download by bar code scan, so It need Manual download.
a. Press the ‘INSTART’ key of ADJ remote controller. b. Go to the menu ‘7. Model Number D/L’ like below photo. c. Input the Factory model name or Serial number like below
photo.
d. Check the model name INSTART menu -> Factory name
displayed
e. Check the Diagnostics (DTV country only) -> Buyer model
displayed
4.5. WIFI MAC ADDRESS CHECK
4.5.1. Using RS232 Command
Command Set ACK
Transmission [A][l][][Set ID][][20][Cr] [O][K][x] or [N][G]
■ Check the menu on in-start
Method & Notice
A. Serial number D/L is using of scan equipment. B. Setting of scan equipment operated by Manufacturing
Technology Group.
C. 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
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LGE Internal Use Only
5. Manual Adjustment
5.1. ADC adjustment is not needed because of OTP (Auto ADC adjustment)
5.2. EDID
(The Extended Display Identification Data) / DDC (Display Data Channel) download
5.2.1. 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”.
5.2.2. Equipment
▪ Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
▪ Adjust remocon
5.2.3. Download method
1) Press Adj. key on the Adjust remocon, then select “12.EDID D/L”.
By pressing Enter key, enter EDID D/L menu
5.2.4. EDID DATA
▪ Reference
- HDMI1 ~ HDMI3
- HDMI1 ~ HDMI4
- 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 : ‘2015’ -> ‘19
Model Name(Hex): LGTV Checksum(LG TV): Changeable by total EDID data.Vendor Specific(HDMI)
2) Select [Start] button by pressing Enter key, HDMI1 / HDMI2
/ HDMI3 / HDMI4 are Writing and display OK or NG.
5.2.4.1. EDID # DTS HDMI1 (C/S: A0,E5)_6G_UHD Deep Color ON EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
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LGE Internal Use Only
# DTS HDMI1 (C/S: E6 72)_3G_UHD Deep Color OFF EDID Block 0, Bytes 0-12
# DTS HDMI2 (C/S: E6 62)_3G_UHD Deep Color OFF EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
# DTS HDMI2 (C/S: A0,D5)_6G_UHD Deep Color ON EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
EDID Block 1, Bytes 128-255
# DTS HDMI3 (C/S: E6 52) EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
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LGE Internal Use Only
# AC3 HDMI1 (C/S: E7 8B) EDID Block 0, Bytes 0-127
# AC3 HDMI3 (C/S: A1 8A) EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
# AC3 HDMI2 (C/S: E7 7B) EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
EDID Block 1, Bytes 128-255
# AC3 HDMI4 (C/S: E7 5B) EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
# PCM HDMI1 (C/S: F7 FD) EDID Block 0, Bytes 0-127
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LGE Internal Use Only
EDID Block 1, Bytes 128-255
# PCM HDMI2 (C/S: E7 E2) EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
# PCM HDMI4 (C/S: E7 BD) EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
* Checksum (HDMI 1/2/3/4)
Input DTS FFh
(Checksum(6G) HDMI1 A0 E5 E6 72 8B 8B E7 FD HDMI2 A0 D5 E6 62 7B 7B E7 ED HDMI3 E6 52 8A 8A A1 FC
DTS FFh
(Checksum(3G)
PCM FFh
(Checksum)
AC3 FFh
(Checksum)
# PCM HDMI3 (C/S: A1 FC) EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
5.3. Camera Port Inspection
(1) Objective : To check how it connects between Camera and
PCBA normally, and their Function
(2) Test Method : This Inspection is available only Power-Only
Status. i) Push Camera Up ii) Camera’s Preview picture appears on TV Set iii) Push Camera Down
(3) RS-232C Command
RS-232C COMMAND
CMD DATA ID
Ai 00 23 Camera Function Start. Ai 00 24 Camera Function End.
Explanation
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- 20 -
LGE Internal Use Only
5.4. V-COM Adjust
* If TV internal pattern is used, not needed
(*) ONLY FOR GP2 2010year model. GP3 LW Series
[2011year] spec out !
5.5. White Balance Adjustment
5.5.1. Overview
5.5.1.1. 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) Adj. condition: normal temperature
- Surrounding Temperature: 25±5 °C
- Warm-up time: About 5 Min
- Surrounding Humidity: 20% ~ 80%
5.5.2. Equipment
(1) Color Analyzer: CA-210 (LED Module : CH 14) (2) Adj. Computer (During auto adj., RS-232C protocol is
needed) (3) Adjust Remocon (4) Video Signal Generator MSPG-925F 720p/204-Gray
(Model: 217, Pattern: 49) Color Analyzer Matrix should be calibrated using CS-1000
5.5.3. Equipment connection MAP
Color Analyzer
Probe
RS-232C
Pattern Generator
Signal Source
5.5.4. Adj. Command (Protocol)
<Command Format> START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS A STOP
RS-232C
Computer
RS-232C
(1) RS-232C Command used during auto-adj.
RS-232C COMMAND
CMD DATA ID
wb 00 00 Begin White Balance adj. 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 )
Explanation
Ex) wb 00 00 -> Begin white balance auto-adj. wb 00 10 -> Gain adj. ja 00 ff -> Adj. data jb 00 c0 ... ... wb 00 1f -> Gain adj. complete *(wb 00 20(start), wb 00 2f(endc)) -> Off-set adj. wb 00 ff -> End white balance auto adj.
(2) Adjustment Map Applied Model : ALL MODELS
Adj. item Command
(lower caseASCII) CMD1 CMD2 MIN MAX
Cool R Gain j g 00 C0
G Gain j h 00 C0 B Gain j i 00 C0
Medium R Gain j a 00 C0
G Gain j b 00 C0 B Gain j c 00 C0
Warm R Gain j d 00 C0
G Gain j e 00 C0 B Gain j f 00 C0
Data Range (Hex.)
- 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]
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- 21 -
LGE Internal Use Only
5.5.5. Adjustment method
5.5.5.1. Auto WB calibration (1) Set TV in adj. mode using POWER ONNY key (2) Zero calibrate probe then place it on the center of the
Display (3) Connect Cable (RS-232C to USB) (4) Select mode in adj. Program and begin adj. (5) When adj. is complete (OK Sign), check adj. status pre
mode(Warm, Medium, Cool) (6) Remove probe and RS-232C to USB cable to complete adj.
▪ W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need
5.5.6. Reference (White Balance Adj. coordinate and color temperature)
▪ Luminance: 206 Gray ▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
Mode
Cool 0.271 0.270 13,000K 0.0000
Medium 0.283 0.289 9,300K 0.0000
Warm 0.313 0.329 6,500K 0.0000
Coordinate
X Y
Temp uv
5.5.5.2. Manual adj. method
1) Set TV in Adj. mode using POWER ON
2) Zero Calibrate the probe of Color Analyzer, then place it on the center of LCD module within 10cm of the surface..
3) Press ADJ key -> EZ adjust using adj. R/C -> 7. White-
Balance then press the cursor to the right (KEY►).
(When KEY(►) is pressed 216 Gray internal pattern will be
displayed)
4) One of R Gain / G Gain / B Gain should be fixed at 192, and the rest will be lowered to meet the desired value.
5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of color temperature.
** R-fix adjustment Adjust modes (Cool), Fix the R gain to 210 (default data) and change the others (G/B Gain ).
- Adjust the R gain more than 210 ( If G gain or B gain is less
than 0 , R gain can adjust more than 210 ) and change the others ( G/B Gain ). Adjust two modes (Medium / Warm), Fix the one of R/G/B gain to 192 (default data) and decrease the others.
▪ If internal pattern is not available, use RF input. In EZ Adj.
menu 7.White Balance, you can select one of 2 Test-pattern: ON, OFF. Default is inner(ON). By selecting OFF, you can adjust using RF signal in 216 Gray pattern.
▪ Adj. condition and cautionary items
1) Lighting condition in surrounding area
Surrounding lighting should be lower 10 lux. Try to isolate
adj. area into dark surrounding.
2) Probe location
- PDP : Color Analyzer (CA-100, CA-100+, CA210) probe
should be firmly attached to the Module
- LCD : Color Analyzer (CA-210) probe should be within 10cm
and perpendicular of the module surface (80°~ 100°)
3) Aging time
- After Aging Start, Keep the Power ON status during 5
Minutes.
- In case of LCD, Back-light on should be checked using no
signal or Full-white pattern.
▪ Standard color coordinate and temperature using CA-210
(CH 14)
Mode
Cool 0.271±0.002 0.270±0.002 13000K 0.0000
Medium 0.286±0.002 0.289±0.002 9300K 0.0000
Warm 0.313±0.002 0.329±0.002 6500K 0.0000
Coordinate
X Y
Temp uv
5.5.7. EDGE & IOL LED White balance table
▪ Edge & ALEF LED module change color coordinate because
of aging time
▪ apply under the color coordinate table, for compensated
aging time
(Normal line) Edge & ALEF LED White balance table
- gumi(Mar~Dec) & Global Model : (normal line)LGD
webOS
Aging time
(Min)
1 0-2 281 287 295 310 320 342 2 3-5 280 285 294 308 319 340 3 6-9 278 284 292 307 317 339 4 10-19 276 281 290 304 315 336 5 20-35 275 277 289 300 314 332 6 36-49 274 274 288 297 313 329 7 50-79 273 272 287 295 312 327 8 80-119 272 271 286 294 311 326 9 Over 120 271 270 285 293 310 325
Cool Medium Warm
X Y X Y X Y
271 270 285 293 313 329
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- 22 -
LGE Internal Use Only
- gumi Winter table(Jan, Fab) – Gumi producing model use only Model : (normal line) LGD
webOS
Aging time
(Min)
1 0-2 283 292 297 315 322 347 2 3-5 282 290 296 313 321 345 3 6-9 280 288 294 311 319 343 4 10-19 277 284 291 307 316 339 5 20-35 275 279 289 302 314 334 6 36-49 274 275 288 298 313 330 7 50-79 273 272 287 295 312 327 8 80-119 272 271 286 294 311 326 9 Over 120 271 270 285 293 310 325
Cool Medium Warm
X Y X Y X Y
271 270 285 293 313 329
- (Aging Chamver)Edge&ALEF Model : (aging chamber)LGD,
webOS
Aging time
(Min)
1 0-5 280 285 294 308 319 340 2 6-10 276 280 290 303 315 335 3 11-20 272 275 286 298 311 330 4 21-30 269 272 283 295 308 327 5 31-40 267 268 281 291 306 323 6 41-50 266 265 280 288 305 320 7 51-80 265 263 279 286 304 318 8 81-119 264 261 278 284 303 316 9 Over 120 264 260 278 283 303 315
Cool Medium Warm
X Y X Y X Y
271 270 285 293 313 329
5.7. Magic Motion Remocon test
- Equipment : RF Remocon for test, IR-KEY-Code Remocon for test
- You must confirm the battery power of RF-Remocon before
test
(recommend that change the battery per every lot)
- Sequence (test)
a) if you select the ‘start key(OK)’ on the controller, you can
pairing with the TV SET.
b) You can check the cursor on the TV Screen, when select
the ‘OK Key’ on the controller
c) You must remove the pairing with the TV Set by select
‘Mute + OK Key’ on the controller
5.8. 3D function test
(Pattern Generator MSHG-600, MSPG-6100 [SUPPORT HDMI1.4])
* HDMI mode NO. 872 , pattern No.83
1) Please input 3D test pattern like below (HDMI mode NO. 872 , pattern No.83)
2) When 3D OSD appear automatically , then select green button
5.6. Local Dimming Function Check
Step 1) Turn on TV Step 2) At the Local Dimming mode, module Edge Backlight
moving right to left Back light of IOP module moving Step 3) confirm the Local Dimming mode Step 4) Press “exit” Key
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
3) Don’t wear a 3D Glasses, Check the picture like below
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LGE Internal Use Only
5.9. EYE-Q Green Function Inspection
step 1) Turn on the TV.. Step 2) Press 'EYE button' on the adjustment remote-controller. Step 3) Cover 'Eye Q sensor' on the front of set with your hands,
hold it for 6 seconds.
Step 4) Check "the Sensor Data" on the screen, make certain that
Data is below 10. If Data isn’t below 10 in 6 seconds, Eye Q sensor would be bad. You should change Eye Q sensor.
Step 5) Uncover your hands from Eye Q sensor, hold it for 6
seconds.
Step 6) Check "Back Light(xxx)" on the screen, check data
increase . You should change Eye Q sensor
5.10. Ship-out mode check (In-stop)
▪ After final inspection, press In-Stop key of the Adj. R/C and
check that the unit goes to Stand-by mode.
6.2. Checkpoint
(1) Test voltage
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA (2) TEST time: 1 second (3) TEST POINT
- GND Test = POWER CORD GND and SIGNAL CABLE GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL. (4) LEAKAGE CURRENT: At 0.5mArms
7. AUDIO output check
No Item Min Typ Max Unit Remark
1 Audio practical
max Output, L/R (Distortion=10% max Output)
Speaker
2
(8Ω Impedance)
*Measurement condition: (1) RF input: Mono, 1KHz sine wave signal, 100% Modulation (2) CVBS, Component: 1KHz sine wave signal (0.4Vrms) (3) RGB PC: 1KHz sine wave signal (0.7Vrms)
10.0
12.0
8.10
10.8WVrms
10 12 W EQ On
EQ Off AVL Off Clear Voice Off
AVL On Clear Voice On
6. GND and Internal Pressure check
6.1. Method
1) GND & Internal Pressure auto-check preparation
- Check that Power Cord is fully inserted to the SET. (If loose,
re-insert)
2) Perform GND & Internal Pressure auto-check
- Unit fully inserted Power cord, Antenna cable and A/V arrive
to the auto-check process.
- Connect D-terminal to AV JACK TESTER
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST
- If NG, Buzzer will sound to inform the operator.
- If OK, changeover to I/P check automatically. (Remove CORD, A/V form AV JACK BOX)
- Perform I/P test
- If NG, Buzzer will sound to inform the operator.
- If OK, Good lamp will lit up and the stopper will allow the
pallet to move on to next process.
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
Tuner GND is separated.
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LGE Internal Use Only
8. USB S/W Download (optional, Service only)
(1) Put the USB Stick to the USB socket (2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is lower
than that of TV set, it didn’t work. Otherwise USB data is automatically detected.
(3) Show the message “Copying files from memory”
(4) Updating is staring
(5) Updating Completed, The TV will restart automatically
(6) If your TV is turned on, check your updated version and
Tool option.
* If downloading version is more high than your TV have, TV
can lost all channel data. In this case, you have to channel recover. If all channel data is cleared, you didn’t have a DTV/ ATV test on production line.
* After downloading, TOOL OPTION setting is needed again. (1) Push "IN-START" key in service remote controller. (2) Select "Tool Option 1" and Push “OK” button. (3) Punch in the number. (Each model has their number.)
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 25 -
LGE Internal Use Only
BLOCK DIAGRAM
1. LM15U (+ URSA9) Circuit Block Diagram
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- 26 -
LGE Internal Use Only
2. LM15U( + URSA9) I2C Block Diagram
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- 27 -
LGE Internal Use Only
3. LM15U + URSA9 Power Block Diagram
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- 28 -
LGE Internal Use Only
4. Tuner/CI Block Diagram
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- 29 -
LGE Internal Use Only
5. Video/Audio In Block Diagram
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