LG 40LF6309-T Schematic

Internal Use Only
LED TV
SERVICE MANUAL
CHASSIS : LB51H
MODEL : 40LF63** 40LF63**-T*
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Printed in KoreaP/NO : MFL68702507 (1502-REV00)
CONTENTS
CONTENTS .............................................................................................. 2
SAFETY PRECAUTIONS ........................................................................ 3
SERVICING PRECAUTIONS .................................................................... 4
SPECIFICATION ....................................................................................... 6
ADJUSTMENT INSTRUCTION .............................................................. 12
DISASSEMBLY ........................................................................................ 20
BLOCK DIAGRAM ................................................................................. 21
EXPLODED VIEW .................................................................................. 30
SCHEMATIC CIRCUIT DIAGRAM ........................................... APPENDIX
TROUBLE SHOOTING GUIDE ................................................ APPENDIX
Only for training and service purposes
- 2 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
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 MΩ and 5.2 MΩ. When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer.
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
Only for training and service purposes
- 3 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
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
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 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 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 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.
Only for training and service purposes
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LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
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.
Only for training and service purposes
- 5 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement
.
1. Application range
This specification is applied to the LED TV used LB51H 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
4. Model General Specification
No. Item Specication Remarks
1 Market
2 Television system
3 Channel Storage
4 Receiving system
Asia, Oceania, Africa, Middle East (PAL/DVB Market)
1) Digital TV
- DVB-T/T2
- DVB-C
- DVB-S/S2
2) Analogue TV PAL B/B, PAL B/G, PAL D/K, PAL-I, SECAM B/G, SECAM D/K, NTSC-M
ATV / DVB-T/T2 : 1,500EA DVB-S/S2 : 6,000EA
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 : 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
Only for training and service purposes
- 6 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
No. Item Specication Remarks
5 Video Input RCA PAL, SECAM, NTSC 4 System : PAL, SECAM, NTSC, PAL60
6 Component Input Y/Pb/Pr
7 Head phone out
8 HDMI Input HDMI1-DTV, HDMI2-DTV, HDMI3-DTV
9 Audio Input (3EA) DVI Audio, Component, AV L/R Input.
10 SDPIF out (1EA) SPDIF out
11 USB Input
Antenna, AV1, Component, HDMI1, HDMI2, HDMI3, USB1, USB2, USB3
PC(HDMI Ver. 1.4) Support HDCP
For My Media(Movie/Photo/Music List) or For SVC
5. Component Video Input (Y, Pb, Pr)
No.
1. 720×480 15.73 60.00 SDTV, DVD 480i
2. 720×480 15.63 59.94 SDTV, DVD 480i
3. 720×480 31.47 59.94 480p
4. 720×480 31.50 60.00 480p
5. 720×576 15.625 50.00 SDTV, DVD 625 Line
6. 720×576 31.25 50.00 HDTV 576p
7. 1280×720 45.00 50.00 HDTV 720p
8. 1280×720 44.96 59.94 HDTV 720p
9. 1280×720 45.00 60.00 HDTV 720p
10. 1920×1080 31.25 50.00 HDTV 1080i
11. 1920×1080 33.75 60.00 HDTV 1080i
12. 1920×1080 33.72 59.94 HDTV 1080i
13. 1920×1080 56.250 50 HDTV 1080p
14. 1920×1080 67.5 60 HDTV 1080p
Resolution H-freq(kHz) V-freq(Hz) Pixel clock
Specication
Only for training and service purposes
- 7 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
6. HDMI Input
6.1. DTV mode
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Remarks
1. 640*480 31.469 59.94 SDTV 480P
2. 648*480 31.5 60.00 SDTV 480P
3. 720*480 15.73 59.97 SDTV, DVD 480I(525I)
Spec. out but display4. 720*480 15.75 60 SDTV, DVD 480I(525I)
5. 720*576 15.625 50 SDTV, DVD 576I(625I) 50Hz
6. 720*480 31.47 59.94 SDTV 480P
7. 720*480 31.5 60 SDTV 480P
8. 720*576 31.25 50 SDTV 576P
9. 1280*720 44.96 59.94 HDTV 720P
10. 1280*720 45 60 HDTV 720P
11. 1280*720 37.5 50 HDTV 720P
12. 1920*1080 28.125 50 HDTV 1080I
13. 1920*1080 33.72 59.94 HDTV 1080I
14. 1920*1080 33.75 60.00 HDTV 1080I
15. 1920*1080 26.97 23.976 HDTV 1080P
16. 1920*1080 27.00 24.000 HDTV 1080P
17. 1920*1080 33.71 29.97 HDTV 1080P
18. 1920*1080 33.75 30.00 HDTV 1080P
19. 1920*1080 56.25 50.00 HDTV 1080P
20. 1920*1080 67.432 59.94 HDTV 1080P
21. 1920*1080 67.5 60.00 HDTV 1080P
6.2. PC mode
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Remarks
1 640 x 350 @70Hz 31.468 70.09 EGA
2 720 x 400 @70Hz 31.469 70.08 DOS
3 640 x 480 @60Hz 31.469 59.94 VESA(VGA)
4 800 x 600 @60Hz 37.879 60.31 VESA(SVGA)
5 1024 x 768 @60Hz 48.363 60.00 VESA(XGA)
6 1152 x 864 @60Hz 54.348 60.053 VESA
7 1280 x 1024 @60Hz 63.981 60.020 VESA(SXGA) FHD only
8 1360 x 768 @60Hz 47.712 60.015 VESA(WXGA)
9 1920 x 1080 @60Hz 67.5 60.00 WUXGA(CEA 861D) FHD only
Only for training and service purposes
- 8 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
7. 3D Mode
7.1. HDMI 1.4b (3D supported mode automatically)
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) VIC 3D input proposed mode Proposed
1
640*480
2 62.938/63 59.94/ 60 50.35/50.4 1
3 31.469 / 31.5 59.94/ 60 50.35/50.4 1 Side-by-side(Full) (SDTV 480P)
4
720*480
5 62.938 / 63 59.94 / 60 54/54.06 2,3
6 31.469 / 31.5 59.94 / 60 54/54.06 2,3 Side-by-side(Full) (SDTV 480P)
7
720*576
8 62.5 50 54 17,18
9 31.25 50 54 17,18 Side-by-side(Full) (SDTV 576P)
10
11 75 50 148.5 19
12 37.5 50 148.5 19 Side-by-side(Full) (HDTV 720P)
1280*720
13 44.96 / 45 59.94 / 60 74.18/74.25 4
14 89.91 / 90 59.94 / 60 148.35/148.5 4
15 44.96 / 45 59.94 / 60 148.35/148.5 4 Side-by-side(Full) (HDTV 720P)
16
17 67.432 / 67.50 59.94 / 60 148.35/148.5 5
18 33.72 / 33.75 59.94 / 60 148.35/148.5 5 Side-by-side(Full) (HDTV 1080I)
19 28.125 50.00 74.25 20
20 56.25 50.00 148.5 20
21 28.125 50.00 148.5 20 Side-by-side(Full) (HDTV 1080I)
22 26.97 / 27 23.97 / 24 74.18/74.25 32
23 43.94/54 23.97 / 24 148.35/148.5 32
1920*1080
24 26.97 / 27 23.97 / 24 148.35/148.5 32 Side-by-side(Full) (HDTV 1080P)
25 28.125 25 74.25 33
26 56.24 25 148.5 33
27 28.12 25 148.5 33 Side-by-side(Full) (HDTV 1080P)
28 33.716 / 33.75 29.976 / 30.00 74.18/74.25 34
29 67.432 / 67.5 29.976 / 30.00 148.35/148.5 34
30 33.716 / 33.75 29.976 / 30.00 148.35/148.5 34 Side-by-side(Full) (HDTV 1080P)
31 56.25 50 148.5 31
32 67.432 / 67.5 59.94 / 60 148.35/148.50 16
31.469 / 31.5 59.94/ 60 25.125 1
31.469 / 31.5 59.94 / 60 27.00/27.03 2,3
31.25 50 27 17,18
37.5 50 74.25 19
33.72 / 33.75 59.94 / 60 74.18/74.25 5
Top-and-Bottom Side-by-side(half)
Frame packing Line alternative
Top-and-Bottom Side-by-side(half)
Frame packing Line alternative
Top-and-Bottom Side-by-side(half)
Frame packing Line alternative
Top-and-Bottom Side-by-side(half)
Frame packing Line alternative
Top-and-Bottom Side-by-side(half)
Frame packing Line alternative
Top-and-Bottom Side-by-side(half)
Frame packing Field alternative
Top-and-Bottom Side-by-side(half)
Frame packing Field alternative
Top-and-Bottom Side-by-side(half)
Frame packing Line alternative
Top-and-Bottom Side-by-side(half)
Frame packing Line alternative
Top-and-Bottom Side-by-side(half)
Frame packing Line alternative
Top-and-Bottom Side-by-side(half)
Top-and-Bottom Side-by-side(half)
Secondary(SDTV 480P) Secondary(SDTV 480P)
Secondary(SDTV 480P) (SDTV 480P)
Secondary(SDTV 480P) Secondary(SDTV 480P)
Secondary(SDTV 480P) (SDTV 480P)
Secondary(SDTV 576P) Secondary(SDTV 576P)
Secondary(SDTV 576P) (SDTV 576P)
Primary(HDTV 720P) Primary(HDTV 720P)
Primary(HDTV 720P) (HDTV 720P)
Primary(HDTV 720P) Primary(HDTV 720P)
Primary(HDTV 720P) (HDTV 720P)
Secondary(HDTV 1080I) Primary(HDTV 1080I)
Primary(HDTV 1080I) (HDTV 1080I)
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)
Primary(HDTV 1080P) Secondary(HDTV 1080P)
Only for training and service purposes
- 9 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
7.2. HDMI Input(1.3)
No. Resolution H-freq(kHz) V-freq.(kHz) Pixel clock(MHz) Proposed 3D input proposed mode
1 720*480 31.5 60 27.03 SDTV 480P
2 720*576 31.25 50 27 SDTV 576P
3 1280*720 45.00 60.00 74.25 HDTV 720P
4 1280*720 37.500 50 74.25 HDTV 720P
5 1920*1080 33.75 60.00 74.25 HDTV 1080I
6 1920*1080 28.125 50.00 74.25 HDTV 1080I
7 1920*1080 27.00 24.00 74.25 HDTV 1080P
8 1920*1080 28.12 25 74.25 HDTV 1080P
9 1920*1080 33.75 30.00 74.25 HDTV 1080P
10 1920*1080 67.50 60.00 148.5 HDTV 1080P
11 1920*1080 56.250 50 148.5 HDTV 1080P
2D to 3D, Side by Side(Half), Top & Bot­tom, Checker Board, Frame Sequential, Row Interleaving, Column Interleaving
2D to 3D, Side by Side(Half), Top & Bot­tom
2D to 3D, Side by Side(Half), Top & Bot­tom, Checker Board, Row Interleaving, Column Interleaving
2D to 3D, Side by Side(Half), Top & Bottom, Checker Board, Single Frame Sequential, Row Interleaving, Column Interleaving
7.3. RF Input(3D supported mode manually)
No. Resolution Proposed 3D input proposed mode
1 HD
2 SD
3 SD (ATV : CVBS / SCART) -
1080I
720P
576P
576I
2D to 3D Side by Side(Half) Top & Bottom
7.4. RF Input (3D supported mode automatically)
No. Signal 3D input proposed mode
1 Frame Compatible Side by Side(Half), Top & Bottom
7.5. USB 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
Over 704x480
2
Under 1080P interlaced
Over 704x480
3
Under 1080P progressive
Over 704x480
4
Under 7080P progressive
- - - 2D to 3D, Side by Side(Half), Top & Bottom
- 50 / 60 -
- others -
2D to 3D, Side by Side(Half), Top & Bottom, Checker Board, Row Interleaving, Column Interleaving, Frame Sequential
2D to 3D, Side by Side(Half), Top & Bottom, Checker Board, Row Interleaving, Column Interleaving
7.6. USB (Photo) Input (3D supported mode manually)
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode
1 Under 320x240 - - - 2D to 3D
2 Over 320x240 - - - 2D to 3D, Side by Side(Half), Top & Bottom
Only for training and service purposes
- 10 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
* USB 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 74.25
Side by Side(Half), Top & Bottom, Checker Board, MPO(Photo), JPS(Photo)
7.7. HDMI-PC Input (3D supported mode manually)
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode Proposed
1 1024*768 48.36 60 65
2 1360*768 47.71 60 85.5
2D to 3D, Side by Side(half) Top & Bottom
HDTV 768P
2D to 3D, Side by Side(half), Top &
3 1920*1080 67.500 60 148.50
Bottom, Checker Board, Single Frame Sequential, Row Interleaving, Column
HDTV 1080P
Interleaving
640*350
4 Others - - -
2D to 3D, Side by Side(half) Top & Bottom
720*400 640*480 800*600 1152*864
7.8. Component Input(3D) (3D supported mode manually)
No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock Proposed 3D input proposed mode
1 1280*720 45.00 60.00 74.25 HDTV 720P
2 1280*720 37.500 50 74.25 HDTV 720P
3 1280*720 44.96 59.94 74.176 HDTV 720P
4 1920*1080 33.75 60.00 74.25 HDTV 1080I
5 1920*1080 33.72 59.94 74.176 HDTV 1080I
6 1920*1080 28.12 50 74.25 HDTV 1080I
7 1920*1080 67.500 60 148.50 HDTV 1080P
8 1920*1080 67.432 59.94 148.352 HDTV 1080P
9 1920*1080 27.000 24.000 74.25 HDTV 1080P
10 1920*1080 28.12 25 74.25 HDTV 1080P
11 1920*1080 56.25 50 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
2D to 3D, Side by Side(Half), Top & Bottom
7.9. 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 & Bottom2 1280x720p - 30 / 60 -
3 1920X1080p 30 / 60
4 Others - 2D to 3D
7.10. 3D Input mode
No. Side by Side Top & Bottom Checker board
1
ii.
iii.
Only for training and service purposes
iv.
- 11 -
Single Frame
Sequential
v.
Frame
Packing
vi.
2D to 3D
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LED TV with LB51H chassis.
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.
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.
3.2. LAN Inspection
3.2.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig
3.2.2. 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. Automatic Adjustment
3.1. MAC address D/L, CI+ key D/L, Widevine key D/L, ESN D/L, HDCP14/20 D/L
Connect: USB port Communication Prot connection
▪ Com 1,2,3,4 and 115200(Baudrate)
Mode check: Online Only
▪ Check the test process: DETECT → MAC → ESN→
Widevine → CI → HDCP14 → HDCP20 ▪ Play: Press Enter key ▪ Result: Ready, Test, OK or NG ▪ Printer Out (MAC Address Label)
3.2.3. WIDEVINE key Inspection
- Confirm key input data at the "IN START" MENU Mode.
Only for training and service purposes
- 12 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
3.3. LAN PORT INSPECTION(PING TEST)
Connect SET → LAN port == PC → LAN Port
SET PC
3.3.1. 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
3.3.2. 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.
3.4. Model name & Serial number Download
3.4.1. 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.
3.4.2. 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)
It is impossible to download by bar code scan, so It need
Manual download.
1) Press the "Instart" key of Adjustment remote control.
2) Go to the menu "7.Model Number D/L" like below photo.
3) Input the Factory model name(ex 47LB650V-ZA) or Serial number like photo.
3.5. CI+ Key checking method
- Check the Section 3.1 Check whether the key was downloaded or not at ‘In Start’ menu. (Refer to below).
=> Check the Download to CI+ Key value in LGset.
3.5.1. Check the method of CI+ Key value
(1) Check the method on Instart menu (2) Check the method of RS232C Command
1) Into the main ass’y mode(RS232: aa 00 00)
CMD 1 CMD 2 Data 0
A A 0 0
2) Check the key download for transmitted command (RS232: ci 00 10)
CMD 1 CMD 2 Data 0
C I 1 0
3) Result value
- Normally status for download : OKx
- Abnormally status for download : NGx
3.5.2. Check the method of CI+ key value(RS232)
1) Into the main ass’y mode(RS232: aa 00 00)
CMD 1 CMD 2 Data 0
A A 0 0
2) Check the mothed of CI+ key by command (RS232: ci 00 20)
CMD 1 CMD 2 Data 0
C I 2 0
3) Result value i 01 OK 1d1852d21c1ed5dcx
CI+ Key Value
3.6. WIFI MAC ADDRESS CHECK
(1) Using RS232 Command
Command Set ACK
Transmission [A][I][][Set ID][][20][Cr] [O][K][X] or [NG]
(2) Check the menu on in-start
4) Check the model name Instart menu. → Factory name
displayed. (ex 47LB650V-ZA)
5) Check the Diagnostics.(DTV country only) → Buyer
model displayed. (ex 47LB650V-ZA)
Only for training and service purposes
- 13 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
4. Manual Adjustment
* ADC adjustment is not needed because of OTP(Auto ADC
adjustment)
4.1. EDID DATA
4.1.1. 3D EDID
2) The Model supporting XvYcc
INPUT MODEL NAME(HEX)
HDMI1 E3 05 03 01
HDMI2 E3 05 03 01
HDMI3 E3 05 03 01
4.1.2. 2D EDID
▪ Reference
- HDMI1 ~ HDMI3
- In the data of EDID, bellows may be different by S/W or Input mode.
Product ID
HEX EDID Table DDC Function
0001 0100 Analog
0001 0100 Digital
Serial No: Controlled on production line. Month, Year: Controlled on production line:
ex) Monthly : ‘01’ → ‘01’
Year : ‘2015’ → ‘19’
Model Name(Hex): LGTV
Chassis MODEL NAME(HEX)
LB51H 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
Checksum(LG TV): Changeable by total EDID data.
1
HDMI1 E6 92 D9
HDMI2 E6 82 C9
HDMI3 E6 72 B9
2 2
10bit /none XvYcc 8bit /none XvYcc
Vendor Specific(HDMI)
1) Deep color (module 10bit)
INPUT MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI2 78 03 0C 00 20 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI3 78 03 0C 00 30 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
2) None deep color (module 8bit)
INPUT MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI2 78 03 0C 00 20 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI3 78 03 0C 00 30 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
Colorimetry Data Block(HDMI)
1) The Model not supporting XvYcc
INPUT MODEL NAME(HEX)
HDMI1 E3 05 00 00
HDMI2 E3 05 00 00
HDMI3 E3 05 00 00
▪ Reference
- HDMI1 ~ HDMI3
- In the data of EDID, bellows may be different by S/W or Input mode.
Product ID
HEX EDID Table DDC Function
0001 0100 Analog
0001 0100 Digital
Serial No: Controlled on production line. Month, Year: Controlled on production line:
ex) Monthly : ‘01’ → ‘01’
Year : ‘2015’ → ‘19'
Model Name(Hex): LGTV
Chassis MODEL NAME(HEX)
LB51H 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
Checksum(LG TV): Changeable by total EDID data.
1
HDMI1 40 D4 1B
HDMI2 40 C4 B
HDMI3 40 B4 FB
2 2
10bit /none XvYcc 8bit /none XvYcc
Vendor Specific(HDMI)
1) Deep color (module 10bit)
INPUT MODEL NAME(HEX)
HDMI1 67 03 0C 00 10 00 B8 2D
HDMI2 67 03 0C 00 20 00 B8 2D
HDMI3 67 03 0C 00 30 00 B8 2D
2) None deep color (module 8bit)
INPUT MODEL NAME(HEX)
HDMI1 67 03 0C 00 10 00 80 1E
HDMI2 67 03 0C 00 20 00 80 1E
HDMI3 67 03 0C 00 30 00 80 1E
Only for training and service purposes
- 14 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
4.2. White Balance Adjustment
4.2.1. Overview
▪ 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
1) Surrounding Temperature : 25 °C ± 5 °C
2) Warm-up time: About 5 Min
3) Surrounding Humidity : 20 % ~ 80 %
4) Before White balance adjustment, Keep power on status, don’t power off
4.2.2. 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: Color Analyzer (CA-210) probe should be
within 10 cm and perpendicular of the module surface (80°~ 100°)
(3) Aging time
1) After Aging Start, Keep the Power ON status during 5 Minutes.
2) In case of LCD, Back-light on should be checked using no signal or Full-white pattern.
4.2.3. Equipment
(1) Color Analyzer
: CA-210 (NCG: CH 9 / WCG: CH12 / LED: CH14)
(2) Adjustment Computer(During auto adj., RS-232C protocol
is needed) (3) Adjustment Remote control (4) Video Signal Generator MSPG-925F 720p/204-Gray
(Model: 217, Pattern: 49)
→ Only when internal pattern is not available
▪ Color Analyzer Matrix should be calibrated using CS-1000.
4.2.4. Equipment connection MAP
Color Analyzer
Probe
USB to RS-232C
Signal Source
* If TV internal pattern is used, not needed
4.2.5. Adj. Command (Protocol)
<Command Format>
START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS 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
Computer
RS-232C
* Pattern Generator
▪ RS-232C Command used during auto-adjustment.
RS-232C COMMAND
[CMD ID DATA]
wb 00 00 Begin White Balance adjustment
wb 00 10 Gain adjustment(internal white pattern)
wb 00 1f Gain adjustment completed
wb 00 20 Offset adjustment(internal white pattern)
wb 00 2f Offset adjustment completed
wb 00 ff
End White Balance adjustment (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. completed *(wb 00 20(Start), wb 00 2f(end)) → Off-set adj. wb 00 ff → End white balance auto-adj.
▪ Adj. Map
Applied Model : LB51H Chassis ALL MODELS
Cool
Medium
Warm
Adj. item
R Gain j g 00 C0 172 G Gain j h 00 C0 172 B Gain j i 00 C0 192 R Cut 64 G Cut 64 B Cut 64 R Gain j a 00 C0 192 G Gain j b 00 C0 192 B Gain j c 00 C0 192 R Cut 64 G Cut 64 B Cut 64 R Gain j d 00 C0 192 G Gain j e 00 C0 160 B Gain j f 00 C0 128 R Cut 64
G Cut 64
B Gain 64
Command
(lower caseASCII) CMD1 CMD2 MIN MAX
Data Range
(Hex.)
4.2.5. Adj. method
(1) Auto adj. method
1) Set TV in adj. mode using P-Only key(or POWER ON key)
2) Place optical probe on the center of the display
- It need to check probe condition of zero calibration before adjustment.
3) Connect RS-232C Cable.
4) Select mode in adj. Program and begin a adjustment.
5) When adj. is complete (OK Sign), check adj. status pre
mode. (Cool, Medium, Warm)
6) Remove probe and RS-232C 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.
Default
(Decimal)
Only for training and service purposes
- 15 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
(2) Manual adjustment. 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 10 cm of the surface.
3) Press ADJ key → EZ adjust using adj. R/C → 11. White­Balance then press the cursor to the right(key ►).
(When right key(►) is pressed 204 Gray internal pattern
will be displayed)
4) Adjust Cool modes
i) Fix the one of R/G/B gain to 192 (default data) and
decrease the others. (If G gain is adjusted over 172 and R and B gain less than 192 , Adjust is O.K.)
ii) If G gain is adjusted over 172, Increase G gain by up
to 172, and then increase R gain and G gain same amount of increasing G gain.
iii) If R gain or B gain is over 255, Readjust G gain less
than 172, Conform to R gain is 255 or B gain is 255.
5) Adjust two modes (Medium/Warm) Fix the one of R/G/B gain to 192 (default data) and decrease the others.
6) Adj. is completed, Exit adjust mode using “EXIT” key on Remote control.
▪ Adjustment 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
: Color Analyzer(CA-210) probe should be within 10 cm
and perpendicular of the module surface (80° ~ 100°)
4.2.6. Reference (White balance Adj. coordinate and color temperature)
▪ Luminance : 204 Gray ▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
Mode
Cool 0.271 0.270 13000 K 0.0000
Medium 0.286 0.289 9300 K 0.0000
Warm 0.313 0.329 6500 K 0.0000
▪ Standard color coordinate and temperature using CA-210(CH 14)
Mode
Cool 0.271 ± 0.002 0.270 ± 0.002 13000 K 0.0000
Medium 0.286 ± 0.002 0.289 ± 0.002 9300 K 0.0000
Warm 0.313 ± 0.002 0.329 ± 0.002 6500K 0.0000
Coordinate
x y
Coordinate
x y
Temp ∆uv
Temp ∆uv
4.2.7. LED White balance table
- EDGE LED module change color coordinate because of aging time.
- Apply under the color coordinate table, for compensated aging time.
Only march to December & Global Model: (normal line)LGD (LF5xxx, LF6xxx, LF7xxx, LF8xxx)
NC4.0
Aging
time
(Min)
1 0-2 282 289 297 308 324 348 2 3-5 281 287 296 306 323 346 3 6-9 279 284 294 303 321 333 4 10-19 277 280 292 299 319 339 5 20-35 275 277 290 296 317 336 6 36-49 274 274 289 293 316 333 7 50-79 273 272 288 291 315 331 8 80-119 272 271 287 290 314 330 9 Over 120 271 270 286 289 313 329
Only January to Febuary & Global Model: (normal line)LGD (LF5xxx, LF6xxx, LF7xxx, LF8xxx)
NC4.0
Aging
time
(Min)
1 0-5 286 295 301 314 328 354 2 6-10 284 290 299 309 326 349 3 11-20 282 287 297 306 324 346 4 21-30 279 283 294 302 321 342 5 31-40 276 278 291 297 318 337 6 41-50 274 275 289 294 316 334 7 51-80 273 272 288 291 315 331 8 81-119 272 271 287 290 314 330 9 Over 120 271 270 286 289 313 329
OS Module(AUO, INX, Sharp, CSOT, BOE) (Cool : 13000 K)
NC4.0
spec 271 270 286 289 313 329
target 278 280 293 299 320 339
x y x y x y
Cool Medium Warm
x y x y x y
271 270 286 289 313 329
Cool Medium Warm
x y x y x y
271 270 286 289 313 329
Cool Medium Warm
Only for training and service purposes
- 16 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
4.3. Magic Motion Remote control test
- Results are automatically marked in Instart OSD after through the AP/Magic Remocon Equipment on the line.
4.4. 3D function test(Except Non-3D product)
(Pattern Generator MSHG-600, MSPG-6100[Support HDMI1.4]) * HDMI mode NO. 872 , pattern No.83 (1) Please input 3D test pattern like below.
4.5. HDMI ARC Function Inspection
(1) Test equipment
- Optic Receiver Speaker
- MSHG-600 (SW: 1220 ↑)
- HDMI Cable (for 1.4 version)
(2) Test method
1) Insert the HDMI Cable to the HDMI ARC port from the master equipment (HDMI2)
2) Check the sound from the TV Set
3) Check the Sound from the Speaker or using AV & Optic TEST program (It’s connected to MSHG-600)
(2) When 3D OSD appear automatically, then select green key.
(3) Don't wear a 3D Glasses, check the picture like below.
* Remark: Inspect in Power Only Mode and check SW
version in a master equipment
Only for training and service purposes
- 17 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
4.6. EYE-Q Green Function Inspection
Step 1) Turn on the TV. Step 2) Press 'EYE button' on the adjustment remote-control. 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.
4.7. Wi-Fi Test
Step 1) Turn on TV Step 2) Select Wi-Fi Connection option in Network Menu.
Step 4) The system finds any AP like blow PIC.
Step 5) Select the AP you want to connect.
4.8. LNB voltage and 22KHz tone check
(only for DVB-S/S2 model)
▪ Test method
(1) Set TV in Adj. mode using POWER ON. (2) Connect cable between satellite ANT and test JIG. (3) Press Yellow key(ETC+SWAP) in Adj Remote control to
make LNB on. (4) Check LED light ‘ON’ at 18 V menu. (5) Check LED light ‘ON’ at 22 KHz tone menu. (6) Press Blue key(ETC+PIP INPUT) in Adj Remote control
to make LNB off. (7) Check LED light ‘OFF’ at 18 V menu. (8) Check LED light ‘OFF’ at 22 KHz tone menu.
Step 3) Click Off Button to On in Wi-Fi Connection.
Only for training and service purposes
▪ Test result
(1) After press LNB On key, ‘18 V LED’ and ‘22 KHz tone
LED’ should be ON. (2) After press LNB OFF key, ‘18 V LED’ and ‘22 KHz tone
LED’ should be OFF.
4.9. Option selection per country
4.9.1. Overview
- Option selection is only done for models in Non-EU
4.9.2. Method
(1) Press ADJ key on the Adj. R/C, then select Country Group
Meun.
(2) Select Country Group Code 04 or Country Group EU.
- 18 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
5. Tool Option selection
▪ Method : Press "ADJ" key on the Adjustment remote control,
then select Tool option.
6. Ship-out mode check(In-stop)
▪ After final inspection, press "IN-STOP" key of the Adjustment
remote control and check that the unit goes to Stand-by mode.
9. USB S/W Download(Service only)
(1) Put the USB Stick to the USB socket. (2) Go to General menu then enter to About This TV.
7. GND and Internal Pressure check
7.1. 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.
7.2. Checkpoint
▪ TEST voltage
(1) DQA Test
- GND: 1.5 KV / min at 100 mA
- SIGNAL: 3 KV / min at 100 mA
(2) Mass Production Line Test
- GND: AC 1.5 KV / sec, Cut off current not exceed 100 mA
▪ TEST time: DQA 1 min, Mass Production Line 1 sec ▪ TEST POINT
- GND TEST = POWER CORD GND & SIGNAL CABLE
METAL GND
- Internal Pressure TEST = POWER CORD GND & LIVE &
NEUTRAL
▪ LEAKAGE CURRENT: At 0.5 mArms
(3) Enter the USB EXPERT MODE.
(4) Updating is starting. (5) Updating completed, the TV will restart automatically (6) If your TV is turned on, check your updated version and
Tool option. (explain the Tool option, next stage)
* If downloading version is more high than your TV have,
TV can lost all channel data. In this case, you have to channel recover. if all channel data is cleared, you didn’t have a DTV/ATV test on production line.
* After downloading, have to adjust Tool Option again.
(1) Push "IN-START" key in service remote control. (2) Select "Tool Option 1" and push "OK" key. (3) Punch in the number. (Each model has their number)
8. Audio
No. Item Min Ty p Max Unit Remark
Audio practical max Output, L/R
1.
(Distortion=10%
max Output)
Speaker (8Ω
2. Impedance)
Measurement condition: (1) RF input: Mono, 1 KHz sine wave signal, 100 % Modulation (2) CVBS, Component: 1 KHz sine wave signal 0.5 Vrms
Only for training and service purposes
9 10 12 W
8.10 10.8 Vrms
9 10 12 W
EQ Off AVL Off Clear Voice Off
- 19 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
DISASSEMBLY
■ The method to disassemble IR PCBA
1.
2 latches (both sides of IR PCBA)
2.
After bending latches, push IR PCBA toward upper side.
3.
Disassemble cable from IR PCBA
Only for training and service purposes
- 20 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
1. Overview
BLOCK DIAGRAM
SUB
ASSY
KEY
I2C
IR
WIFI
BLUTOOTH
eMMC
OCP
1.5A
(8GB)
IC101
USB
OCP
Audio AM P
PM
50P
41P
51P
LVDS
EPI
I2C 2
(NTP7515)
IC
50P
I2S Out
I2C 1
USB_WIFI-BT
M14+
HDMI
MUX
OCP
1.5A
1A
CVBS/YPbPr
AMP
TI
DDR3 1600 X 16
(256MB X 2EA)
SYSTEM EEPROM
(256Kb)
I2C 5
A B
DDR3 1600 X 16
(512MB X 2EA)
X_TAL
24MHz
Digital Demod
IF (+/-)
Analog Demod
P_TS
CVBS/SIF
SPDIF OUT
IR / KEY/EYE
ETHERNET
LAN
PHY
X_TAL
Sub Micom
I2C 3
25MHz
(RENESAS
R5F1000G)
X_TAL
32.768KHz
Tuner : I2C 6
D-Demod : I2C 4
Tuner
R
Only for training and service purposes
(MHL)
USB1
USB2
USB3
S I D
E
LNB
E
R
(H)
(ARC)
HDMI1
S I D
HDMI2
HDMI3
E
H/P
(Line Out)
AV/COMP
R E A
- 21 -
LAN
OPTIC
R
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
2. I2C
IC6900
LNB
33Ω
3.3KΩ
+3.3V_NORMAL
TUNER
22Ω
I2C_SDA3
IC103
NVRAM
33Ω
3.3KΩ
+3.3V_NORMAL
2C_SCL3 I
2C_SDA4 I2C_SCL4 I
+3.3V_NORMAL
3.3KΩ
33Ω
2C_SDA5 I2C_SCL5 I
TUNER (Demod)
IC101
M14+
+3.3V_NORMAL
Only for training and service purposes
3.3KΩ
2C_SDA0 I2C_SCL0 I
100 Ω
IC5600
2C_SCL1 I
I2C_SDA1
3.3KΩ
+3.3V_NORMAL
33Ω
IC7700
NTP7515(AMP)
PMIC
+3.3V_NORMAL
3.3KΩ
2C_SDA2 I2C_SCL2 I
33Ω
IC3000
Renesas MICOM
- 22 -
+3.5V_ST
3.3KΩ
YE_I2C_SDA EYE_I2C_SCL E
100Ω
IR / KEY/EYE
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
3. Power
Only for training and service purposes
- 23 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
4. Tuner
Tuner
[+3.3V_S_DEMOD] 26
[+3.3V_TUNER] 1, 11
[+.1.1V_TUNER] 28
[S_SCL] 27 [S_SDA] 30
[SLC] 4
[SDA] 5
[S_Error] 12
[S_SYNC] 14
[S_VALID] 15
[S_MCLK] 16
[S_Data] 17
[S_RESET] 25
[M_DIF_P] 6
[M_DIF_N] 7
S_SIF 9
S_CVBS 8
M_DIF_IFAGC 3
+3.3V_D_Demod
+3.3V_TU
22 Ω
33Ω
+1.1_D_Demod
LNB_TX
+3.3V_TU
3.3K Ω
+3.3V_TU
I2C_SCL4 I2C_SDA4
IC2_SDA6 IC2_SCL6
FE_DEMOD1_TS_ERROR FE_DEMOD1_TS_SYNC FE_DEMOD1_TS_VAL FE_DEMOD1_TS_CLK
/S2_RESET
TUNER_SIF(for T2/C/S)
TU_CVBS(for T2/C/S)
IF_AGC
1.5K Ω
6dB TR AMP
IF_P
IF_N
DMD_SIF_OUT
LPF LPF
SoC_CVBS_OUT
AP6 [SCL3] AR6 [SDA3]
AJ5 [GPIO22]
AG23[SCL5]
AH24 [SDA5]
AH33 [TP_DVB_ERR] AH32 [TP_DVB_SYNC] AH31 [TP_DVB_VAL] AH30 [TP_DVB_CLK]
AG17 [GPIO6]
AK29 [AAD_ADC_OUT]
AL30 [DMD_SIF_OUT]
AK27 [DMD_DAC_OUT]
AL27 [CVBS_IN1]
AK28 [DMD_ADC_INP]
AL28 [DMD_ADC_INN]
AK29[DMD_ADC_SIF]
AL27[CVBS_IN1]
AM29[IFAGC]
M14+
IC101
Only for training and service purposes
- 24 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
5. Video/ Audio
IC101
M14+
SoC Side
Jack Side
[CVBS_IN3/Y2_IN/SOY2_IN]
AV1_CVBS_IN_SOC
COMP2_Y_IN_SOC
COMP2_Y_IN_S0C_S0Y
COMP1_Y/AV1_CVBS
[PR2_IN]
[PB2_IN]
COMP2_Pb__IN_SOC
COMP2_PR_IN_SOC
COMP1_Pb
COMP1_Pr
[AUDA_L_CH3_IN]
[AUDA_R_CH3_IN]
AUAD_L_CH3_IN
AUAD_R_CH3_IN
COMP1/AV1/DVI_L_IN
COMP1/AV1/DVI_R_IN
[SC1_SID, SC1_FB]
[CVBS_IN2]
[PB1_IN/Y1_IN/SOY1_IN/PR1_IN]
[AUDA_L_CH2_IN/AUDA_R_CH2_IN]
TU_CVBS_SOC
TU_CVBS
[CVBS_IN1]
TUNER_SIF
ADC_I_INP
[AAD_ADC-SIF]
[DMD_ADC_INP/DMD_ADC_INN]
ADC_I_INN
TUNER_SIF/IF_P/N
JK3802
Only for training and service purposes
- 25 -
Tuner
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
6. Audio Out
4P WAFER
SPEAKER_L
SPEAKER_R
HEADPHONE /AUDIO OUT
LPF
LPF
AMP_MUTE
IC3000
MICOM
IC5600
Audio AMP
JK3403
HP_LOUT/ROUT
IC6100
TPA6138
H/P Amp
JK3401
[AUDA_SCART_OUTL]
[AUDA_SCART_OUTR]
[AUDA_L_CH3_IN]
[AUDA_R_CH3_IN]
AUAD_R_CH3_IN
AUAD_L_CH3_IN
JK3802
AUD_LRCH
AUD_MASTER_CLK
[DAC_LRCH]
[AUDCLK_OUT]
[AUDA_L_CH2_IN]
[AUDA_R_CH2_IN]
AUD_LRCK
AUD_SCK
[DAC_SCK]
[DAC_LRCK]
I2C_SDA1
I2C_SCL1
AMP_RESET_N
[SCL0]
[SDA0]
[GPIO21]
IC101
M14+
TUNER_SIF
HP_L/ROUT_MAIN
[AUDA_OUTL]
[AAD_ADC-SIF]
SPDIF_OUT
[AUDA_OUTR]
[IEC9580UT]
Tuner
Only for training and service purposes
- 26 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
7. HDMI
WOL_CTL
CEC_REMOTE
HDMI1
HDMI_CEC
Q3001
HDMI2
HDMI3
TMDS Link or MHL Link
RENESAS
MICOM
X-tal
32.768kHz
DDC_SDA_1
DDC_SCL_1
Only for training and service purposes
SPDIF_OUT_A
RC
TMDS Link 8bits
HDMI_HPD
DDC_SCL_2
DDC_SDA_2
TMDS Link 8bits
HDMI_HPD
IC101
M14+
- 27 -
DDC_SCL_4
TMDS Link 8bits
DDC_SDA_4
HDMI_HPD
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
8. Pannel Interface
VGH
6
GMA1/GMA3/GAM9/GMA10/GMA16/GMA18
EPI_LOCK4
LEFT
RIGHT
50Pin X 2
EPI_LOCK8 EPI_LOCK8
VGL
TR/
SWP
Diode
SWN
CTRLP
TR/
Diode
CTRLN
VCOMLFB
VCOMRFB
VGH_ODD/EVEN,VST,GIP_RST
CLK1~CLK6
6
4
6
6
4
PMIC+L/S
TPS65175
PVCOM
EO/GST/GCLK/MCLK 4
I2C
IC101
PANEL_VCC (+12V)
6
H_VDD
VDD
VCC1.8
EPI CH1/2/3/4+/-
8
M14+
GMA4/GMA5/GAM7/GMA12/GMA14/GMA15
2CH
OP AMP
VCOM 1/2 - Top/Bottom
EPI Tx
Block
VGH_ODD/EVEN,VST,GIP_RST
CLK1~CLK6
6
4
6
GMA4/GMA5/GAM7/GMA12/GMA14/GMA15
EPI CH5/6/7/8+/-
8
Only for training and service purposes
- 28 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
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