LG 49LF635T-DB, 49LF6350-DB Schematic

5 (1)
Internal Use Only
LED TV
SERVICE MANUAL
CHASSIS : LT51H
MODEL : 49LF635T/6350 49LF635T/6350-DB
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Printed in KoreaP/NO : MFL68627601 (1412-REV01)
CONTENTS
CONTENTS .............................................................................................. 2
PRODUCT SAFETY ................................................................................. 3
SPECIFICATION ....................................................................................... 6
ADJUSTMENT INSTRUCTION .............................................................. 15
BLOCK DIAGRAM ................................................................................. 22
EXPLODED VIEW .................................................................................. 33
SCHEMATIC CIRCUIT DIAGRAM ............................................APPENDIX
TROUBLESHOOTING ...............................................................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 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.
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 spec sheet is applied to the LED TV used LT51H 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. * Taiwan : 110V 60Hz
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
Only for training and service purposes
- 6 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
4. General Specification
No Item Specication Remark
1. Display Screen Device 42” wide Color Display Module Resolution: 1920*1080
43” wide Color Display Module Resolution: 1920*1080
49” wide Color Display Module Resolution: 1920*1080
60” wide Color Display Module Resolution: 1920*1080
2. Aspect Ratio 16:9 All
3. LCD Module 42" TFT WUXGA LCD
43" TFT WUXGA LCD
49” TFT WUXGA LCD
60” TFT WUXGA LCD
4. Operating Environment TFT Temp. : 0 ~ 40 deg
5. Storage Environment TFT Temp. : -20 ~ 60 deg
6. Input Voltage AC100 ~ 240V, 50/60Hz
7. Power Consumption(Max) = LCD(Module) + Backlight(LED)
FHD M120Hz Direct
FHD 60Hz EdgeLED
Humidity : 0 ~ 85%
Humidity : 10 ~ 90%
42’’ 54.6 W
43’’ 47.6 W LC430EUE-FHM1 [43LF6350-DB]
49’’ 46.97 W LC490EUE-FHM2 [49LF6350-DB]
49’’ 46.97 W LC490EUE-FHM1 [49LF635T-DB]
60’’ 79.8 W NC600EUF-VSCN1 [60LF635T-DB]
LGE SPEC
LC420DUH-MGP2 [42LF650T­DA/42LF6500-DB]
Only for training and service purposes
- 7 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
No Item Specication Remark
8. LCD Module Size Maker Inch (H)mm × (V)mm × (D)mm
LGD 42’’ 952x551.5x26.7 LC420DUH-MGP2 [42LF650T-
Pixel Pitch Maker Inch mm x mm
LGD 42’’ 483.3x483.3 LC420DUH-MGP2 [42LF650T-
Back Light LGD
1.06 B (10-bit)
16.7 M (8-bit)
SHARP 60” EdgeLED NC600EUF-VSCN1 [60LF635T-DB]
43’’ 973..0x565.8x14.0 LC430EUE-FHM1 [43LF6350-DB]
49’’ 1100.8× 631.5× 35.7 LC490EUE-FHM1 [49LF635T-DB]
49’’ LC490EUE-FHM2 [49LF6350-DB]
60” 1330.56× 748.44 NC600EUF-VSCN1 [60LF635T-DB]
43’’ LC430EUE-FHM1 [43LF6350-DB]
49’’ 559.26 ×559.26 LC490EUE-FHM1 [49LF635T-DB]
49’’ LC490EUE-FHM1 [49LF6350-DB]
60” 693 ×693 NC600EUF-VSCN1 [60LF635T-DB]
42’’ EdgeLED
43’’ LC430EUE-FHM1 [43LF6350-DB]
49’’ LC490EUE-FHM1 [49LF635T-DB]
DB/42LF6500-DB]
DB/42LF6500-DB]
LC490EUE-FHM2 [49LF6350-DB]
5. External Input Support Format
5.1. Component (Y, PB, PR)
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed
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 27.00 SDTV 480P
5. 720*576 15.625 50* 13.5 SDTV 576I
6. 720*576 31.25 50* 13.5 SDTV 576P
7. 1280*720 37.5 50* 74.25 HDTV 720P
8. 1280*720 45.00 60.00 74.25 HDTV 720P
9. 1280*720 44.96 59.94 74.176 HDTV 720P
10. 1929*1080 28.125 50* 74.25 HDTV 1080I
11. 1920*1080 33.75 60.00 74.25 HDTV 1080I
12. 1920*1080 33.72 59.94 74.176 HDTV 1080I
13. 1920*1080 56.25 50* 148.5 HDTV 1080P
14. 1920*1080 67.50 60 148.50 HDTV 1080P
15. 1920*1080 67.432 59.94 148.352 HDTV 1080P
16. 1920*1080 27.00 24.00 74.25 HDTV 1080P
17. 1920*1080 26.97 23.976 74.176 HDTV 1080P
18. 1920*1080 33.75 30.00 74.25 HDTV 1080P
19. 1920*1080 33.71 29.97 74.176 HDTV 1080P
Only for training and service purposes
- 8 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
5.2. HDMI : EDID DATA : Refer to adjust specification
5.2.1. DTV mode
No Resolution H-freq(kHz) V-freq.(Hz)
1 640*480 31.47 59.94 27 SDTV 480P
2 640*480 31.5 60.00 27.027 SDTV 480P
3 720*576 15.625 50.00 13.500 SDTV, DVD 576I(625I) 50Hz
4 720*480 31.47 59.94 27 SDTV 480P
5 720*480 31.5 60.00 27.027 SDTV 480P
6 720*576 31.25 50.00 27 SDTV 576P
7 1280*720 44.96 59.94 74.176 HDTV 720P
8 1280*720 45 60.00 74.25 HDTV 720P
9 1280*720 37.5 50.00 74.25 HDTV 720P
10 1920*1080 28.125 50.00 74.25 HDTV 1080I
11 1920*1080 33.72 59.94 74.176 HDTV 1080I
12 1920*1080 33.75 60.00 74.25 HDTV 1080I
13 1920*1080 26.97 23.976 63.296 HDTV 1080P
14 1920*1080 27.00 24.000 63.36 HDTV 1080P
15 1920*1080 33.71 29.97 79.120 HDTV 1080P
16 1920*1080 33.75 30.00 79.20 HDTV 1080P
17 1920*1080 56.25 50.00 148.5 HDTV 1080P
18 1920*1080 67.432 59.94 148.350 HDTV 1080P
19 1920*1080 67.5 60.00 148.5 HDTV 1080P
Pixel
clock(MHz)
Proposed Remark
5.2.2. PC mode
No. Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed Remarks
1 640*350 31.468 70.09 25.17 EGA
2 720*400 31.469 70.08 28.32 DOS
3 640*480 31.469 59.94 25.17 VESA(VGA)
4 800*600 37.879 60.31 40 VESA(SVGA)
5 1024*768 48.363 60.00 65 VESA(XGA)
6 1152*864 54.348 60.053 80.002 VESA(VGA)
7 1360*768 47.712 60.015 84.75 VESA(WXGA)
8 1280*1024 63.981 60.020 108.00 SXGA Only FHD Model
9 1920*1080 67.5 60 158.40 WUXGA
(Reduced Blanking)
(Support to HDMI-PC)
Only FHD Model
Only for training and service purposes
- 9 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
6. 3D Mode
6.1. RF Input (3D supported mode manually)
No Resolution Proposed 3D input proposed mode
1 HD 1080I
720P
2 SD 576P
576I
6.2. RF Input (3D supported mode automatically)
No Signal 3D input proposed mode
1 Frame Compatible Side by Side(Half), Top & Bottom
6.3. HDMI Input 1.3(3D supported mode manually)
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 2D to 3D
3 1920*1080 33.75 60.00 74.25 HDTV 1080I 2D to 3D
4 1920*1080 28.125 50.00 74.25 HDTV 1080I 2D to 3D
5 1920*1080 27.00 24.00 74.25 HDTV 1080P 2D to 3D
6 1920*1080 28.12 25 74.25 HDTV 1080P 2D to 3D
7 1920*1080 33.75 30.00 74.25 HDTV 1080P 2D to 3D
8 1920*1080 56.25 50 148.5 HDTV 1080P 2D to 3D
9 1920*1080 67.50 60.00 148.5 HDTV 1080P 2D to 3D
2D to 3D Side by Side(Half) Top & Bottom
2D to 3D
Side by Side(half), Top & Bottom, Single Frame Sequential
Side by Side(half), Top & Bottom, Single Frame Sequential
Side by Side(half), Top & Bottom
Side by Side(half), Top & Bottom
Side by Side(half), Top & Bottom, Checkerboard
Side by Side(half), Top & Bottom, Checkerboard
Side by Side(half), Top & Bottom, Checkerboard
Side by Side(half), Top & Bottom, Checkerboard, Single Frame Sequential, Row Interleaving, Column Interleaving
Side by Side(half), Top & Bottom, Checkerboard, Single Frame Sequential, Row Interleaving, Column Interleaving
Only for training and service purposes
- 10 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
6.4. HDMI Input 1.4b (3D supported mode automatically)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock
1 640*480 31.469 / 31.5 59.94/ 60 25.175/25.2 1 Top-and-Bottom
2 62.938 / 63 59.94/ 60 50.35/50.4 1 Frame packing
3 31.469 / 31.5 59.94/ 60 50.35/50.4 1 Side-by-side(Full) (SDTV 480P)
4 720*480 31.469 / 31.5 59.94 / 60 27.00/27.03 2,3 Top-and-Bottom
5 62.938 / 63 59.94 / 60 54/54.06 2,3 Frame packing
6 31.469 / 31.5 59.94 / 60 54/54.06 2,3 Side-by-side(Full) (SDTV 480P)
7 720*576
(576p)
8 62.5 50 54 17,18 Frame packing
9 31.25 50 54 17,18 Side-by-side(Full) (SDTV 576P)
10 720 (1440)*576
(576i)
11 31.25 50 54 21 Frame packing
12 15.625 50 54 21 Side-by-side(Full) (SDTV 576I)
13 1280*720 37.5 50 74.25 19 Top-and-Bottom
14 75 50 148.5 19 Frame packing
15 37.5 50 148.5 19 Side-by-side(Full) (HDTV 720P)
16 44.96 / 45 59.94 / 60 74.18/74.25 4 Top-and-Bottom
17 89.91 / 90 59.94 / 60 148.35/148.5 4 Frame packing
18 44.96 / 45 59.94 / 60 148.35/148.5 4 Side-by-side(Full) (HDTV 720P)
31.25 50 27 17,18 Top-and-Bottom
15.625 50 27 21 Top-and-Bottom
(MHz)
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
Proposed
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)
Secondary(SDTV 576I) Secondary(SDTV 576I)
Secondary(SDTV 576I) (SDTV 576I)
Primary(HDTV 720P) Primary(HDTV 720P)
Primary(HDTV 720P) (HDTV 720P)
Primary(HDTV 720P) Primary(HDTV 720P)
Primary(HDTV 720P) (HDTV 720P)
Only for training and service purposes
- 11 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
1920*1080 33.72 / 33.75 59.94 / 60 74.18/74.25 5 Top-and-Bottom
67.432 / 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)
28.125 50.00 74.25 20 Top-and-Bottom
56.25 50.00 148.5 20 Frame packing
28.125 50.00 148.5 20 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)
28.12 25 74.25 33 Top-and-Bottom
56.24 25 148.5 33 Frame packing
28.12 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)
56.25 50 148.5 31 Top-and-Bottom
67.43 / 67.5 59.94 / 60 148.35/148.50 16 Top-and-Bottom
(MHz)
VIC 3D input proposed
mode
Side-by-side(half)
Field 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)
Side-by-side(half)
Proposed
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) (HDTV 1080P)
Secondary(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)
6.5. HDMI-PC 3D 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 2D to 3D,
Side by Side(half) Top & Bottom
2 1360*768 47.71 60 85.5 2D to 3D,
Side by Side(half) Top & Bottom
3 1920*1080 67.500 60 148.50 2D to 3D,
Side by Side(half) Top & Bottom, Checker Board, Single Frame Sequential Row Interleaving, Column Interleaving
4 Others - - - 2D to 3D 640*350
- 12 -
Only for training and service purposes
HDTV 768P
HDTV 768P
HDTV 1080P
720*400 640*480 800*600 1152*864
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
6.6. Component 3D Input (3D supported mode manually)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode Proposed
1 1280*720 37.5 50 74.25 2D to 3D,
Side by Side(half), Top & Bottom
2 1280*720 45.00 60.00 74.25 2D to 3D,
Side by Side(half), Top & Bottom
3 1280*720 44.96 59.94 74.176 2D to 3D,
Side by Side(half) Top & Bottom
4 1920*1080 33.75 60.00 74.25 2D to 3D,
Side by Side(half) Top & Bottom
5 1920*1080 33.72 59.94 74.176 2D to 3D,
Side by Side(half) Top & Bottom
6 1920*1080 28.12 50 74.25 2D to 3D,
Side by Side(half) Top & Bottom
7 1920*1080 67.500 60 148.50 2D to 3D,
Side by Side(half) Top & Bottom
8 1920*1080 67.432 59.94 148.352 2D to 3D,
Side by Side(half) Top & Bottom
9 1920*1080 27.000 24.000 74.25 2D to 3D,
Side by Side(half) Top & Bottom
10 1920*1080 28.12 25 74.25 2D to 3D,
Side by Side(half) Top & Bottom
11 1920*1080 56.25 50 74.25 2D to 3D,
Side by Side(half) Top & Bottom
12 1920*1080 26.97 23.976 74.176 2D to 3D,
Side by Side(half) Top & Bottom
13 1920*1080 33.75 30.000 74.25 2D to 3D,
Side by Side(half) Top & Bottom
14 1920*1080 33.71 29.97 74.176 2D to 3D,
Side by Side(half) Top & Bottom
HDTV 720P
HDTV 720P
HDTV 720P
HDTV 1080I
HDTV 1080I
HDTV 1080I
HDTV 1080P
HDTV 1080P
HDTV 1080P
HDTV 1080P
HDTV 1080P
HDTV 1080P
HDTV 1080P
HDTV 1080P
Only for training and service purposes
- 13 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
6.7. USB Input (3D) (3D supported mode manually)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode Proposed
1 1920*1080 33.75 30 74.25 2D to 3D
Side by Side(Half)*, Top & Bottom*, Checkerboard* Row Interleaving, Column Interleaving (Photo : side by Side(half), Top & Bottom)
HDTV 1080P
6.8. DLNA Input (3D)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 3D input proposed mode Proposed
1 1920*1080 33.75 30 74.25 2D to 3D
Side by Side(Half)*, Top & Bottom*, Checkerboard* Row Interleaving, Column Interleaving (Photo : side by Side(half), Top & Bottom)
HDTV 1080P
Only for training and service purposes
- 14 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied all of the LT51H LED TV models, which produced in manufacture department or similar LG TV factory
2. Notice
(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. But it is
flexible when its factory local problem occurs.
(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 100~220V,
50/60Hz.
(5) Before adjustment, execute Heat-Run for 5 minutes.
▪ After Receive 100% Full white pattern (06CH) then process
Heat-run
(or “8. Test pattern” condition of Ez-Adjust status)
▪ How to make set white pattern
1) Press Power ON button of Service Remocon
2) Press ADJ button of Service remocon. Select “8. Test pattern” and, after select “White” using navigation button, and then you can see 100% Full White pattern.
* In this status you can maintain Heat-Run useless any pattern
generator
* Notice : if you maintain one picture over 20 minutes
(Especially sharp distinction black with white pattern
-13Ch, or Cross hatch pattern – 09Ch) then it can appear image stick near black level.
4. PCB Assembly Adjustment
4.1. MAC Address, ESN Key and Widevine Key download
4.1.1. Equipment & Condition
1) Play file: keydownload.exe
4.1.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
4.1.3. Download process
1) Select the download items.
2) Mode check: Online Only
3) Check the test process
- DETECT -> MAC_WRITE -> ESN_WRITE -> WIDEVINE_ WRITE
4) Play : START
5) Check of result: Ready, Test, OK or NG
4.1.4. Communication Port connection
1) Connect: PCBA Jig -> RS-232C Port == PC -> RS-232C
Port
3. Adjustment items
3.1. PCB Assembly Adjustment
▪ MAC Address / ESN / Widevine / HDCP1.4 / HDCP 2.0
Download
▪ EDID (The Extended Display Identification Data)/DDC
(Display Data Channel) download * If it is necessary, it can adjustment at Manufacture Line You can see set adjustment status at “1. ADJUST CHECK”
of the “In-start menu”
3.2. Set Assembly Adjustment
▪ Color Temperature (White Balance) Adjustment ▪ Using RS-232C ▪ PING Test ▪ Selection Factory output option
Only for training and service purposes
4.1.5. Download
1) 15Y LCD TV+MAC+Widevine+ESN Key+ HDCP1.4 and HDCP2.0
4.1.6. Inspection
- In INSTART menu, check these keys.
- 15 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
4.2. LAN PORT INSPECTION(PING TEST)
4.2.1. 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.
4.2.2. 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
4.3. ADC Adjust => No need at Assembly line because of OPT type
* OTP mode Automatic ADC Calibration. (Internal ADC Calibration) On the manufacture line, OTP is used for ADC Calibration automatically.
* External mode Manual ADC Calibration. When OTP mode is failed, ADC calibration should be “OK” by using External mode.
- If you want re-adjust for ADC.
■ Enter Service Mode by pushing “ADJ” key, ■ Enter Internal ADC mode by pushing “►” key at “9. ADC
Calibration”
Adjustment protocol
Order Command Set response
(1) Inter the Adjustment mode aa 00 00 a 00 OK00x
(2) Change the Source xb 00 40 b 00 OK40x (Adjust 480i Comp1 )
(3) Start Adjustment ad 00 10
(4) Return the Response OKx ( Success condition )
(5) Read Adjustment data ( main)
ad 00 20 ( main ) ad 00 30
(6) Conrm Adjustment ad 00 99 NG 03 00x (Failed condition)
(7) End of Adjustment ad 00 90 d 00 OK90x
(Adjust 1080p Comp1)
NGx ( Failed condition )
(main : component1 480i) 000000000000000000000000007c007b­006dx (main : component1 1080p) 000000070000000000000000007c0083 0077x
NG 03 01x (Failed condition) NG 03 02x (Failed condition) OK 03 03x (Success condition)
Only for training and service purposes
- 16 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
5. Factory Adjustment
5.1. EDID (The Extended Display Identification Data)/DDC (Display Data Channel) Download
● Summary
▪ It is established in VESA, for communication between PC
and Monitor without order from user for building user condition. It helps to make easily use realize “Plug and Play” function. For EDID data write, we use DDC2B protocol.
● Auto Download (No need Writing EDID data in Assembly line)
▪ After Set Tool Option, then TV turn off and on finish auto
download
* EDID data for FHD, 2D, DTS-HD, 8Bit (40/43/49/55LF63
Series) (Model name = LG TV ) .
- HDMI - 1 EDID table ( 0x40, 0x38 )
* EDID data for FHD, 3D, DTS-HD, 8Bit (42/47/55
LF65/67/70/72 Seriese) (Model name = LG TV )
- HDMI - 1 EDID table ( 0xE6, 0xE5 )
-. LVDS supports 8bit ( Total Block 0xA6 :80, 0xA7 : 1E)
1) HDMI 1 Check sum : 0xE6, 0xE5 (Total Block 0xA4 :10)
2) HDMI 2 Check sum : 0xE6, 0xD5 (Total Block 0xA4 :20)
3) HDMI 3 Check sum : 0xE6, 0xC5 (Total Block 0xA4 :30)
* EDID data for FHD, 3D, DTS-HD, 10Bit (60/65/70
LF65/67/70/72 Seriese) (Model name = LG TV )
- HDMI - 1 EDID table ( 0xE6, 0x9E )
-. LVDS supports 8bit ( Total Block 0xA6 :80, 0xA7 : 1E)
1) HDMI 1 Check sum : 0x40, 0x38 (Total Block 0xA4 :10)
2) HDMI 2 Check sum : 0x40, 0x28 (Total Block 0xA4 :20)
3) HDMI 3 Check sum : 0x40, 0x18 (Total Block 0xA4 :30)
* EDID data for FHD, 2D, DTS-HD, 10Bit (60/65LF63 Series )
(Model name = LG TV )
- HDMI - 1 EDID table ( 0x40, 0xF1 )
-.LVDS supports 10bit (support Deep color) , ( Total Block 0xA6 :B8, 0xA7 : 2D)
1) HDMI 1 Check sum : 0x40, 0xF1 (Total Block 0xA4 :10)
2) HDMI 2 Check sum : 0x40, 0xE1 (Total Block 0xA4 :20)
3) HDMI 3 Check sum : 0x40, 0xD1 (Total Block 0xA4 :30)
-. LVDS supports 10bit (support Deep color) , ( Total Block 0xA6 :B8, 0xA7 : 2D)
1) HDMI 1 Check sum : 0xE6, 0x9E (Total Block 0xA4 :10)
2) HDMI 2 Check sum : 0xE6, 0x8E (Total Block 0xA4 :20)
3) HDMI 3 Check sum : 0xE6, 0x7E (Total Block 0xA4 :30)
Only for training and service purposes
- 17 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
5.2. Adjustment Color Temperature (White balance)
● W/B Equipment condition
CA210 : CH 14, Test signal : Inner pattern (80IRE) – LED
Module
CH18 , Test signal : Inner pattern (80IRE) – ALEF
Module
● Above 5 minutes H/run in the inner pattern. (“power on” key of
adjust remote control)
The spec of color temperature and coordinate.
X=0.271
Cool (C50) 13,000k K
All
Medium (0) 9,300k K
Warm (W50) 6,500k K
(1) RS-232C Command used during auto-adj.
RS-232C COMMAND
CMD DATA ID
Wb 00 00 Begin White Balance adj.
Wb 00 ff
End White Balance adj. (internal pattern disappears )
5.2.1. Adjustment method
5.2.2. Auto WB calibration
(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 WB adjustment is completed with OK message,
check adjustment status of pre-set mode (Cool, Medium, Warm)
(6) Remove probe and RS-232C cable.
▪ W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need
(±0.002) Y=0.270 (±0.002)
X=0.286 (±0.002) Y=0.289 (±0.002)
X=0.313 (±0.002) Y=0.329 (±0.002)
Explanation
<Test signal>
- Inner pattern for W/B adjust
- External white
pattern
5.2.3. Manual adjustment
5.2.3.1 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 à EZ adjust using adj. R/C -> 11. White-
Balance then press the cursor to the right (KEY►). When KEY(►) is pressed 206 Gray internal pattern will be
displayed.
(4) Adjust Cool modes
- 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.)
- If G gain is less than 172, Increase G gain by up to 172, and then increase R gain and G gain same amount of increasing G gain.
- 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 controller
5.2.4. Reference (White Balance Adj. coordinate and
color temperature)
(1) Luminance: 204 Gray, 80IRE (2) Standard color coordinate and temperature using CS-1000
(over 26 inch)
5.2.5. Reference (White Balance Adj. coordinate and
color temperature)
(1) Luminance: 204 Gray (2) Standard color coordinate and temperature using CS-1000
(over 26 inch)
Mode
Cool 0.271 0.270 13,000K 0.0000
Medium 0.286 0.289 9,300K 0.0000
Warm 0.313 0.329 6,500K 0.0000
▪ Standard color coordinate and temperature using CA-210
(CH 14) – by aging time
Mode
Cool 0.271±0.002 0.270±0.002 13000K 0.0000
Medium 0.286±0.002 0.289±0.002 9300K -3
Warm 0.313±0.002 0.329±0.002 6500K 0.0000
Coordinate
X Y
Coordinate
X Y
Temp uv
Temp uv
Only for training and service purposes
- 18 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
5.3. Magic Motion remote controller Check (Only LF65/LF70/LF72)
5.3.1 Test equipment
- RF-remote controller for check, IR-KEY-CODE remote controller.
- Check AA battery before test. A recommendation is that a tester change battery every lots.
5.3.2. Test
(1) Make pairing with TV set by pressing “Mute (START) key”
on RCU.
(2) Check a cursor on screen by pressing ‘ENTER” or “OK”
key of RCU
(3) Stop paring with TV set by pressing “VOL+ (STOP) key.
5.4. 3D pattern test
5.4.1. Test equipment
(1) Pattern Generator MSHG-600 or MSPG-6100 (HDMI 1.4
support)
(2) Pattern: HDMI mode (model No. 872, pattern No. 83)
5.4.2. Test method
(1) Input 3D test signal as Fig.1.
5.5. HDMI ARC Function Inspection
5.5.1. Test equipment
- Optic Receiver Speaker
- MSHG-600 (SW: 1220 ↑)
- HDMI Cable (for 1.4 version)
5.5.2. Test method
(1) Insert the HDMI Cable to the HDMI ARC port from the
master equipment (HDMI1)
(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) Press ‘OK” key as a 3D input OSD is shown. (3) Check pattern as Fig2 without 3D glasses. (3D mode
without 3D glasses)
<OK in 3D mode without 3D glasses>
<NG in 3D mode without 3D glasses>
Fig.2
Fig.3
* Remark: Inspect in Power Only Mode and check SW version
in a master equipment
Only for training and service purposes
- 19 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
5.6. Local Dimming Function Check
Green Eye-Check
Sensor Data : 492 BackLight : 100
OK
Step 1) Turn on TV Step 2) Press “TILT” key on the Adj. R/C Step 3) At the Local Dimming mode, module Edge Backlight
moving left to right. Back light of IOP module moving Step 4) confirm the Local Dimming mode. Step 5) Press “exit” key.
5.7. Intelligent Sensor Inspection
Step 1) Turn on the TV set. Step 2) Press “EYE” button on the Adjustment remote
controller.
Step 3) Block the Intelligent Sensor module on the front C/A
about 6 seconds. When the “Sensor Data” is lower
than 20, you can see the “OK” message => If it doesn’t show “OK” message, the Sensor Module is
defected one. You have to replace that with a good one.
6. GND and HI-POT Testing
6.1. GND & HI-POT auto-check preparation Check the connection between set and power cord
(1) Check the POWER CABLE and SIGNAL CABE insertion
condition
6.2. GND & HI-POT auto-check
(1) Pallet moves in the station. (POWER CORD / AV CORD is
tightly inserted) (2) Connect the AV JACK Tester (3) Controller (GWS103-4) on. (4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process (Hi-pot test). (Remove A/V CORD from A/V JACK BOX) (5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next process
automatically
6.3. Check Point
(1) Test voltage 3 Poles : GND: 1.5KV/min at 100mA / SIGNAL: 3KV/min at
100mA (2) TEST time: 1 second (3) TEST POINT 3 Poles : GND Test = POWER CORD GND and SIGNAL
CABLE GND. Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL. (4) LEAKAGE CURRENT: At 0.5mArms
Step 4) After check the “OK” message come out, take out your
hand from the Sensor module
=> Check “Sensor Data” value change from “0” to “300” or
not. If it doesn’t change the value, the sensor is also defected one. You have to replace it.
Caution : Don’t push The INSTOP KEY after completing the
function inspection
Only for training and service purposes
- 20 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
7. Default Service option
7.1. ADC-Set
▪ R-Gain adjustment Value (default 128) ▪ G-Gain adjustment Value (default 128) ▪ B-Gain adjustment Value (default 128) ▪ R-Offset adjustment Value (default 128) ▪ G-Offset adjustment Value (default 128) ▪ B-Offset adjustment Value (default 128)
7.2. White balance. Value
CENTER (DEFAULT)
C50 0 W50
R Gain 192 192 192
G Gain 192 192 192
B Gain 192 192 192
R Cut 64 64 64
G Cut 64 64 64
B Cut 64 64 64
8. USB DOWNLOAD (*.epk file download)
(1) Put the USB Stick to the USB socket (2) Press Menu key, and move General *before 10.2 Step. Set USB Expert Mode : Enabled IN START > System 3 > USB Expert Mode
(3) Press “number key 7” Press 7 times.
Only for training and service purposes
- 21 -
(4) Select download file (epk file)
(5) After download is finished, remove the USB stick. ( it will be
auto-reboot )
(6) Press “IN-START” key of ADJ remote control, check the
S/W version
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
BLOCK DIAGRAM
Audio AMP
(NTP7515)
IC101
M14+
Digital Dem od
IF (+/-)
USB1
OPT IC
LAN
DDR3 1600 X 16
(512MB X 2EA)
HDMI1
HDMI2
HDMI3
Analog Demod
SYSTEM EEPR OM
(256Kb)
HDMI
MUX
USB2
USB3
41P
51P
eMMC
(4GB)
Sub Micom
(RENESAS
R5F1000G)
DDR3 1600 X 16
(256MB X 2EA)
P_TS
50P
50P
X_TAL
24MHz
A B
X_TAL
32.768KHz
I2S O ut
I2C 1
EPI
I2C 2
LVDS
USB
I2C 5
H/P (Line Out)
AV/COMP
D-Demod : I2C 4
OCP
1.5A
OCP
1.5A
(ARC)
REA
R
SID
E
SID
E
REA
R
(H)
AMP
TI
CVBS/YPbPr
SPDIF OUT
ETHERNET
I2C 3
LOCAL DIMMING
BLUTOOTH
IR / KEY/EYE
PM
IC
WIFI
SUB
ASSY
I2C 2
IR
KEY
USB_WIFI-BT
(IR Bla Ready)
Tuner : I2C 6
LAN
PHY
OCP
1A
(MHL)
X_TAL
25MHz
I2C
CVBS/SIF
Tuner
LNB
1. M14+ Block Diagram
Only for training and service purposes
- 22 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
33Ω
+3.3V_NORMAL
3.3K Ω
TUNER
3.3K Ω
+3.3V_NORMAL
I 2C_SDA3
I2 C_SCL3
I 2C_SDA2
I2 C_SCL2
IC6900
LNB
33Ω
22Ω
33Ω
+3.3V_NORMAL
3.3K Ω
IC7700
PMIC
I 2C_SDA1
I2 C_SCL1
+3.3V_NORMAL
3.3K Ω
IC5600
NTP7515(AMP)
I 2C_SDA0
I2 C_SCL0
100 Ω
IC103
NVRAM
3.3K Ω
+3.3V_NORMAL
I 2C_SDA4
I2 C_SCL4
33Ω
I 2C_SDA5
I2 C_SCL5
TUNER (Demod)
3.3K Ω
+3.3V_NORMAL
33Ω
IC101
M14+
IR / KEY/ EYE
100Ω
+3.5V_ST
3.3K Ω
IC3000
Renesas MICOM
EYE_I2C_SDA
EYE_I2C_SCL
2. M14+ I2C Block Diagram
Only for training and service purposes
- 23 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
3. Power Block Diagram
Only for training and service purposes
- 24 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
IC101
M14+
Tuner
AJ5 [GPIO22]
AG23[SCL5]
AH24 [SDA5]
[SLC] 4
[SDA] 5
[+3.3V_TUNER] 1, 11
[+.1.2V_TUNER] 28
S_SIF 9
S_CVBS 8
[S_Error] 12
[S_SYNC] 14
[S_VALID] 15
[S_MCLK] 16
[S_Data] 17
AH33 [TP_DVB_ERR]
AH32 [TP_DVB_SYNC]
AH31 [TP_DVB_VAL]
AH30 [TP_DVB_CLK]
[S_RESET] 25
AG17 [GPIO6]
[+3.3V_S_DEMOD] 26
[S_SCL] 27
[S_SDA] 30
AP6 [SCL3]
AR6 [SD A3]
AK29[DMD_ADC_SIF]
AL27[CVBS_IN1]
IC2_SCL6
IC2_SDA6
FE_DEMOD1_TS_ERROR
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL
FE_DEMOD1_TS_CLK
/TU_RESET1
I2C_SCL4
I2C_SDA4
+3.3V_TU
3.3K Ω
+1.2_D_Demod
+3.3V_TU
+3.3V_D_Demod
TUNER_SIF
TU_CVBS
33Ω
1.5K Ω
+3.3V_TU
22 Ω
4. Tuner Block Diagram (TDJM-B301F/K301F Tuner)
Only for training and service purposes
- 25 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
IC101
M14+
Tuner
AG23[SCL5]
AH24 [SDA5]
[SLC] 4
[SDA] 5
[+3.3V_TUNER] 1
AP6 [SCL3]
AR6 [SD A3]
IC2_SCL6
IC2_SDA6
+3.3V_TU
33Ω
1.5K Ω
+3.3V_TU
S_SIF 9
S_CVBS 8
AK29[DMD_ADC_SIF]
AL27[CVBS_IN1]
TUNER_SIF
TU_CVBS
[M_DIF_P] 6
[M_DIF_N] 7
AK28 [DMD_ADC_INP]
AL28 [DMD_ADC_INN]
AM29[IFAGC]
IF_P
IF_N
IF_AGC
M_DIF_IFAGC 3
5. Tuner Block Diagram (TDJK-T301F Tuner)
Only for training and service purposes
- 26 -
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
IC101
M14+
[CVBS_IN3/Y2_IN/SOY2_IN]
Tuner
Jack Side
SoC Side
JK3802
SCART
JK4600
COMP1_Y/AV1_CVBS
COMP1_Pb
COMP1_Pr
COMP1/AV1/DVI_L_IN
COMP1/AV1/DVI_R_IN
AV1_CVBS_IN_SOC
COMP2_Y_IN_SOC
COMP2_Y_IN_S0C _S0Y
COMP2_Pb__IN _SOC
[PB2_IN]
[PR2_IN]
[AUDA_L_CH3_IN]
COMP2_PR_IN _SOC
AUAD_L_CH3_IN
[AUDA_R_CH3_IN]
AUAD_R_CH3_IN
SC_CVBS_IN
SC_ID/FB
SC_R/G/B
SC_CVBS_IN _SOY
SC_L/R_IN
TU_CVBS
TUNER_SIF/IF_P/N
[CVBS_IN2]
SC_CVBS_IN _SOC
SC_ID_SOC
SC_FB_SOC
[SC1_SID, SC1_FB]
[PB1_IN/Y1_IN/SOY1_IN/PR1_IN]
[AUDA_L_CH2_IN/AUDA_R_CH2_IN]
COMP1_PB_IN _SOC
COMP1_Y_IN_SOC
COMP1_Y_IN_SOC _SOY
COMP1_PR_IN _SOC
AUAD_L_CH2_IN
AUAD_R_CH2_IN
[CVBS_IN1]
[DMD_ADC_INP/DMD_ADC_INN]
TU_CVBS_SOC
TUNER_SIF
ADC_I_INP
ADC_I_INN
[AAD _AD C -SIF]
6. Video/Audio In Block Diagram
Only for training and service purposes
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
- 27 -
SPDIF_OUT
IC5600
Audio AMP
LPF
AUAD_L_CH3_IN
AUAD_R_CH3_IN
[IEC9580UT]
Tuner
SCART
DTV/MNT_L/R_OUT
[AUDA_SCART_OUTL]
[AUDA_SCART_OUTR]
SC_L/R_IN
SCART_L/Rout
AUD_LRCH
HP_L/ROUT_MAIN
HEAD PHONE
LPF
4P WAFER
[AUDA_OUTL]
[AUDA-OUTR]
IC101
M14+
TUNER_SIF
[DAC_SCK]
[DAC_LRCH]
AUD_LRCK
AUD_SCK
[DAC_LRCK]
[SDA0]
[SCL0]
I2C_SDA1
I2C_SCL1
IC3000
MICOM
AMP_MUTE
[AUDA_L_CH2_IN]
[AUDA_R_CH2_IN]
[AUDA_L_CH3_IN]
[AUDA_R_CH3_IN]
JK3802
DVB only
DVB only
AUD_MASTER_CLK
[AUDCLK_OUT]
JK4600
[GPIO21]
AMP_RESET_N
IC6100
TPA6138A2PWR
HP AMP
JK3401
JK3403
LPF
SPEAKER_L
SPEAKER_R
IC6000
AZ4580MT R
OP AMP
Mute CTRL
(TR)
SCART
JK4600
SIDE_HP_MUTE
LPF
HP_L/ROUT_AMP
[AAD _ADC -SIF]
7. Audio Out Block Diagram
Only for training and service purposes
- 28 -
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