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LED TV SERVICE MANUAL CHASSIS : LW45A
MODEL : 24LB45*A
24LB45*A-T*
CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL68122002 (1402-REV00)
Printed in Korea
CONTENTS
CONTENTS CONTEN TS ................. .................................... ...................................... ...................................... ....................................... .................... 2 SAFETY PRECAUTIONS PRECAUTIONS ................... ....................................... ....................................... ................................. .............. 3 SERVICING SERVI CING PRECAUT PRECAUTIONS IONS.................. ...................................... ....................................... .............................. ........... 4 SPECIFICA SPECIFIC ATION ................... ...................................... ....................................... ....................................... ............................. .......... 6 ADJUSTMENT ADJUSTME NT INSTRUCT INSTRUCTION ION ................................................. ................................................................ ............... 8 TROUBLE SHOOTING GUIDE .................. ..................................... ....................................... .......................... ...... 12 BLOCK DIAGRAM................... DIAGRAM ...................................... ...................................... ....................................... ......................... ..... 24 EXPLODED EXPLODE D VIEW ................... ...................................... ...................................... ....................................... ......................... ..... 25 SCHEMATIC SCHEMA TIC CIRCUIT DIAGRAM .................. ...................................... ....................................... ........................ .....
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
CONTENTS
CONTENTS CONTEN TS ................. .................................... ...................................... ...................................... ....................................... .................... 2 SAFETY PRECAUTIONS PRECAUTIONS ................... ....................................... ....................................... ................................. .............. 3 SERVICING SERVI CING PRECAUT PRECAUTIONS IONS.................. ...................................... ....................................... .............................. ........... 4 SPECIFICA SPECIFIC ATION ................... ...................................... ....................................... ....................................... ............................. .......... 6 ADJUSTMENT ADJUSTME NT INSTRUCT INSTRUCTION ION ................................................. ................................................................ ............... 8 TROUBLE SHOOTING GUIDE .................. ..................................... ....................................... .......................... ...... 12 BLOCK DIAGRAM................... DIAGRAM ...................................... ...................................... ....................................... ......................... ..... 24 EXPLODED EXPLODE D VIEW ................... ...................................... ...................................... ....................................... ......................... ..... 25 SCHEMATIC SCHEMA TIC CIRCUIT DIAGRAM .................. ...................................... ....................................... ........................ .....
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical electrical and mechanical mechanical parts in this chassis have special special safety-related safety-related characteristics. 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
Leakage Current Hot Check (See below Figure) Plug the AC cord directly into the AC outlet.
An isolation Transformer should always be used 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.
Do not use a line Isolation Transformer 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. 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 Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer, always perform an AC leakage current check 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 abno rmali ty exist s that must be corr ected befo re the receiver is returned to the customer.
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LGE Internal Use Only
SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this publication. NOTE : If unforeseen circumstances create conict 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 specied 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 specied 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 specied 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.
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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 classied as “anti-static” can generate electrical charges sufcient to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical charges sufcient 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 sufcient 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, suctiontype 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.
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LGE Internal Use Only
IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent at against the circuit foil. When holes are the slotted type, the following technique should be used to remove and replace the IC. When working with boards using the familiar round hole, use the standard technique as outlined in paragraphs 5 and 6 above. Removal 1. Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts. 2. Draw away the melted solder with an anti-static suction-type solder removal device (or with solder braid) before removing the IC. Replacement 1. Carefully insert the replacement IC in the circuit board. 2. Carefully bend each IC lead against the circuit foil pad and solder it. 3. Clean the soldered areas with a small wire-bristle brush. (It is not necessary to reapply acrylic coating to the areas).
"Small-Signal" Discrete Transistor Removal/Replacement 1. Remove the defective transistor by clipping its leads as close as possible to the component body. 2. Bend into a "U" shape the end of each of three leads remaining on the circuit board. 3. Bend into a "U" shape the replacement transistor leads. 4. Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the "U" with long nose pliers to insure metal to metal contact then solder each connection. Power Output, Transistor Device Removal/Replacement 1. Heat and remove all solder from around the transistor leads. 2. Remove the heat sink mounting screw (if so equipped). 3. Carefully remove the transistor from the heat sink of the circuit board. 4. Insert new transistor in the circuit board. 5. Solder each transistor lead, and clip off excess lead. 6. Replace heat sink. Diode Removal/Replacement 1. Remove defective diode by clipping its leads as close as possible to diode body. 2. Bend the two remaining leads perpendicular y to the circuit board. 3. Observing diode polarity, wrap each lead of the new diode around the corresponding lead on the circuit board. 4. Securely crimp each connection and solder it. 5. Inspect (on the circuit board copper side) the solder joints of the two "original" leads. If they are not shiny, reheat them and if necessary, apply additional solder.
3. Solder the connections. CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or "lift-off" the board. The following guidelines and procedures should be followed whenever this condition is encountered. At IC Connections To repair a defective copper pattern at IC connections use the following procedure to install a jumper wire on the copper pattern side of the circuit board. (Use this technique only on IC connections).
1. Carefully remove the damaged copper pattern with a sharp knife. (Remove only as much copper as absolutely necessary). 2. carefully scratch away the solder resist and acrylic coating (if used) from the end of the remaining copper pattern. 3. Bend a small "U" in one end of a small gauge jumper wire and carefully crimp it around the IC pin. Solder the IC connection. 4. Route the jumper wire along the path of the out-away copper pattern and let it overlap the previously scraped end of the good copper pattern. Solder the overlapped area and clip off any excess jumper wire. At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins. This technique involves the installation of a jumper wire on the component side of the circuit board.
1. Remove the defective copper pattern with a sharp knife. Remove at least 1/4 inch of copper, to ensure that a hazardous condition will not exist if the jumper wire opens. 2. Trace along the copper pattern from both sides of the pattern break and locate the nearest component that is directly connected to the affected copper pattern. 3. Connect insulated 20-gauge jumper wire from the lead of the nearest component on one side of the pattern break to the lead of the nearest component on the other side. Carefully crimp and solder the connections. CAUTION: Be sure the insulated jumper wire is dressed so the it does not touch components or sharp edges.
Fuse and Conventional Resistor Removal/Replacement 1. Clip each fuse or resistor lead at top of the circuit board hollow stake. 2. Securely crimp the leads of replacement component around notch at stake top.
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement.
1. Application range
3. Test method
This specification is applied to the LW45A chassis.
1) Performance: LGE TV test method followed 2) Demanded other specification - Safety : CE, IEC specification - EMC : CE, IEC
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 5 minutes prior to the adjustment.
4. Model General Specification No.
Item
Specication
1.
Market
NON EU
2.
Broadcasting system
PAL/SECAM B/G/D/K PAL-I NTSC-M
BAND 3.
Channel Storage
PAL(BG,I)
Remarks
NTSC(M)
China(DK)
VHF/UHF
01-C69
2~78
C1~C69
Cable
S1~S47
1~71
S1~S47
4.
Receiving system
Upper Heterodyne
5.
Video Input
PAL, SECAM, NTSC
Rear (1EA)
6.
Component Input
Y/Cb/Cr, Y/Pb/Pr
Rear(1EA) - LB450/2A Only
7.
USB Input
MP3, JPEG, Movie
Side(1EA)
8.
AV Audio Output
RF/AV/HDMI Audio Output
Rear (1EA)
9.
D-sub Input
RGB (PC)
Rear(1EA) - LB451/3/4/7A & LB515A
Service Only
Rear(1EA) - LB450/2A
9.
HDMI Input
HDMI-DTV
Rear (1EA)
Audio Input (1EA)
AV
L/R Input(1EA)
10.
5. RGB-PC Input No.
Resolution
H-freq(kHz)
V-freq(Hz)
Pixel clock(MHz)
1.
640*480
31.469
59.94
25.175
2.
800*600
37.879
60.317
40.0
3.
1024*768
48.363
60.0
65.0
4.
1280*720
47.77
59.85
74.5
5.
1152*864
54.34
60.05
80
6.
1366*768
47.71
59.79
85.5
* Monitor Range Limits Min Vertical Freq - 56 Hz/ Max Vertical Freq - 61 Hz Min Horiz. Freq - 30 kHz/ Max Horiz. Freq - 69 kHz Pixel Clock - 90 MHz
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
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LGE Internal Use Only
6. Component Video Input(Y, P B, PR) No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
1.
720*480
15.73
59.94
13.500
SDTV, DVD 480I(525I)
2.
720*480
15.75
60.00
13.514
SDTV, DVD 480I(525I)
3.
720*576
15.625
50.00
13.500
SDTV, DVD 576I(625I) 50Hz
4.
720*480
31.47
59.94
27.000
SDTV 480P
5.
720*480
31.50
60.00
27.027
SDTV 480P
6.
720*576
31.25
50.00
27.000
SDTV 576P 50Hz
7.
1280*720
44.96
59.94
74.176
HDTV 720P
8.
1280*720
45.00
60.00
74.250
HDTV 720P
9.
1280*720
37.50
50.00
74.25
HDTV 720P 50Hz
10.
1920*1080
28.125
50.00
74.250
HDTV 1080I 50Hz,
11.
1920*1080
33.72
59.94
74.176
HDTV 1080I
12.
1920*1080
33.75
60.00
74.25
HDTV 1080I
13.
1920*1080
56.25
50
148.5
HDTV 1080P
14.
1920*1080
67.432
59.94
148.350
HDTV 1080P
15.
1920*1080
67.5
60.00
148.5
HDTV 1080P
7. HDMI Input(DTV) No.
Resolution
H-freq(kHz)
V-freq.(kHz)
Pixel clock(MHz)
Proposed
1.
720*480
15.73
59.94
13.500
SDTV, DVD 480I(525I)
2.
720*480
15.75
60.00
13.514
SDTV, DVD 480I(525I)
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
56.25
50.00
148.5
HDTV 1080P
14.
1920*1080
67.432
59.94
148.350
HDTV 1080P
15.
1920*1080
67.5
60.00
148.5
HDTV 1080P
16.
1920*1080
27
24.00
74.25
HDTV 1080P
17.
1920*1080
33.75
30.00
74.25
HDTV 1080P
18.
1920*1080
26.97
23.97
74.25
HDTV 1080P
19.
1920*1080
33.716
29.976
74.25
HDTV 1080P
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
-7-
Remarks Spec. out but display.
LGE Internal Use Only
ADJUSTMENT INSTRUCTION 1. Application Range
3.2. EDID Download 3.2.1. Overview
This specification sheet is applied to all of the LED TV with LW45A chassis.
- It is a VESA regulation. A PC or a MNT will display an optimal resolution through information sharing without any necessity of user input. It is a realization of “Plug and Play”.
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 100-220 V, 50/60Hz. (5) The receiver must be operated for over 5 minutes prior to the adjustment when module is in the circumstance of above 15 °C. In case of keeping module is in the circumstance of 0 °C, it should be placed in the circumstance of above 15 °C for 2 hours. In case of keeping module is in the circumstance of below -20 °C, it should be placed in the circumstance of above 15 °C for 3 hours.
3.2.2. Equipment - Since EDID data is embedded, EDID download JIG, HDMI cable are not need.
3.2.3. Download method - The EDID data is automatically saved.
3.2.4. EDID DATA ** RGB : 128Bytes 0 1 2 0 00 FF FF 10 01 17 01 20 0F 47 4A 30 81 C0 01 40 33 00 3F 50 45 09 00 60 44 20 48 70 00 0A 20
3. ADC calibration - An ADC calibration is automatically adjusted from DFT-Jig - If it needs to adjust manually, refer to appendix.
* ADC Calibration Protocol (RS232) Item
ADC adjust
ADC Adjust
CMD 1 CMD 2 Data 0 A
A
0
0
When transfer the ‘Mode In’, Carry the command.
A
D
1
0
Automatically adjustment (The use of a internal pattern)
Adjust Sequence ▪aa 00 00 [Enter Adjust Mode] ▪xb 00 40 [Component1 Input (480i)] ▪ad 00 10 [Adjust 480i Comp1] ▪xb 00 60 [RGB Input (1024*768)] ▪ad 00 10 [Adjust 1024*768 RGB] ▪aa 00 90 End Adjust mode
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
0 10 20 30
0 00 01 0F 90
40 50 60 70
33 00 58 2C 3D 1E 00 32
80 02 90 1F A0 00 B0 00 C0 25 D0 00 E0 2C F0 40
3.1. ADC Calibration
NO
5 6 7 8 9 FF FF 00 1E 6D 34 1D 78 EA 53 00 01 40 45 40 01 66 21 56 AA 00 00 1E 00 00 20 20 20 20 20 4C 47 20 54 56 20 20 20 20 20
A C8 4D 61 51 00 00 0A 20
B C D E F 59 01 01 01 01 A3 56 4F 9E 26 40 71 40 81 00 00 1E 30 46 8F FD 00 38 3D 1E 00 00 FC 00 32 20 00 00 00 FF 20 20 20 00 67
** HDMI 1 : 256Bytes
* Caution When a still image is displayed for 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.
Enter Adjust Adjust MODE ‘Mode In’
3 4 FF FF 03 68 A1 08 01 01 43 21 0A 20 44 20 20 20
1 FF 17 47 40
03 07 02 00 21 09 25 10
2 3 FF FF 01 03 4A 21 95 00
4 5 6 7 8 FF FF FF 00 1E 80 34 1D 78 EA 08 00 81 80 81 A9 C0 66 21 56
9 6D 53 C0 AA
A B CA 59 4D A3 71 40 51 00
C 01 56 B3 1E
09 45 45 44
25 00 0F 20
21 09 00 48
00 25 0A 44
00 21 20 20
3A 1E 20 20
80 00 20 54
71 38 2D 40 00 FD 00 38 00 00 00 FC 0A 20 01 30
21 16 3A 1A 00 25 80 2C
F1 01 80 01 00 21 09 45
4F 26 18 1D 9E 00 25 20
84 11 71 80 01 00 21 09
05 03 02 20 07 50 09 7F 38 2D 40 58 18 71 1C 16 1D 00 72 51 1E 01 1D 80 00 00 9E 02 25 21 00 00
1A 00 20 4C
02 00 20 47
18 00 20 56
22 10 07 65 2C 45 20 58 D0 1E D0 72 3A 80 1E 00
D 01 4F 00 30
11 13 03 0C 00 09 2C 25 20 6E 1C 16 D0 72 00 00
E 01 9E 81 46
12 00 25 00 28 20 38 00
F 01 26 40 8F
14 10 21 09 55 10 2D 6F
4. White Balance Adjustment 4.1. Overview 4.1.1. W/B adj. Objective & How-it-works (1) Objective: To reduce each Panel’s W/B deviation (2) How-it-works: When R/G/B gain in the OSD is at 192, it means the panel is at its Full Dynamic Range. In order to prevent saturation of Full Dynamic range and data, one of R/G/B is fixed at 192, and the other two is lowered to find the desired value. (3) Adj. condition: normal temperature 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
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LGE Internal Use Only
4.1.2. 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. Equipment (1) Color Analyzer: CA-210(NCG: CH 9/ WCG: CH12/ LED: CH14) (2) Adj. Computer(During auto adj., RS-232C protocol is needed) (3) Adjust Remte control (4) Video Signal Generator MSPG-925F 720p/204-Gray (Model: 217, Pattern: 49) * Color Analyzer Matrix should be calibrated using CS-1000.
4.5. Adjustment method 4.5.1. 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.
4.5.2. LED White balance table - If Model is Polaris Model, G-gain fix is applied. (1) Cool Mode 1) Purpose : Adjust the color temperature to reduce the deviation of the module color temperature. 2) Principle : To adjust the white balance without the saturation, Adjust the G gain more than 172 (If R gain or G gain is more than 255, G gain can adjust less than 172) and change the others (R/B Gain). 3) Adjustment mode : mode - Cool
4.3. Equipment connection Color Analyzer
(2) Medium / Warm Mode 1) Purpose : Adjust the color temperature to reduce the deviation of the module color temperature. 2) Principle : To adjust the white balance without the saturation, Fix the one of R/G/B gain to 192 (default data) and decrease the others. 3) Adjustment mode : Two modes - Medium / Warm
RS-232C
Probe
Computer RS-232C
RS-232C
Pattern Generator Signal Source * If TV internal pattern is used, not needed
4.4. Adjustment Command (Protocol) (1) RS-232C Command used during auto-adj. RS-232C COMMAND CMD
DATA
ID
wb
00
00
wb
00
ff
4.6. Reference(White Balance Adjustment coordinate and color temperature) (1) Luminance: 204 Gray, 80IRE (2) Standard color coordinate and temperature using CS-1000 (over 26 inch) ■ The spec of color temperature and coordinate.
Explanation Begin White Balance adjustment
End White Balance adjustment (internal pattern disappears )
(2) Adjustment Map Adj. item
Cool
Medium
Warm
R Gain G Gain B Gain R Cut G Cut B Cut R Gain G Gain B Gain R Cut G Cut B Cut R Gain G Gain B Gain
Command (lower caseASCII)
Data Range (Hex.)
CMD1
MAX C0 C0 C0
CMD2
j j j
g h i
MIN 00 00 00
j j j
a b c
00 00 00
C0 C0 C0
j j j
d e f
00 00 00
C0 C0 C0
Default (Decimal)
Mode
Color Temp
Color coordinate
Remark
Cool (C50)
13,000 K
x = 0.276 (±0.03) y = 0.279 (±0.03)
Medium (0)
9,300 K
x = 0.290 (±0.03) y = 0.298 (±0.03)
Warm (W50)
6,500 K
x = 0.318 (±0.03) y = 0.334 (±0.03)
* Test signal - Inner pattern for W/B adjust - External white pattern (85IRE, 204gray)
* Note : x,y coordinates are drifted about 0.007 after 30 mins heat-run. So checking color coordinate within 5-min at total assembly line, consider x,y coordinates might be up to 0.007 than x,y target of each color temperature.
R Cut G Cut
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
-9-
LGE Internal Use Only
5. Tool Option setting & Inspection per countries
9. USB S/W Download
(1) Press 'IN START' key at Factory Service remote control. (2) Select 'Tool Option 1'. (3) Punch in the number and press 'OK'. (Each of models has their number) (4) Correct 'Tool Option2' ~ 'Tool Option5'. (5) Completed adjusting Tool option.
* optional, Service only (1) Put the USB Stick to the USB socket. (2) Automatically detecting update file in USB Stick. - If your downloaded program version in USB Stick is lower than that of TV set, it didn’t work. Otherwise USB data is automatically detected. (3) Show the message “Copying files from memory”.
6. Ship-out mode check (In-stop) ▪ After final inspection, press In-Stop key of the Adjustemnt Remote Control and check that the unit goes to Stand-by mode.
7. AUDIO output check 7.1. Audio input condition (1) RF input: Mono, 1 KHz sine wave signal, 100% Modulation (2) CVBS, Component: 1 KHz sine wave signal (0.4 Vrms) (4) Updating is starting.
7.2. Specification Item Audio practical max Output, L/R (Distortion=10% max Output)
Min
Typ
Max
Unit
Remark
4.5
5.0
6.0
W Vrms
(1) Measurement condition - EQ/AVL/Clear Voice: Off (2) Speaker (8 Ω Impedance)
8. GND and HI-POT Test 8.1. GND & HI-POT auto-check preparation (1) Check the POWER CABLE and SIGNAL CABE insertion condition
8.2. 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.
(5) Updating Completed, The TV will restart automatically. (6) If your TV is turned on, check your updated version and Tool option. * If downloading version is more high than your TV have, TV can lost all channel data. In this case, you have to channel recover. if all channel data is cleared, you didn't have a DTV/ATV test on production line. * After downloading, 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.)
8.3. Checkpoint (1) Test voltage - GND: 1.5 KV / min at 100 mA - SIGNAL: 3 KV / min at 100 mA (2) TEST time: 1 second (3) TEST POINT - GND Test = POWER CORD GND and SIGNAL CABLE GND. - Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL. (4) LEAKAGE CURRENT: At 0.5 mArms Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 10 -
LGE Internal Use Only
10. Optional adjustments 10.1. Manual ADC Calibration ■ Enter ‘EZ ADJUST’ mode by pressing ‘ADJ’ key. ■ Enter Internal ADC calibration mode by pressing ‘’ or ‘OK’ key at ‘7. ADC Calibration’ ADC Calibration
EZ ADJUST 0. Tool Option1
NG
ADC Comp 480i
1. Tool Option2 2. Tool Option3 3. Tool Option4 4. Tool Option5
ADC Comp 1080p
NG
ADC RGB
NG
Start
5. Country Group
Reset
6. Area Option 7. ADC Calibration
►
8. White Balance 9. 10 Point WB 10. Test Pattern 11. EDID D/L 12. Sub B/C 13. Touch Sensitivity Setting 14. Ext. Input Adjust
► Caution : Using ‘P-ONLY’ key of the Factory Service remote control when turns TV on.
10.2. Manual White balance Adjustment 10.2.1. 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 10cm 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.
10.2.2. Equipment (1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED: CH14) (2) Adj. Computer(During auto adj., RS-232C protocol is needed) (3) Adjust Remot control (4) Video Signal Generator MSPG-925F 720p/216-Gray (Model: 217, Pattern: 78)
10.2.3. Adjustment (1) Set TV in Adj. mode using POWER ON. (2) Zero Calibrate the probe of Color Analyzer, then place it on the center of LCD module within 10cm of the surface. (3) Press ADJ key → EZ adjust using adj. R/C → 6. WhiteBalance then press the cursor to the right (Key►). When Key(►) is pressed 216 Gray internal pattern will be displayed. (4) One of R Gain / G Gain / B Gain should be fixed at 192, and the rest will be lowered to meet the desired value. (5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of color temperature. ■ If internal pattern is not available, use RF input. In EZ Adj. menu 6.White Balance, you can select one of 2 Test-pattern: ON, OFF. Default is inner(ON). By selecting OFF, you can adjust using RF signal in 216 Gray pattern.
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 11 -
LGE Internal Use Only
TROUBLE SHOOTING 1. NO POWER-Main PCBA NO POWER
1
Is Adapter Output VOLTAGE 19.4V through of J K700?
NO
check open or s hort at Line. or change Adapt er.
YES 2 Is 3.3V at C708?
check the Lines of IC701, If there is any p roblem at Line, Change IC701
NO
YES 3 Is 1.8V at C745? is 1.25V at C742?
check the Lines of IC711,IC704 If there is any p roblem at Line, Change IC704,IC706.
NO
YES 4 Check wavefo rm of X501
Check Line short or open between IC501 and X501, Change IC501 or change X501
NO
YES 5
is 3.3V at 1pin of P120? when push power key, Is 0v at 2pin o f P120?
NO
Change co ntrol Or check Line short or open of P120
NO
change IR board Or check Line short or open of P120
YES 6 is there any waver at 11pin of P120, when use remote controller?
4
Insert F/W
X501
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 12 -
LGE Internal Use Only
2. No raster (Power LED blue, black screen) NO RASTER (Screen is not disp layed)
1
Is 19.4V at JK700?
NO
check open or s hort at Line. or change Adapter
NO
Check Line short or open between IC711/IC704 and IC501, If there is any p roblem at Line, Change IC711/IC704 or chang e IC501
YES 2
Is 1.25V at 4pin of IC704? Is 1.8V at 2pin of IC711? YES
3
NO is 3V at 1pin of IC601? YES
4 Put into LVDS cable co mpletely? LVDS cable have damage?
5
NO
YES NO is 12V at 1pin o f P 101? YES
It is not o ver 3V at 1pin o f IC601. Change Q601. Or check Line short o r open between R603 and 95pin of IC501. Change IC 501. If LVDS c able isn’t insulted enough, Insult LVDS cable until lo cking hook. If LVDS cab le have damage, Change LVDS c able If is no t under 1.5V at R722, change Q721 o r check op en and short of Line among Q720 and Q721. If is under 11V at L110, Check o pen and short Of line between L110 and P101.
Insert the F/W back or REPLACE LCD MODULE
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 13 -
LGE Internal Use Only
3. Abnormal/No screen (All input)-Main PCBA Ab normal/No s creen (all input)
1 Put into LVDS cable co mpletely? LVDS cable have damage?
NO
YES 2 Is 12V at 1pin of P101?
NO
YES
3
Check wavefo rm at signal line of P101 (Clock:9,10 Data: 6,7,12,13,15,16,18,19)
NO
If LVDS cab le isn’t insulted enough, Insult LVDS cable until locking hoo k. If LVDS cable have damage, Change LVDS c able
If is not under 1.5V at R722, change Q721 o r check op en and short of Line among Q720 and Q721. If is under 11V at L110, Check op en and sho rt Of line between L110 and P101.
Check op en and sho rt Of line between Q720 and P101. Or Check LVDS cable have damage. Another is change IC501.
YES Change mo dule
WAVEFORMS
3
9,10Pin of P101 (Clock line)
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
6,7,12,13,15,16,18,19 Pin of 1201 (Data Line)
- 14 -
LGE Internal Use Only
4. Abnormal screen (TV)-Main PCBA Ab normal screen (TV)
1
insult RF cable tight and then Cable nut screw t ight.
NO
Put into RF cable completely? YES
2
If 1.7V is not at p lus pin of TU401, check It is over 3V at 2pin o f IC711, if it is not, Check Line between TU401 and IC711 is op en or short. Anot her is change IC711 or TU401
NO
Is 1.8V at 7pin of TU401?
3
Is I2C waveform At 3,4pin of TU401?
NO
Check Line between TU401 and IC501 is open or short, Another is change IC501 or TU401
4
Is IF wavef orm at 43 ,44 pin of IC501?
NO
Check Line between TU401 and IC501 is open or short, Another is change IC501 or TU401
Change Main PCBA
WAVEFORMS
3
4
3Pin of TU401 (SCL)
4Pin of TU401 (SDA)
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 15 -
43,44pin o f IC501
LGE Internal Use Only
5. Abnormal screen (AV)-Main PCBA Abnormal screen (AV)
1
NO
Put into AV cable completely?
Insult AV c able tight
YES 2
Is Input signal timing and f ormat in spec?
NO
Change Timing to 480I, 576I Or change f ormat CVBS
YES 3
Is waveform at R505
Check Line between JK101 and IC501 is open or short, Another is change AV cable
NO
YES Change IC501
WAVEFORMS
3
R505 (CVBS)
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 16 -
LGE Internal Use Only
6. Abnormal screen (RGB PC)-Main PCBA Ab normal screen (RGB PC)
1
NO
Put into RGB cable co mpletely?
insult RGB c able tight
YES 2
NO
Is Input signal timing and f ormat in spec?
Change Timing accord ing to prod uct spec, Or change fo rmat to RGB
YES 3
Is waveform at R501 R502, R504
Check Line between JK201 and IC501 is open or short, Another is Change RGB cable
NO
YES Change IC501
WAVEFORMS
3
R502(G)
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
R604(R)
- 17 -
R601(B)
LGE Internal Use Only
7. Abnormal screen (COMPONENT)-Main PCBA Abnormal screen (COMPONENT)
1
NO
Put into Component cable completely?
insult COMPONENT c able tig ht
YES 2
NO
Is Input signal timing and f ormat in spec?
Change Timing according to product spec, Or change f ormat to Component
YES 3
Is waveform at R501 R502, R504
Check Line between JK102 and IC501 is open or short, Another is Change COMPONENT cable
NO
YES Change IC501
WAVEFORMS
3
R502(G)
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
R604(R)
- 18 -
R601(B)
LGE Internal Use Only
8. Abnormal screen (HDMI)-Main PCBA Abnormal screen (HDMI)
1
NO
Put into HDMI cable completely?
insulted HDMI cable
YES 2
Change Timing according to product sp ec, change f ormat under 8 bit in Ycb cr, Ypbp r, RGB
NO
Is Input signal timing and fo rmat in spec? YES
3
Check Line b etween JK 203 and IC501 is open or short, Another is Change HDMI cable
Can read EDID and HDCP key though 16,15pin of JK203 YES
Check Line b etween JK203 and IC501 is open or short, Another is Change IC501 or HDMI cable
4 Is 5V at 19pin o f J K203?
YES 5
Is wavef orm at 10,12pin of JK203?
Check Line b etween JK203 and IC501 is open or short, Another is Change HDMI cable
NO
YES 6
Is wavef orm at 1,3,4,6,7,9pin Of J K203?
Check Line b etween JK 203 and IC501 is open or short, Another is Change HDMI cable
NO
YES Change IC501
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 19 -
LGE Internal Use Only
9. No sound (all source )-Main PCBA NO so und (All source) 1 NO
Does wire connect P301 with speaker? YES 2
If 8V is not plus at L703, check of JK700 is open. If is not Check Line between L703 and IC301 is op en or short. .Another is change IC301
NO
Is 19.4V at 19,20,31,32pin of IC301 ?
Connect wire between P301 and speaker.
YES 3 Is 3.3V at 40pin of IC301?
If 3V is not p lus 30pin of IC301, check It is over 3V at L301 if it is not, Check Line between L301 and IC301 is op en or short. Anot her is change IC701,IC301
NO
YES 4
Check Line between IC301 and IC501 is open or short, Another is change IC301 or IC501.
NO
Is I2C waveform at 10,11pin of IC301? YES 5
6
Check Line between IC301 and IC501 is open or short, Another is change IC301 or IC501.
NO
Is I2S wavefo rm at R301,R302,R303,R304?
Check Line between IC301 and P301 is op en or short. And then check resistance of speaker is under 4ohm. Anot her is change IC301
NO Is there any waveform P301? YES Change speaker and wire
4
5
10pin of IC301
R301(SDO)
11pin of IC301
R303(SCK)
6
5
R304(MCLK) Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
R302(WS)
- 20 -
1pin of P301(Audio o ut) LGE Internal Use Only
10. Abnormal sound (TV)-Main PCBA Abnormal sound (TV)
1
insult RF cable tight and then Cable nut screw t ight.
NO
Put into RF cable completely? YES
2
If 1.7V is not at plus p in of TU401, check It is o ver 3V at 2pin o f IC711, if it is no t, Check Line b etween TU401 and IC711 is op en or short. Another is change IC401 or TU401
NO
Is 1.8V at 7pin of TU401?
3
Is I2C waveform At 3,4pin of TU401?
NO
Check Line between TU401 and IC501 is open or short, Another is change IC501 or TU401
4
Is IF waveform at 43, 44 pin of IC501?
NO
Check Line between TU401 and IC501 is open or short, Another is change IC501 or TU401
Change Main PCBA
WAVEFORMS
3
4
3Pin of TU401 (SCL)
4Pin of TU401 (SDA)
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 21 -
43,44pin o f IC501
LGE Internal Use Only
11. Abnormal sound (AV)-Main PCBA Ab normal sound (AV)
1
NO
Put into AV cable completely?
Insult AV c able tight
YES
2
Is wavef orm at C520,C521
Check Line between JK101 and IC501 is open or short, Another is change AV cable
NO
YES Change IC501
WAVEFORMS
2
C520,C521(audio in)
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 22 -
LGE Internal Use Only
12. Abnormal sound (HDMI)-Main PCBA Ab normal sound (HDMI)
1
NO
Put into HDMI cable completely?
insulted HDMI cable
YES 2
Change Timing accord ing to product sp ec, change f ormat under 8 bit in Yc bcr, Ypb pr, RGB
NO
Is Input signal timing and fo rmat in spec? YES
3
Check Line between JK203 and IC501 is open or short, Another is Change HDMI cable
Can read EDID and HDCP key though 16,15pin of JK203 YES
Check Line between JK203 and IC501 is open or short, Another is Change IC501 o r HDMI cable
4 Is 5V at 19pin o f J K203?
YES 5
Is wavef orm at 10,12pin of JK203?
Check Line between JK203 and IC501 is open or short, Another is Change HDMI cable
NO
YES 6
Is wavefo rm at 1,3,4,6,7,9pin Of JK 203?
Check Line between JK203 and IC501 is open or short, Another is Change HDMI cable
NO
YES Change IC501
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
- 23 -
LGE Internal Use Only
EXPLODED VIEW 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 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.
0 1 9
0 0 4
1 2 5
0 2 1
0 4 5
1 V L
0 0 9
n o 0 i t p 0 8 O
1 0 8
0 0 2
0 1 5
1 0 3
0 0 3
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes
1 3 A
2 A
- 25 -
LGE Internal Use Only
EAX65643103 44A/45A/450A SW_RESET
R 31 0
1 00
C320 1000pF 50V
I2S_MCLK R 30 4
1 00
9 1 3 C
1 1 3 R
C321 10uF 10V
To improve CST issue.(X5R -> X7R) EAE31360401->EAE52158501 2013.11.27
D N O O G I I I ] _ _ _ P D D K E D N L D [ V G C A
+19V
V 0 5
K 7 . 4
+3.3V_M
F p 0 0 0 2 2
TAIYO YUDEN C318 0.1uF 25V
T E S E R
A 1 T S B
A 1 D N G P
A 1 T U O
A 1 D D V P
READY C348 10uF 25V
C317 10uF 25V
L303-*1 10.0uH
B 1 D D V P
R313 12
ABCO
R314 12
C301 1uF 10V
C303 1uF 10V
R 30 1
I2S_SDO
I2S_WS I2S_SCK AUAMP_SDA AUAMP_SCL
R308 4.7K +3.3V_M
R309 4.7K
R 30 5
1 00
R 30 6
1 00
20130914 cjlim READY -> APPLY
1
VDD_PLL
2
NC_2
3
THERMAL 41
4 5
IC301
DVDD
6
NTP7514
7
R 30 2
1 00
WCK
R 30 3
1 00
BCK
9
SDA
10
C331 0.1uF 50V
R323
4.7K
4.7K SPK_L-
TAIYO YUDEN L304-*1 10.0uH
26 NC_4 25 AGND
JP304 SPK_L+
SPK_L+ C314 1uF 10V
24 VDR2 23 BST2A
0x54
8
R316 12
C315 22000pF 50V
28 BST1B 27 VDR1
GND NC_3 SDATA
1 00
R315 12
R322
SPEAKER_L
L304 10uH
30 OUT1B 29 PGND1B
C330 0.1uF 50V C329 0.47uF 50V
ABCO
C326 390pF 50V
0 9 8 7 6 5 4 3 2 1 4 3 3 3 3 3 3 3 3 3
NC_1
SPK_L+
L303 10uH
C325 390pF 50V
C312 1uF 10V
22 PGND2A 21 OUT2A
JP303
JP302
JP301
1 .
SMAW250-H04R
P301 TAIYO YUDEN
C306 33pF 50V
L T 0 C L _ S U R A O F T I N O M
1 _ R O T I N O M
2 _ R O T I N O M
B 2 T S B
C308 22000pF 50V
B 2 D N G P
B 2 T U O
B 2 D D V P
A 2 D D V P
2
SPK_R-
SPK_R-
1 2 3 4 5 6 7 8 9 0 1 1 1 1 1 1 1 1 1 2 C305 33pF 50V
3
SPK_R+
SPK_R+
C311 22000pF 50V
4
SPK_L-
SPK_L-
L305-*1 10.0uH
+19V R317 12
C309 0.1uF 25V
C310 10uF 25V
READY C349 10uF 25V
R318 12
SPK_R+
ABCO L305 10uH
C334 0.1uF 50V
C327 390pF 50V
SPEAKER_R
C333 0.47uF 50V
C328 390pF 50V R319 12
R324 4.7K
C335 0.1uF 50V
ABCO L306 10uH
R320 12
R325 4.7K
SPK_RTAIYO YUDEN L306-*1 10.0uH
POWER_DET
AUDIO_OUT AMP : GAIN X 4 IC341 AS324MTR-E1
+18V
C341 0.1uF 25V C
B
Q341 MMBT3904(NXP) R 34 2
1 OUT1
1K
E C342 0.0068uF 50V
MNT_LOUT R341 4.7K
R343
C343
OUT4 14
10K
33pF50V
2 I NP UT 1-
INPUT4- 13
3 I NP UT 1+
INPUT4+ 12
R344 6.8K
MNT_L_AMP
R 34 5
5 .6 K
+18V
4 VCC C344 0.1uF 25V
GND 11
EAX65643103 44A/45A/450A SW_RESET
R 31 0
1 00
C320 1000pF 50V
I2S_MCLK R 30 4
1 00
D N G ] P E [
To improve CST issue.(X5R -> X7R) EAE31360401->EAE52158501 2013.11.27
F p 0 0 0 2 2
9 1 3 C
1 1 3 R
C321 10uF 10V
+19V
V 0 5
K 7 . 4
+3.3V_M
TAIYO YUDEN C318 0.1uF 25V
O I _ D D V
O I _ D N G
I T _ E K S L D E C A R
A 1 T S B
A 1 D N G P
A 1 T U O
A 1 D D V P
READY C348 10uF 25V
C317 10uF 25V
L303-*1 10.0uH
B 1 D D V P
R313 12
ABCO
R314 12
NC_1
1 2
NC_2
3
GND
4
NC_3
5
IC301
DVDD
6
NTP7514
C301 1uF 10V
C303 1uF 10V
R 30 1
I2S_SDO
R 30 2
I2S_WS
R 30 3
I2S_SCK AUAMP_SDA AUAMP_SCL
R308 4.7K
R 30 5
1 00
R 30 6
1 00
20130914 cjlim READY -> APPLY
R309 4.7K
+3.3V_M
SDATA
1 00
30 OUT1B 29 PGND1B
THERMAL 41
7
WCK
1 00
BCK
9
SDA
10
8
C331 0.1uF 50V
R323
4.7K
4.7K SPK_L-
TAIYO YUDEN L304-*1 10.0uH
C315 22000pF 50V
28 BST1B 27 VDR1 26 NC_4 25 AGND
JP304 SPK_L+
SPK_L+ C314 1uF 10V
24 VDR2 23 BST2A
0x54
1 00
R316 12
R322
SPEAKER_L
L304 10uH R315 12
C330 0.1uF 50V C329 0.47uF 50V
ABCO
C326 390pF 50V
0 9 8 7 6 5 4 3 2 1 4 3 3 3 3 3 3 3 3 3
VDD_PLL
SPK_L+
L303 10uH
C325 390pF 50V
C312 1uF 10V
22 PGND2A 21 OUT2A
JP303
JP302
JP301
2
SPK_R-
SPK_R-
1 .
1 2 3 4 5 6 7 8 9 0 1 1 1 1 1 1 1 1 1 2 C305 33pF 50V
3
SPK_R+
SPK_R+
C311 22000pF 50V
4
SPK_L-
SPK_L-
SMAW250-H04R
P301 TAIYO YUDEN
C306 33pF 50V
L T 0 C L _ S U R A O F T I N O M
1 _ R O T I N O M
2 _ R O T I N O M
B 2 T S B
B 2 D N G P
B 2 T U O
B 2 D D V P
A 2 D D V P
L305-*1 10.0uH
+19V R318 12
R317 12
C309 0.1uF 25V
C310 10uF 25V
READY C349 10uF 25V
SPK_R+
ABCO L305 10uH
C334 0.1uF 50V
C327 390pF 50V
R319 12
50V
SPEAKER_R
C333 0.47uF 50V
C328 390pF 50V
C308 22000pF
R324 4.7K
C335 0.1uF 50V
ABCO L306 10uH
R320 12
R325 4.7K
SPK_RTAIYO YUDEN L306-*1 10.0uH
POWER_DET
AUDIO_OUT AMP : GAIN X 4 IC341 AS324MTR-E1
+18V
C341 0.1uF 25V C
B
Q341 MMBT3904(NXP) R 34 2
1 OUT1
1K
E C342 0.0068uF 50V
MNT_LOUT
R343
R341 4.7K
C343
OUT4 14
10K
33pF50V
2 I NP UT 1-
INPUT4- 13
3 I NP UT 1+
INPUT4+ 12
R344 6.8K
R 34 5
MNT_L_AMP
5 .6 K
+18V
4 VCC
GND 11
C344 0.1uF 25V
R 34 6
MNT_R_AMP
5 .6 K
5 I NP UT 2+
INPUT3+ 10
6 I NP UT 2-
INPUT3- 9
C345 33pF 50V
+18V
R347
10K R350 6.8K
C346 0.1uF 25V C
Q342 MMBT3904(NXP) R349 B
7 OUT2
1K
E
MNT_ROUT
OUT3 8
C347 0.0068uF 50V
R348 4.7K
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
44A/45A/450A AUDIO
2013/08/21 3
8
AUDIO
Copyright © 2014 LG Electronics. Inc. All rights reserved. Only for training and service purposes
LGE Internal Use Only
TBD 44A/45A/450A
NTSC
IF
TU402 TDSS-H701F
+1.8V_M READY
L402 BLM18PG121SN1D NTSC
1 2 3 4 5 6 7 8 9 10 11
NC_1
C408 0.1uF 16V
NTSC C409 10uF 10V
MULTI_TUNER
B1
A1
+3.3V_M
TDJH-G101D
C405 0.1uF 16V
SD A
1
+B1[3.3V]
2 3
NC_3 4
NC_4
5
NC_5
6 7
IF_AGC
8
DIF[P] 9
A1
B1
To set multi option for NTSC 2013.11.27 by BJ.KIM
NC_1 IF_AGC
R412
PAL 100
READY R403 100
TUNER_RESET
PAL R413 10 PAL R414 10
IF[N] NC_2
NTSC R413-*1 33
C403 20pF 50V
R 4 16
R408 1K
33
33
C406 20pF 50V READY C407 20pF 50V READY
NTSC R414-*1 33
To change the value from 0ohm to 33ohm at NTSC. 2013.11.27 by BJ.KIM
B1
SHIELD
SHIELD
Y 2 0 D 4 A E R R 0
TUNER_SCL
TUNER_SDA
IF_P IF_N
Close to the tuner
NC_3
Y D 1 A 0 E 4 R R 0
+3.3V_TU
R407 1K R 4 15 C402 20pF 50V
IF[P]
C413 1000pF 630V
READY R404 100K
READY C401 0.1uF 16V
IF_AGC
SDA
12
C411 1000pF 630V
+3.3V_TU
NTSC R412-*1 1K
C410 0.1uF should be guarded by ground 16V
SCL
47
C414 1000pF 630V
C404 22uF 6.3V
B1[+3.3V]
DIF[N]
A1
L401 BLM18PG121SN1D
Near the pin
SC L
A1
B1
+3.3V_TU
TU401
NC_2
TBD 44A/45A/450A
NTSC
IF
TU402 TDSS-H701F
+1.8V_M READY
L402 BLM18PG121SN1D NTSC
1 2 3 4 5 6 7 8 9 10 11
NC_1
C408 0.1uF 16V
NTSC C409 10uF 10V
MULTI_TUNER
NC_2
B1
A1
+3.3V_M
TDJH-G101D
C405 0.1uF 16V
SD A
1
+B1[3.3V]
2 3
NC_3 4
NC_4
5
NC_5
6 7
IF_AGC
8
DIF[P] 9
L401 BLM18PG121SN1D
Near the pin
SC L
C404 22uF 6.3V
+3.3V_TU
B1[+3.3V] To set multi option for NTSC 2013.11.27 by BJ.KIM
NC_1 IF_AGC
R412
PAL 100
C410 0.1uF should be guarded by ground 16V
SCL
READY R403 100
NTSC R412-*1 1K
READY R404 100K
TUNER_RESET
R407 1K R 4 15 C402 20pF 50V
SDA IF[P]
PAL R413 10
IF[N]
PAL R414 10
NC_2
+3.3V_TU
READY C401 0.1uF 16V
IF_AGC
NTSC R413-*1 33
C403 20pF 50V
R 4 16
R408 1K
33
33
C406 20pF 50V READY C407 20pF 50V READY
NTSC R414-*1 33
TUNER_SCL
TUNER_SDA
IF_P IF_N
Close to the tuner To change the value from 0ohm to 33ohm at NTSC. 2013.11.27 by BJ.KIM
NC_3
DIF[N] A1
B1
+3.3V_TU
TU401
A1
A1
B1
B1
47 SHIELD
12 SHIELD
C414 1000pF 630V
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
C411 1000pF 630V
C413 1000pF 630V
Y D 1 A 0 E 4
R R 0
Y 2 0 D 4 A E R R 0
44A/45A/450A TUNER
&
IR
2013/08/21 4
8
TUNER
Copyright © 2014 LG Electronics. Inc. All rights reserved. Only for training and service purposes
LGE Internal Use Only
TBD 44A/45A/450A
B S U _ V 5 +
+19V BLU_ON
R601 10K R603 10K
INV_ON
R604 1K
C B
DRIVER R605 100K 1%
1% Q601 MMBT3904(NXP)
DRIVER C606 10uF 25V
DRIVER C601 1000pF 50V
EN
OVP
1%
DRIVER R607 27K 1%
DRIVER C602 1000pF 50V
NC_1
BLU_CURRENT_CTL
READY C603 50V 100pF
1
3.3-> 5.6ohm(12.12.25) [EP]GND
24 L A M 5 R 2 E H T
2
23
3
22
4
21
D DRIVER R620 5.6
VIN
CS
PGND_2
PDIM READY R610 100K
5
20
6
19
0.1
NDRV
RSS
DRIVER R616
DRIVER R617
240K 1%
10K 1%
DRIVER DRIVER RISET
18.5_BOE R611-*3 1.8K 1% 18.5_BOE R612-*3 39K 1%
18.5_CMI FHD_22_HEESUNG/FHD_24 R611-*1 R611-*2 0 2.7K 18.5_CMI FHD_22_HEESUNG/FHD_24 R612-*1 R612-*2 39K 36K
LS8
HD_24/FHD_22 R611 680
7
18
8
17
LS7
HD_24/FHD_22 R612 20K
LS6
9
16
10
15
LS5
11
14
Add BLU Current Option
12
13
1% DRIVER
DRIVER C605
COMP
RT
R613 39K 1%
18.5_AUO R611-*4 2.7K 1% 18.5_AUO R612-*4 33K 1%
S
DRIVER C614 1uF 25V
VREF
DRIVER Q602 AOD478
G
R618 PGND_1
DRIVER R608 100 READY R609 100K
EMI Improve 0-> 3.3ohm(12.12.25)
IC601 DT1641AS
DRIVER R606 560K
PWM_DIM
100V
DRIVER C607 10uF 25V
DRIVER
E
VOUT
DRIVER D602 BR210
DRIVER L601 33UH
BOOST R627 0
R602 3K
READY
R614
4700pF 50V DRIVER R615
1.5K 1%
1.5K 1%
LS1
DRIVER C604 0.047uF 25V
LS2
LS3
LS4
2013.01.05 NC_2
Y D A E R
JP601
JP602
0 0 6 A V Y D A E R
1 0 6 A V Y D A E R
2 0 6 A Y V D A E R
3 0 6 A V
LGND
Y D A E R
JP603
JP604
4 0 6 A V Y D A E R
5 0 6 A V Y D A E R
JP605
6 0 6 A V Y D A E R
7 0 6 A V
VOUT
JP606
2CH/4CH R621 0 READY R625 0
2CH/4CH R622 0
READY R626 0
R623 0
JP609 JP607
2CH/4CH
R624 0 2CH/4CH
JP608
DRIVER C609 10uF 100V
DRIVER C610 10uF 100V
DRIVER C611 1uF 100V
DRIVER C612 1uF 100V
DRIVER C613 1uF 100V
TBD 44A/45A/450A
B S U _ V 5 +
+19V BLU_ON
R602 3K
READY
R601 10K R603 10K
INV_ON
R604 1K
C B
DRIVER R605 100K 1%
1% Q601 MMBT3904(NXP)
DRIVER C606 10uF 25V
DRIVER C601 1000pF 50V
EN
1
OVP
1%
DRIVER R607 27K 1%
DRIVER C602 1000pF 50V
NC_1
READY C603 50V 100pF
L A M 5 R 2 E H T
23
3
22
4
21
5
20
6
19
D DRIVER R620 5.6
VIN
CS
PGND_2
PDIM
0.1
NDRV
RSS
DRIVER R616
DRIVER R617
240K 1%
10K 1%
18.5_BOE R611-*3 1.8K 1% 18.5_BOE R612-*3 39K 1%
18.5_CMI FHD_22_HEESUNG/FHD_24 R611-*1 R611-*2 0 2.7K 18.5_CMI FHD_22_HEESUNG/FHD_24 R612-*1 R612-*2 39K 36K
1% DRIVER
DRIVER C605
COMP DRIVER DRIVER
RISET
7
18
RT
R613
LS8
HD_24/FHD_22 R611 680
LS7
HD_24/FHD_22 R612 20K
LS6
LS5 Add BLU Current Option
8
17
9
16
10
15
11
14
12
13
DRIVER R615
R614 1.5K 1%
39K 1%
18.5_AUO R611-*4 2.7K 1% 18.5_AUO R612-*4 33K 1%
S
DRIVER C614 1uF 25V
VREF
DRIVER Q602 AOD478
G
R618
READY R610 100K
BLU_CURRENT_CTL
3.3-> 5.6ohm(12.12.25) [EP]GND
24
2
PGND_1
DRIVER R608 100 READY R609 100K
EMI Improve 0-> 3.3ohm(12.12.25)
IC601 DT1641AS
DRIVER R606 560K
PWM_DIM
100V
DRIVER C607 10uF 25V
DRIVER
E
VOUT
DRIVER D602 BR210
DRIVER L601 33UH
BOOST R627 0
4700pF 50V
1.5K 1%
LS1
DRIVER C604 0.047uF 25V
LS2
LS3
LS4
2013.01.05 NC_2
Y D A E R
0 0 6 A V Y D A E R
1 0 6 A V Y D A E R
2 0 6 A Y V D A
LGND
3 0 6 A V
Y D A E R
E R
JP601
JP603
JP602
JP604
4 0 6 A V Y D A E R
5 0 6 A V Y D A E R
6 0 6 A V Y D A E R
JP605
7 0 6 A V
VOUT
JP606
2CH/4CH R621 0 READY R625 0
2CH/4CH R622 0
READY R626 0
JP609
DRIVER C609 10uF 100V
DRIVER C610 10uF 100V
DRIVER C611 1uF 100V
DRIVER C612 1uF 100V
DRIVER C613 1uF 100V
JP607
R623 0 2CH/4CH
JP608
R624 0 2CH/4CH
6
5
4
7
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
3
2
1
L 6 0 H - C 2 R 4 0 W / 6 7 H P 0 C 5 2 2 1
2 1 3 1
1 1
0 1
9
8
7
6
5
4
3
2
1
5 0 J 2 1 H 1 - 0 H R 6 C H P 8 2 0 0 5 0
44A/45A/450A LED_Driver
2013/08/21 6
8
LED DRIVER
Copyright © 2014 LG Electronics. Inc. All rights reserved. Only for training and service purposes
LGE Internal Use Only
TBD 44A/45A/450A
22/26 P801
27.5
SM14B-SRSS-TB
+24V_BLU
P802 20022WR-14A00
JP801 24V
1
24V
2
24V
3
24V
4
24V
5
GND
6
1 +19V 2 BOOST D801 BR210
BOOST L801 10uH
BOOST C802 10uF 25V
+24V_BLU
3
100V
READY C803 0.1uF 25V
BOOST C804 100pF
BOOST R812 220K
BOOST R813 30K
50V BOOST IC801 TPS40210DGQR
BOOST R814 10
[EP]
BOOST C811 68uF 35V
BOOST C816 270pF 50V
BOOST C814 1uF 50V
4
READY C815 1uF 50V
5
6 GND
RC BOOST R801 10K
BOOST_EN
BOOST R802 1K
BOOST C805 0.22uF
SS
DIS/EN
FB
12.07.03 To improve backlight blinking C1103 47pF->2200pF C1105 47pF->Apply R1103 18K->470K
2
16V
COMP
12.05.17 To improve audible noise C1103 2200pF->47pF C1105 47pF->OPT
1
BOOST C806 2200pF 50V
BOOST C807 47pF 50V
10 L A M 1 R 1 E H T
3
8
4
7
5
6
BOOST R807 51K
BOOST R805
9
7
BOOST R806 1.5K
GND
8
GND
9
GND
10
ERROR_OUT
11
8
BP
GDRV
BOOST R811 5.6
ISNS
BOOST R810 1K
GND
BOOST READY BOOST C809 C810 C808 0.1uF 100pF 1uF 25V 50V 10V
BOOST R815 1K
D G
BOOST Q801 AOD478
9
S
Y 8 D 0 1 A 8 . E R 0 R
T 9 S 0 1 O 8 . O R 0 B
JP802
READY R820 100
10
BLU_ON JP803
11 INV_ON
READY R822 4.7K
BOOST C821 0.1uF 25V
Y 1 D 2 A 8 E R 0 R
JP804
12 12
NC
13 13
PWN_DIM PWM_DIM
470K
7
VDD
14 14
READY C820 1uF 10V
15 GND
15
TBD 44A/45A/450A
22/26 P801
27.5
SM14B-SRSS-TB
+24V_BLU
P802 20022WR-14A00
JP801 24V
1
24V
2
24V
3
24V
4
24V
5
GND
6
1 +19V 2 BOOST D801 BR210
BOOST L801 10uH
BOOST C802 10uF 25V
+24V_BLU
3
100V
READY C803 0.1uF 25V
BOOST C804 100pF
BOOST R812 220K
BOOST R813 30K
50V BOOST IC801 TPS40210DGQR
BOOST R814 10
[EP]
BOOST C811 68uF 35V
BOOST C816 270pF 50V
BOOST C814 1uF 50V
4
READY C815 1uF 50V
5
6 GND
RC BOOST R801 10K
BOOST_EN
BOOST R802 1K
BOOST C805 0.22uF
SS
DIS/EN
FB
12.07.03 To improve backlight blinking C1103 47pF->2200pF C1105 47pF->Apply R1103 18K->470K
2
16V
COMP
12.05.17 To improve audible noise C1103 2200pF->47pF C1105 47pF->OPT
1
BOOST C806 2200pF 50V
BOOST C807 47pF 50V
10 L A M 1 R 1 E H T
3
9
8
4
7
5
6
7 GND
8
GND
9
GND
10
ERROR_OUT
11
8
BP
GDRV
BOOST R811 5.6
ISNS
BOOST R810 1K
GND
BOOST R807 51K
BOOST R805
7
VDD
BOOST READY BOOST C809 C810 C808 0.1uF 100pF 1uF 25V 50V 10V
BOOST R815 1K
D G
BOOST Q801 AOD478
9
S
Y 8 D 0 1 A 8 . E R 0 R
T 9 S 0 1 O 8 . O R 0 B
READY R820 100
JP802
JP803
11 INV_ON
READY R822 4.7K
BOOST C821 0.1uF 25V
Y 1 D 2 A 8 E R 0 R
JP804
13 13 14 14
BOOST R806 1.5K
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
12 12
NC
PWN_DIM PWM_DIM
470K
10
BLU_ON
READY C820 1uF 10V
15
44A/45A/450A DC
BOOST
15
GND
UP
2013/08/21 8
8
BOOST-UP
Copyright © 2014 LG Electronics. Inc. All rights reserved. Only for training and service purposes
LGE Internal Use Only