LG Electronics. Inc. All rights reserved. Only for training and service ... - If Test is passed, execute next process(Hi-pot test). (Remove A/V CORD ...
North/Latin America Europe/Africa Asia/Oceania Internal Use Only http://aic.lgservice.com http://eic.lgservice.com http://biz.lgservice.com LED TV SERVICE MANUAL CHASSIS : LA57A MODEL : 49LF5100 49LF5100-UA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69155702 (1507-REV00) Printed in Korea CONTENTS CONTENTS ............................................................................................... 2 SAFETY PRECAUTIONS ......................................................................... 3 SERVICING PRECAUTIONS .................................................................... 4 SPECIFICATION ....................................................................................... 6 ADJUSTMENT INSTRUCTION ................................................................ 8 BLOCK DIAGRAM .................................................................................. 14 EXPLODED VIEW ................................................................................... 15 SCHEMATIC CIRCUIT DIAGRAM ............................................ APPENDIX TROUBLE SHOOTING GUIDE.................................................. APPENDIX Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 2 - LGE Internal Use Only SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Exploded View. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. General Guidance An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks. It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation. If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified. When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1 W), keep the resistor 10 mm away from PCB. Keep wires away from high voltage or high temperature parts. Before returning the receiver to the customer, Always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage of electrical shock. Leakage Current Cold Check(Antenna Cold Check) With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on position, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1 M and 5.2 M. When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer. Leakage Current Hot Check (See below Figure) Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check. Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to 0.5 mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer. Leakage Current Hot Check circuit Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 3 - 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 conflict 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 specified 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 flammable mixture. Unless specified 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 fixtures specified in this service manual. CAUTION: Do not connect the test fixture 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 field-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 classified as "anti-static" can generate electrical charges sufficient to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient 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 floor can generate static electricity sufficient to damage an ES device.) General Soldering Guidelines 1. Use a grounded-tip, low-wattage soldering iron and appropri- ate tip size and shape that will maintain tip temperature within the range or 500 °F to 600 °F. 2. Use an appropriate gauge of RMA resin-core solder composed of 60 parts tin/40 parts lead. 3. Keep the soldering iron tip clean and well tinned. 4. Thoroughly clean the surfaces to be soldered. Use a mall 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 flows onto and around both the component lead and the foil. CAUTION: Work quickly to avoid overheating the circuit board printed foil. d. Closely inspect the solder area and remove any excess or splashed solder with a small wire-bristle brush. Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 4 - 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 flat 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 remain- ing on the circuit board. 3. Bend into a "U" shape the replacement transistor leads. 4. Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the "U" with long nose pliers to insure metal to metal contact then solder each connection. Power Output, Transistor Device Removal/Replacement 1. Heat and remove all solder from around the transistor leads. 2. Remove the heat sink mounting screw (if so equipped). 3. Carefully remove the transistor from the heat sink of the circuit board. 4. Insert new transistor in the circuit board. 5. Solder each transistor lead, and clip off excess lead. 6. Replace heat sink. Diode Removal/Replacement 1. Remove defective diode by clipping its leads as close as pos- sible to diode body. 2. Bend the two remaining leads perpendicular y to the circuit board. 3. Observing diode polarity, wrap each lead of the new diode around the corresponding lead on the circuit board. 4. Securely crimp each connection and solder it. 5. Inspect (on the circuit board copper side) the solder joints of the two "original" leads. If they are not shiny, reheat them and if necessary, apply additional solder. Fuse and Conventional Resistor Removal/Replacement 1. Clip each fuse or resistor lead at top of the circuit board hollow stake. 2. Securely crimp the leads of replacement component around notch at stake top. 3. Solder the connections. CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or "lift-off" the board. The following guidelines and procedures should be followed 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. Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 5 - LGE Internal Use Only SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to the LED TV used LA57A chassis. 2. Requirement for Test Each part is tested as below without special appointment. 1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C 2) Relative Humidity: 65 % ± 10 % 3) Power Voltage : Standard input voltage (AC 100-240 V~, 50/60 Hz) * Standard Voltage of each products is marked by models. 4) Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM. 5) The receiver must be operated for about 5 minutes prior to the adjustment. 3. Test method 1) Performance: LGE TV test method followed 2) Demanded other specification - Safety : CE, IEC specification - EMC : CE, IEC 4. Model General Specification No. Item 1 Receiving System 2 Available Channel 3 Input Voltage Specification ATSC / NTSC-M / 64 QAM / 256 QAM 1) VHF : 02~13 2) UHF : 14~69 3) DTV : 02-69 4) CATV : 01~135 5) CADTV : 01~135 North America 4 Market North America 5 Screen Size 43 inch Wide (1920 × 1080) 49 inch Wide (1920 × 1080) 6 Aspect Ratio 16:9 7 Tuning System FS 8 Module HC430DUN-SLNL1 NC490DUE-SADP1 9 Operating Environment 1) Temp : 0 ~ 40 deg 2) Humidity : ~ 80 % 10 Storage Environment 1) Temp. : -20 ~ 60 deg 2) Humidity : ~ 85% FHD / 60Hz FHD / 60Hz Remarks North America Mark : 110V, 60Hz (N.America) LGD LGD 43LF5100-UA 49LF5100-UA Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 6 - LGE Internal Use Only 5. Video resolutions 5.1. Component input(Y, CB/PB, CR/PR) No. Resolution 1 720*480 2 720*480 3 720*480 4 720*480 5 1280*720 6 1280*720 7 1920*1080 8 1920*1080 9 1920*1080 10 1920*1080 11 1920*1080 12 1920*1080 13 1920*1080 14 1920*1080 H-freq(kHz) 15.73 15.73 31.47 31.50 44.96 45.00 33.72 33.75 26.97 27.00 33.71 33.75 67.432 67.50 V-freq.(Hz) 59.94 60.00 59.94 60.00 59.94 60.00 59.94 60.00 23.976 24.00 29.97 30.00 59.94 60.00 Pixel clock(MHz) 13.50 13.5135 27.00 27.027 74.176 74.25 74.176 74.25 74.176 74.25 74.176 74.25 148.352 148.50 Proposed SDTV ,DVD 480I SDTV ,DVD 480I SDTV 480P SDTV 480P HDTV 720P HDTV 720P HDTV 1080I HDTV 1080I HDTV 1080P HDTV 1080P HDTV 1080P HDTV 1080P HDTV 1080P HDTV 1080P Remark 5.2. HDMI Input(PC/DTV) No. Resolution H-freq(kHz) PC 1 640*350 @70Hz 2 720*400 @70Hz 3 640*480 @60Hz 4 800*600 5 1024*768 @60Hz @60Hz 6 1152*864 @60Hz 7 1280*1024 @60Hz 8 9 DTV 1 1360*768 1920*1080 640*480 @60Hz @60Hz 31.46 2 640*480 31.5 3 720*480 15.73 4 720*480 5 720*480 6 720*480 7 1280*720 8 1280*720 9 1920*1080 10 1920*1080 11 1920*1080 12 1920*1080 13 1920*1080 14 1920*1080 15 1920*1080 16 1920*1080 15.75 31.47 31.5 44.96 45 33.72 33.75 26.97 27.00 33.71 33.75 67.43 67.5 V-freq.(Hz) 31.46 31.46 31.46 37.87 48.36 54.34 63.98 47.71 67.5 59.94 60.00 59.94 60.00 59.94 60.00 59.94 60.00 59.94 60.00 23.97 24.00 29.97 30.00 59.94 60.00 Pixel clock(MHz) 70.09 70.08 59.94 60.31 60.00 60.05 60.02 60.01 60.00 Proposed DDC EGA DOS VESA(VGA) VESA(SVGA) VESA(XGA) VESA VESA (SXGA) VESA (WXGA) WUXGA(CEA 861D) 25.125 25.125 13.500 13.514 27.00 27.027 74.176 74.25 74.176 74.25 74.176 74.25 74.176 74.25 148.352 148.50 SDTV 480P SDTV 480P SDTV 480I SDTV 480I SDTV 480P SDTV 480P HDTV 720P HDTV 720P HDTV 1080I HDTV 1080I HDTV 1080P HDTV 1080P HDTV 1080P HDTV 1080P HDTV 1080P HDTV 1080P Remark X O O O O O O FHD only O O FHD only Spec-Out. (Just Display) Spec-Out. (Just Display) Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 7 - LGE Internal Use Only ADJUSTMENT INSTRUCTION 1. Application Range This specification sheet is applied to all of the LED TV with LA57A chassis. 2. Specification (1) Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help protect test instrument. (2) Adjustment must be done in the correct order. (3) The adjustment must be performed in the circumstance of 25 ±5 ºC of temperature and 65±10% of relative humidity if there is no specific designation (4) The input voltage of the receiver must keep 100~240V, 50/60Hz (5) At first Worker must turn on the SET by using Power Only key. (6) The receiver must be operated for about 5 minutes prior to the adjustment when module is in the circumstance of over 15 ºC 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. 4. MAIN PCBA Adjustments * Download (1) Execute ISP program "Mstar ISP Utility" and then click "Config" tab. (2) Set as below, and then click "Auto Detect" and check "OK" message If display "Error", Check connect computer, jig, and set. (3) Click "Connect" tab. If display "Can't ", Check connect computer, jig, and set. (1) (3) (2) OK Please Check the Speed : To use speed between from 200KHz to 400KHz (4) Click "Read" tab, and then load download file(XXXX.bin) by clicking "Read" (4) filexxx.bin Caution When still image is displayed for a period of 20 minutes or longer (especially where W/B scale is strong. Digital pattern 13ch and/or Cross hatch pattern 09ch), there can some afterimage in the black level area 3. Adjustment items 3.1. Main PCBA Adjustments (1) ADC adjustment : ADC adjustment is OTP (Auto ADC) (2) EDID download : HDMI (5) Click "Auto" tab and set as below (6) Click "Run". (7) After downloading, check "OK" message. (5) Above adjustment items can be also performed in Final Assembly if needed. Both Board-level and Final assembly adjustment items can be check using In-Start Menu (1.Adjust Check). 3.2. Final assembly adjustment (1) White Balance adjustment (2) RS-232C functionality check (3) Factory Option setting per destination (4) Shipment mode setting (In-Stop) (5) GND and HI-POT test (6) AUDIO output check (7) EYE-Q function check (7) ..........OK (6) 3.3. Appendix (1) Shipment conditions (2) Tool option menu (3) USB Download (S/W Update, Option and Service only) (4) Preset CH Information Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 8 - LGE Internal Use Only 4.1. ADC Adjustment 4.1.1. ADC ADC adjustment is needed to find the optimum black level and gain in Analog-to-Digital device and to compensate RGB deviation. ADC adjustment is OTP (Auto ADC) 4.2. EDID Download 4.2.1. Overview - It is a VESA regulation. A PC or a MNT will display an optimal resolution through information sharing without any necessity of user input. It is a realization of "Plug and Play". 4.2.2. Equipment (1) Since EDID data is embedded, EDID download JIG, HDMI cable is not need. (2) Adjust by using remote controller. 4.2.3. Download method(using DFT) * PC(for communication through RS-232C), UART baud rate: 115200 bps Command : aa 00 00 (Start Factory mode) Command : ae 00 10 (Download All EDID) Command : aa 00 90 (End of Factory mode) 4.2.4. Download method (using Service Remocon) (1) Press Adj. key on the Adj. R/C. (2) Select EDID D/L menu. (3) By pressing Enter key, EDID download will begin (4) If Download is successful, OK is display, but If Download is failure, NG is displayed. (5) If Download is failure, Re-try downloads. * Caution: When EDID Download, must remove HDMI Cable. (6) EDID Write confirmation EDID D/L (PCM) HDMI1 : OK HDMI2 : OK 4.2.5. Models for EDID Data Region North America (PCM) FHD / 8bit HDMI 2ea 43LF5100-UA 49LF5100-UA 4.2.6. EDID DATA - 8BIT / FHD / PCM EDID Block 0, Bytes 0-127 [00H-7FH] 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 10 01 19 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80 30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C 40 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30 50 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 E6 EDID Block 1, Bytes 128-255 [80H-FFH] 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00 02 03 19 F1 48 90 22 20 05 04 03 02 01 23 09 57 10 07 67 03 0C 00 10 00 80 1E 02 3A 80 18 71 38 2D 20 40 58 2C 04 05 40 84 63 00 00 1E 01 1D 80 18 71 30 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D 00 40 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E 8C 50 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 63 00 00 60 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 - 8BIT / FHD / AC3 EDID Block 0, Bytes 0-127 [00H-7FH] 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 10 01 19 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80 30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C 40 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30 50 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 E6 EDID Block 1, Bytes 128-255 [80H-FFH] 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00 02 03 1C F1 48 90 22 20 05 04 03 02 01 26 15 07 10 50 09 57 07 67 03 0C 00 10 00 80 1E 02 3A 80 18 20 71 38 2D 40 58 2C 04 05 40 84 63 00 00 1E 01 1D 30 80 18 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 40 01 1D 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 50 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 60 63 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 96 - Checksum PCM HDMI1 HDMI2 not Deep Color, PCM 8Bit_FHD E6 08 E6 F8 AC3 HDMI1 HDMI2 not Deep Color, AC3 + PCM 8Bit_FHD E6 96 E6 86 4.3. Tool Option Input - Input Model Tool Option according to BOM Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 9 - LGE Internal Use Only 5. Final Assembly Adjustment 5.1. White Balance Adjustment 5.1.1. Overview 5.1.1.1. W/B adj. Objective & How-it-works (1) Objective: To reduce each Panel's W/B deviation (2) How-it-works: When R/G/B gain in the OSD is at 192, it means the panel is at its Full Dynamic Range. In order to prevent saturation of Full Dynamic range and data, one of R/G/B is fixed at 192, and the other two is lowered to find the desired value. (3) Adj. condition: normal temperature - Surrounding Temperature: 25±5 ºC - Warm-up time: About 5 Min - Surrounding Humidity: 20% ~ 80% - Before White balance adjustment, Keep power on status, don't power off 5.1.1.2. 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 10cm and perpendicular of the module surface (80°~ 100°) (3) Aging time - After Aging Start, Keep the Power ON status during 5 Minutes. - In case of LCD, Back-light on should be checked using no signal or Full-white pattern. 5.1.2. 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 Remocon (4) Video Signal Generator MSPG-925F 720p/204-Gray (Model:217, Pattern:49) Only when internal pattern is not available Color Analyzer Matrix should be calibrated using CS-1000 5.1.3. Equipment connection Probe Color Analyzer RS - 2 3 2 C RS -232C Signal Source Computer RS - 2 3 2 C Pattern Generator * If TV internal pattern is used, not needed 5.1.4. Adjustment Command (Protocol) (1) RS-232C Command used during auto-adj RS-232C COMMAND CMD ID DATA Wb 00 00 Wb 00 ff Explanation Begin White Balance adj. End White Balance adj. (internal pattern disappears ) Ex) wb 00 00 -> Begin white balance auto-adj. wb 00 10 -> Gain adj. ja 00 ff -> Adj. data jb 00 c0 ... ... wb 00 1f -> Gain adj. complete *(wb 00 20(start), wb 00 2f(end)) -> Off-set adj. wb 00 ff ->End white balance auto adj. (2) Adjustment Map Cool Medium Warm Adj. item 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 R Cut G Cut B Cut Command (lower caseASCII) CMD1 CMD2 j g j h j i j a j b j c j d j e j f Data Range (Hex.) MIN MAX 00 C0 00 C0 00 C0 00 C0 00 C0 00 C0 00 C0 00 C0 00 C0 Default (Decimal) 172 172 192 128 128 128 192 192 192 128 128 128 192 192 172 128 128 128 5.1.5. Adjustment method 5.1.5.1. 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. When you connect the RS232 to set Phone jack, please use 3pin phone jack cable. Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 10 - LGE Internal Use Only 5.1.5.2. Manual adj. method (1) Set TV in Adj. mode using POWER ON (2) Zero Calibrate the probe of Color Analyzer, then place it on the center of LCD module within 10cm of the surface. (3) Press ADJ key -> EZ adjust using adj. R/C -> 6. WhiteBalance then press the cursor to the right (KEY). (When KEY() is pressed 204 Gray(80IRE) 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. * CASE First adjust the coordinate far away from the target value(x, y). 1. x, y > target 1) Decrease the R, G. 2. x, y < target 1) First decrease the B gain, 2) Decrease the one of the others. 3. x > target , y < target 1) First decrease B, so make y a little more than the target. 2) Adjust x value by decreasing the R 4. x < target, y > target 1) First decrease B, so make x a little more than the target. 2) Adjust x value by decreasing the G How to adjust 1.Fix G gain at least 172 Adjust R, B Gain ( In Case of Mostly Blue Gain Saturation) 2. When R or B Gain > 255, Release Fixed G Gain and Readjust * CASE Medium / Warm First adjust the coordinate far away from the target value(x, y). 1. x, y > target 1) Decrease the R, G. 2. x, y < target 1) First decrease the B gain, 2) Decrease the one of the others. 3. x > target, y < target 1) First decrease B, so make y a little more than the target. 2) Adjust x value by decreasing the R 4. x < target, y > target 1) First decrease B, so make x a little more than the target. 2) Adjust x value by decreasing the G 5.1.6. Reference ( White Balance Adj. coordinate and color temperature) Luminance: 204 Gray, 80IRE ** (normal line) Model : For LGD, March ~ December for Gumi, Global Standard color coordinate and temperature using CA-210(CH 14) by aging time NC Aging time 5.0 (Min) Cool x y 271 270 Medium x y 286 289 Warm x y 313 329 1 0-2 282 289 297 308 324 348 2 3-5 281 287 296 306 323 346 3 6-9 279 284 294 303 321 343 4 10-19 277 280 292 299 319 339 5 20-35 275 277 290 296 317 336 6 36-49 274 274 289 293 316 333 7 50-79 273 272 288 291 315 331 8 80-119 272 271 287 290 314 330 9 Over 120 271 270 286 289 313 329 **Model : For LGD, January ~ February for Gumi, Apply not Cinema Screen Standard color coordinate and temperature using CA-210(CH-14) by aging time NC Aging time 5.0 (Min) Cool x y 271 270 Medium x y 286 289 Warm x y 313 329 1 0-2 286 295 301 314 328 354 2 3-5 284 290 299 309 326 349 3 6-9 282 287 297 306 324 346 4 10-19 279 283 294 302 321 342 5 20-35 276 278 291 297 318 337 6 36-49 274 275 289 294 316 334 7 50-79 273 272 288 291 315 331 8 80-119 272 271 287 290 314 330 9 Over 120 271 270 286 289 313 329 ** For INX,AUO,SHARP,CSOT,BOE Module.( In the case of , the color temperature spec of cool mode is 13000K) Cool med warm x y x y x y spec 271 270 286 289 313 329 target 278 280 293 299 320 339 Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 11 - LGE Internal Use Only 5.2. Tool Option setting & Inspection per countries 5.2.1. Overview (1) Tool option selection is only done for models in Non-USA North America due to rating (2) Applied model: LA57A Chassis applied to CANADA and MEXICO 5.2.2. Country Group selection (1) Press ADJ key on the Adj. R/C, and then select Country Group Menu (2) Depending on destination, select US, then on the lower Country option, select US, CA, MX. Selection is done using +, - KEY (3) Using DFT(Auto) * PC (for communication through RS-232C) -> UART Baud rate : 115200 bps - Command : ah 00 00 DATA(Area Number(hexadecimal)) ITEM AREA OPTION1 DATA(Area Number) 0 1 2 AREA USA CANADA MEXICO 5.2.3. Tool Option Inspection - Method : Press Adj. key on the Adj. R/C, then select Tool option. Model 2,3th Suffix 4th Suffix Module Tool 1 Tool 2 Tool 3 Tool 4 43LF5100-UA US Y LGD 01808 21506 41100 16384 49LF5100-UA US Y LGD 02320 21506 41100 16384 5.3. Ship-out mode check (In-stop) After final inspection, press In-Stop key of the Adj. R/C and check that the unit goes to Stand-by mode. 6. GND and HI-POT Test 6.1. GND & HI-POT auto-check preparation (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. Checkpoint (1) Test voltage 1) 3 Poles - GND: 1.5 KV/min at 100 mA - SIGNAL: 3 KV/min at 100 mA 2) 2 Poles - SIGNAL: 3 KV/min at 100 mA (2) TEST time: 1 second (3) TEST POINT 1) 3 Poles - GND Test = POWER CORD GND and SIGNAL CABLE GND. - Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL. 2) 2 Poles - Hi-pot Test = Accessible Metal and LIVE & NEUTRAL. (4) LEAKAGE CURRENT: At 0.5 mArms 7. Audio 7.1. Audio input condition (1) RF input: Mono, 1KHz sine wave signal, 100% Modulation (2) CVBS, Component: 1KHz sine wave signal (0.4Vrms) 7.2. Specification Item Audio practical max Output, L/R (Distortion=10% max Output) Min Typ 4.5 5.0 6.0 6.3 Max Unit Remark (1) Measurement condition 6.0 W EQ Off / AVL Off / 6.9 Vrms Clear Voice Off (2) Speaker (6 Impedance) Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 12 - LGE Internal Use Only 8. USB S/W Download(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, it didn't work. But your downloaded version is Higher, USB data is automatically detecting (Download Version High & Power only mode, Set is automatically Download) (3) Show the message "Copying files from memory" (4) Updating is starting. (5) Updating Completed, the TV will restart automatically. (6) If your TV is turned on, check your updated version and Tool option. (explain the Tool option, next stage) * If downloading version is more high than your TV have, TV can lost all channel data. In this case, you have to channel recover. if all channel data is cleared, you didn't have a DTV/ATV test on production line. * After downloading, have to adjust Tool Option again. (1) Push "IN-START" key in service remote control. (2) Select "Tool Option 1" and push "OK" key. (3) Punch in the number. (Each model has their number) Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 13 - LGE Internal Use Only BLOCK DIAGRAM Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 14 - 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 Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. 400 900 901 540 800 200 LV1 701 700 500 120 Set + Stand A2 A10 Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 15 - LGE Internal Use Only <SOC_RESET> +3.3V_ST C101 4.7uF 10V R104 C103 470K 0.1uF 16V SOC_RESET AR103 4.7K 1/16W AR104 33 1/16W <HW_OPTION> +3.3V_NORMAL R102 FHD 4.7K OPT R101 HD 4.7K MODEL_OPT SUB_NVRAM_ROHM IC100-*1 BR24G512FJ-3 A0 1 A1 2 A2 3 GND 4 VCC 8 WP 7 SCL 6 SDA 5 EEPROM(512KB) NVRAM_ATMEL IC100 AT24C512C-SSHD-T +3.3V_ST A0 1 A1 2 A2 3 GND 4 VCC 8 WP 7 C105 0.1uF 16V R106 R107 2.2K 2.2K SCL 6 AR100 33 1/16W SDA 5 OPT OPT C102 C104 8pF 8pF /FLASH_WP IR CEC/GPIO71 R103 100 IRIN INT/GPIO64/I2S_OUT_MCK SOC_RESET USB_DM USB_DP +3.3V_ST KEY1 KEY2 LED_RED +1.15V_VDDC +1.8V_DDR MODEL_OPT PANEL_CTL COMP_DET AV_DET DDC_SDA2 DDC_SCL2 5V_DET_HDMI1 POWER_ON/OFF 5V_DET_HDMI2 DDC_SDA1 DDC_SCL1 HPD1 R123 R108 AR102 33 1/16W R126 R127 AR101 33 1/16W RESET DM_P0 DP_P0 AVDD_MOD_3 SAR0/GPIO75 SAR1/GPIO74 SAR2/GPIO73 VDDC_4 VDDIO_DATA GPIO54 10K GPIO55 1K GPIO84 GPIO83 DDCDA_DAT DDCDA_CLK 10K GPIO67 GPIO70 10K GPIO86 DDCDB_DAT DDCDB_CLK HOTPLUG_B EFUSE +1.15V_VDDC CK-_HDMI1 CK+_HDMI1 D0-_HDMI1 D0+_HDMI1 D1-_HDMI1 D1+_HDMI1 VDDC_5 RXCN_B RXCP_B RX0N_B RX0P_B RX1N_B RX1P_B [EP] 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 I2C_SCL I2C_SDA RX2P_B RX2N_B 1 SERIAL FLASH(64MB) +3.3V_ST R100 10K /FLASH_WP /SPI_CS SPI_SDO OPT IC101 R105 W25Q64FVSSIG 4.7K CS 1 VCC 8 DO[IO1] 2 %HOLD[IO3] 7 WP[IO2] 3 CLK 6 GND 4 DI[IO0] 5 C106 0.1uF 16V SPI_SCK SPI_SDI 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. 2 AVDD_MOD_1 3 THERMAL 129 RXCN_A 4 RXCP_A 5 RX0N_A 6 RX0P_A 7 OPT C107 2.2uF OPT R111 10K R110 1K R119 <Chip config.> 1K R124 4.7K AR105 33 1/16W R128 100 AR108 33 1/16W [M1L] 128 PIN IC102 MSD8222LUM 19 20 21 22 23 24 25 26 25V CVBS_OUT1 VCOM CVBS0 RIN1P GIN1M GIN1P SOGIN1 BIN1P AVDD3P3_ADC 18 VSYNC0 17 RIN0P 16 GIN0M 15 GIN0P 14 BIN0P 13 HSYNC0 12 RX2P_A 11 RX2N_A 10 RX1P_A 9 RX1N_A 8 25V 0.047uF 25V 0.047uF 25V 0.047uF 25V 0.047uF 50V 0.047uF 25V 1000pF 0.047uF TP101 R112 33 C110 AR109 33 C111 C112 R113 68 C113 R114 33 C114 R115 150 C115 R116 180 C117 D2-_HDMI1 D2+_HDMI1 +3.3V_ST CK-_HDMI2 CK+_HDMI2 D0-_HDMI2 D0+_HDMI2 D1-_HDMI2 D1+_HDMI2 D2-_HDMI2 D2+_HDMI2 +3.3V_ST COMP_Pb+ COMP_Y+ COMP_Pr+ COMP_Y+ +1.15V_VDDC +3.3V_ST COMP_R_IN COMP_L_IN 96 TESTPIN 95 DDCA_CK 94 DDCA_DA 93 SPI_CK 92 SPI_CZ 91 SPI_DI 90 SPI_DO 89 PWM0/GPIO15 88 PWM1/GPIO14 87 HOTPLUG_A 86 GPIO0 85 GPIO1 84 GPIO2 83 GPIO4 82 GPIO5 81 GPIO6 80 GPIO7 79 LVB0M 78 LVB0P 77 LVB1M 76 LVB1P 75 LVB2M 74 LVB2P 73 AVDD_LPLL 72 LVBCLKM 71 LVBCLKP 70 LVB3M 69 LVB3P 68 GPIO28 67 GPIO29 66 LVA0M 65 LVA0P SPI_SCK /SPI_CS SPI_SDI SPI_SDO HPD2 I2C_SCL I2C_SDA INV_CTL AMP_RESET AMP_SCL AMP_SDA RXB3RXB3+ RXBCKRXBCK+ RXB2RXB2+ +3.3V_ST RXB1RXB1+ RXB0RXB0+ RXA3RXA3+ +3.3V_ST PM_RXD PM_TXD BLU_CURRENT_CTL PWM_DIM VDDC_1 27 AVDD_AU33 28 LINEIN_R0 29 2.2uF 10V C123 LINEIN_L0 30 2.2uF 10V C124 LINEIN_R1 31 LINEIN_L1 32 <MAIN SoC Vcc> +3.3V_ST +3.3V_ST C131 C121 10uF 6.3V C127 1uF 0.1uF 16V 10V AVDD_MOD C132 0.1uF 16V C139 0.1uF 16V C140 0.1uF 16V +1.15V_VDDC C120 10uF 6.3V C126 1uF 10V C129 0.1uF 16V C130 0.1uF 16V C137 0.1uF 16V C138 0.1uF 16V +1.8V_DDR DDR_CMD C119 C118 0.1uF OPT 10uF 16V C125 6.3V 0.1uF 16V DDR_DATA C136 C135 10uF 6.3V 0.1uF 16V C141 0.1uF 16V AVDD_DADC C147 0.1uF 16V AVDD_AU33 C146 0.1uF 16V AVDD_DMPLL C145 0.1uF 16V AVDD_VIDEO C144 0.1uF 16V AVDD_LPLL C108 0.1uF 16V C155 0.1uF 16V C156 0.1uF 16V LVA1M 64 RXACK- LVA1P 63 RXACK+ LVA2M 62 RXA2- LVA2P 61 RXA2+ LVACLKM 60 RXA1- LVACLKP 59 RXA1+ LVA3M 58 RXA0- LVA3P 57 RXA0+ GPIO53/I2S_OUT_SD 56 AUD_LRCH GPIO52/I2S_OUT_BCK 55 AUD_SCK GPIO51/I2S_OUT_MCK 54 AUD_MASTER_CLK GPIO50/I2S_OUT_WS 53 AUD_LRCK GPIO49/SPDIF_OUT 52 AR110 1/16W GPIO47 TP102 100 51 USB_CTL GPIO46 USB_OCD 50 GPIO45/I2C_SCLM/UART_RX1 49 TU_SCL GPIO44/I2C_SDAM/UART_TX1 48 TU_SDA VDDC_3 47 +1.15V_VDDC VDDC_2 46 +1.15V_VDDC VDDIO_CMD 45 +1.8V_DDR AVDD_MOD_2 44 +3.3V_ST XTAL_OUT 43 XTAL_IN 42 AVDD3P3_DMPLL 41 +3.3V_ST AVDD3P3_DADC 40 +3.3V_ST VIFM 39 R117 0 C134 0.1uF 16V IF_N_MSTAR VIFP 38 R118 0 C142 0.1uF 16V IF_P_MSTAR IFAGC 37 C153 C154 33pF 33pF Closed to SoC LINEOUT_R3 36 LINEOUT_L3 35 VRM_ADC 34 +3.3V_NORMAL VAG 33 L109 C149 PZ1608U121-2R0TF 0.1uF 16V C128 0.1uF 16V R122 X101 1M 24MHz X-TAL_1 GND_2 1 4 GND_1 2 X-TAL_2 3 C151 8pF Closed to SoC C152 8pF R120 10K C133 10uF 6.3V R121 100 IF_AGC_MAIN L103 PZ1608U121-2R0TF C150 0.047uF 25V Closed to Main SoC Each Pin Close to MSTAR L15.5_M1L128P MAIN 141215 1 6 L15.5 NA POWER BLOCK +3.3V_STANBY +19V to +3.3V_STANDBY JK201 KJA-DC-1-0032 44 22 11 +19V Surge protection D605 20V C203 68uF 35V C204 10uF 25V R202 47K C205 0.1uF 25V IC203 MP2315GJ R207 100K AAM 1 FB 8 N E W I N 2 VCC 7 3 A S W 3 EN/SYNC 6 GND 4 BST 5 20130528 cJ.LIM R205 68 C209 0.1uF 50V R208 20K C212 0.1uF 25V R213 56K DEV_COIL L202 4.7uH C215 10uF 10V C218 10uF 10V C224 22uF 10V X5R => X7R To improve CST Issue 2013.12.21 by GH.Song C238 0.1uF 25V R214 2K 1% R215 1.2K 1% R216 1K 1% +3.3V_ST ZD202 5V 2013.08.07 5.6B->5V OPT->APPLY +12V to PANEL_VCC +12V PANEL_VCC L203 UBW2012-121F 120OHM OPT C241 0.1uF 25V PANEL_CTL R217 10K R218 10K Q202 SSM3J332R S G D R219 33K C242 0.22uF 25V R220 120K C TR_NXP B Q201 B MMBT3904(NXP) E R221 R222 5.6K 5.6K C TR_KEC Q201-*1 2N3904S E +3.3V_ST to +3.3V_NORMAL FET_AOS Q204-*1 AO3435 S G D POWER_ON/OFF +3.3V_ST R224 4.7K R232 22K FET_TOSHIBA Q204 SSM3J332R L204 BLM18PG121SN1D S G D C244 2.2uF 10V C246 0.1uF 16V C247 22uF 10V +3.3V_NORMAL TVS_SEMTECH ZD206 5V R233 2.2K R225 10K B BOOST_EN C TR_NXP Q203 B MMBT3904(NXP) E C TR_KEC Q203-*1 2N3904S E C248 10uF 10V OPT C249 10uF 10V TVS_KEC ZD206-*1 +1.8V_DDR +3.3V_NORMAL IC204 AZ1117EH-ADJTRG1 IN OUT +1.8V_DDR C243 10uF 6.3V ADJ/GND R236 330 1% R1 C245 10uF 6.3V ZD205 2.5V R237 150 R2 1% Vout=1.25*(1+R2/R1)+I(ADJ)XR2 +12V +19V 19V TO PANEL VCC(12V) DCDC CONVERTER R201 100K C201 10uF 25V C202 0.1uF 25V IC201 MP2315GJ AAM 1 FB 8 OPT C207 0.47uF 16V N E W I N 2 VCC 7 3 A S W 3 EN/SYNC 6 GND 4 BST 5 20130528 cJ.LIM OPT R203 68 R204 47K R206 10K POWER_ON/OFF DEV_COIL L201 10uH R209 56K C208 0.1uF 25V C210 10uF 16V C211 10uF 16V C213 10uF 16V C214 0.1uF 25V R210 11K 1% R211 3.3K 1% C206 0.1uF 50V R212 1K 1% +12V OPT ZD201 15V +5V_Normal & +1.15V_VDDC +3.3V_ST +3.3V_ST R239 R240 1 1 1/4W 1/4W C226 10uF 10V C223 0.1uF 16V ** 3.3V_ST -> 1.15V VDDC V0 = 0.8*(1+(R2/R1)) IC202 AP7173-SPG-13 HF(DIODES) [EP] IN 1 PG 2 VCC 3 R226 10K EN 4 THERMAL 9 OUT 8 FB 7 SS 6 GND 5 C222 560pF 50V R234 3K R2 1% R230 6.8K R1 1% C228 10uF 10V C216 10uF 10V +1.15V_VDDC OPT C217 10uF 10V OPT ZD203 2.5V Add for improving main IC burnt issue ** 3.3V_M -> 1.8V_M +19V C219 2.2uF 25V C221 0.1uF 50V R227 47K IC205 MP2315GJ AAM 1 FB 8 +3.3V_NORMAL R223 10K IN 2 VCC 7 SW MPS EN/SYNC 3 6 GND 3A BST 4 5 R231 68 R235 10K C225 0.1uF 50V C220 0.1uF 16V C227 0.1uF 16V R238 56K L206 4.7uH C230 10uF 10V C232 10uF 10V C233 0.1uF 16V +5V_NORMAL R242 820 1% R243 4.7K 1% R244 1K 1% 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. L15.5_M1L128P POWER 141215 2 6 AUDIO AMP(TI)/LVDS/IR IR [51Pin LVDS Connector] (For FHD 60Hz) FHD P300 SP14-11592-01-51Pin 1 2 3 4 5 6 7 8 9 10 11 12 RXA0+ 13 RXA0- 14 RXA1+ 15 RXA1- 16 RXA2+ 17 RXA2- 18 19 RXACK+ 20 RXACK- 21 22 RXA3+ 23 RXA3- 24 25 R300 0 26 OPT R320 0 27 OPT 28 RXB0+ 29 RXB0- 30 RXB1+ 31 RXB1- 32 RXB2+ 33 RXB2- 34 35 RXBCK+ 36 RXBCK- 37 38 RXB3+ 39 RXB3- 40 41 42 OPT AR300 43 0 PANEL_VCC 44 45 L300 46 UBW2012-121F 47 48 HD_PANEL_VCC 49 50 C300 10uF 16V C301 0.1uF 16V 51 52 [30Pin LVDS Connector] (For HD 60Hz_Normal) OPT P301 10031HR-30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 RXA0+ RXA0- RXA1+ RXA1RXA2+ RXA2RXACK+ RXACKRXA3+ RXA3- HD_PANEL_VCC +3.3V_ST KEY1 KEY2 AR502 10K 1/16W OPT C337 0.1uF 16V R325 100 OPT VR301 +3.3V_ST L307 PZ1608U121-2R0TF LED_RED C335 0.1uF 16V C336 1000pF 50V OPT VR300 IR +3.3V_ST OPT R322 3.3K C339 100pF 50V OPT VR303 P303 12507WR-06L 1 2 3 4 5 6 7 R303 0 1/16W Separate DGND AND AVSS +19V +19V_AMP L301 OPT C345 0.1uF 50V 120OHM C307 0.1uF 50V +3.3V_NORMAL +3.3V_NORMAL AUD_MASTER_CLK R305 4.7K C305 0.1uF 16V AMP_SDA AMP_SCL C302 1000pF 50V +3.3V_NORMAL AR301 4.7K 1/16W AUD_LRCK AUD_SCK AUD_LRCH AMP_RESET This parts are Located on AVSS area. C311 4700pF C310 R310 0.047uF 470 R311 470 C313 4700pF C314 0.047uF C315 2200pF 50V C318 0.033uF 50V +19V_AMP C320 C322 0.1uF 10uF 50V 25V 1 OUT_A 2 PVDD_AB_1 3 PVDD_AB_2 4 BST_A 5 NC_1 6 SSTIMER 7 NC_2 8 PBTL 9 AVSS 10 PLL_FLTM 11 PLL_FLTP 12 VR_ANA R309 R308 C309 0.1uF 16V AVDD 13 2.2K A_SEL_FAULT 14 MCLK 15 18K 1% OSC_RES 16 DVSSO 17 VR_DIG 18 PDN 19 LRCLK 20 SCLK 21 SDIN 22 SDA 23 SCL 24 IC300 TAS5733 49 THERMAL [EP] 48 PGND_AB_2 47 PGND_AB_1 46 OUT_B 45 NC_6 44 NC_5 43 BST_B 42 BST_C 41 NC_4 40 NC_3 39 OUT_C 38 PGND_CD_2 37 PGND_CD_1 RESET 25 STEST 26 DVDD 27 DVSS 28 GND 29 AGND 30 VREG 31 GVDD_OUT 32 BST_D 33 PVDD_CD_1 34 PVDD_CD_2 35 OUT_D 36 C308 0.1uF 16V +19V_AMP +3.3V_NORMAL C316 0.1uF 16V C321 C323 0.1uF 50V 10uF 25V OPT ZD300 5V C312 0.1uF 16V C317 C319 1uF 0.033uF 16V 50V AUDIO AMP(TI) R312 1/16W 18 1% C326 330pF 50V R313 18 C327 330pF 50V 1/16W 1% C324 0.033uF 50V C325 0.033uF 50V R314 1/16W 18 1% C328 330pF 50V C329 330pF 50V R315 1/16W 18 1% DEV_COIL L304 10uH DEV_COIL L306 10uH DEV_COIL L303 10uH DEV_COIL L305 10uH C330 0.33uF 50V C332 0.1uF 50V C333 0.1uF 50V C331 0.33uF 50V C334 0.1uF 50V C340 0.1uF 50V Close to Speaker SPK_L+ OPT C341 2200pF 50V OPT C342 2200pF 50V SPEAKER_L OPT C343 2200pF 50V OPT C344 2200pF 50V SPK_LSPK_R+ SPK_L+ SPK_LSPK_R+ SPK_R- SPEAKER_R P304 250A1-WR-H04M 4 3 2 1 SPK Wafer Box Type SPK_R- 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. L15.5_M1L128P LVDS/S_AMP/IR 141215 3 6 EXTERNAL INTERFACE AV/COMPONENT JK401 PPJ245N2-01 6E [RD2]E-LUG 5E [RD2]O-SPRING 4E [RD2]CONTACT 5D [WH]O-SPRING 4C [RD1]CONTACT 5C [RD1]O-SPRING 7C [RD1]E-LUG-S 5B [BL]O-SPRING 4A [GN/YL]CONTACT 5A [GN/YL]O-SPRING 6A [GN/YL]E-LUG VR403 OPT R402 470K R409 10K OPT C402 1000pF 50V R408 12K COMP_R_IN VR401 OPT R401 470K R406 10K OPT C401 1000pF 50V OPT VR402 R407 12K COMP_L_IN +3.3V_NORMAL AR401 10K 1/16W COMP_DET ZD404 ZD405 OPT VA402 ICVS0518150FR_ R405 75 1% comp-shape=1005 COMP_Pr+ ZD402 ZD403 OPT VA401 ICVS0518150FR_ R404 75 1% comp-shape=1005 COMP_Pb+ OPT VR400 ZD401 ZD400 OPT R403 VA400 75 1% ICVS0518150FR_ comp-shape=3216 AV_DET COMP_Y+ UART For JK402 PEJ034-01 3 E_SPRING DEBUG 4 R_SPRING 5 T_SPRING 7B B_TERMINAL2 6B T_TERMINAL2 AR402 100 1/16W PM_RXD PM_TXD +3.3V_ST R423 0 OPT C423 0.1uF 16V P402 12507WS-04L 1 2 3 4 5 USB(REAR) JK403 US-04A-VSD 1 2 3 4 5 OPT C403 22uF C404 10uF 10V OPT ZD406 5V R411 14K IC401 BD2242G VOUT 6 ILIM 5 OC 4 VIN 1 GND 2 EN 3 RCLAMP0502BA OPT D400 OPT C413 5pF 50V OPT C414 5pF 50V USB_DM USB_DP +5V_NORMAL R421 10K C405 0.1uF 16V +3.3V_NORMAL USB_CTL R422 4.7K USB_OCD 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. HDMI1(REAR) OPT R414 10K JK404 EAG59023302 GND SHIELD 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 HP_DET 5V GND DDC_DATA DDC_CLK NC CE_REMOTE CKCK_GND CK+ D0D0_GND D0+ D1D1_GND D1+ D2D2_GND D2+ R410 1K R413 2.7K OPT VR404 C TR_NXP Q400 MMBT3904(NXP) R418 B 10K OPT VR408 E C 5V_DET_HDMI1 E TR_KEC B Q400-*1 2N3904S +5V_NORMAL AR410 4.7K 1/16W VR409 OPT R416 4.7K OPT OPT VR410 VR412 AR406 AR407 5.1 1/16W 5.1 1/16W AR408 AR409 5.1 1/16W 5.1 1/16W CK-_HDMI1 CK+_HDMI1 D0-_HDMI1 D0+_HDMI1 D1-_HDMI1 D1+_HDMI1 D2-_HDMI1 D2+_HDMI1 HPD1 DDC_SDA1 DDC_SCL1 HDMI2(REAR) OPT R417 10K JK400 GND SHIELD 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 HP_DET 5V GND DDC_DATA DDC_CLK NC CE_REMOTE CKCK_GND CK+ D0D0_GND D0+ D1D1_GND D1+ D2D2_GND D2+ R412 1K R415 2.7K OPT VR405 C TR_NXP Q401 MMBT3904(NXP) R420 B 10K OPT VR406 E C 5V_DET_HDMI2 E TR_KEC B Q401-*1 2N3904S +5V_NORMAL AR411 4.7K 1/16W VR407 OPT R419 4.7K OPT OPT VR411 VR413 AR400 AR403 5.1 1/16W 5.1 1/16W AR404 AR405 5.1 1/16W 5.1 1/16W CK-_HDMI2 CK+_HDMI2 D0-_HDMI2 D0+_HDMI2 D1-_HDMI2 D1+_HDMI2 D2-_HDMI2 D2+_HDMI2 HPD2 DDC_SDA2 DDC_SCL2 EAG59023302 JP422 JP423 JP424 JP425 L15.5_M1L128p COMP/USB/SPDIF 141515 4 6 Tuner On-Board for ATSC 3.3V_NORMAL -> 3.3V_TU OPT C586 4.7uF 10V C587 4.7uF 10V OPT C588 4.7uF 10V OPT C589 4.7uF 10V DEVEL NT-0324 JK501 1 2 L501 270nH C501 47pF 50V L502 270nH C503 180pF 50V R503 0 D501 D5V0X1B2LP-7B 7V OPT +3.3V_TU TU_SDA TU_SCL R502 1.8K R501 1.8K OPT C505 20pF 50V OPT C512 20pF 50V IF_AGC_MAIN should be guarded by ground 50V 180pF C514 50V 180pF C515 C516 1200pF 50V L506 270nH 5% L507 270nH 5% L504 270nH 5% L505 270nH 5% AR501 33 1/16W C517 15pF 50V C518 15pF 50V close to the tuner pin C506 0.1uF 16V +3.3V_NORMAL +3.3V_TU C507 0.1uF 16V L500 PZ1608U121-2R0TF C508 22uF 6.3V C509 22uF 6.3V C510 0.1uF 16V [EP]GND GPIO1 24 ADDR 23 RF_IN 22 GND_4 21 RF_IP 20 RF_REF 19 Close to Pin #17 GPIO2 1 THERMAL SDA 2 25 SCL 3 AGC2 4 IC501 SI2151 AGC1 5 GND_1 6 NC 18 VDDH_3 17 GND_3 16 VDDH_2 15 XTAL_O 14 XTAL_I 13 C523 0.1uF 16V GND_2 4 X-TAL_2 3 X501 24MHz +3.3V_TU Eachone close to #9, #15, #17 C520 1200pF 50V C521 1200pF 50V C522 1200pF 50V VDDL 7 GND_2 8 VDDH_1 9 LIF_N 10 LIF_P 11 XOUT 12 X-TAL_1 1 GND_1 2 C526 1uF 16V C519 1000pF 50V OPT C502 33pF OPT C504 33pF R505 200 1/16W C585 0.1uF 16V R506 200 1/16W C584 0.1uF 16V Close to the RF IC R584 33 1/16W 5% R585 33 1/16W 5% C511 33pF C513 33pF IF_P_MSTAR IF_N_MSTAR 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. L15.5_M1L128P TUNER_ON_B/D 141215 5 6 TOTAL LED DRIVER BLOCK R690 0 R691 0 R692 0 R693 0 GND_SPLIT_OPT GND_SPLIT_OPT GND_SPLIT_OPT R695 0 R696 0 R697 0 GND_SPLIT_OPT GND_SPLIT_OPT R694 0 R699 0 R700 0 BOOST_EN 43inch R630 0 1/4W +19V C631 47uF 25V C632 10uF 25V OPT C633 0.1uF 50V C636 100pF 50V R635 220K 1/16W IC605 TPS40210DGQR [EP] L605 33uH D601 MBRD10U100CT A1 C A2 C642 33uF 100V R636 30K 1/16W To Improve EMI Issue C628 100V 220pF C641 100V 220pF OPT C629 100V 220pF REDUCE RIPPLE CURRENT C643 33uF 100V C644 33uF 100V C645 R646 100K 1uF 1/8W 50V OPT C666 4.7uF 50V C646 1uF 50V R647 100K 1/8W OPT C667 4.7uF 50V R631 1K RC 1 R634 10K C637 0.22uF SS 2 1/16W 16V DIS/EN 3 COMP 4 FB 5 C634 0.033uF 50V C635 470pF 50V R632 18K 1% R633 1K 1% THERMAL 11 VDD 10 BP 9 GDRV 8 ISNS 7 GND 6 R637 47 R639 47 R640 3.3 R641 3.9K 1% R642 47 R644 R684 47 47 G D Q605 AOD478 S C638 1uF 25V C639 C640 0.1uF 330pF 50V 50V R638 3.9K 1% R643 0.1 1W R645 0.1 1W 121211 1K -> 3.9K 220p -> 330p R649 47K 1/16W VOUT = VREF*(1+47K/680) R648 = 0.7 *(1+47K/680) 680 = 49V 1/8W 1% R698 1.8K 1/16W 5% REDUCE INDUCTOR TEMP ISSUE VOUT#1=49V L606 33uH L607 33uH To Improve EMI Issue 49inch D603 UF3D(SUZHOU GRANDE) +3.3V_NORMAL C654 100V 220pF C655 100V 220pF C657 100V 220pF C658 100V 220pF 32_43inch D604 BR210 100V R666 R667 R668 R669 R670 R671 R672 R678 R680 R681 100 100 100 100 100 100 100 100 100 100 OPT R650 10K R654 3K R659 1K R651 10K B C 1% Q606 MMBT3904(NXP) R662 100K 1% C653 1000pF 50V IC606 DT1641AS [EP]GND +19V D 49inch Q607 G SMK630D G INV_CTL 49inch R653-*1 E 150K 32_43inch 1/8W R653 R656 1% 120K 270K EN 1 OVP 2 S VIN 24 C600 1uF VREF C656 23 1uF 25V THERMAL 25 1/8W 1% 43inch 1/8W 1% 49inch 32inch R660 30K 1% C652 1000pF 50V NC_1 3 CS 22 25V R660-*2 13K 1% R660-*1 8.2K 1% PGND_1 4 NDRV 21 R675 3.3 PWM_DIM R652 100 R655 100K C649 100pF 50V OPT R661 100K PGND_2 5 PDIM 6 RISET 7 RSS 20 COMP 19 RT 18 1/16W R676 R679 220K 1% 30K 1% C659 4700pF 50V BLU_CURRENT_CTL 49inch R663-*2 27K 1% 49inch R664-*2 2.7K 1% 43inch R663-*1 12K 1% 43inch R664-*1 10K 1% 32inch R663 15K 1% 32inch R664 3.6K 1% LS8 8 LS7 9 LS6 10 LS1 17 LS2 16 LS3 15 R677 C660 1.5K 0.1uF 1% 25V R673 39K 1% R682 0.1 1% 1W 10K LS5 11 NC_2 12 LS4 14 LGND 13 R674 1.5K 1% D 32_43inch Q607-*1 AOD478 S R665 ZD605 33V FIRST BOOST UP P602 SMAW200-04 1 2 3 4 VOUT#2 C647 33uF 49inch 43inch R601 R602 0 0 32_43inch R603 0 43_49inch C648 33uF 49inch C661 4.7uF 50V 49inch C662 4.7uF 50V 49inch C663 4.7uF 50V 43_49inch C664 1uF 100V 49inch C668 32inch 1uF C664-*1 100V 4.7uF 50V 49inch C665 1uF 32_43inch 100V C665-*1 0 1/4W 5% 49inch C669 1uF 100V 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. L15.5_M1L128P LED_DRIVER 141215 6 6 L15(LF51) TROULE SHOOTING GUIDE Contents of LCD TV Standard Repair Process * First of all, Check whether there is SVC Bulletin in GCSC System for these model. No. Error symptom (High category) 1 2 3 A. Video error 4 5 6 B. Power error 7 8 C. Audio error 9 10 D. Function error 11 12 E. Noise 13 F. Exterior error Error symptom (Mid category) No video/Normal audio No video/No audio Tuning fail, Picture broken/ Freezing Color error Vertical/Horizontal bar, residual image, light spot, external device color error No power Off when on, off while viewing, power auto on/off No audio/Normal video Wrecked audio/discontinuation/noise Remote control & Local switch checking External device recognition error Circuit noise, mechanical noise Exterior defect Page 1 2 3, 4 5 6 7 8 9 10 11 12 13 14 Remarks Standard Repair Process Error Symptom LCD TV Content A. Video Error No video / Normal audio Established date 2015.04.17 1/14 Revised date First of all, Check whether all of cables between board is inserted properly or not. (Main B/D Adaptor, LVDS Cable, Speaker Cable, IR B/D Cable...) No video Normal audio Normal Y Audio A1 Check Back Light On with naked eye Y On A4 Check LVDS 12 V of Main B/D N N A2 Move to No video/No audio Check Main B/D to LED Back light Voltage Normal Y Voltage N Replace T-con B/D or Module Replace Main B/D or Repair parts Y Normal Voltage N Replace Main B/D or Repair parts Change Module Precaution A3 & A6 Always check & record S/W Version and White Balance value before replacing the Main Board Replace Main Board Re-enter White Balance value Standard Repair Process Error Symptom LCD TV Content A. Video Error No video / No audio No video / No audio A13 Check voltage 19V of Adaptor Normal Y Voltage N Replace Adaptor Replace Main B/D or Repair parts Established date 2015.04.17 2/14 Revised date Standard Repair Process Error Symptom LCD TV Content A. Video Error Tuning fail, Picture broken/freezing Established date 2015.04.17 3/14 Revised date A5 Check RF Signal level . By using Digital signal level meter . By using Diagnostics menu on OSD ( Menu Customer Support(red button on remote control) Signal Test ) - Signal strength (Normal : over 50%) - Signal quality (Normal : over 50%) Normal Y Signal N Check RF Cable Connection 1. Reconnection 2. Install Booster Check whether other equipments have problem or not. (By connecting RF Cable at other equipment) DVD Player ,Set-Top-Box, Different maker TV etc` Normal Y Picture N A6 Check S/W Version Normal N Picture Y Contact with signal distributor or broadcaster (Cable or Air) End SVC N Bulletin Y S/W Upgrade Normal N Picture Y End Check Tuner soldering Normal Y Picture End N Replace Main B/D Standard Repair Process Error Symptom LCD TV Content A. Video Error Tuning fail, Picture broken/freezing A5 Check RF Signal level Check RF signal cable (DVB satellite signal or not) Check whether other equipments have problem or not. (By connecting RF Cable at other equipment) Set-Top-Box, Different maker TV etc Normal Y Signal N Check satellite setting. - Check LNB frequency - Check satellite - Check Satellite connection (DiSEqC, motor, etc...) Normal Y Setting N A6 Check S/W Version Established date 2015.04.17 4/14 Revised date SVC N Bulletin Y Check Tuner soldering Replace Main B/D Contact with signal distributor or broadcaster (Cable or Air) Change satellite setting (match with installed ANT) Normal N Picture Y End S/W Upgrade Normal N Picture Y End Standard Repair Process Error Symptom LCD TV Content A. Video Error Color error Established date 2015.04.17 5/14 Revised date A7 Check color by input - External Input (COMPONENT/AV/HDMI) A10 Check Test pattern Color Y error N A8 / A9 Check and replace Link Cable (LVDS) and contact condition Check error color input mode External Input Compon ent, HDMI error Y Color error N Replace Main B/D Check external device and cable Y Color error N End External device/ Y Cable Normal N Request repair for external device/cable Replace module Replace Main B/D Standard Repair Process LCD TV Error Symptom Content A. Video Error Vertical/Horizontal bar, Residual Image, Light spot, External device Color error Established date 2015.04.17 6/14 Revised date Vertical/Horizontal bar, residual image, light spot A7 Check color condition by input - External Input (Component/AV/HDMI) A10 Check Test pattern Check external Screen Y device normal connection condition N Replace Module A8/ A9 Screen Y normal N Check and replace Link Cable Request repair for external device Screen N normal Y End Replace Main B/D Replace Module N Screen normal Y End External device screen error-Color error Check S/W Version Check Y Version N Check screen condition by input -External Input (Component/AV/ HDMI) External Y Input error N Connect other external device and cable (Check normal operation of External Input, Component and HDMI by connecting Jig, pattern Generator, Set-top Box etc. Screen N normal Y Replace Main B/D S/W Upgrade End Request repair for external device Normal N Screen Y End Standard Repair Process Error Symptom LCD TV Content A11 Check Power LED Stand-By : Red Power Y LED On N Check Adaptor/ Power cord was inserted properly Power Y LED On N A17 Check ST-BY 3.5V B. Power Error No power DC Power on by pressing Power Key On Remote control Established date 2015.04.17 7/14 Revised date Normal N Operati on Y End Replace Main B/D Y Normal Voltage N Replace Adaptor or Main B/D Standard Repair Process Error Symptom LCD TV Content B. Power Error Off when on/off while viewing, power auto on/off Check outlet Check A/C cord Check for all 3- phase power out Error N Y A14 Check Power Off Mode Fix A/C cord & Outlet and check each 3 phase out A13 (If Power Off mode is not displayed) Check Adaptor voltage CPU Abnorm al Abnorm al1 Normal Y Voltage N Replace Adaptor Established date 2015.04.17 Revised date Replace Main B/D Y Normal End N Replace Adaptor Replace Main B/D 8/14 * Please refer to the all cases which can be displayed on power off mode. Status Power off List "POWEROFF_REMOTEKEY" "POWEROFF_OFFTIMER" "POWEROFF_SLEEPTIMER" "POWEROFF_INSTOP" "POWEROFF_AUTOOFF" Normal "POWEROFF_ONTIMER" "POWEROFF_RS232C" "POWEROFF_RESREC" "POWEROFF_RECEND" "POWEROFF_SWDOWN" "POWEROFF_UNKNOWN" "POWEROFF_ABNORMAL1" Abnormal "POWEROFF_CPUABNORMAL" Explanation Power off by REMOTE CONTROL Power off by OFF TIMER Power off by SLEEP TIMER Power off by INSTOP KEY Power off by AUTO OFF Power off by ON TIMER Power off by RS232C Power off by Reservated Record Power off by End of Recording Power off by S/W Download Power off by unknown status except listed case Power off by abnormal status except CPU trouble Power off by CPU Abnormal Standard Repair Process Error Symptom LCD TV Content C. Audio Error No audio / Normal video No audio Screen normal A15 Check user Connection from Main Speaker Cable Connec Y tion N Replace Speaker or Main B/D Insert wafer SPK Cable Normal N Audio Y End Established date 2015.04.17 9/14 Revised date Standard Repair Process Error Symptom LCD TV Content C. Audio Error Wrecked audio / Discontinuation / Noise Established date 2015.04.17 10/14 Revised date Check input signal -RF -External Input Y Signal Normal N Wrecked Audio/ Discontinuation/ Noise for all audio Wrecked Audio/ Discontinuation/ Noise only for D-TV Wrecked Audio/ Discontinuation/ Noise only for Analog Check and replace speaker and connector A13 Check Voltage 19V of Adaptor Replace Main B/D Normal Y Voltage N Replace Adaptor (When RF signal is not received) Request repair to external cable/ANT provider (In case of External Input signal error) Check and fix external device Wrecked Audio/ Discontinuation/ Noise only for External Input Connect and check other external device Replace Main B/D End N Normal Audio Y Check and fix external device Standard Repair Process Error Symptom LCD TV Content D. Function Error Remote control & Local switch checking Established date 2015.04.17 11/14 Revised date Check R/C itself Operation Normal Y Operating N A17 Check & Repair Cable connection Connector solder Check R/C Operating When turn off light in room Check & Replace Baterry of R/C If R/C operate, Explain the customer cause is interference from light in room. Normal Y Operating End N Replace R/C A17 Normal N Check 3.5V Operating On Main B/D Normal Y Voltage A17 Check IR Output signal Y End N A13 Check Voltage 19V of Adaptor Replace Main B/D Y Normal Signal N Replace IR B/D Standard Repair Process Error Symptom LCD TV Content D. Function Error External device recognition error Established date 2015.04.17 12/14 Revised date Check input signal Check technical Signal Y information Input - Fix information - S/W Version N Check and fix external device/cable Technical N information Y Fix in accordance with technical information External Input and Component Recognition error HDMI Recognition error Replace Main B/D Standard Repair Process Error Symptom LCD TV Content E. Noise Circuit noise, Mechanical noise Established date 2015.04.17 13/14 Revised date Identify nose type Circuit noise Check location of noise Replace Main Board Mechanical noise Check location of noise Mechanical noise is a natural phenomenon and apply the 1st level description. When the customer does not agree, apply the process by stage. Describe the basis of the description in "Part related to nose" in the Owner's Manual. When the nose is severe, replace the module (For models with fix information, upgrade the S/W or provide the description) or If there is a "Tak Tak" noise from the cabinet, refer to the KMS fix information and then proceed as shown in the solution manual (For models without any fix information, provide the description) Standard Repair Process Error Symptom LCD TV Content F. Exterior Defect Exterior defect Zoom part with exterior damage Module damage Replace module Cabinet damage Remote Controller damage Stand damage Replace cabinet Replace remote controller Replace stand Established date 2015.04.17 14/14 Revised date Contents of LCD TV Standard Repair Process Detail Technical Manual * First of all, Check whether there is SVC Bulletin in GCSC System for these model. No. Error symptom 1 2 A. Video error_ No video/Normal audio 3 4 6 A. Video error_ No video/Video lag/stop 7 9 10 A. Video error_Color error 11 12 13 14 A. Video error_Vertical/Horizontal bar, residual image, light spot 15 16 17 <Appendix> 18 Defected Type caused by T-Con/ Inverter/ Module 19 20 Content Check LCD back light with naked eye LED driver B+ 24V measuring method Check White Balance value Power Board voltage measuring method TUNER input signal strength checking method LCD-TV Version checking method LCD TV connection diagram Check Link Cable (LVDS) reconnection condition Adjustment Test pattern - ADJ Key LCD TV connection diagram Check Link Cable (LVDS) reconnection condition Adjustment Test pattern - ADJ Key Exchange T-Con Board (1) Exchange T-Con Board (2) Exchange LED driver Board (PSU) Exchange Module itself (1) Exchange Module itself (2) Page A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A8 A8 A9 A10 A-1/5 A-2/5 A-3/5 A-4/5 A-5/5 Remarks Contents of LCD TV Standard Repair Process Detail Technical Manual * First of all, Check whether there is SVC Bulletin in GCSC System for these model. No. Error symptom 21 22 B. Power error_No power 23 24 26 B. Power error_Off when on, off while viewing 28 C. Audio error_No audio/Normal video 29 D. Function error_ No response in remote controller, key error Content Check front display LED Check power input Voltage & ST-BY 3.5V Checking method when power is ON POWER BOARD voltage measuring method POWER OFF MODE checking method Checking method in menu when there is no audio Remote controller operation checking method Page A11 A12 A13 A4 A14 A15 A17 Remarks Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content A. Video Error, No Video/Normal Audio Check Back Light On with Naked eye Established date 2015.04.17 A1 Revised date Power On -> disjoint back case -> check lighting Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content A. Video Error, No Video/Normal Audio Power Board to LED back light Voltage Established date 2015.04.17 A2 Revised date Measure DC Voltage applying to LED backlight from Main B/D Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content A. Video Error, No Video/Normal Audio Check White Balance value Established date 2015.04.17 A3 Revised date 1. Press the ADJ button on the remote controller for adjustment 2. Enter into W/B ADJUST of item 6 3. After recording the R, G, B (GAIN, Cut) value of Color Temp (Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content A. Video Error, No Video/Normal Audio Power Board Voltage Measuring Method HD Model : 27 ~ 30 pin FHD Model : 48 ~ 51 pin Established date 2015.04.17 A4 Revised date Check LVDS 12V Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content A. Video Error, Video lag/stop Tuner Input Signal Strength Checking Method Established date 2015.04.17 A5 Revised date When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.). [Non-OS model don't have UI Check function of signal sensitivity.] Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content A. Video Error, No Video/Normal Audio LCD-TV Version Checking Method Established date 2015.04.17 A6 Revised date Checking SW version method for remote controller for adjustment Press the IN-START with the remote controller for adjustment Standard Repair Process Detail Technical Manual LCD TV Error Symptom Content A. Video Error, Vertical/Horizontal bar, Residual Image, Light spot LCD TV connection diagram Established date 2015.04.17 A7 Revised date As the part connecting to the external input, check the screen condition by signal * Jack spec. : depending on Model Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content A. Video Error, Color Error Check and replace Link Cable(LVDS) and contact condition Established date 2015.04.17 A8/ Revised date A9 1. If symptom always occur, pull & reconnect LVDS cable.(Check the status of connection) 2. In other case, replace LVDS Cable 3. Check LVDS connection condition Appendix : Exchange T-Con Board (1) Solder defect, CNT Broken Solder defect, CNT Broken Solder defect, CNT Broken Solder defect, CNT Broken TTT--SC-CCooolondnneDDrDeedeffefeefccecttc,t,,tCC,CNCNNTNTTTBBBrBroroorkkokeekennenn Abnormal Power Section Solder defect, Short/Crack Abnormal Power Section Solder defect, Short/Crack Appendix : Exchange T-Con Board (2) Abnormal Power Section Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack Fuse Open, Abnormal power section Abnormal Display GRADATION Noise GRADATION Appendix : Exchange the Module (1) Panel Mura, Light leakage Panel Mura, Light leakage Press damage Crosstalk Press damage Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Appendix : Exchange the Module (2) Vertical Block Source TAB IC Defect Vertical Line Source TAB IC Defect Vertical Block Source TAB IC Defect Horizontal Block Gate TAB IC Defect GHGaoatretiezToTAnABtBaIlCIBClDoDceekfefecctt HGoaritzeoTnAtaBl BIClocDkefect Gate TAB IC Defect GHGoaarttieezoTTnAAtBBalIIlCCineDDeeffeecctt Un-repairable Cases In this case please exchange the module. Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content B. Power Error, No Power Check front Display LED Established date 2015.04.17 A10 Revised date ST-BY condition: Red Front LED control : Menu Option Standby Light On/Off Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content B. Power Error, No Power Checking Method When Power is ON Established date 2015.04.17 Revised date A11/ A12 Check Voltage 19V of Adaptor Power Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content B. Power Error, Off when on, off whiling viewing Power off Mode checking method Established date 2015.04.17 A13 Revised date 1. Press the IN-START button of the remote controller for adjustment and Enter the menu of ENGINEER OPTION Power off history 2. Check the entry into adjustment item 3 Standard Repair Process Detail Technical Manual Error Symptom LCD TV Content C. Audio Error, No Audio/Normal Video Checking method in menu when there is no audio Established date 2015.04.17 A15 Revised date Check Connection from Main B/D to Speaker Standard Repair Process Detail Technical Manual Error Symptom D. Function Error, No Response in remote controller, Key error Established date 2015.04.17 LCD TV A17 Content Remote controller operation checking method Revised date < Sub Ass'y> P4600 1 2 3 4 5 6 KEY2 3.5V_ST GND LED_R/BUZZ IR GND < Main Ass'y> 1, 2. Check IR cable condition between IR & Main board. (cut, split, stabbed) 3. Check the ST-BY 3.5V on the terminal pin 2 4. When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog Tester needle moves slowly, and defective when it does not move at all.Adobe InDesign CS6 (Windows) Adobe PDF Library 10.0.1