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Panasonic TH-L42E6S Service Manual
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Panasonic TH-L42E6S Service Manual

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TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.1.1. Leakage Current Cold Check---------------------- 3
1.) --------------------------------------------------------- 3
2 Warning -------------------------------------------------------------- 4
2.2. About lead free solder (PbF)---------------------------- 5
3 Service Navigation ----------------------------------------------- 6
3.1. Service Hint ------------------------------------------------- 6
4 Specifications ----------------------------------------------------- 7
5 Service Mode ------------------------------------------------------ 9
5.1. How to enter into Service Mode ----------------------- 9
5.1.1. Purpose ------------------------------------------------- 9
5.1.2. Key command ----------------------------------------- 9
5.1.3. How to exit---------------------------------------------- 9
5.1.4. Contents of adjustment mode --------------------- 9
5.2. SRV-TOOL -------------------------------------------------10
5.2.1. How to access ----------------------------------------10
Model No.
Chassis:
Destination:
PAGE
5.2.2. Display of SOS History ---------------------------- 10
5.2.3. POWER ON TIME/COUNT ----------------------- 10
5.2.4. Exit ------------------------------------------------------ 10
5.3. Technical Descriptions ---------------------------------- 10
WMDRM and Widevine ---------------------------- 10
5.3.2. General information: -------------------------------- 10
5.3.3. Replacement of ICs: -------------------------------- 10
5.3.4. DRV Check - USBHDD Check------------------- 11
5.3.5. Hotel Mode-------------------------------------------- 11
6 Troubleshooting Guide --------------------------------------- 12
6.1. Check of the IIC bus lines------------------------------ 12
6.1.1. How to access --------------------------------------- 12
6.1.2. Self-check indication only: ------------------------ 12
shipment setting: ------------------------------------ 12
6.1.4. Exit ------------------------------------------------------ 12
6.1.5. Screen display --------------------------------------- 12
6.1.6. Check Point ------------------------------------------- 12
6.2. Power LED Blinking timing chart --------------------- 13
ORDER NO. MTV1301019CE
TH-L42E6S
LA41
SINGAPORE
© Panasonic Corporation 2013.
LED TV
PAGE

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  • Page 1: Table Of Contents

    6.1.4. Exit ------------------------------------------------------ 12 5.1.4. Contents of adjustment mode --------------------- 9 6.1.5. Screen display --------------------------------------- 12 6.1.6. Check Point ------------------------------------------- 12 5.2. SRV-TOOL -------------------------------------------------10 5.2.1. How to access ----------------------------------------10 6.2. Power LED Blinking timing chart --------------------- 13 © Panasonic Corporation 2013.
  • Page 2 TH-L42E6S 6.3. LCD Panel test mode ----------------------------------- 13 6.4. No Power--------------------------------------------------- 13 7 Disassembly and Assembly Instructions --------------- 14 7.1. Panel Assembly ------------------------------------------ 14 7.2. Rear Panel Assembly ----------------------------------- 16 7.3. LCD Panel Fixing & Handling Method -------------- 17 7.4. A_Print Assembly ---------------------------------------- 18 7.5.

  • Page 3: Safety Precautions

    TH-L42E6S 1 Safety Precautions 1.1. General Guidelines 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

  • Page 4: Warning

    TH-L42E6S 2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to 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.

  • Page 5: About Lead Free Solder (Pbf)

    TH-L42E6S 2.2. About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).

  • Page 6: Service Navigation

    TH-L42E6S 3 Service Navigation 3.1. Service Hint Board Name Main Device Remarks A BOARD TUN, OFDM, ADV, LD4, STBY EEP Repairable P BOARD Power Supply Repairable GK BOARD Function SW for LGD panel Repairable K BOARD LED/RM/CATS Repairable...

  • Page 7: Specifications

    TH-L42E6S 4 Specifications Power Source AC 110 - 240 V, 50 / 60 Hz Power Rating 73 W Standby power 0.2 W consumption Visible screen size (diagonal) 107 W 1,920 (W)  1,080 (H) Display resolution Panel LED backlight Liquid Crystal Display Dimensions (W ...
  • Page 8 TH-L42E6S Aerial input VHF / UHF Operating Conditions Temperature : 0 °C - 40 °C Humidity : 20 % - 80 % RH (non-condensing) Built-in wireless LAN Standard compliance and Frequency range*: IEEE802.11a/n 5.15 GHz - 5.35 GHz, 5.47 GHz - 5.85 GHz IEEE802.11b/g/n...

  • Page 9: Service Mode

    TH-L42E6S 5 Service Mode 5.1. How to enter into Service Mode 5.1.1. Purpose After exchange parts, check and adjust the contents of adjustment mode. While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds.

  • Page 10: Srv-Tool

    TH-L42E6S 5.2. SRV-TOOL 5.2.1. How to access 1. Select [SRV-TOOL] in Service Mode. 2. Press [OK] button on the remote control. 5.2.2. Display of SOS History SOS History (Number of LED blinking ) indication. From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.

  • Page 11: Drv Check - Usbhdd Check

    TH-L42E6S 5.3.4. DRV Check - USBHDD Check 1. Select [DRV Check - USBHDD Check] in Service Mode. 2. Press [OK] button on the remote control for more than 3 seconds. 5.3.5. Hotel Mode 1. Purpose Restrict a function for hotels.

  • Page 12: Troubleshooting Guide

    TH-L42E6S 6 Troubleshooting Guide Use the self-check function to test the unit. 1. Checking the IIC bus lines 2. Power LED Blinking timing 6.1. Check of the IIC bus lines 6.1.1. How to access 6.1.2. Self-check indication only: Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control for more than 3 seconds.

  • Page 13: Power Led Blinking Timing Chart

    TH-L42E6S 6.2. Power LED Blinking timing chart 1. Subject Information of LED Flashing timing chart. 2. Contents When an abnormality occurs, the protection circuit will operate and reset the unit to stand by mode. During this time, the defective block can be identified by the number of blinking times of the Power LED on the front panel of the unit as follow:...

  • Page 14: Disassembly And Assembly Instructions

    TH-L42E6S 7 Disassembly and Assembly Instructions 7.1. Panel Assembly 1. Install KEY BUTTON. 2. Install Rear Panel Metal follow Step 1 2  3  4. 3. Install METAL_BRACKET_BOTTOM after all rear panel fixing.
  • Page 15 TH-L42E6S Item Description TKZ5ZC50081 METAL BRACKET BOTTOM TMME268 CLAMPER (LCD2) L5EDDYY00481 LCD PANEL TKZ5ZA50321 REAR PANEL METAL TOP TKZ5ZA50331 REAR PANEL METAL L TKZ5ZA50341 REAR PANEL METAL R TKZ5ZA50211 REAR PANEL METAL BOT L TKZ5ZA50221 REAR PANEL METAL BOT R...

  • Page 16: Rear Panel Assembly

    TH-L42E6S 7.2. Rear Panel Assembly 1. Fix rear panel “L” [Rear & Bottom] and “R” [Rear] ass’y at LCD Panel. 2. After fix rear panel Top & Bottom assembly at LCD Panel. Item Description Ref. Type TXFKP5Z0102 REAR PANEL TOP ASSY Fig.

  • Page 17: Lcd Panel Fixing & Handling Method

    TH-L42E6S 7.3. LCD Panel Fixing & Handling Method 1. Place down the cabinet as shown below. 2. Fix LCD panel into the cabinet by taking below precautions. Other general precautions 1. Do not press panel surface to avoid blue spot on the panel display.

  • Page 18: A_Print Assembly

    TH-L42E6S 7.4. A_Print Assembly 1. Install A_Print. 2. Install SIDE_AV_BRACKET. 3. Install BARRIER P-PCB. (Follow step 1 & 2). Item Description TMX5ZE0041 CH_MOUNT_BOSS TES5ZA001 GROUND SPRING TKP5ZA29402 SIDE AV BRACKET TMK4GX156 BARRIER P-PCB TMK4GG088 SPONGE(30*30*t40)

  • Page 19: P_Print Assembly

    TH-L42E6S 7.5. P_Print Assembly 1. Install P_Print. 2. Install SPEAKER UNIT. 3. Install K-PRINT and LED PANEL. 4. Install USB CABLE. Item Description K1HY05YY0051 WIFI USB CABLE L0EYAA000023 SPEAKER UNIT R L0EYAA000022 SPEAKER UNIT L TXJA10SHUA A10-K10 TKK5ZC50381 LED_PANEL TKP5ZA33301...

  • Page 20: Screw Assembly

    TH-L42E6S 7.6. Screw Assembly Screwing. Item Description Remarks THEJ036J SCREW(RPM9/RP2/A3/P4/WIFI1/KEY1) 6 ± 1 Kgfcm THE4GJ001J SCREW(BTM4) 6 ± 1 Kgfcm THEC1509 SCREW(RP3) 6 ± 1 Kgfcm...

  • Page 21: Emi

    TH-L42E6S 7.7. 1. Reform LVDS cable. 2. Install PET TAPE. 3. Install AL+PET TAPE. Item Description Remarks 70mm  3pcs T4FP1505J PET TAPE 0.21 TEWF279 AL-TAPE(W10*L80) TSCKF0170005 LVDS FFC (51PIN)

  • Page 22: Stand Mounting Assembly

    TH-L42E6S 7.8. Stand Mounting Assembly Assemble the Stand Mtg Ass’y according to spec. Item Description TQF4GA263 QR_CODE_LABEL TPE4GH090 TBL5ZA34571 STAND_METAL XYN4+F25FJK SCREW XSS5+16FJK SCREW...

  • Page 23: Back Cover Assembly

    TH-L42E6S 7.9. Back Cover Assembly 1 1. Install Back cover. 2. Sticking BARRIER_P_PCB_BC. 3. Install M6 SPACER. Item Description TKU5ZX08501 BACK COVER TMK4GX155 BARRIER BACK COVER TKK5ZL50161 M6_SPACER-S...

  • Page 24: Back Cover Assembly

    TH-L42E6S 7.10. Back Cover Assembly 2 Fixing Screw for Back cover. Item Description Remarks N5HBZ0000101 WIFI MODULE THEC1509 SCREW(BC22/WIFI1/HDMI3) Refer to spec. XTV3+8GFJK SCREW(BC3/AV1) Refer to spec. THTD030J SCREW(BC3) 10 ± 2 Kgfcm...

  • Page 25: Handling Spec

    TH-L42E6S 7.11. Handling SPEC ■ Moving the LCD module The module should be handle by two people and hold on that top and bottom long side by both hands without module warping. Never handle the module with keeping horizontal position when moving the module in order to avoid internal damage and deformation.

  • Page 26: Measurements And Adjustments

    TH-L42E6S 8 Measurements and Adjustments 8.1. Voltage chart of A-board Set A-Board to a dummy set and check the satisfaction with the specified voltage as following table. Power Supply Name Measurement Point Specification PANEL12V TP4000 / 4001 11.50V - 12.50V...

  • Page 27: Block Diagram

    TH-L42E6S 9 Block Diagram 9.1. Main Block Diagram MAIN IFD_OUT RF IN BOARD TUNER Parallel_TS DTMB TS I/F DDR_I/F DDR3 Paragon USB5V Y/PB/PR COMPONENT IN CVBS IN SUB3.3V SUB1.2V L/R IN OVP DET NAND SUB1.5 NAND_I/F FLASH SUB5V ANALOG-ASIC DIGITAL...

  • Page 28: Detailed Block Diagram (1/2)

    TH-L42E6S 9.2. Detailed Block Diagram (1/2) SPEAKER_R SPEAKER_L JK8601 JK8602 D3201 JK4702 JK6750 JK8650A JK4701 JK4703 FACTORY DIGITAL USB1 USB2 WiFi MAIN MAIN AUDIO OUT HDMI2 RF IN ETHERNET HDMI1 HDMI3 CN0100 IIC_0 IIC_2 IIC_2 UART X6750 24MHz IC6705 ON BOARD TUNER...

  • Page 29: Detailed Block Diagram (2/2)

    TH-L42E6S 9.3. Detailed Block Diagram (2/2) JK3101A MAIN POWER IC7301, IC7503 STB5V IC7201, Q7301, 5.8VS T7201, Q7302 T7301 PA7406 D7106 Q7201 RECTIFIER +16V CONVERTER Q7403 D7408,9 PA7402 +16V P15V CF7101 DCDCIN CF7102 +16V Q7402 DETECT D7401,2 IC7401 PC7301 PHOTO ERROR...

  • Page 30: Wiring Connection Diagram

    TH-L42E6S 10 Wiring Connection Diagram 10.1. Wire Dressing 1. Install wire. 2. Install PET TAPE. 3. Install AL+PET TAPE. Item Description Remarks TXJA02SHUA A02-P2 70mm  4pcs T4FP1505J PET TAPE 0.28 TXJA12SHUA A12-SP WF...

  • Page 31: Schematic Diagram

    TH-L42E6S 11 Schematic Diagram Model No. : TH-L42E6S A-Board (1/13)
  • Page 32 Model No. : TH-L42E6S A-Board (2/13)
  • Page 33 Model No. : TH-L42E6S A-Board (3/13)
  • Page 34 Model No. : TH-L42E6S A-Board (4/13)
  • Page 35 Model No. : TH-L42E6S A-Board (5/13)
  • Page 36 Model No. : TH-L42E6S A-Board (6/13)
  • Page 37 Model No. : TH-L42E6S A-Board (7/13)
  • Page 38 Model No. : TH-L42E6S A-Board (8/13)
  • Page 39 Model No. : TH-L42E6S A-Board (9/13)
  • Page 40 Model No. : TH-L42E6S A-Board (10/13)
  • Page 41 Model No. : TH-L42E6S A-Board (11/13)
  • Page 42 Model No. : TH-L42E6S A-Board (12/13)
  • Page 43 Model No. : TH-L42E6S A-Board (13/13)
  • Page 44 Model No. : TH-L42E6S GK-Board...
  • Page 45 Model No. : TH-L42E6S K-Board...
  • Page 46 Model No. : TH-L42E6S P-Board (1/2)
  • Page 47 Model No. : TH-L42E6S P-Board (2/2)

  • Page 48: Printed Circuit Board

    TH-L42E6S 12 Printed Circuit Board Model No. : TH-L42E6S A-Board (Top Component Side)
  • Page 49 Model No. : TH-L42E6S A-Board (Bottom Component Side)
  • Page 50 Model No. : TH-L42E6S GK-Board...
  • Page 51 Model No. : TH-L42E6S K-Board...
  • Page 52 Model No. : TH-L42E6S P-Board (Top Component Side)
  • Page 53 Model No. : TH-L42E6S P-Board (Bottom Component Side)

  • Page 54: Exploded View And Replacement Parts List

    TH-L42E6S 13 Exploded View and Replacement Parts List Model No. : TH-L42E6S Parts Location...
  • Page 55 Model No. : TH-L42E6S Packing Exploded View...
  • Page 56 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks CAPACITORS C2000 F1G1A105A047 C 1UF 10V C2009 F1G1H1020008 C 1000PF 50V C2012 F1G1E103A059 C 0.01UF 25V C2014 F1K1V106A010 C 10UF, 25V C2017 F1G1H1020008...
  • Page 57 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C5324 F1K1V106A010 C 10UF, 25V C5328 F1G1H332A830 C 3300PF, 50V C5329 F1G1E333A144 C 0.033UF 25V C5400 F1K1V106A010 C 10UF, 25V C5401 F1K1V106A010 C 10UF, 25V...
  • Page 58 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C6774 F1G1C104A077 C 0.1UF 16V C6775 F1G1C104A077 C 0.1UF 16V C6777 F1G0J105A049 C 1UF , 6.3V C6804 F1G1C104A077 C 0.1UF 16V C6805 F1J1A106A087...
  • Page 59 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C7525 F1J1H223A900 C 0.022UF, 50V C7526 F1K1V106A010 C 10UF, 25V C7527 F1K1V106A010 C 10UF, 25V C7529 F1J1H103A900 C 0.01UF, 50V C8002 F1G1C104A077 C 0.1UF 16V...
  • Page 60 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8216 F1J1A106A087 C 10UF, 10V C8217 F1G1C104A077 C 0.1UF 16V C8218 F1G1C104A077 C 0.1UF 16V C8219 F1G1C104A077 C 0.1UF 16V C8220 F1G1C104A077 C 0.1UF 16V...
  • Page 61 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks D7301 DZ2J039M0L DIODE D7302 B0HAGQ000001 DIODE D7303 DZ2J039M0L DIODE D7304 DA2JF2300L DIODE D7305 B0ADCK000001 DIODE D7306 B0BC027A0336 DIODE D7307 B0BC027A0336 DIODE D7308 B0BC027A0336...
  • Page 62 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks L5701 J0JYC0000464 BEAD CORE L6704 J0JYC0000464 BEAD CORE L6706 J0JYC0000464 BEAD CORE L6761 J0JYC0000464 BEAD CORE L6762 J0JYC0000464 BEAD CORE L6763 G1CR27JA0097 COIL...
  • Page 63 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R0935 D0GA473JA039 M 47KOHM J. 1/10W R2003 D0GAR00J0005 M 0 OHM, 1/16W R2004 D0GA103JA039 M 10KOHM,F,1/16W R2007 D0GA680JA023 M 68 OHM, J,1/16W R2008...
  • Page 64 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4708 D0GA680JA023 M 68 OHM, J,1/16W R4709 D0GA680JA023 M 68 OHM, J,1/16W R4710 D0GA680JA023 M 68 OHM, J,1/16W R4711 D0GA103JA039 M 10KOHM,F,1/16W R4712...
  • Page 65 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R5447 D1BA1502A023 M 15KOHM ,F, 1/10W R5713 D0GA220JA023 M 22OHM J 1/16W R5715 D1BA3242A023 M 32.4KOHM ,F, 1/16W R5716 D1BA1502A023 M 15KOHM ,F, 1/10W...
  • Page 66 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R7209 D0AF2R2JA112 2.2OHM .J. 1/2W R7211 D0GD104JA052 C 100KOHM ,J, 1/16W R7212 D0GB683JA065 C 68KOHM ,J, 1/16W R7219 D0GB513JA065 C 51KOHM ,J, 1/16W...
  • Page 67 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R8005 D0GBR00J0004 M 0 OHM, 1/8W R8101 D1BA4701A023 4.7KOHM ,F, 1/16W R8102 D1BB2002A195 20KOHM ,F, 1/16W R8103 D1BB1802A195 18KOHM ,F, 1/16W R8104 D1BB1801A195 C 1.8KOHM ,F, 1/16W...
  • Page 68 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R8905 D0GA222JA023 C 2.2KOHM ,J, 1/16W R8906 D0GA472JA023 M 4.7KOHM, J,1/16W R8910 D0GA103JA039 M 10KOHM,F,1/16W R8913 D0GA472JA023 M 4.7KOHM, J,1/16W R8914 D0GA472JA023 M 4.7KOHM, J,1/16W...
  • Page 69 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks SW2857 EVQ11G05R SWITCH X6750 H0J240500067 CRYSTAL OSCILLATOR X6800 H0J410500001 CRYSTAL X8300 H0J270500166 CRYSTAL RESONATOR ZA7102 K4AD01A00004 RUG TERMINAL...
  • Page 70 Model No. : TH-L42E6S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks Exploded View K2CQ2YY00107 AC CORD L0EYAA000022 SPEAKER UNIT L L0EYAA000023 SPEAKER UNIT R L5EDDYY00481 LCD PANEL N2QAYB000832 REMOTE TRANSMITTER N5HBZ0000101 WI FI DONGLE...

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