Panasonic TH-L42E5R Service Manual
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Panasonic TH-L42E5R 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. Contents of adjustment mode --------------------- 9
5.1.2. How to exit---------------------------------------------- 9
5.2. SRV-TOOL -------------------------------------------------10
5.2.1. How to access ----------------------------------------10
5.2.2. Display of SOS History -----------------------------10
5.2.3. POWER ON TIME/COUNT -----------------------10
Model No.
Chassis:
Destination:
PAGE
5.2.4. Exit ------------------------------------------------------ 10
5.2.5. Self Check Mode ------------------------------------ 11
5.2.6. Hotel Mode Adjustment ---------------------------- 11
5.2.7. 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. Exit ------------------------------------------------------ 12
6.1.3. Screen display --------------------------------------- 12
6.2. Power LED Blinking timing chart --------------------- 13
6.3. No Power--------------------------------------------------- 13
7.1. Control Button Fixing------------------------------------ 14
7.2. Speaker Bracket & Metal Bottom -------------------- 15
7.3. LCD Panel Assembly ----------------------------------- 16
7.6. Screw Fixing----------------------------------------------- 19
7.7. Bracket Assembly---------------------------------------- 20
7.8. LVDS FFC ------------------------------------------------- 22
ORDER NO. MTV1207184CE
TH-L42E5R
LA35
IRAN
© Panasonic Corporation 2012. Unauthorized
copying and distribution is a violation of law.
LED TV
PAGE

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Summary of Contents for Panasonic TH-L42E5R

  • Page 1: Table Of Contents

    5.2.1. How to access ----------------------------------------10 7.6. Screw Fixing----------------------------------------------- 19 5.2.2. Display of SOS History -----------------------------10 7.7. Bracket Assembly---------------------------------------- 20 5.2.3. POWER ON TIME/COUNT -----------------------10 7.8. LVDS FFC ------------------------------------------------- 22 © Panasonic Corporation 2012. Unauthorized copying and distribution is a violation of law.
  • Page 2 TH-L42E5R 7.9. Barrier and Metal CH Frame Assembly ------------ 23 7.10. Shading Sheet Sticking --------------------------------- 25 7.11. Shading Plate Sticking ---------------------------------- 26 7.12. Bottom Cover Fixing------------------------------------- 27 7.13. Back Cover Assembly----------------------------------- 28 8 Measurements and Adjustments -------------------------- 29 8.1. Voltage chart of A-board-------------------------------- 29 8.2.

  • Page 3: Safety Precautions

    TH-L42E5R 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-L42E5R 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-L42E5R 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-L42E5R 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-L42E5R 4 Specifications Power Source AC 220-240 V, 50 / 60 Hz Power Consumption Power Rating 84 W Standby Condition 0.15 W Display panel Panel system IPS LED backlight Liquid Crystal Display Visible screen size (diagonal) 107 cm 2,073,600 (1,920 (W)  1,080 (H)) Number of pixels Dimensions (W ...
  • Page 8 TH-L42E5R HDMI 1 / 2 / 3 / 4 input TYPE A Connectors • This TV supports ‘HDAVI Control 5’ function. HIGH-DENSITY D-SUB 15 PIN R, G, B: 0.7 V[p-p] (75 ) HD, VD: TTL LEVEL 2.0-5.0 V [p-p] (high impedance) •...

  • Page 9: Service Mode

    TH-L42E5R 5 Service Mode 5.1. How to enter into Service Mode While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds. Contents of adjustment mode 5.1.1. • Value is shown as a hexadecimal number.

  • Page 10: Srv-Tool

    TH-L42E5R 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: Self Check Mode

    TH-L42E5R 5.2.5. Self Check Mode 1. Press the ‘MENU’ button (on the remote control) and the ‘VOL DOWN’ button on the LCD panel. 2. Press ON/OFF button on the panel to Exit. 5.2.6. Hotel Mode Adjustment 1. Press the ‘VOLUME DOWN’ button on the TV panel and simultaneously press the INPUT button on the remote control 3 times to enter Hotel Mode.

  • Page 12: Troubleshooting Guide

    TH-L42E5R 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 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-L42E5R 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-L42E5R 7 Disassembly and Assembly Instructions 7.1. Control Button Fixing Fixing all screw at panel, bracket and metal part. Part Num Description Remarks 001 TBX5ZA00601 KEY_BUTTON 002 XTW3+8TFJ SCREW (KEY BUTTON 2) 6 ± 1 Kgfcm 003 XTV3+10JFJ SCREW (SP BKT4/KEY2) 6 ±...

  • Page 15: Speaker Bracket & Metal Bottom

    TH-L42E5R 7.2. Speaker Bracket & Metal Bottom 1. Put the speaker bracket by inserting pins into the holes of the panel. 2. Insert the speakers on the speaker brackets. Part Num Description 001 TKX5ZA02501 SP BRACKET 002 L0EYAA000006 SPEAKER UNIT L...

  • Page 16: Lcd Panel Assembly

    TH-L42E5R 7.3. LCD Panel Assembly Part Num Description 001 L5EDDYY00359 LCD PANEL 002 T4FP1505J PET TAPE 0.14 003 TKZ5ZX5006-1 VESA METAL...

  • Page 17: Lcd Panel Fixing & Handling Method

    TH-L42E5R 7.4. 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: Led Panel And Bracket Assembly

    TH-L42E5R 7.5. LED Panel and Bracket Assembly 1. Fixing LED panel to panel lens. 2. Fixing wire KA10 to KA print and fix to LED panel. 3. Fixing LED panel to cabinet and fix with cabinet rib. 4. Fixing LED/LCD panel to cabinet.

  • Page 19: Screw Fixing

    TH-L42E5R 7.6. Screw Fixing Fix all screw & clampers as indicate in below picture. Part Num Description Remarks 001 THEJ036J SCREW (BTM6/VESA2/A10/P5) 60 ± 10 N.cm 002 XTV3+10JFJ SCREW (KEY2/SP BKT4) 60 ± 10 N.cm 003 THEJ024 SCREW (BTM METAL2) 60 ±...

  • Page 20: Bracket Assembly

    TH-L42E5R 7.7. Bracket Assembly...
  • Page 21 TH-L42E5R Part Num Description 001 TKZ5ZF50034 METAL_AV_BRACKET_SIDE 002 TKZ5ZF50072 METAL_AV_BRACKET_BTM 003 TEWB877 GASKET (AT BTM BRCT) 004 TEWB386 GASKET...

  • Page 22: Lvds Ffc

    TH-L42E5R 7.8. LVDS FFC Fixing LVDS wire. Part Num Description 001 TSCFF0030023 LVDS FFC (41PIN) 002 T4FP1505J PET TAPE (0.07X2) 0.14...

  • Page 23: Barrier And Metal Ch Frame Assembly

    TH-L42E5R 7.9. Barrier and Metal CH Frame Assembly...
  • Page 24 TH-L42E5R Part Num Description Remarks 001 TMK4GX098 BARRIER P-PCB 002 TUA5ZA04301 METAL_CH_FRAME_R 003 TUA5ZA03201 METAL_CH_FRAME_L 004 THEJ036J SCREW ( BTM6/VESA2/A10/P5) 6 ± 1 Kgfcm 005 TEWB770 GASKET (AT CHASSIS METAL SCREW)

  • Page 25: Shading Sheet Sticking

    TH-L42E5R 7.10. Shading Sheet Sticking Part Num Description 001 TMK4GX107 SHADING SHEET 42 (W7*L485*T0.085) 2 PC...

  • Page 26: Shading Plate Sticking

    TH-L42E5R 7.11. Shading Plate Sticking Part Num Description 001 TMK4GX109 SHADING PLATE 002 T4FP2005B BLACK TAPE 0.12 PET + AL tape (W20  L30) 003 TEWF107...

  • Page 27: Bottom Cover Fixing

    TH-L42E5R 7.12. Bottom Cover Fixing Fixing SPEAKER, SPENCER & BOTTOM COVER. Part Num Description 001 TMME399 SPACER (P_PCB) 002 TKP5ZA13801 BOTTOM COVER...

  • Page 28: Back Cover Assembly

    TH-L42E5R 7.13. Back Cover Assembly Part Num Description Remarks 001 TKU5ZX04005 BACK COVER 002 TMK4GX099 BARRIER BACK COVER 003 THTD030J SCREW (BC17/BTM_COVER2) 100 ± 20 N.cm 004 THEC1509 SCREW (BC15) 60 ± 10 N.cm 005 TKKL5521 M6_CAP...

  • Page 29: Measurements And Adjustments

    TH-L42E5R 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 SUB1.1V TP8100 1.10V - 1.22V SUB1.5V TP8101 1.435V - 1.585V...

  • Page 30: Block Diagram

    TH-L42E5R 9 Block Diagram 9.1. Main Block Diagram MAIN NAND NAND FLASH FLASH SD CARD DATA SD IF SD CARD IFD_OUT SLOT SUB3.3V TUNER SIF_OUT DDR3 SUB5V Peaks V/Y/PB/PR PEAKS_EEPROM SUB1.1V V/COMP SUB1.5V OVP DET SUB3.3V SUB_AI_3.3V USB5V A-OUT A_OUT...

  • Page 31: Detailed Block Diagram (1/2)

    TH-L42E5R 9.2. Detailed Block Diagram (1/2) JK3008 JK3001 JK3005 JK3051 PC IN HEADPHONES MAIN AUDIO OUT POWER IC7301, IC7502 STB6V IC7201, Q7301, 5.8VS T7202, Q7302 T7301 D7407 PA7406 D7106 Q7201 5.8VS RECTIFIER P15V CONVERTER Q7403 D7408,9 PA7402 +16V CF7101,2 +16V...

  • Page 32: Detailed Block Diagram (2/2)

    TH-L42E5R 9.3. Detailed Block Diagram (2/2) CN8660 SPEAKER_R SPEAKER_L SD CARD D3006 JK8450 JK8451 JK8600 JK4701 JK4700A JK4702 JK4703A FACTORY DIGITAL ANTENNA/ USB1 USB2 ETHERNET AUDIO OUT CABLE IN HDMI2 HDMI1 HDMI3 HDMI4 CN0100 DMC_IIC0 IIC0 IIC1 STM_IIC SBO0/SBI0 IC8600...

  • Page 33: Wiring Connection Diagram

    TH-L42E5R 10 Wiring Connection Diagram 10.1. Wire Dressing Do wire dressing follow below spec: Part Num Description 001 T4FP1505J PET TAPE (0.07X6) 0.42 002 TMME268 CLAMPER (BTM METAL1) Clampers / Tapes Cables P4-LD/GK4 P2 - A02 SP (R) - A12...

  • Page 34: Schematic Diagram

    TH-L42E5R 11 Schematic Diagram Model No. : TH-L42E5R A-Board (1/12)
  • Page 35 Model No. : TH-L42E5R A-Board (2/12)
  • Page 36 Model No. : TH-L42E5R A-Board (3/12)
  • Page 37 Model No. : TH-L42E5R A-Board (4/12)
  • Page 38 Model No. : TH-L42E5R A-Board (5/12)
  • Page 39 Model No. : TH-L42E5R A-Board (6/12)
  • Page 40 Model No. : TH-L42E5R A-Board (7/12)
  • Page 41 Model No. : TH-L42E5R A-Board (8/12)
  • Page 42 Model No. : TH-L42E5R A-Board (9/12)
  • Page 43 Model No. : TH-L42E5R A-Board (10/12)
  • Page 44 Model No. : TH-L42E5R A-Board (11/12)
  • Page 45 Model No. : TH-L42E5R A-Board (12/12)
  • Page 46 Model No. : TH-L42E5R K-Board...
  • Page 47 Model No. : TH-L42E5R GK-Board...
  • Page 48 Model No. : TH-L42E5R P-Board (1/2)
  • Page 49 Model No. : TH-L42E5R P-Board (2/2)

  • Page 50: Printed Circuit Board

    TH-L42E5R 12 Printed Circuit Board Model No. : TH-L42E5R A-Board (Top Component Side)
  • Page 51 Model No. : TH-L42E5R A-Board (Bottom Component Side)
  • Page 52 Model No. : TH-L42E5R K-Board...
  • Page 53 Model No. : TH-L42E5R GK-Board...
  • Page 54 Model No. : TH-L42E5R P-Board (Top Component Side)
  • Page 55 Model No. : TH-L42E5R P-Board (Bottom Component Side)

  • Page 56: Exploded View And Replacement Parts List

    TH-L42E5R 13 Exploded View and Replacement Parts List Model No. : TH-L42E5R Parts Location...
  • Page 57 Model No. : TH-L42E5R Packing Exploded View1...
  • Page 58 Model No. : TH-L42E5R Packing Exploded View2...
  • Page 59 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks CAPACITOR C1958 F1G1E1030005 C 0.01UF 25V C2000 F1G1A105A047 C 1UF 10V C2014 F1K1E106A134 C 10UF, 25V C2023 F1G1C104A077 C 0.1UF 16V C2802 F1G1C1030008 C 0.01UF 16V...
  • Page 60 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C5150 F1G1E1030005 C 0.01UF 25V C5151 F1G1E1030005 C 0.01UF 25V C5171 F1G1C1030008 C 0.01UF 16V C5301 F1K1E106A134 C 10UF, 25V C5303 F1K1E106A134 C 10UF, 25V...
  • Page 61 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C7209 ECWF2W824KAC C 0.82UF, 450V C7213 F2A2W6800011 C 68UF 450V C7214 F1J1H102A909 C 1000pF, 50V C7302 F1J1H473A835 C 0.047UF, 50V C7303 F1J1H104A902 C 0.1UF, 50V...
  • Page 62 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8205 F1G1C104A077 C 0.1UF 16V C8206 F1G1C104A077 C 0.1UF 16V C8207 F1J1A106A087 C 10UF, 10V C8208 F1G1C104A077 C 0.1UF 16V C8210 F1G1C104A077 C 0.1UF 16V...
  • Page 63 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8765 F1J1A475A039 C 4.7UF, 10V C8850 F1G1E1030005 C 0.01UF 25V C8900 F1G1C104A077 C 0.1UF 16V C8901 F1G1C104A077 C 0.1UF 16V C8902 F1G1C104A077 C 0.1UF 16V...
  • Page 64 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks IC5300 C0DBZYY00544 IC5400 C0DBAYY01299 IC5420 C0DBAYY01299 IC5440 C0DBAYY01283 IC7201 C0DBBYY00050 IC7301 C0DBAYY01329 IC7401 C0DBZYY00531 IC7502 C0DBGYY03054 IC8000 MN2WS0250B IC8100 C0DBAYY01283 IC8101 C0DBAYY01285 IC8200 C3ABUY000020...
  • Page 65 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks L8663 D0GAR00J0005 CHIP RESISTOR L8664 D0GAR00J0005 CHIP RESISTOR TRANSISTORS Q2011 B1ABCE000015 TRANSISTOR Q2012 B1ABCE000015 TRANSISTOR Q2013 B1ABCE000015 TRANSISTOR Q3102 B1ABCE000015 TRANSISTOR Q3103 B1ABCE000015...
  • Page 66 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R2016 D0GA122JA023 M 1.2KOHM, J,1/16W R2034 D0GAR00J0005 M 0 OHM, 1/16W R2051 D0GA101JA023 M 100 OHM, J,1/16W R2053 D0GA473JA023 M 47KOHM, J,1/16W R2054 D0GA104JA023 M100KOHM, J.1/16 W...
  • Page 67 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4711 D0GA102JA023 M1KOHM, J.1/16 W R4712 D0GA473JA023 M 47KOHM, J,1/16W R4715 D0GA103JA023 M10KOHM, J.1/16 W R4721 D0GA103JA023 M10KOHM, J.1/16 W R4722 D0GA103JA023 M10KOHM, J.1/16 W...
  • Page 68 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4982 D0GA473JA023 M 47KOHM, J,1/16W R5002 D0GA683JA023 M 68KOHM, J,1/16W R5003 D0GA103JA023 M10KOHM, J.1/16 W R5006 D0GA223JA023 M 22K OHM J 1/16W R5007...
  • Page 69 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R7232 D1BD3603A066 M 360KOHM,F.1/8W R7234 D1BD8203A066 M 820KOHM,F.1/8W R7302 D0GD101JA059 M 100 OHM,J,1/4W R7303 D0GD101JA059 M 100 OHM,J,1/4W R7304 D0AF2R2JA112 C 2.2 OHM, J,1/2W...
  • Page 70 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R8238 D0GA220JA023 M22 OHM, J.1/16 W R8240 D1HY2208A012 NETWORK RESISTER R8241 D1HY2204A012 NETWORK RESISTER R8242 D1HY2204A012 NETWORK RESISTER R8243 D1HY2204A012 NETWORK RESISTER R8300...
  • Page 71 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R8803 D0GA103JA023 M10KOHM, J.1/16 W R8817 D0GA103JA023 M10KOHM, J.1/16 W R8821 D0GA103JA023 M10KOHM, J.1/16 W R8829 D0GA103JA023 M10KOHM, J.1/16 W R8850 D0GA331JA023 M 330 OHM, J,1/16W...
  • Page 72 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks JK4701 K1FY119E0049 CONNECTOR JK4702 K1FY119E0049 CONNECTOR JK4703A K1FY119E0050 AV TERMINAL JK7101 K2AAYB000009 AV TERMINAL JK8450 K1FY104B0081 AV TERMINAL JK8451 K1FY104B0081 AV TERMINAL JK8600 K2LC1YYE0003...
  • Page 73 Model No. : TH-L42E5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks Exploded View K2CQ2YY00109 AC CORD K2KYYYY00204 AV CABLE COMPONENT K2KYYYY00205 AV CBVS CABLE L0EYAA000018 SPEAKER L0EYAA000019 SPEAKER L5EDDYY00359 LCD PANEL N2QAYB000585 REMOTE TRANSFORMER...

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