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Panasonic TH-40A400S Service Manual
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Panasonic TH-40A400S 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 ------------------------------------------------------ 8
5.1. How to enter into Service Mode ----------------------- 8
5.1.1. Purpose ------------------------------------------------- 8
5.1.2. Key command ----------------------------------------- 8
5.1.3. How to exit---------------------------------------------- 8
5.1.4. Contents of adjustment mode --------------------- 8
5.1.5. Display of SOS History ------------------------------ 9
5.1.6. Exit-------------------------------------------------------- 9
Model No.
Chassis:
Destination:
PAGE
5.1.7. Hotel Mode----------------------------------------------9
6 Troubleshooting Guide --------------------------------------- 10
6.1. Check of the IIC bus lines------------------------------ 10
6.1.1. How to access --------------------------------------- 10
6.1.2. Self-check indication only ------------------------- 10
shipment setting ------------------------------------- 10
6.1.4. Exit ------------------------------------------------------ 10
6.1.5. Screen display --------------------------------------- 10
6.2. Power LED Blinking timing chart --------------------- 11
6.3. Method of detecting SOS ------------------------------ 11
6.4. LCD Panel test mode ----------------------------------- 12
6.5. No Power--------------------------------------------------- 12
7.1. SP Assembly --------------------------------------------- 13
7.3. LED Panel Assy ------------------------------------------ 15
7.4. Install Metal Parts ---------------------------------------- 16
7.5. Metal Bracket Fixing ------------------------------------ 17
7.6. Chassis Frame-------------------------------------------- 18
ORDER NO. MTV1401302CE
TH-40A400S
KM25
SINGAPORE
© Panasonic Corporation 2014.
LED TV
PAGE

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Summary of Contents for Panasonic TH-40A400S

  • Page 1: Table Of Contents

    7.3. LED Panel Assy ------------------------------------------ 15 5.1.4. Contents of adjustment mode --------------------- 8 7.4. Install Metal Parts ---------------------------------------- 16 7.5. Metal Bracket Fixing ------------------------------------ 17 5.1.5. Display of SOS History ------------------------------ 9 5.1.6. Exit-------------------------------------------------------- 9 7.6. Chassis Frame-------------------------------------------- 18 © Panasonic Corporation 2014.
  • Page 2 TH-40A400S 7.7. A-Print & P-Print Board --------------------------------- 19 7.8. Installation Back Cover Assy -------------------------- 20 7.9. B/Cover ---------------------------------------------------- 21 7.10. B/Cover & Pedestal ------------------------------------- 22 8 Measurements and Adjustments -------------------------- 23 8.1. Voltage chart of A-board-------------------------------- 23 8.2. Voltage chart of P-board-------------------------------- 23 9 Block Diagram --------------------------------------------------- 24 9.1.

  • Page 3: Safety Precautions

    TH-40A400S 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-40A400S 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-40A400S 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-40A400S 3 Service Navigation 3.1. Service Hint Board Name Main Device Remarks A BOARD TUN, EEP, SPI Flash, Realteck Soc Repairable P BOARD Power Supply, LED Driver IC, Keyscan, LED Driver IC Repairable K BOARD Remote, LED, Luminence Sensor Repairable...

  • Page 7: Specifications

    TH-40A400S 4 Specifications Power source AC 220 - 240 V, 50/60 Hz Power consumption (Rated power / Standby power) 68 W / 0.25 W Display panel Panel LCD panel (LED backlight) Visible screen size (diagonal) 100 cm 1,920 (W)  1,080 (H) Display resolution Dimensions (W ...

  • Page 8: Service Mode

    TH-40A400S 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 9: Display Of Sos History

    TH-40A400S 5.1.5. 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. This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory shipment setting].

  • Page 10: Troubleshooting Guide

    TH-40A400S 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 11: Power Led Blinking Timing Chart

    TH-40A400S 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 12: Lcd Panel Test Mode

    TH-40A400S 6.4. LCD Panel test mode Purpose: To find the possible failure point where in LCD Panel or Printed Circuit Board when the abnormal picture is displayed. How to Enter: While pressing [VOLUME ( - )] button of the main unit, press [OPTION] button of the remote control three times within 2 seconds.

  • Page 13: Disassembly And Assembly Instructions

    TH-40A400S 7 Disassembly and Assembly Instructions 7.1. SP Assembly 1. Fixing SP bracket to metal chassis frame. 2. Insert SP unit to SP bracket. 3. Tight screw to SP bracket.

  • Page 14: Lcd Panel Fixing & Handling Method

    TH-40A400S 7.2. 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 15: Led Panel Assy

    TH-40A400S 7.3. LED Panel Assy Install Btm Assy. Description 001 FELT (0.9  25  10) 002 LED_PANEL_CASE 003 LED PANEL 004 FELT (0.55  10  10) 005 SPONGE (T3.0  40  10)

  • Page 16: Install Metal Parts

    TH-40A400S 7.4. Install Metal Parts Please allow the sequence for assembly each part of metal. Description 001 BOTTOM_METAL 002 METAL_CH_FRAME_BTM-A 003 METAL_CH_FRAME_SIDE-A 004 METAL_CH_FRAME_TOP-A 005 METAL_CH_FRAME_BTM-P 006 LCD PANEL...

  • Page 17: Metal Bracket Fixing

    TH-40A400S 7.5. Metal Bracket Fixing 1. Fixing Metal Bracket to panel on L & R side. 2. Stick Felt at Metal Chassis Frame. 3. Stick P-print barier on metal chassis frame. Description 001 KEY_BUTTON_BRACKET 002 A_PCB_BRACKET 003 GROUND_SPRING 004 SIDE_AV_BRACKET...

  • Page 18: Chassis Frame

    TH-40A400S 7.6. Chassis Frame Fix screw follow the sequence procedure & right p/no. Description Remarks 001 SCREW (METAL10) 5-7 Kgfcm 002 SCREW (BTM_METAL2) 5-7 Kgfcm...

  • Page 19: A-Print & P-Print Board

    TH-40A400S 7.7. A-Print & P-Print Board 1. Insert P-Print and A-Print board at panel. 2. Fixing all screw at board and bracket. Description Remarks 001 SCREW (A2/P6/BTM_COVER4) 5-7 Kgfcm 002 CLAMPER 003 SPEAKER_UNIT 004 SPONGE (T8  22  5)

  • Page 20: Installation Back Cover Assy

    TH-40A400S 7.8. Installation Back Cover Assy 1. Attach back cover assy follow picture below. 2. Click slots on back cover into the hooks on cabinet. 3. Make sure follow all caution points.

  • Page 21: B/Cover

    TH-40A400S 7.9. B/Cover 1. Install Vesa Metal. 2. Fixing screw follow torque spec. Description Remarks 001 VESA_METAL_BC 002 BACK_COVER 003 SCREW 5-7 Kgfcm 004 SCREW (BC16) 5-7 Kgfcm...

  • Page 22: B/Cover & Pedestal

    TH-40A400S 7.10. B/Cover & Pedestal DESCRIPTION Remarks 001 STAND MOULD 002 BASE COVER 003 SCREW 4-8Kgfcm 004 RUBBER FOOT 005 BAG FOR PEDESTAL 006 SCREW (BC11) Refer spec table.

  • Page 23: Measurements And Adjustments

    TH-40A400S 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 (V) Remark SUB1.2V TP8004 1.14 - 1.26 SUB3.3V...

  • Page 24: Block Diagram

    TH-40A400S 9 Block Diagram 9.1. Main Block Diagram LED Driver 2-Layer PANEL PNL12V LVDS: CIRCUIT HD 4 pair data + 1 pair CLK Single 8 bit Panel_PWM FHD 4 pair data + 1 pair CLK Dual 8 bit Si2157 IFN / IFP...

  • Page 25: Schematic Diagram

    TH-40A400S 10 Schematic Diagram Model No. : TH-40A400S A-Board (1/13)
  • Page 26 Model No. : TH-40A400S A-Board (2/13)
  • Page 27 Model No. : TH-40A400S A-Board (3/13)
  • Page 28 Model No. : TH-40A400S A-Board (4/13)
  • Page 29 Model No. : TH-40A400S A-Board (5/13)
  • Page 30 Model No. : TH-40A400S A-Board (6/13)
  • Page 31 Model No. : TH-40A400S A-Board (7/13)
  • Page 32 Model No. : TH-40A400S A-Board (8/13)
  • Page 33 Model No. : TH-40A400S A-Board (9/13)
  • Page 34 Model No. : TH-40A400S A-Board (10/13)
  • Page 35 Model No. : TH-40A400S A-Board (11/13)
  • Page 36 Model No. : TH-40A400S A-Board (12/13)
  • Page 37 Model No. : TH-40A400S A-Board (13/13)
  • Page 38 Model No. : TH-40A400S K-Board...
  • Page 39 Model No. : TH-40A400S P-Board...

  • Page 40: Printed Circuit Board

    TH-40A400S 11 Printed Circuit Board Model No. : TH-40A400S A-Board (Top Component Side)
  • Page 41 Model No. : TH-40A400S A-Board (Bottom Component Side)
  • Page 42 Model No. : TH-40A400S K-Board...
  • Page 43 Model No. : TH-40A400S P-Board (Top Component Side)
  • Page 44 Model No. : TH-40A400S P-Board (Bottom Component Side)

  • Page 45: Exploded View And Replacement Parts List

    TH-40A400S 12 Exploded View and Replacement Parts List Model No. : TH-40A400S Parts Location...
  • Page 46 Model No. : TH-40A400S Packing Exploded View 1...
  • Page 47 Model No. : TH-40A400S Packing Exploded View 2...
  • Page 48 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks CAPACITORS C2008 F1G1E103A172 C 0.01UF, 25V C2014 F1H1E104A161 C 0.1UF, 25V C2015 F1K1V106A010 C 10UF, 25V C2016 F1G1C104A146 C 0.1UF 16V C2017 F1G1C103A173 C 0.01UF, 16V...
  • Page 49 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C5615 F1J1A106A043 C 10UF, 10V C5616 F1G1C104A146 C 0.1UF 16V C5624 F1J1A106A043 C 10UF, 10V C5625 F1G1C104A146 C 0.1UF 16V C5717 F1J1A106A043 C 10UF, 10V...
  • Page 50 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C7502 F2A1J1210012 C 120UF, 63V C7503 F1H1H223B047 C 0.022UF, 50V C7504 F1J1E105A287 C 1UF, 25V C7505 F1J1E105A287 C 1UF, 25V C7510 F1A3A221A060 C 220PF 1KV...
  • Page 51 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8151 F1H1H103B047 C 0.01UF, 50V C8152 F1G1A105A047 C 1UF 10V C8153 F1G1A105A047 C 1UF 10V C8162 F1G1C104A146 C 0.1UF 16V C8163 F1G1C103A173 C 0.01UF, 16V...
  • Page 52 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks D7108 B0HAGQ000001 DIODE D7307 DZ2J068M0L DIODE D7313 DB2J41100L DIODE D7317 DA2JF2300L DIODE D7320 B0JAME000126 DIODE D7323 DB2J41100L DIODE D7325 B0ECKT000012 DIODE D7326 B0ECKT000012...
  • Page 53 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks L6778 G1CR22JA0097 COIL L7301 J0JYA0000035 BEAD CORE L7314 J0JYA0000035 BEAD CORE L7316 J0JYC0000344 COIL L7317 J0JYA0000035 BEAD CORE L7501 J0JYA0000035 BEAD CORE L7800...
  • Page 54 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R0939 D0GA680JA023 M 68 OHM, J,1/16W R0944 D1H86804A042 M 68 OHM, J,1/16W R0945 D1H86804A042 M 68 OHM, J,1/16W R1000 D0GA101JA039 M 100OHM, J, 1/16W...
  • Page 55 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4513 D0GA820JA023 M 82 OHM, J,1/16W R4514 D0GA220JA023 M22 OHM, J.1/16 W R4515 D0GA473JA039 M 47KOHM, J,1/16W R4516 D0GA473JA039 M 47KOHM, J,1/16W R4517...
  • Page 56 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R6743 D0GA102JA039 M 1KOHM, J, 1/16W R6744 D0GA102JA039 M 1KOHM, J, 1/16W R6750 D0GA101JA039 M 100OHM, J, 1/16W R6753 D0GA101JA039 M 100OHM, J, 1/16W...
  • Page 57 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R7818 D1BD1503A066 M 150KOHM,F.1/8W R7819 D0GD152JA052 M 1.5KOHM,J,1/8W R7820 D0GD1R0JA052 M 1 OHM,J,1/8W R7823 D0GD473JA052 M 47KOHM,J,1/8W R7824 D0GD183JA052 M 18KOHM,J,1/8W R7825 D1BD1502A066 M 15KOHM,F.1/8W...
  • Page 58 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks OTHERS K1KY14BA0484 CONNECTOR K1KY07BA0483 CONNECTOR K1MY51BA0526 CONNECTOR K1KY04BA0387 CONNECTOR CF7103 D4CAY2R20002 TERMISTOR CN0100 K1KA14A00248 CONNECTOR F7101 K5E502YYA213 FUSE JK3101 K1U511D00002 AV TERMINAL JK4700...
  • Page 59 Model No. : TH-40A400S Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks Exploded View K2CQ2YY00122 AC CORD L0EYAA000052 SPEAKER UNIT L5EDDYY00654 LCD PANEL N2QAYB000818 REMOTE TRANSMITTER TBL5ZX08971 STAND METAL ASSY TBM4GD4631 MODEL NAME PLATE TBX5ZA03303...

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