Panasonic TH-40A400X Service Manual
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Panasonic TH-40A400X Service Manual

Chassis: km24
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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. MTV1401305CE
TH-40A400X
KM24
SINGAPORE
© Panasonic Corporation 2014.
LED TV
PAGE

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Summary of Contents for Panasonic TH-40A400X

  • 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-40A400X 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-40A400X 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-40A400X 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-40A400X 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-40A400X 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, Luminance Sensor Repairable...

  • Page 7: Specifications

    TH-40A400X 4 Specifications Power source AC Auto 110 - 240 V, 50/60 Hz Power consumption (Rated power / Standby power) 73 W / 0.25 W Display panel Panel TFT LCD Module with LED Backlight Visible screen size (diagonal) 100 cm 1,920 (W) ...

  • Page 8: Service Mode

    TH-40A400X 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-40A400X 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-40A400X 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-40A400X 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-40A400X 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-40A400X 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-40A400X 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-40A400X 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-40A400X 7.4. Install Metal Parts Please follow 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-40A400X 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-40A400X 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-40A400X 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-40A400X 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-40A400X 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-40A400X 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-40A400X 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 TNR1.8V TP8705 1.74 - 1.90 VCCK1.1V...

  • Page 24: Block Diagram

    TH-40A400X 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-40A400X 10 Schematic Diagram Model No. : TH-40A400X A-Board (1/12)
  • Page 26 Model No. : TH-40A400X A-Board (2/12)
  • Page 27 Model No. : TH-40A400X A-Board (3/12)
  • Page 28 Model No. : TH-40A400X A-Board (4/12)
  • Page 29 Model No. : TH-40A400X A-Board (5/12)
  • Page 30 Model No. : TH-40A400X A-Board (6/12)
  • Page 31 Model No. : TH-40A400X A-Board (7/12)
  • Page 32 Model No. : TH-40A400X A-Board (8/12)
  • Page 33 Model No. : TH-40A400X A-Board (9/12)
  • Page 34 Model No. : TH-40A400X A-Board (10/12)
  • Page 35 Model No. : TH-40A400X A-Board (11/12)
  • Page 36 Model No. : TH-40A400X A-Board (12/12)
  • Page 37 Model No. : TH-40A400X K-Board...
  • Page 38 Model No. : TH-40A400X P-Board...

  • Page 39: Printed Circuit Board

    TH-40A400X 11 Printed Circuit Board Model No. : TH-40A400X A-Board (Top Component Side)
  • Page 40 Model No. : TH-40A400X A-Board (Bottom Component Side)
  • Page 41 Model No. : TH-40A400X K-Board...
  • Page 42 Model No. : TH-40A400X P-Board (Top Component Side)
  • Page 43 Model No. : TH-40A400X P-Board (Bottom Component Side)

  • Page 44: Exploded View And Replacement Parts List

    TH-40A400X 12 Exploded View and Replacement Parts List Model No. : TH-40A400X Parts Location...
  • Page 45 Model No. : TH-40A400X Packing Exploded View 1...
  • Page 46 Model No. : TH-40A400X Packing Exploded View 2...
  • Page 47 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks CAPACITORS C2001 F1G1E103A172 C 0.01UF, 50V C2008 F1K1V106A010 C 10UF, 25V C2009 F1G1C104A146 C 0.1UF 16V C2010 F1G1C103A173 C 0.01UF, 16V C2011 F1G1H102A946...
  • Page 48 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C4945 F1H1H102B048 C 1000PF, 50V C4946 F1H1E104A161 C 0.1UF, 25V C4947 F1K1V106A010 C 10UF, 25V C4948 F1H1H104B047 C 0.1UF, 50V C4949 F1H1H105B027 C 1UF, 50V...
  • Page 49 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C7314 F1H1H102B052 C 1000PF, 50V C7315 F1AAF471A019 C 470PF, 240V C7317 F1J2E1030004 C 0.1PF, J,250V C7318 F1J2E1030004 C 0.1PF, J,250V C7319 F1A3A221A060 C 220PF 1KV...
  • Page 50 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8100 F1G1H101A948 C 100PF, 50V C8101 F1G1H101A948 C 100PF, 50V C8112 F1G1C104A184 C 0.1UF, 16V C8114 F1G1C104A146 C 0.1UF 16V C8115 F1J0G2260001 C 22 UF 4 V...
  • Page 51 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8786 F1J1A106A043 C 10UF, 10V C8787 F1J1A106A043 C 10UF, 10V C8791 F1G1A105A080 C 1UF, 10V C8792 F1G1A105A080 C 1UF, 10V C8805 F1G1A105A080 C 1UF, 10V...
  • Page 52 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks IC5602 C0DBZYY00723 IC6750 C1AB00004172 IC7301 C0DBBYY00065 IC7501 C0DBZYY00545 IC7503 C0DBAYY01915 IC7800 C1ZBZ0004569 IC8001 C1AB00004206 IC8300 C0DBAYY01644 IC8700 C0DBAYY01300 IC8702 C0DBAYY01644 IC8705 C0DBEYY00102 IC8707...
  • Page 53 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks TRANSISTOR Q2752 B1ABCF000231 TRANSISTOR Q2753 B1ABCF000231 TRANSISTOR Q3104 B1ABCF000231 TRANSISTOR Q3105 B1ABCF000231 TRANSISTOR Q3106 B1ADCE000022 TRANSISTOR Q4811 B1ABCF000231 TRANSISTOR Q4812 B1ABCF000231 TRANSISTOR Q5003...
  • Page 54 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R2047 D0GA473JA039 M 47KOHM, J,1/16W R2053 D0GAR00J0005 M 0 OHM, 1/16W R2751 D0GA183JA023 M 18K OHM J.1/16W R2753 D0GB101JA065 M 100 OHM,J,1/10W R2756...
  • Page 55 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4831 D0GA104JA039 M 100KOHM,J,1/8W R4835 D0GA102JA039 M 1KOHM, J, 1/16W R4846 D0GA104JA039 M 100KOHM,J,1/8W R4848 D1H84734A042 M 47KOHM, J,1/16W R4852 D0GA102JA039 M 1KOHM, J, 1/16W...
  • Page 56 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R7325 D0GD4R7JA059 M 4.7 OHM,J,1/4W R7329 D0GDR00J0004 M 0 OHM, 1/8W R7335 D0B1106JA033 M 10MOHM J 1W R7342 D0GD182JA052 M 1.8KOHM, J, 1/16W...
  • Page 57 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R8099 D0GA102JA039 M 1KOHM, J, 1/16W R8100 D0GA472JA023 M 4.7KOHM, J,1/16W R8102 D0GAR00J0005 M 0 OHM, 1/16W R8103 D0GA103JA039 M 10KOHM,F,1/16W R8104 D0GA220JA023 M22 OHM, J.1/16 W...
  • Page 58 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks TRANSISTORS T7301 G4DYA0000490 TRANSFORMER OTHERS K1KY14BA0484 CONNECTOR K1KY07BA0483 CONNECTOR K1KY04BA0387 CONNECTOR K1MY51BA0526 CONNECTOR CF7103 D4CAY2R20002 TERMISTOR CN0100 K1KA14A00248 CONNECTOR F7101 K5E502YYA213 FUSE JK3000...
  • Page 59 Model No. : TH-40A400X Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks Exploded View K2CQ2YY00122 AC CORD L0EYAA000052 SPEAKER UNIT L5EDDYY00654 LCD PANEL N2QAYB000823 REMOTE TRANSMITTER TBL5ZX08971 STAND METAL ASSY TBM4GD4632 MODEL NAME PLATE TBX5ZA03303...

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