Panasonic TC-L55E50 Service Manual
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Panasonic TC-L55E50 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. Contents of adjustment mode --------------------- 8
5.1.2. How to exit---------------------------------------------- 8
5.2. SRV-TOOL -------------------------------------------------- 9
5.2.1. How to access ----------------------------------------- 9
5.2.2. Display of SOS History ------------------------------ 9
5.2.3. POWER ON TIME/COUNT ------------------------ 9
Model No.
Chassis:
Destination:
PAGE
5.2.4. Exit --------------------------------------------------------9
5.2.5. Self Check Mode ------------------------------------ 10
5.2.6. Hotel Mode Adjustment ---------------------------- 10
5.2.7. Hotel Mode-------------------------------------------- 10
6 Troubleshooting Guide --------------------------------------- 11
6.1. Check of the IIC bus lines------------------------------ 11
6.1.1. How to access --------------------------------------- 11
6.1.2. Exit ------------------------------------------------------ 11
6.1.3. Screen display --------------------------------------- 11
6.2. Power LED Blinking timing chart --------------------- 12
6.3. No Power--------------------------------------------------- 12
7.1. Control Panel Preparation ----------------------------- 13
7.2. Control Panel Assembly-------------------------------- 14
7.3. Speaker Assembly --------------------------------------- 15
7.4. Panel Assembly ------------------------------------------ 16
7.6. LED Panel Assembly------------------------------------ 18
7.7. Screwing up Brackets----------------------------------- 19
7.8. Plate Metal Part Assembly----------------------------- 20
ORDER NO. MTV1204028CE
LCD HDTV
TC-L55E50
LA35
USA
© Panasonic Corporation 2012. Unauthorized
copying and distribution is a violation of law.
Ver.1
PAGE

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Summary of Contents for Panasonic TC-L55E50

  • Page 1: Table Of Contents

    7.6. LED Panel Assembly------------------------------------ 18 5.2.2. Display of SOS History ------------------------------ 9 7.7. Screwing up Brackets----------------------------------- 19 5.2.3. POWER ON TIME/COUNT ------------------------ 9 7.8. Plate Metal Part Assembly----------------------------- 20 © Panasonic Corporation 2012. Unauthorized copying and distribution is a violation of law. Ver.1...
  • Page 2 TC-L55E50 7.9. LVDS -------------------------------------------------------- 21 7.10. Fitting the Barrier ----------------------------------------- 22 7.11. Plate A Assembly ---------------------------------------- 23 7.12. Plate P Assembly ---------------------------------------- 24 7.13. Assembling the Metal AV Bracket Side------------- 25 7.14. Assembling the Metal AV Bracket BTM ------------ 26 7.15.

  • Page 3: Safety Precautions

    TC-L55E50 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

    TC-L55E50 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)

    TC-L55E50 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

    TC-L55E50 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

    TC-L55E50 4 Specifications Power Source AC 110-127 V, 60 Hz Power Consumption (Rated power / Standby power) 158 W / 0.15 W Display panel Panel System LCD panel (LED backlight) Screen size 55” class (54.6 inches measured diagonally) W × H × Diagonal 47.6”...

  • Page 8: Service Mode

    TC-L55E50 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 9: Srv-Tool

    TC-L55E50 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 10: Self Check Mode

    TC-L55E50 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 11: Troubleshooting Guide

    TC-L55E50 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 12: Power Led Blinking Timing Chart

    TC-L55E50 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 13: Disassembly And Assembly Instructions

    TC-L55E50 7 Disassembly and Assembly Instructions 7.1. Control Panel Preparation 1. Connect the cable to the GK plate connector. 2. Fit the GK plate on the key button guide pins indicated by the pointed arrows. 3. Screw in the positions indicated using the corresponding torque.

  • Page 14: Control Panel Assembly

    TC-L55E50 7.2. Control Panel Assembly 1. Place the control panel preparation on the cabinet guide pins, as indicated by the pointed arrows. 2. Screw in the positions indicated using the corresponding torque.

  • Page 15: Speaker Assembly

    TC-L55E50 7.3. Speaker Assembly 1. Fit the speaker brackets, inserting the bracket pins into the holes in the panel 2. Screw in the positions indicated using the corresponding torque. 3. Insert the speaker in the speaker brackets.

  • Page 16: Panel Assembly

    TC-L55E50 7.4. Panel Assembly 1. Place black tape in the position indicated, see detail 1. 2. Fit the panel to the cabinet, handling it extremely carefully. Fig A 3. Once the panel has been fitted to the cabinet, pull the panel towards the cabinet until it meets the stops.

  • Page 17: Lcd Panel Fixing & Handling Method

    TC-L55E50 7.5. 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 Assembly

    TC-L55E50 7.6. LED Panel Assembly 1. Prepare the LED panel as indicated, Fig A. 2. Place the felt in the position indicated, see Fig A. 3. Assemble the prepared LED as shown in Fig B.

  • Page 19: Screwing Up Brackets

    TC-L55E50 7.7. Screwing up Brackets 1. Place the metal parts in the positions indicated; the dotted lines indicate the panel guides. Fig A 2. Place the bottom metal bracket. Fig B 3. Insert the clampers in the position indicated. Fig C...

  • Page 20: Plate Metal Part Assembly

    TC-L55E50 7.8. Plate Metal Part Assembly 1. Place the metal part on the guide pins. 2. Place the gasket as indicated in Detail1. 3. Screw in the positions indicated using the corresponding torque. 4. Place the gasket in the position indicated; see detail 2.

  • Page 21: Lvds

    TC-L55E50 7.9. LVDS 1. Place the sponges on the back of the LVDS cables as indicated. 2. Connect the flexible cables to the panel connectors. 3. Place the aluminum tape in the position indicated. 4. Place the tape in the position indicated.

  • Page 22: Fitting The Barrier

    TC-L55E50 7.10. Fitting the Barrier 1. Place the barrier in the position indicated. 2. Place the gasket on the top part of the panel. (See detail 1) 3. Place the gasket in the metal Ch frame area. (See detail 2)

  • Page 23: Plate A Assembly

    TC-L55E50 7.11. Plate A Assembly 1. Fit plate A on the metal guides. 2. Place the thermal sheet in the position indicated. Detail 1 3. Screw in the positions indicated using the corresponding torque. 4. Place the gasket in the position indicated.

  • Page 24: Plate P Assembly

    TC-L55E50 7.12. Plate P Assembly 1. Fit plate P on the metal guides. 2. Screw in the positions indicated using the corresponding torque. 3. Place the spacers in the correct positions. (See Fig A) 4. Place the gasket in the position indicated, see detail 2.

  • Page 25: Assembling The Metal Av Bracket Side

    TC-L55E50 7.13. Assembling the Metal AV Bracket Side 1. Assemble the speaker brackets (left and right) on the cabinet. 2. Screw the brackets to the cabinet, making sure you use the torque indicated. 3. Assemble the speakers on the brackets, making sure they are properly inserted. The speaker connectors must go on the side...

  • Page 26: Assembling The Metal Av Bracket Btm

    TC-L55E50 7.14. Assembling the Metal AV Bracket BTM 1. Place the Metal AV Bracket in the position indicated. 2. Screw in the positions indicated using the corresponding torque. 3. Stick the gasket in the position indicated (detail 1). The placement references are the PC connector screw on plate A and the edge of the metal part respectively.

  • Page 27: Bottom Cover Assembly

    TC-L55E50 7.15. Bottom Cover Assembly 1. Insert the bottom cover guides into the lower metal grooves and slide in the direction indicated. 2. Stick the rubber in the position indicated. (Detail 1) 3. Place the gaskets in the positions indicated. (Detail 1)

  • Page 28: Preparing The Cover

    TC-L55E50 7.16. Preparing the Cover 1. Remove the barrier tape protector. 2. Insert the barrier into the grooves on the back cover (indicated by the letter “A”). 3. Stick the sticker area (indicated by the letter “B”). 4. Stick the felts at the bottom of the back cover, see detail B.

  • Page 29: Screwing Up The

    TC-L55E50 7.17. Screwing up the Back Cover 1. Fit the back cover to the television. (23 PCS) 2. Screw in the positions indicated using the corresponding torque. (17 PCS) Insert the M6 CAP. Press until assembled. (4 PCS)

  • Page 30: Measurements And Adjustments

    TC-L55E50 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. VOLTAGE TEST POINT SPECIFICATION PANEL12V TP4004/TP4005 11.45V - 12.55V USB_5V TP5440 4.80V - 5.25V...

  • Page 31: Block Diagram

    TC-L55E50 9 Block Diagram 9.1. Main Block Diagram MAIN NAND NAND FLASH SD CARD DATA SD IF SD CARD SLOT SD3.3V IFD_OUT DDR3 TUNER SIF_OUT SUB5V Peaks SUB1.1V PEAKS_EEPROM SUB1.5V OVP DET SUB3.3V V/Y,PB,PR SUB_AI_3.3V USB5V V/COMP SUB9V P15V STB1.1V R/G/B/H/V STB3.3V...

  • Page 32: Detailed Block Diagram (1/2)

    TC-L55E50 9.2. Detailed Block Diagram (1/2) MAIN POWER IC7301, IC7502 STB6V IC7201, Q7301, 5.8VS T7201, Q7302 T7301 D7407 PA7406 D7102 Q7201,3 RECTIFIER P15V CONVERTER Q7403 D7408,9 PA7402 +16V CF7101,2 +16V Q7402 +16V D7401,02 DETECT IC7401 PC7301 PHOTO ERROR COUPLER DETCT...

  • Page 33: Detailed Block Diagram (2/2)

    TC-L55E50 9.3. Detailed Block Diagram (2/2) CN8660 SPEAKER_R SPEAKER_L SD CARD JK3005B JK3001 D3006 JK8450 JK8451 JK8600A JK4701A JK4700A JK4702A JK4703A FACTORY DIGITAL COMPONENT/VIDEO ANTENNA/ USB1 USB2 ETHERNET AUDIO OUT MAIN CABLE IN HDMI2 HDMI1 HDMI3 HDMI4 CN0100 DMC_IIC0 IIC0...

  • Page 34: Wiring Connection Diagram

    TC-L55E50 10 Wiring Connection Diagram 10.1. Cable Alignment 1. Align the cables, placing the tapes in the positions indicated and connect to the connectors indicated. 2. Place the aluminum tapes in the positions indicated. See details 1 and 2.
  • Page 35 TC-L55E50 Clampers / Tapes Cables P4-LD/GK4 P2 - A02 SP (R) - A12 SP (L) - A12 A10 - K10...

  • Page 36: Schematic Diagram

    TC-L55E50 11 Schematic Diagram 11.1. Schematic Diagram Notes...

  • Page 37: A-Board (1/17) Schematic Diagram

    TC-L55E50 11.2. A-Board (1/17) Schematic Diagram...

  • Page 38: A-Board (2/17) Schematic Diagram

    TC-L55E50 11.3. A-Board (2/17) Schematic Diagram...

  • Page 39: A-Board (3/17) Schematic Diagram

    TC-L55E50 11.4. A-Board (3/17) Schematic Diagram...

  • Page 40: A-Board (4/17) Schematic Diagram

    TC-L55E50 11.5. A-Board (4/17) Schematic Diagram...

  • Page 41: A-Board (5/17) Schematic Diagram

    TC-L55E50 11.6. A-Board (5/17) Schematic Diagram...

  • Page 42: A-Board (6/17) Schematic Diagram

    TC-L55E50 11.7. A-Board (6/17) Schematic Diagram...

  • Page 43: A-Board (7/17) Schematic Diagram

    TC-L55E50 11.8. A-Board (7/17) Schematic Diagram...

  • Page 44: A-Board (8/17) Schematic Diagram

    TC-L55E50 11.9. A-Board (8/17) Schematic Diagram...

  • Page 45: A-Board (9/17) Schematic Diagram

    TC-L55E50 11.10. A-Board (9/17) Schematic Diagram...

  • Page 46: A-Board (10/17) Schematic Diagram

    TC-L55E50 11.11. A-Board (10/17) Schematic Diagram...

  • Page 47: A-Board (11/17) Schematic Diagram

    TC-L55E50 11.12. A-Board (11/17) Schematic Diagram...

  • Page 48: A-Board (12/17) Schematic Diagram

    TC-L55E50 11.13. A-Board (12/17) Schematic Diagram...

  • Page 49: A-Board (13/17) Schematic Diagram

    TC-L55E50 11.14. A-Board (13/17) Schematic Diagram...

  • Page 50: A-Board (14/17) Schematic Diagram

    TC-L55E50 11.15. A-Board (14/17) Schematic Diagram...

  • Page 51: A-Board (15/17) Schematic Diagram

    TC-L55E50 11.16. A-Board (15/17) Schematic Diagram...

  • Page 52: A-Board (16/17) Schematic Diagram

    TC-L55E50 11.17. A-Board (16/17) Schematic Diagram...

  • Page 53: A-Board (17/17) Schematic Diagram

    TC-L55E50 11.18. A-Board (17/17) Schematic Diagram...

  • Page 54: Gk-Board Schematic Diagram

    TC-L55E50 11.19. GK-Board Schematic Diagram...

  • Page 55: K-Board Schematic Diagram

    TC-L55E50 11.20. K-Board Schematic Diagram...

  • Page 56: P-Board Schematic Diagram

    TC-L55E50 11.21. P-Board Schematic Diagram...

  • Page 57: Printed Circuit Board

    TC-L55E50 12 Printed Circuit Board 12.1. A-BOARD A-BOARD (TOP COMPONENT SIDE) TNPH1006 R 2 7 1 2 C N 0 1 0 0 R 0 9 2 2 I C 9 9 8 0 R 0 9 2 3 R 5 8 0 0...
  • Page 58 TC-L55E50 A-BOARD (BOTTOM COMPONENT SIDE) TNPH1006 T P 0 9 1 1 T P 0 9 0 9 T P 0 9 0 7 T P 0 9 0 5 T P 0 9 0 3 T P 0 9 0 1...

  • Page 59: K-Board

    TC-L55E50 12.2. K-BOARD K-BOARD (TOP COMPONENT SIDE) TNPA5604 S U F F I X . C R N O . 2 R 2 8 0 3 R 2 8 0 9 D 2 8 0 3 R 2 8 0 4...

  • Page 60: P-Board

    TC-L55E50 12.3. P-BOARD P-BOARD (TOP COMPONENT SIDE) TNPA5608 Z A 7 1 0 1 Z A 7 1 0 2 T N P A 5 6 0 8 1 3 2 C 7 4 2 3 O R D E R N O .
  • Page 61 TC-L55E50 P-BOARD (BOTTOM COMPONENT SIDE) TNPA5608 Z A 7 1 0 2 Z A 7 1 0 1 C 7 4 2 3 1 3 2 1 0 3 C 7 4 2 2 1 3 1 2 0 7...

  • Page 62: Exploded View And Replacement Parts List

    TC-L55E50 13 Exploded View and Replacement Parts List 13.1. Exploded View and Mechanical Replacement Parts List Please click the radio button for ‘Diagrams ll/Parts List’ on the menu bar. 13.2. Electrical Replacement Parts List 13.2.1. Replacement Parts List Notes...

  • Page 63: Electrical Replacement Parts List

    TC-L55E50 13.2.2. Electrical Replacement Parts List Note: All part will be supplied by PAVCKM. Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C5422 F1G1C104A077 C 0.1UF , 16V C5423 F1J0J2260004 C 22UF , 6.3V...
  • Page 64 TC-L55E50 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C7514 F2A1C2220116 C 2200PF , 16V C8470 F1G1C104A077 C 0.1UF , 16V C7515 F1J1E105A287 C 1UF , 25V C8600 F1L3D1020008 C 1000PF , 2kV...
  • Page 65 TC-L55E50 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C9171 F1J0G2260001 C 22UF , 4V D7216 B0HASR000018 DIODE C9172 F1J0G2260001 C 22UF , 4V D7217 B0JAME000091 DIODE C9173 F1J0G2260001 C 22UF , 4V...
  • Page 66 TC-L55E50 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks L7202 J0JKB0000034 COIL R1951 D0GA680JA023 C 68OHM ,J, 1/16W L7203 J0JKB0000034 COIL R1953 D0GA103JA023 C 10KOHM ,J, 1/16W L7205 J0JKB0000034 COIL...
  • Page 67 TC-L55E50 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R4750 D0GA680JA023 C 68OHM ,J, 1/16W R7202 ERX1SJR22V 0.22OHM ,J, 1W R4751 D0GA680JA023 C 68OHM ,J, 1/16W R7203 D0GD104JA052 C 100KOHM ,J, 1/16W...
  • Page 68 TC-L55E50 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R8219 D1BA2400A023 C 240OHM , 1/16W R8821 D0GA103JA023 C 10KOHM ,J, 1/16W R8220 D1BA2400A023 C 240OHM , 1/16W R8829 D0GA103JA023 C 10KOHM ,J, 1/16W...
  • Page 69 TC-L55E50 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R9307 D1BB2001A197 2KOHM , 1/16W SN2800 B3JB00000116 PHOTO DETECTOR R9309 D1BB2001A197 2KOHM , 1/16W SW2851 EVQ11G05R SWITCH (MX-7;15”& 21”) R9311 D1BB6800A087 680OHM , 1/16W...
  • Page 70 Model No. : TC-L55E50 Parts Location...
  • Page 71 Model No. : TC-L55E50 Packing Exploded View 1...
  • Page 72 Model No. : TC-L55E50 Packing Exploded View 2...
  • Page 73 Model No. : TC-L55E50 Packing Exploded View 3...
  • Page 74 Model No. : TC-L55E50 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks TXFKY01SYUUA CABINET ASSY TXFKK5Z0006 LED BRACKET ASSY TXFKK5Z0004 LED PANEL ASSY TUA5ZA05201 METAL_CH_FRAME_L TSCFF0030015 LVDS FFC (41PIN) TSCFF0030014 LVDS FFC (51PIN) TKZ5ZX50291 BOTTOM_METAL TKZ5ZX5005...

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