Panasonic TH-42LFE6E Service Manual
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Panasonic TH-42LFE6E Service Manual

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Service Manual
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not
contain warnings or cautions to advise non-technical individuals of potencial dangers in attempting to service a product. Products
powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the
product or products deal within this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked
Schematic Diagrams, Circuit Board Diagrams, Explorer Views and Replacement Parts List. It is essential that these
critical parts should be replaced with manufacturer´s specified parts to prevent shock, fire or other hazards. Do not
modify the original design without permission of manufacturer.
FULL HD LCD Display
Warning
IMPORTANT SAFETY NOTICE
ORDER No. PCZ1308173CE
TH-42LFE6E
LA45 Chassis
in the
© Panasonic Corporation 2013.
Unauthorized copying and
distribution is a violation of law.

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Summary of Contents for Panasonic TH-42LFE6E

  • Page 1 Schematic Diagrams, Circuit Board Diagrams, Explorer Views and Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer´s specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of manufacturer. © Panasonic Corporation 2013. Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ........... 3 GENERAL GUIDE LINES........3 TOUCH – CURRENT CHECK....... 3 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES ..............4 ABOUT LEAD FREE SOLDER (PBF)......5 SUGGESTED PB FREE SOLDER......5 SERVICE NAVIGATION ..........6 CHASSIS BOARD LAYOUT .........

  • Page 3: Safety Precautions

    Safety Precautions General Guide Lines 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. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

  • Page 4: Prevention Of Electrostatic Discharge (Esd) To Electrostatically Sensitive (Es) Devices

    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"...

  • Page 5: About Lead Free Solder (Pbf)

    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). That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.

  • Page 6: Service Navigation

    Service Navigation Chassis Board Layout P-BOARD A-BOARD GK-BOARD K-BOARD Board Name Function A-Board Main Processor, HDMI, DVI, D-SUB(PC), Audio OUT / IN, Ethernet(LAN), RS232(Serial Port), SPI Flash, EEP memory, Speaker OUT DDR memory,SUB CPU GK-Board Key control, Power switch K-Board Remote Reciever, Power and Timer LED, C.A.T.S P-BOARD Power Supply, Main Input...

  • Page 7: Service Hints

    Service Hints How to remove the backcover Lay the main unit face down. (see Fig.5) Remove the 34 fixing screws. (see Fig.6) Fig.5 SCREWS (1) THEC1509 30pcs (2) THTD030J 3pcs (3) XTV3-8GFJK 1pcs Fig.6...

  • Page 8: Applicable Input Signals

    Applicable Input Signals PC signals *Mark: Applicable input signal Horizontal Vertical PC IN DVI-D IN Signal name frequency frequency HDMI (Dot clock (MHz) (Dot clock (MHz) (kHz) (Hz) 640x400@70Hz 31.46 70.07 *(25.17) 640x480@60Hz 31.47 59.94 *(25.18) *(25.18) 640x480@72Hz 37.86 72.81 *(31.5) 640x480@75Hz 37.50...

  • Page 9: Specifications

    Specifications 220-240V AC, 50 / 60Hz Power Source: Rated Power Consumption: Stand-by Power Consumption: 0.5W 0°C  40°C Temperature: Operating Conditions: 20%  80% RH (non condensing) Humidity: Applicable signals: Scanning Format 525(480) / 60i • 60p, 625(575) / 50i • 50p, 750(720) / 60p• 50p 1125(1080) / 60i •...

  • Page 10: Operating Instructions

    Operating Instructions Press to display the Setup menu. Press to select „OSD LANGUAGE“. Press for more than 3 seconds. Press to select „OPTIONS“. Press to display the Options menu. Press to select your preferred menu. Press to adjust the menu. Press to exit from Option menu.

  • Page 11: Option Menu

    Option Menu LA45 chassis series have special function and operation setting facility called Option Menu. This Option Menu is useful for special function required customers. This should be set at the installation stage. Option menu Default setting Contents Input Search Set auto input switching for when there is no signal.

  • Page 12: Service Mode

    Service Mode CAT (Computer Aided Test) Mode CAT mode menu CAT panel sys. 8.2 Mode Function Access Button IIC Mode Service Alignment Action IIC Mode CD (Complete Software version Action CD Mode Diagnostic) information EEPROM edit FT Mode FT Mode Action NW Mode NW Mode...

  • Page 13: Cd Mode, Ft Mode, Nw Mode

    CD Mode Select the CD mode by Up/Down buton on the remote control at the front page of CAT mode and then press the Mute button on the remote control more than 3 seconds. MONITOR-MCU 1.0000LFE6 Factory use MONITOR-EEPROM 01.00 2 8A B5 New data MONITOR-EEPROM Change Addr...

  • Page 14: Sd Mode, Ms Mode, Id Mode

    SD Mode Select the SD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button on the remote control. D4 4B 49 D4 49 4B 4A History of remote control command. Input command D4 4B 49 4B 4A D4 49 check...

  • Page 15: Iic Mode Structure

    IIC Mode Structure (following items value is sample data) G DRIVE B DRIVE R DRIVE Panel W/B Adj. by VOL up/down button by left / right button by up / down button change of value G DRIVE B DRIVE R DRIVE LCD DRIVE Adj.

  • Page 16: Self Check

    Self Check Display Indication 1. Self check is used to automatically check the bus line controlled circuit of the LCD display. 2. To get into the Self check mode, press the volume down button on the customer controls at the right side of the set, at the same time pressing the OFF TIMER button on the remote control, and the screen will show.

  • Page 17: Power Led Blinking Timing Chart

    Power LED blinking timing chart Subject Information of LED Flashing timing chart. Contents When abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by number of blinking of the Power LED on the front panel of the unit. Blinking Name Detect item...

  • Page 18: Lcd Panel Test Mode

    LCD Panel test mode The failure-diagnosis by LCD Panel test mode To find the possible failure point where in LCD Panel or Printed Circuit Board when the abnormal picture is displayed. How to display the test pattern: (A) Main unit + remote control operation 1.

  • Page 19: Adjustment Method

    Adjustment Method RGB white balance adjustment Instrument Name Connect to Remarks  INTERNAL PATTERN – 100% WHITE Picture menu: STANDARD User setting: Normal  Color analyzer Panel surface except PICTURE: max 30 ( Minolta CA-210 or equivalent ) Procedure Remarks Internal signal: STANDARD [Conditions] ...

  • Page 20: Wiring Diagram

    Wiring Diagram LCD PANEL JK7101 P-BOARD JK4004 HDMI1 DVI IN JK4002 JK2701 ETHERNET SERIAL JK3503 PORT A-BOARD GK-BOARD JK4001 AUDIO IN JK3505 AUDIO OUT JK3506 SERVICE SERVICE K-BOARD SPEAKERS...

  • Page 21: Block Diagram (1 Of 2)

    Block Diagram (1/2) SP_R SP_L JK3506 JK3505 AUDIO AUDIO A-BOARD STB5V IC4504 SDA1 ,SCL1 LAN3.3V WP_SUB/MAIN SP CS LAN LAN3.3V IC3504 SP SO LAN CONVERTER IC4505 IC2709 SP SI LAN SO/SI01 STB5V_SW LAN3.3V SERIAL FLASH Logic IC SI/SI0O IC2706 SP SCLK LAN SDA3,SCL3 SI/SI0O 10,11...
  • Page 22 Block Diagram (2/2) TO GK4 TO A2 TO PANEL K-BOARD P-BOARD TO A10 GK-BOARD SW2851 SW2852 SW2857 SW2853 SW2854 Q7201 SW2855 TO P5 D7105 D7104 MAIN INPUT JK7101...

  • Page 23: Parts Location

    Parts Location (UK) (CONTINENTAL)
  • Page 24 Parts Location...

  • Page 25: Location Of Lead Wiring

    Location of Lead Wiring SP_R SP_L...

  • Page 26: Replacement Parts List Note

    Replacement Parts List Note Note: All parts except parts mentioned [PAVCCZ] in the Remarks column are supplied by AVC-CSPC. Parts mentioned [PAVCCZ] are supplied by PAVCCZ. Notice: Be sure to make your orders of replacement parts according to this list. RTL (Retention Time Limited) Note: The marking (RTL) indicates that the Retention Time is Limited for this item.

  • Page 27: Replacement Parts List

    Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks BAT-C-0691 BATTERY COVER OF RC 1 PAVCCZ K2CQ2YY00107 AC CORD 1 PAVCCZ K2CT2YY00089 AC CORD (UK) 1 PAVCCZ L0EYAA000022 SPEAKER 1 PAVCCZ L0EYAA000023...
  • Page 28 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks CK302 TMME399 SPACER(P_PCB) 1 PAVCCZ CP01 TMM4GE010 RIVET 1 PAVCCZ FA01 TMKK439 THERMAL CONDUCTIVE SHEET 1 PAVCCZ FK301 TEWF279 AL TAPE(W10XL80) 1 PAVCCZ...
  • Page 29 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks SK304 THEJ024 SCREW 1 PAVCCZ SK305 THEJ036J SCREW 1 PAVCCZ SK306 THEJ036J SCREW 1 PAVCCZ SK307 THEJ036J SCREW 1 PAVCCZ SK308 THEJ036J SCREW...
  • Page 30 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks A-42LFE6E CIRCUIT BOARD A 1 (RTL)PAVCCZ TXN/K11EHU CIRCUIT BOARD K 1 (RTL)PAVCCZ TXN/P11EHU CIRCUIT BOARD P 1 (RTL)PAVCCZ TXNGK11EHU CIRCUIT BOARD GK 1 (RTL)PAVCCZ...
  • Page 31 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C2801 F1G1C1030008 C 10NF, , 16V 1 PAVCCZ C2804 F1H1C104A178 C 0.1UF, -, 16V 1 PAVCCZ C2807 F1J1A106A043 C 10UF, , 10V 1 PAVCCZ...
  • Page 32 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C4113 F1G1H1020008 C 1NF, , 50V 1 PAVCCZ C4114 F1G1C1030008 C 10NF, , 16V 1 PAVCCZ C4115 F1G1H1020008 C 1NF, , 50V 1 PAVCCZ...
  • Page 33 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C4179 F1G1C104A077 C 100NF, , 16V 1 PAVCCZ C4180 F1G1C104A077 C 100NF, , 16V 1 PAVCCZ C4181 F1G1C104A077 C 100NF, , 16V 1 PAVCCZ...
  • Page 34 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C4286 F1J1E475A257 C 4700NF, , 25V 1 PAVCCZ C4291 F1H1C105A145 C 1000NF, , 16V 1 PAVCCZ C4292 F1H1E104A161 C 0.1UF, , 25V 1 PAVCCZ...
  • Page 35 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C4931 F1J0J2260004 C 22UF, , 6.3V 1 PAVCCZ C4932 F1J0J2260004 C 22UF, , 6.3V 1 PAVCCZ C4942 F1J1A106A043 C 10UF, , 10V 1 PAVCCZ...
  • Page 36 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C5209 F1G1E333A059 C 33NF, , 25V 1 PAVCCZ C5210 F1G1H222A830 C 2.2NF, , 50V 1 PAVCCZ C5213 F1G1H1020008 C 1NF, , 50V 1 PAVCCZ...
  • Page 37 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks D3120 B0ACCJ000048 DIODE 1 PAVCCZ D3501 DZ2J160M0L ZENER DIODE 1 PAVCCZ D3503 DZ2J160M0L ZENER DIODE 1 PAVCCZ D3505 DZ2J160M0L ZENER DIODE 1 PAVCCZ...
  • Page 38 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks FL3501 J0HABC000008 FILTER 1 PAVCCZ FL3503 J0HABC000008 FILTER 1 PAVCCZ FL4057 J0ZZB0000147 FILTER 1 PAVCCZ FL4059 J0ZZB0000147 FILTER 1 PAVCCZ K1KY03BA0402 3P CONNECTOR...
  • Page 39 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks JK4002 K1FY124B0009 DVI CONNECTOR 1 PAVCCZ JK4004 K1FY119E0058 CONNECTOR 1 PAVCCZ JK7101 K2AAYB000010 AC INLET 1 PAVCCZ JS0001 D0GAR00J0005 M 0 OHM, J, 1/16W...
  • Page 40 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks L4082 J0JHC0000117 FILTER 1 PAVCCZ L4084 J0JHC0000117 FILTER 1 PAVCCZ L4085 J0JHC0000117 FILTER 1 PAVCCZ L4086 J0JHC0000117 FILTER 1 PAVCCZ L4087 J0JHC0000117 FILTER...
  • Page 41 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks Q2713 B1CFGF000019 TRANSISTOR 1 PAVCCZ Q2714 B1ABCE000015 TRANSISTOR 1 PAVCCZ Q2715 B1ABCE000015 TRANSISTOR 1 PAVCCZ Q2716 B1ABCE000015 TRANSISTOR 1 PAVCCZ Q2717 B1ABCE000015 TRANSISTOR...
  • Page 42 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks Q7202 B1ADCE000022 TRANSISTOR 1 PAVCCZ Q7301 B1CFRR000016 TRANSISTOR 1 PAVCCZ Q7302 B1CFRR000016 TRANSISTOR 1 PAVCCZ Q7303 B1ADCE000022 TRANSISTOR 1 PAVCCZ Q7401 B1ABCF000231 TRANSISTOR...
  • Page 43 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R2716 D0GAR00J0005 M 0 OHM, J, 1/16W 1 PAVCCZ R2717 D0GAR00J0005 M 0 OHM, J, 1/16W 1 PAVCCZ R2720 D0GA220JA023 M 22 OHM, J, 1/16W...
  • Page 44 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R2825 D0GA220JA023 M 22 OHM, J, 1/16W 1 PAVCCZ R2826 D0GAR00J0005 M 0 OHM, J, 1/16W 1 PAVCCZ R2829 D0GAR00J0005 M 0 OHM, J, 1/16W...
  • Page 45 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R3568 D0GB101JA065 M 100 OHM, J, 1/10W 1 PAVCCZ R3569 D0GB101JA065 M 100 OHM, J, 1/10W 1 PAVCCZ R4001 D0GDR00J0004 M 0 OHM, J, 1/8W...
  • Page 46 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4211 D0GB333JA065 M 33K OHM, J, 1/10W 1 PAVCCZ R4213 D0GB473JA065 M 47K OHM, J, 1/10W 1 PAVCCZ R4214 D0GB102JA065 M 1K OHM, J, 1/10W...
  • Page 47 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4326 D0GBR00J0004 M 0 OHM, J, 1/10W 1 PAVCCZ R4327 D0GA103JA039 M 10K OHM, J, 1/16W 1 PAVCCZ R4328 D0GBR00J0004 M 0 OHM, J, 1/10W...
  • Page 48 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4410 D0GB103JA065 M 10K OHM, J, 1/10W 1 PAVCCZ R4411 D0GB562JA065 M 5K6 OHM, J, 1/10W 1 PAVCCZ R4412 D0GB473JA065 M 47K OHM, J, 1/10W...
  • Page 49 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4594 D0GA103JA039 M 10K OHM, J, 1/16W 1 PAVCCZ R4595 D0GB103JA065 M 10K OHM, J, 1/10W 1 PAVCCZ R4596 D0GB223JA065 M 22K OHM, J, 1/10W...
  • Page 50 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4773 D0GA103JA039 M 10K OHM, J, 1/16W 1 PAVCCZ R4774 D0GAR00J0005 M 0 OHM, J, 1/16W 1 PAVCCZ R4775 D0GAR00J0005 M 0 OHM, J, 1/16W...
  • Page 51 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4882 D0GA103JA039 M 10K OHM, J, 1/16W 1 PAVCCZ R4883 D0GA103JA039 M 10K OHM, J, 1/16W 1 PAVCCZ R4884 D0GA222JA023 M 2K2 OHM, J, 1/16W...
  • Page 52 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R7101 D0GF105JA048 M 1M OHM, J, 1/4W 1 PAVCCZ R7102 D0GF105JA048 M 1M OHM, J, 1/4W 1 PAVCCZ R7103 D0GF105JA048 M 1M OHM, J, 1/4W...
  • Page 53 Model No. : TH-42LFE6E Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R7415 D0GD472JA052 M 4K7 OHM, J, 1/8W 1 PAVCCZ R7416 D0GD103JA052 M 10K OHM, J, 1/8W 1 PAVCCZ R7417 D0GD103JA052 M 10K OHM, J, 1/8W...

  • Page 54: Schematic Diagrams Note

    Schematic Diagrams Note IMPORTANT SAFETY NOTICE Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacturers' specified parts. NOTE RESISTOR All resistors are carbon ¼W resistor, unless marked otherwise. Unit of resistance is OHM () (k=1,000, M=1,000,000) CAPACITORS All capacitors are ceramic 50V unless marked otherwise.

  • Page 70: Conductor Views

    Conductor Views A-BOARD - TOP C3123 JK4006 J K 4 0 0 6 C 3 1 2 3 Q 3 1 2 0 R3128 Q 2 7 1 2 I C 3 1 2 0 R3130 X3120 IC3120 R3129 R2910 R4634 C2753 Q 3 1 2 1...
  • Page 71 A-BOARD - BOTTOM C 3 1 2 3 C3123 S4011 J K 4 0 0 6 JK4006 C3532 D3511 FL4005 D3512 TP004 C3531 TP006 L3506 C4006 L3505 R3521 R3522 R4005 C3516 R4415 R4414 C4007 R4002 C3512 R4422 R4426 R4009 R4003 TP2714 C4238 C4240...
  • Page 72 ZA7103 ZA7104 TNPA5806 PA7401 R7409 PA7406 O R D E R N O . Q7402 Z A 7 1 0 4 J S 7 4 0 0 Q7407 JS7400 IC7503 C7422 C 7 4 2 2 D7502 J S 7 4 0 7 Q7501 JS7407 J 3 0 4...
  • Page 73 TNPA5806 S E E R E V E R S E F O R O R D E R N O . T P 7 4 1 9 R 7 4 0 9 ZA7104 ZA7103 C 7 4 1 6 C 7 4 2 9 PA7401 Q 7 4 0 2...
  • Page 74 GK-BOARD - TOP GK-BOARD - BOTTOM CL2853 CL2852 CL2851...
  • Page 75 K-BOARD - TOP K 1 0 C2800 C2806 C2803 C2802 R2800 R2807 R2801 R2808 R2822 R2802 R2809 L O W E R T N P A 5 7 8 5 K-BOARD - BOTTOM T N P A 5 7 8 5 S E E R E V E R S E F O R...

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