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Panasonic TX-L24X6B Service Manual
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Panasonic TX-L24X6B Service Manual

La41 chassis
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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.
Warning
IMPORTANT SAFETY NOTICE
ORDER No. PCZ1304087CE
LCD Television
TX-L24X6B
LA41 Chassis
© Panasonic Corporation 2013.
Unauthorized copying and
distribution is a violation of law.
in the

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Summary of Contents for Panasonic TX-L24X6B

  • 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 ........6 SERVICE HINTS ............

  • 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 K-BOARD Board Name Function A-Board AV Terminal, HDMI, USB, Digital Audio Out, Tuner DVB-T/T2/C, CI slot, Ethernet, Headphone, Wireless LAN, Peaks IC, Speaker out, Flash Memory, DDR SDRAM P-Board Main Input, Power Supply, Key control, Power switch K-Board Remote Receiver, Power and Timer LED, C.A.T.S...

  • Page 7: Service Hints

    Service Hints How to remove the backcover Remove the 2 fixing screws, 1 fixing screw and WIFI DONGLE. (see Fig.5) SCREWS (1) XTV3+10JFJK /1pcs/ (2) XYN4+F12FJK /2pcs/ Fig.5 Remove the 8 fixing screws and the backcover. (see Fig.6) SCREWS (1) XTV3+10JFJK /8pcs/ Fig.6 How to remove the pedestal assembly.

  • Page 8: Applicable Input Signals

    Applicable Signals Component (Y, Pb, Pr) (from AV2 terminal), HDMI Signal name COMPONENT HDMI 525 (480) / 60i,60p 625 (576) / 50i, 50p 750 (720) / 60p, 50p 1,125 (1,080) / 60i, 50i 1,125 (1,080) / 60p 1,125 (1,080) / 50p 1,125 (1,080) / 24p PC (from HDMI terminal) Applicable input signal for PC is basically compatible to HDMI standard timing.

  • Page 9: Specifications

    Specifications Power Source: 220-240V AC, 50 / 60Hz Rated Power Consumption: Stand-by Power Consumption: 0.20W Aerial Impedance: 75 unbalanced, Coaxial Type Receiving System: X6B ( UK ) DVB-T/T2 Digital terrestrial services via UHF aerial input ( MPEG2 and MPEG4-AVC(H.264) PAL I UHF E21-E68 PAL 525/60 (AV only)
  • Page 10 LCD screen: L5EDDYY00449 1366 x 768, 16:9 Visible Diagonal 610mm Audio Output: 6W (2 x 3W) Headphones: 3.5mm, 8 Impedance Accessories supplied : Remote Control 2 x R6 (UM3) Batteries Dimensions: Width: Height: Depth: Including TV stand 576mm 416mm 180mm TV set only 576mm 351mm...

  • Page 11: Technical Description

    How to SELF CHECK: While pressing [VOLUME ( - )] button on the main unit, press the MENU button on the remote control for more than 3 seconds. TV will be forced to the factory shipment setting after this SELF CHECK. Model and Keys: Keys Model No. One-to-One Netflix CI PLUS DTCP-IP HDCP (for USB Rec.) Widewine TX-L24X6B None...

  • Page 12: Setting Inspection

    Setting Inspection Voltage Confirmation A board Description Test point Voltage PANEL12V TP4000 / TP4001 11.5V – 12.5V SUB5V TP5420 4.95V - 5.4V SUB3.3V TP5400 3.17V – 3.43V SUB 1.5 V TP8100 1.435V - 1.585V SUB1.2V TP8101 1.14V - 1.26V USB5V TP5440 4.94V –...

  • Page 13: Service Mode Function

    Service Mode Function MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Service Menu How to enter into Service Mode While pressing [VOLUME ( - )] button on the main unit, press the [RED] button on the remote control for 3 times within 2 seconds.

  • Page 14: Service

    SERVICE SERVICE Peaks SOFT 3.694 OPTION 1 04 Key Command ADJUST Peaks EEP 01.05.0077 OPTION 2 ee S e r v i c e 1 WB-ADJ LSI PACKAGE 0.027 OPTION 3 01 OPTION LSI DATA 1.00.10 OPTION 4 10  SRV-TOOL STBY SOFT 1.01.02...

  • Page 15: Service Tool Mode

    Service Tool Mode How to access Select [SRV-TOOL] in Service Mode. Press [OK] button on the remote control. SRV-TOOL Display of TD2Microcode version TD2Microcode:005a0910 Flash ROOM: AD – F1 Display of Flash ROM maker code POWER ON TIME/COUNT Display of SOS History PTCT:00.00.00.00.00 Time 00051:30 On/Off 0000042...

  • Page 16: Hotel Mode

    Hotel Mode 1. Purpose Restrict a function for hotels. 2. Access command to the Hotel mode setup menu. In order to display the Hotel mode setup menu, please enter the following command (within 2 second). [TV] : Vol.[Down] + [REMOTE] : AV (3 times) Then, the Hotel mode setup menu is displayed.

  • Page 17: Data Copy By Usb Memory

    Data Copy by USB Memory Purpose a) Board replacement (Copy the data when exchanging A-board): When exchanging A-board, the data in original A-board can be copied to USB Memory and then copy to new A-board. Following data can be copied. (Before exchanging) User setting data Copy to USB Memory...

  • Page 18: Data Copy From Tv Set To Usb Memory

    Data Copy from TV set to USB Memory Turn on the TV set. Insert USB Memory with a startup file (pwd file) to USB Terminal. On-screen Display will be appeared according to the startup file automatically. Input a following password for (a) or (b) by using remote control. (a) For Board replacement: 2770 (b) For Hotel: 4850 Data will be copied from TV set to USB Memory.

  • Page 19: Data Copy From Usb Memory To Tv Set

    Data Copy from USB Memory to TV set Turn on the TV set. Insert USB Memory with Data to USB Terminal. On-screen Display will be appeared according to the Data folder automatically. Input a following password for (a) or (b) by using remote control. (a) For Board replacement: 2771 (b) For Hotel: 4851 Data will be copied from USB Memory to TV set.

  • Page 20: Option Bytes Description

    Option Bytes Description OPTION1 TEXT Ch Refresh ON (1) / OFF (0) ID-1 ON (1) / OFF (0) Macrovision Auto-judge ON (1) / OFF (0) “BassBoost” sound menu enable ON (1) / OFF (0) “Digital Remaster” sound menu enable ON (1) / OFF (0) Enable HDMI force reset ON (1) / OFF (0) TINT_Component_HDMI...

  • Page 21: Self Check

    While pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds. How to exit Switch off the power with the [POWER] button on the main unit. TX-L24X6B 24HD Self Check Complete H14TUN O.K.

  • Page 22: 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 Blinking timing Contents...

  • Page 23: Adjustment Method

    Adjustment Method White Balance Adjustment Instrument Name Connect to Remarks Remote controller Correlation can be also taken by LCD WB meter (Minolta CA-210 or equivalent) CS-1000A or equivalent Comunication jig Computer for external control Procedure Remarks Let the panel standfor more than 3 hours at more than 20 C.

  • Page 24: Wiring Diagram

    Wiring Diagram LCD PANEL...

  • Page 25: Block Diagram

    Block Diagram (1/2) ETHERNET CI SLOT SERVICE JK8650A JK8400 CN0100 17,18 51,52 A-BOARD [EXCHANGE UNIT] IIC_2 SCL/SDA 21,20 45,46 IF1_N,P SUB3.3V 37,38 IC6800 RESET DVB-T/T2/C DMD_1.1V AGC1_T DEMODULATOR SUB3.3V T2_FEF EU_TU_1.8V TS Parallel 3,4,5,8,9,12 IC8900 SCL/SDA 13,14,15,16,17 SCL/SDA NAND FLASH IF1_N,P IF1 N,P RESET...
  • Page 26 Block Diagram (2/2) TO A02 P-BOARD L7802 TO PANEL K-BOARD D7301 MAIN INPUT TO A10 JK7101...

  • Page 27: Parts Location

    Parts Location...
  • Page 28 Parts Location...

  • Page 29: Location Of Lead Wiring

    Location of Lead Wiring WIFI SP_L SP_R...

  • Page 30: 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 31 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks A-L24X6B CIRCUIT BOARD A 1 (RTL)PAVCCZ TXN/K1XGUB CIRCUIT BOARD K 1 (RTL)PAVCCZ TXN/P1XGUB CIRCUIT BOARD P 1 (RTL)PAVCCZ K1KY14BA0484 14P CONNECTOR 1 PAVCCZ...
  • Page 32 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C3303 F1J1A106A087 C 10UF, , 10V 1 PAVCCZ C3305 F1J1A106A087 C 10UF, , 10V 1 PAVCCZ C3306 F1J1A106A087 C 10UF, , 10V 1 PAVCCZ...
  • Page 33 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C5408 F1G1H222A830 C 2.2NF, , 50V 1 PAVCCZ C5440 F1K1V106A010 C 10UF, , 35V 1 PAVCCZ C5443 F1J1A106A087 C 10UF, , 10V 1 PAVCCZ...
  • Page 34 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C7313 F2A1V470B763 E 47UF, M, 35V 1 PAVCCZ C7314 F1H1H102B052 C 1000PF, -, 50V 1 PAVCCZ C7315 F1AAF471A019 C 470PF, K, 250V 1 PAVCCZ...
  • Page 35 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8110 F1G1C183A146 C 18NF, , 16V 1 PAVCCZ C8111 F1G1C104A077 C 100NF, , 16V 1 PAVCCZ C8112 F1K1V106A010 C 10UF, , 35V 1 PAVCCZ...
  • Page 36 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks D3008 DZ2J140M0L DIODE 1 PAVCCZ D3009 DZ2J140M0L DIODE 1 PAVCCZ D3010 DZ2J140M0L DIODE 1 PAVCCZ D3011 DZ2J140M0L DIODE 1 PAVCCZ D3012 DZ2J140M0L DIODE...
  • Page 37 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks IC8101 C0DBAYY01692 IC DC/DC CONVERTER 1 PAVCCZ IC8200 C3ABUY000028 IC 2GBIT DDR3+SDRAM 1 PAVCCZ IC8201 C3ABUY000028 IC 2GBIT DDR3+SDRAM 1 PAVCCZ IC8400 C0DBZYY00382...
  • Page 38 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks L5701 J0JYC0000464 FILTER 1 PAVCCZ L6704 J0JYC0000464 FILTER 1 PAVCCZ L6706 J0JYC0000464 FILTER 1 PAVCCZ L6800 J0JYC0000464 FILTER 1 PAVCCZ L6801 J0JYC0000464 FILTER...
  • Page 39 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R0911 D0GA272JA023 M 2K7 OHM, J, 1/16W 1 PAVCCZ R0926 D0GA473JA039 M 47K OHM, J, 1/16W 1 PAVCCZ R0927 D0GA473JA039 M 47K OHM, J, 1/16W...
  • Page 40 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R3202 D1BF75R0A073 M 75 OHM, F, 1/4W 1 PAVCCZ R3300 D0GAR00J0005 M 0 OHM, J, 1/16W 1 PAVCCZ R3301 D1BA6802A023 M 68K OHM, F, 1/16W...
  • Page 41 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R5006 D0GA223JA023 M 22K OHM, J, 1/16W 1 PAVCCZ R5007 D0GA223JA023 M 22K OHM, J, 1/16W 1 PAVCCZ R5009 D1BA5602A023 M 56K OHM, F, 1/16W...
  • Page 42 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R6862 D0GA680JA023 M 68 OHM, J, 1/16W 1 PAVCCZ R6863 D0GA680JA023 M 68 OHM, J, 1/16W 1 PAVCCZ R6871 D0GA332JA023 M 3K3 OHM, J, 1/16W...
  • Page 43 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R7819 D0GB104ZA041 M 100K OHM, J, 1/10W 1 PAVCCZ R7820 D0GB102JA065 M 1K OHM, J, 1/10W 1 PAVCCZ R7821 D0GD1R0JA052 M 1 OHM, J, 1/8W...
  • Page 44 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R8450 D1H86804A042 M 68 OHM, J, 1/16W 1 PAVCCZ R8451 D1H86804A042 M 68 OHM, J, 1/16W 1 PAVCCZ R8452 D1H86804A042 M 68 OHM, J, 1/16W...
  • Page 45 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks X8300 H0J270500166 CRYSTAL 1 PAVCCZ ZA7950 K4AD01A00004 TERMINAL 1 PAVCCZ ZA7951 K4AD01A00004 TERMINAL 1 PAVCCZ...
  • Page 46 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks BAT-C-0830 BATTERY COVER OF RC 1 PAVCCZ L5EDDYY00449 LCD PANEL 1 PAVCCZ N5HBZ0000101 WIFI DONGLE 1 PAVCCZ TBL5ZX05932 PEDESTAL ASSY 1 PAVCCZ TBM0EC0821...
  • Page 47 Model No. : TX-L24X6B Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks SK302 THTD032J SCREW 1 PAVCCZ SK303 THTD032J SCREW 1 PAVCCZ SK304 THTD032J SCREW 1 PAVCCZ SK305 THTD032J SCREW 1 PAVCCZ SK306 THTD032J SCREW...

  • Page 48: 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 68: Conductor Views

    Conductor Views A-BOARD - TOP TNPH1041 A C9980 L4901 CN0100 VJ0931 VJ0914 C4933 JS0032 JS0035 JS0044 JS0047 JS0055 JS0058 JS0067 JS0070 JS0033 JS0036 JS0045 JS0048 JS0056 JS0059 JS0068 JS0071 R0929 R0928 C4929 JS0034 JS0037 JS0046 JS0049 JS0057 JS0060 JS0069 JS0072 L4902 C5406 C5426...
  • Page 69 A-BOARD - BOTTOM TNPH1041 B TP0913 R0918 IC8901 R8000 R0920 C8090 R0927 R0926 C0904 C4901 R4905 C4902 C5429 C5409 R4906 TP4900 R5421 R5401 R4912 TP4901 R4914 R4900 R4916 R4904 TP4902 R4907 TP4903 C4911 C8409 R8417 R8426 R4908 C4909 VJ8401 R4901 R8405 L4900 R8418...
  • Page 70 P-BOARD - TOP L 7 8 0 5 L7805 JS7802 J K 7 1 0 1 JK7101 J S 7 8 0 2 C 7 8 0 6 J S 7 9 5 0 L 7 9 5 0 C7806 CAUTION J107 J 1 0 7...
  • Page 71 P-BOARD - BOTTOM...
  • Page 72 K-BOARD - TOP D2802A R2822 R2821 SN2800 D2802 D2807 D2801 D2800 C2801 D2804 D2806 C2802 D2808 C2807 C2804 C2803 C2805 C2806 R2820 S U F F I X . R2803 C2800 R2813 R2810 R2804 R2814 R2811 R2805 K-BOARD - BOTTOM...

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