Panasonic TX-L24C3B Service Manual
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Service Manual
Specifications
Power Source:
Rated Power Consumption:
Stand-by Power Consumption: 0.3W (Without monitor out recording)
Aerial Impedance:
Receiving System:
Receiving Chanels:
Aerial - Rear:
Operating Conditions:
220-240V AC, 50 Hz
72W
6.7W (With monitor out recording)
75 unbalanced, Coaxial Type
C3B ( UK )
DVB-T/T2 Digital terrestrial services via UHF aerial input (MPEG2 and MPEG4-AVC
PAL-I
PAL-525/60 (AV only)
M.NTSC (AV only)
NTSC (AV only)
C3B ( Ireland )
DVB-T
Digital terrestrial services (MPEG2 and MPEG4-AVC
PAL-I
PAL-525/60 (AV only)
M.NTSC (AV only)
NTSC (AV only)
C3B ( UK )
UHF E21-E68
C3B ( Ireland )
VHF A-J
UHF E21-E69
CATV S1-S20
CATV S21-S41(Hyperband)
C3B ( UK )
UHF
C3B ( Ireland )
VHF/UHF
0°C  35°C
Temperature:
20%  80% RH (non condensing)
Humidity:
ORDER No. ITD1105013CE
LCD Television
TX-L24C3B
GLP26 Chassis
)
(H.264)
© Panasonic Corporation 2011.
Unauthorized copying and
distribution is a violation of law.
REVISION 2
)
(H.264)

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Summary of Contents for Panasonic TX-L24C3B

  • Page 1 CATV S21-S41(Hyperband) Aerial - Rear: C3B ( UK ) C3B ( Ireland ) VHF/UHF 0°C  35°C Temperature: Operating Conditions: 20%  80% RH (non condensing) Humidity: © Panasonic Corporation 2011. Unauthorized copying and distribution is a violation of law.
  • Page 2 Intermediate Frequency: Video/Audio Video 38.9MHz Audio 32.90MHz 32.35MHz(NICAM) Colour 34.47MHz Terminals: AV1 IN Video (21 pin) 1V p-p 75 Audio (21 pin) 500mV rms 10k RGB (21 pin) 0.7V p-p 75 AV1 OUT Video (21 pin) 1V p-p 75 Audio (21 pin) 500mV rms 1k...
  • Page 3: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ........... 4 HOTEL MODE ............17 GENERAL GUIDE LINES........4 DATA COPY BY SD CARD........18 TOUCH – CURRENT CHECK....... 4 DATA COPY FROM TV SET TO SD CARD ..... 19 PREVENTION OF ELECTROSTATIC DISCHARGE DATA COPY FROM SD CARD TO TV SET ..... 20 (ESD) TO ELECTROSTATICALLY SENSITIVE (ES) OPTION BYTES DESCRIPTION ......
  • Page 4: 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 5: 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 6: 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 7: Applicable Signals

    Applicable Signals Component (Y, Pb, Pr), 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 8: Service Hints

    Service Hints How to remove the backcover Lay the main unit face down. (see Fig.5) Fig.5 Remove the 3 fixing screws and the pedestal assembly. (see Fig.6) SCREWS XYN4+F12FJK /3pcs/ Fig.6 Remove the 12 fixing screws and the backcover. (see Fig.7) SCREWS (1) XTB4+12JFJK /10pcs/ (2) XTV3+8JFJK /2pcs/...
  • Page 9: Chassis Board Layout

    Chassis Board Layout P-BOARD A-BOARD K-BOARD KA-BOARD Board Name Function A-Board AV Terminal, HDMI, Digital Audio Out, SD Card, CI slot, Ethernet, TV tuner, DVB-T/T2/C Dem, Peaks_sLD2, AV Switch, Speaker out, EEPROM, Flash Memory, DDR SDRAM KA-Board Remote Receiver, Power and Timer LED K-Board Key Control, Power Switch P-Board...
  • Page 10: Technical Description

    3 seconds. TV will be forced to the factory shipment setting after this SELF CHECK. Model and Keys: Keys Model No. One-to-One CI PLUS DTCP-IP (for USB Rec.) TX-L24C3B None None None...
  • Page 11: Setting Inspection

    Setting Inspection Voltage Confirmation A board Description Test point Voltage PNLVCC TP4062 4.52V - 5.50V STB1.2 V TP5003 1.19V - 1.32V STB3.3V TP5002 3.14V – 3.46V STB5V TP5400 4.01V – 5.50V SUB1.2V TP8100 1.19V – 1.32V SUB1.5V TP8101 1.43V – 1.57V SUB1.8V TP4801 1.82V –...
  • Page 12: Self Check

    Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To enter Self-Check mode, keep pressing the down (-/v) button on the TV set and press the STATUS button on the remote control. To exit Self Check, switch off the TV set at the power button. TX-L24C3B 24HD Panasonic 2011LCD Self Check Complete...
  • Page 13: 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 14: 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 SERVICE While pressing (-/v) button on the TV unit, press on the remote control for 3 times within 2 seconds.
  • Page 15: Service

    Service SERVICE Peaks SOFT 1.009 OPTION 1 Key Command ADJUST Peaks EEP 01.01.0006 OPTION 2 S e r v i c e 1 WB-ADJ LSI PACKAGE 1.624 OPTION 3 OPTION LSI DATA 1.00.03 OPTION 4 10  Press the 3/4 button to change the adjustment values or function. SRV-TOOL STBY SOFT 1.00.00...
  • Page 16: 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 PTCT:00.00.00.00.00 Time 00051:30 On/Off 0000042 Display of SOS History Press [MUTE] button (3sec)
  • Page 17: 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 18: Data Copy By Sd Card

    Data Copy by SD Card 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 SD card and then copy to new A-board. Following data can be copied. (Before exchanging) User setting data Copy to SD card...
  • Page 19: Data Copy From Tv Set To Sd Card

    Data Copy from TV set to SD Card Turn on the TV set. Insert SD card with a startup file (pwd file) to SD slot. 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 SD card.
  • Page 20: Data Copy From Sd Card To Tv Set

    Data Copy from SD Card to TV set Turn on the TV set. Insert SD card with Data to SD slot. 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 SD card to TV set.
  • Page 21: 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) Surround enable low bit ON (1) / OFF (0) Surround enable high bit ON (1) / OFF (0) TINT_Component_HDMI ON (1) / OFF (0) OPTION2...
  • Page 22: Adjustment Method

    Adjustment Method Sub-Contrast/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 23: Wiring Diagram

    Wiring Diagram LCD PANEL...
  • Page 24: Block Diagram (1 Of 2)

    Block Diagram (1/2) SP_R SP_L TUNER CI SLOT SD CARD SLOT TU4801 SERVICE JK1070 JK8850 17,18 CN0100 51,52 A-BOARD 12 11 [EXCHANGE UNIT] IIC_0 32,33,34 25,26,27 28,29,30 21,22,23 IC4900 IC8401 19,20,35,36 [C1AB00003457] IC8402 AUDIO AMP IC8403 CPU BUS IIC3 IC8900 IC8200 IC8201 IC8902...
  • Page 25 Block Diagram (2/2) TO A09 PA7700 R7898 R7896 D7815 Q7812 Q7811 D7816 TO PANEL MAIN IN...
  • Page 26: Parts Location

    Parts Location NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.
  • Page 27 Parts Location NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.
  • Page 28: Replacement Parts List Note

    Replacement Parts List Note All parts except parts mentioned [PAVCCZ] are supplied by AVC-CSPC. NOTE: Parts mentioned [PAVCCZ] are supplied by PAVCCZ.
  • Page 29: Replacement Parts List

    Replacement Parts List Important Safety Notice Components Identified by mark have special characteristics important for safety. * When replacing any of these components, use only manufacturers specified parts. In case of ordering these spare parts, please always add the complete Model-Type number to your order. RTL (Retention Time Limited) Note: The marking (RTL) indicates that the Retention Time is Limited for this item.
  • Page 30 Cct Ref Parts Number Description Cct Ref Parts Number Description D5174 B0BC010A0007 DIODE Q7812 B1ABBE000003 TRANSISTOR D5175 DA2J10100L DIODE Q7817 B1ADCE000027 TRANSISTOR D5180 DZ2J033M0L ZENER DIODE Q7818 B1CERU000011 TRANSISTOR D5301 B0JCMD000066 DIODE Q7819 B1ABBE000003 TRANSISTOR D5302 B0BC6R600005 ZENER DIODE Q7821 B1CHRE000005 TRANSISTOR D5480...
  • Page 31 Cct Ref Parts Number Description Cct Ref Parts Number Description L8100 G1C4R7MA0416 COIL R0967 D0GA680JA023 .063W 68 Ω L8102 G1C3R3MA0425 COIL R1001 D1BB7151A055 0.1W 7K15 Ω L8600 J0JHC0000045 COIL BLM18PG121SN1D R1004 D0GA103JA015 .063W 10K Ω L8601 J0JHC0000045 COIL BLM18PG121SN1D R1005 D0GA102JA023 .063W 1K Ω...
  • Page 32 Cct Ref Parts Number Description Cct Ref Parts Number Description R3204 D1BA2152A014 .063W 21K5 Ω R4985 D0GA103JA015 .063W 10K Ω R3205 D0GAR00J0005 .063W 0 Ω R4986 D0GAR00J0005 .063W 0 Ω R3206 D1BA1302A014 .063W 13K Ω R4988 D0GF102JA048 0.1W 1K Ω R3208 D0GA273JA023 .063W...
  • Page 33 Cct Ref Parts Number Description Cct Ref Parts Number Description R7725 D1BD1802A066 .125W 18K Ω R7886 D0GD473JA052 .125W 47K Ω R7726 D1BD1802A066 .125W 18K Ω R7887 D0GD103JA052 .125W 10K Ω R7727 D1BD1802A066 .125W 18K Ω R7888 D0GD301JA052 .125W 300 Ω R7728 D1BD1802A066 .125W...
  • Page 34 Cct Ref Parts Number Description Cct Ref Parts Number Description R8434 D0GA103JA015 .063W 10K Ω R8824 D0GA103JA015 .063W 10K Ω R8435 D0GA223JA023 .063W 22K Ω R8825 D0GA103JA015 .063W 10K Ω R8436 EXB2HV101J .063W 100 Ω R8860 D0GA103JA015 .063W 10K Ω R8437 EXB2HV473JV CHIP RES...
  • Page 35 Cct Ref Parts Number Description Cct Ref Parts Number Description C3085 F1J1A106A043 S.M.CAP 10µF C4928 F1H1H223A219 S.M.CAP 22nF C3086 F1J1A106A043 S.M.CAP 10µF C4929 F1H1H223A219 S.M.CAP 22nF C3101 F1J1A106A043 S.M.CAP 10µF C4930 F1H1H223A219 S.M.CAP 22nF C3108 F1G1E333A091 S.M.CAP 33nF C4931 F1H1H223A219 S.M.CAP 22nF C3109...
  • Page 36 Cct Ref Parts Number Description Cct Ref Parts Number Description C6751 F1J1A106A087 S.M.CAP 10µF C7853 F1J1E105A231 S.M.CAP 1µF C7700 F1J1H104A717 S.M.CAP 100nF C7855 F1K1E106A136 S.M.CAP 10µF C7701 F1J1H104A717 S.M.CAP 100nF C7856 F1J1H223A623 S.M.CAP 22nF C7702 ECCD3H100JGV S.M.CAP 10µF C7857 F1J1H222A721 S.M.CAP 2.2nF C7703...
  • Page 37 Cct Ref Parts Number Description Cct Ref Parts Number Description TERMINALS AND LINKS C8218 F1G1C104A077 S.M.CAP 100nF C8220 F1G1C104A077 S.M.CAP 100nF K1KA11A00178 11P CONNECTOR C8221 F1G1C104A077 S.M.CAP 100nF A03-KA10 TXJA03QCUE1 A03-KA10-GK01 WIRE C8224 F1G1C104A077 S.M.CAP 100nF K1KA15AA0409 15P CONNECTOR C8225 F1G1C104A077 S.M.CAP 100nF...
  • Page 38: Schematic Diagrams

    Schematic Diagrams 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 59: Conductor Views

    Conductor Views A-BOARD TNP0EA019 - TOP IC’S IC8701 2E IC4900 1B IC8702 2A IC5000 4C IC8900 5D IC5300 1E IC6700 1C TRAN’S IC6750 1C Q0900 IC8000 2C Q4604 IC8200 2D Q4971 IC8201 3D Q4972 IC8404 4D Q4973 IC8601 1C Q8100 IC8700 3E Q8102...
  • Page 60 A-BOARD TNP0EA019 - BOTTOM IC’S TRAN’S IC3001 3B Q2001 IC5416 1E Q2002 IC6701 1C Q3102 IC8100 3D Q3103 IC8401 4D Q4600 IC8402 4D Q4750 IC8403 5D Q4751 IC8706 2C Q4974 IC8901 4B IC8902 3C...
  • Page 61 P-BOARD TNPA5387 - TOP TRAN’S DIODE’S Q7700 D7800 Q7701 D7815 Q7702 D7816 Q7703 D7828 Q7818 D7831 D7833 D7837 D7842...
  • Page 62 P-BOARD TNPA5387 - BOTTOM IC’S D7708 IC7700 D7709 IC7811 D7710 IC7812 D7711 IC7813 D7712 D7713 TRAN’S D7714 Q7811 D7715 Q7812 D7817 Q7817 D7822 Q7819 D7823 Q7821 D7825 D7826 DIODE’S D7827 D7700 D7830 D7701 D7832 D7702 D7834 D7703 D7835 D7704 D7838 D7705 D7844 D7706...
  • Page 63 KA-BOARD TNPA5378 - TOP IC’S RM2800 1A TRAN’S Q2800 Q2801 Q2802...

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