Panasonic TC-L24C3 Service Manual
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Panasonic TC-L24C3 Service Manual

24 inch class 720p lcd hdtv
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Download this manual See also: Owner's Manual
24 inch Class 720p LCD HDTV
TC-L24C3
Model No.
LA14 Chassis
© Panasonic Corporation 2011.
Unauthorized copying and distribution is a violation
of law.
ORDER NO.ITD1105026CE
B01 Canada: B61

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Summary of Contents for Panasonic TC-L24C3

  • Page 1 ORDER NO.ITD1105026CE B01 Canada: B61 24 inch Class 720p LCD HDTV TC-L24C3 Model No. LA14 Chassis © Panasonic Corporation 2011. Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions -----------------------------------------------3 1.1. General Guidelines ----------------------------------------3 2 Warning --------------------------------------------------------------4 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices ----------4 2.2. About lead free solder (PbF) ----------------------------5 3 Service Navigation------------------------------------------------6 3.1. PCB Layout --------------------------------------------------6 3.2.

  • Page 3: Safety Precautions

    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

    2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi- tive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically 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)

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

  • Page 6: Service Navigation

    3 Service Navigation 3.1. PCB Layout Board Name Function A-Board Main KA-Board Remote Receiver, LED, Cat's eye P-Board Power Supply Control button unit Control Panel Non serviceable Control button unit should be exchanged for service. 3.2. Applicable signals * Mark: Applicable input signal for Component (Y, P ), HDMI and PC horizontal frequency (kHz) vertical frequency (Hz)

  • Page 7: Specifications

    4 Specifications Power Source AC 110-127 V, 60 Hz Power Consumption Rated Power Consumption 76 W Standby Condition 0.3 W Display panel Aspect Ratio 16:9 Visible screen size 24 inch class (24.0 inches measured diagonally) (W × H × Diagonal) 21.0 inch ×...

  • Page 8: Service Mode

    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. 5.1.2.
  • Page 9 Contents of adjustment mode 5.1.4. • Value is shown as a hexadecimal number. • Preset value differs depending on models. • After entering the adjustment mode, take note of the value in each item before starting adjustment. Main item Sub item Sample Data Remark ADJUST...

  • Page 10: Srv-Tool

    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. This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory ship- ment setting].

  • Page 11: Hotel Mode

    5.3. Hotel mode 1. Purpose Restrict a function for hotels. Item Function 2. Access command to the Hotel mode setup menu Mode Select hotel mode off/on In order to display the Hotel mode setup menu: Input Select input signal modes. While pressing [VOLUME (-)] button of the main unit, Set the input, when each time power is switched on.

  • Page 12: Data Copy By Sd Card

    5.4. Data Copy by SD Card 5.4.1. 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. (b) Hotel (Copy the data when installing a number of units in hotel or any facility): When installing a number of units in hotel or any facility, the data in master TV can be copied to SD card and then copy to other TVs.
  • Page 13 5.4.3. Data copy from TV set to SD Card 1. Turn on the TV set. 2. Insert SD card with a startup file (pwd file) to SD slot. On-screen Display will be appeared according to the startup file automatically. 3. 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 14 5.4.4. Data copy from SD Card to TV set 1. Turn on the TV set. 2. Insert SD card with Data to SD slot. On-screen Display will be appeared according to the Data folder automatically. 3. 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 15: Troubleshooting Guide

    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 16: Power Led Blinking Timing Chart

    6.2. Power LED Blinking timing chart 1. Subject Information of LED Flashing timing chart. 2. Contents When an 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 the number of blinks of the Power LED on the front panel of the unit. Blinking Times Contents Check point...

  • Page 17: Disassembly And Assembly Instructions

    7 Disassembly and Assembly Instructions 7.1. Pedestal 7.3. AC cord 1. Lay down the unit so that the rear cover faces upward. 1. Remove the bushing of the AC cord from the AC cord 2. Remove the 3 screws. bracket. 3.

  • Page 18: P-Board

    7.4. P-Board 7.6. A-Board 1. Remove the 6 screws. 1. Remove the 4 screws. 2. Disconnect the connectors (P1A, P2, P3, P4, P5). 2. Disconnect the connector (A03, A04, A10, A11, A21). 3. Remove the P-Board. 3. Remove the A-Board. 7.5.

  • Page 19: Control Button Unit

    7.7. Control button unit 7.9. Bracket mask side 1. Disconnect the connector (K1). 1. Remove the Bracket mask side. 2. Remove the 2 screws. 3. Remove the Control button unit. 7.10. Bracket p-pcb side 1. Remove the 2 screws. 2. Remove the Bracket p-pcb side. 7.11.

  • Page 20: Bracket Visa Top

    7.12. Bracket VISA top 7.14. KA-Board 1. Remove the 2 screws. 1. Remove the 1 screw. 2. Remove the Bracket VISA top. 2. Disconnect the connector (KA10). 3. Remove the KA-Board. 7.13. Bracket metal bottom 1. Remove the 5 screws. 2.

  • Page 21: Emi Processing

    7.15. EMI processing...

  • Page 22: Measurements And Adjustments

    8 Measurements and Adjustments 8.1. Voltage chart of P-board VOLTAGE TEST POINT SPECIFICATION (Reception state) DTV16V TP7702/7703 15.6 ± 1.5 V STBY6V TP7721 5.8 ± 0.8 V 8.2. Voltage chart of A-board VOLTAGE TEST POINT SPECIFICATION (Reception state) STB3.3V TP4716 3.3 ±...

  • Page 23: Block Diagram

    9 Block Diagram 9.1. Main Block Diagram MAIN FLASH CPU BUS SD CARD DATA CPU BUS SD CARD DATA SD CARD SLOT SUB3.3V IFD_OUT DDR2 Nile-TCON SIF_OUT TUNER EEPROM VIDEO_OUT STB5V STB1.2V V,Y/PB/PR STB3.3V COMP/VIDEO ANALOG-ASIC AV SW POWER LED REMOTE RECEIVER C.A.T.S.

  • Page 24: Block (1/2) Diagram

    9.2. Block (1/2) Diagram MAIN CONTROL PANEL OPERATION KEYS MENU INPUT/OK KEY1 KEY1 KEY3 KEY3 POWER POWER BUTTON POWER SUPPLY COLD COLD COLD Q4770 RELAY PC7811 D7844 Q7819 SUB_ON SUB_ON Q7817 T7800 F16V D7837 PA7800 +16V +16V D7842 IC7811 Q7821 +16V RECTIFIER Q7305...

  • Page 25: Block (2/2) Diagram

    9.3. Block (2/2) Diagram JK8502 SPEAKER_R SPEAKER_L SD CARD D2142 OPTICAL JK4501 TU8302 JK2101C JK2108A FACTORY DIGITAL OUT HDMI MAIN TUNER COMP/VIDEO IN PC IN 24KEC_IIC0 24KEC_IIC1 24KEC_IIC2 MCU_IIC YAMON_TX/RX 24KEC_IIC1 IC2106 AUDIO AMP Q4515 F16V IC5613 SUB5V 3.3V SUB3.3V SUB3.3V 24KEC_IIC2 IC8503...

  • Page 27: Wiring Connection Diagram

    10 Wiring Connection Diagram 10.1. Caution statement. Caution: Please confirm that all flexible cables are assembled correctly. Also make sure that they are locked in the connectors. Verify by giving the flexible cables a very slight pull. 10.2. Wiring...
  • Page 28 Model No. : TC-L24C3 Schematic Diagram Note...
  • Page 29 Model No. : TC-L24C3 Replacement Parts List Note...
  • Page 30 Model No. : TC-L24C3 P-Board (1/2) and P2-Board...
  • Page 31 Model No. : TC-L24C3 P-Board (2/2)
  • Page 32 Model No. : TC-L24C3 A-Board (1/5)
  • Page 33 Model No. : TC-L24C3 A-Board (2/5)
  • Page 34 Model No. : TC-L24C3 A-Board (3/5)
  • Page 35 Model No. : TC-L24C3 A-Board (4/5)
  • Page 36 Model No. : TC-L24C3 A-Board (5/5) and KA-Board...
  • Page 37 Model No. : TC-L24C3 P-Board (Foil Side) S-10...
  • Page 38 Model No. : TC-L24C3 P-Board (Component Side) S-11...
  • Page 39 Model No. : TC-L24C3 A-Board (Foil Side) S-12...
  • Page 40 Model No. : TC-L24C3 A-Board (Component Side) S-13...
  • Page 41 Model No. : TC-L24C3 KA-Board S-14...
  • Page 42 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks TXNKA1NMUU CIRCUIT BOARD KA 1 RTL TXN/A1NMUU CIRCUIT BOARD A 1 RTL TXN/P1NMUU CIRCUIT BOARD P 1 RTL K1KY15BA0324 15P CONNECTOR K1KA04B00273 4P CONNECTOR...
  • Page 43 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks C2296 F1H1A225A051 C 2.2UF, 10V C2297 F1H1A225A051 C 2.2UF, 10V C2303 F1G1C104A077 C 0.1UF 16V C2304 ECJ1VB0J105K C 1UF, 6.3V C2307 ECJ1VB0J105K C 1UF, 6.3V...
  • Page 44 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks C5700 F1H0J475A041 C 4.7UF, 16V C5701 F1H0J475A041 C 4.7UF, 16V C5702 ECJ1VB1A105K C 1UF, 10V C5703 ECJ1VB1A105K C 1UF, 10V C5704 F1K1E106A136 C 10UF, 25V...
  • Page 45 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks C7732 F1J1H104A717 C 0.1UF, 50V C7741 F1K1E225A085 C 2.2UF, 25V C7742 F1K1E225A085 C 2.2UF, 25V C7743 F1K1E225A085 C 2.2UF, 25V C7744 F1J1H101A709 C 100PF, 50V...
  • Page 46 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks C8014 F1G1C104A077 C 0.1UF 16V C8015 F1G1C151A117 C 150UF 16V C8016 F1G1C104A077 C 0.1UF 16V C8017 F1G1C104A077 C 0.1UF 16V C8018 F1G1C104A077 C 0.1UF 16V...
  • Page 47 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks C8102 F1G1H5R0A564 C 5 PF, 50V C8104 F1G1H1020008 C 1000PF 50V C8105 F1G1H1020008 C 1000PF 50V C8110 F1G1C104A077 C 0.1UF 16V C8111 F1J1A106A087 C 10UF, 10V...
  • Page 48 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks C8358 F1G1E1030005 C 0.01UF 25V C8359 ECJ1VB1E104K C 0.1 UF, 25V C8360 F1K1E106A136 C 10UF, 25V C8361 F1H1H223A219 C 0.022UF, 50V C8362 F1H1H222A219 C 2200PF, 50V...
  • Page 49 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks D7707 B0ECKM000048 DIODE D7708 B0BC01400017 ZENER DIODE D7709 B0ECKM000048 DIODE D7710 B0ECKM000048 DIODE D7711 B0BC01400017 ZENER DIODE D7712 B0ECKM000048 DIODE D7713 B0ADCJ000100 DIODE D7714...
  • Page 50 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks IC7813 C0DBAYY00922 IC8001 C1AB00003370 IC8002 C3ABSY000068 IC8004 TVRS167 IC8301 C0DBAYY00462 IC8502 TVRR985AE IC8503 TVRS168AB IC8850 C0DBGYY00930 D0GDR00J0004 M 0 OHM, 1/8W D0GDR00J0004 M 0 OHM, 1/8W...
  • Page 51 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks L8010 J0JHC0000045 CHIP INDUCTOR L8011 J0JHC0000045 CHIP INDUCTOR L8012 J0JHC0000045 CHIP INDUCTOR L8013 J0JHC0000045 CHIP INDUCTOR L8014 J0JHC0000045 CHIP INDUCTOR L8016 J0JHC0000045 CHIP INDUCTOR...
  • Page 52 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks Q8005 B1CBGD000001 Q8301 DSA2001S0L TRANSISTOR Q8302 DSA2001S0L TRANSISTOR Q8303 B1ABCE000015 TRANSISTOR Q8304 B1ABCE000015 TRANSISTOR Q8305 B1ADCF000194 TRANSISTOR Q8306 B1ADCF000194 TRANSISTOR Q8307 B1ABCE000015 TRANSISTOR Q8308...
  • Page 53 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks R2761 D0GA101JA015 M 100 OHM, J,1/16W R2762 D0GA101JA015 M 100 OHM, J,1/16W R2763 D0GA473JA015 M 47KOHM, J,1/16W R2764 D0GA473JA015 M 47KOHM, J,1/16W R2765 D0GA103JA015...
  • Page 54 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks R4794 D0GA102JA023 M1KOHM, J.1/16 W R4795 D0GA102JA023 M1KOHM, J.1/16 W R4803 D0GA472JA023 M 4.7KOHM, J,1/16W R4817 D0GA103JA015 M 10KOHM,J,1/16W R4820 D0GA473JA015 M 47KOHM, J,1/16W...
  • Page 55 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks R7713 D1BD3600A066 M 360 OHM,F.1/8W R7714 D1BD3600A066 M 360 OHM,F.1/8W R7715 D1BD3600A066 M 360 OHM,F.1/8W R7716 D1BD3600A066 M 360 OHM,F.1/8W R7717 D1BD3600A066 M 360 OHM,F.1/8W...
  • Page 56 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks R7860 D1BD5602A066 M 56KOHM,F.1/8W R7863 D0GD153JA052 M 15KOHM,J,1/8W R7864 D0GD471JA052 M 470 OHM,J,1/8W R7865 D0GD220JA059 M 22 OHM,J,1/4W R7866 D0GD123JA052 M 12KOHM,J,1/8W R7867 ERX2SJR22P M0.22 OHM, J, 2W...
  • Page 57 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks R8037 D0GA103JA015 M 10KOHM,J,1/16W R8039 EXB28V472JX M 4.7 OHM 1/32 W R8043 D0GA473JA015 M 47KOHM, J,1/16W R8044 D0GA102JA023 M1KOHM, J.1/16 W R8045 D0GA473JA015 M 47KOHM, J,1/16W...
  • Page 58 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks R8390 D0GA101JA015 M 100 OHM, J,1/16W R8391 D1BA5362A014 M 53.6KOHM,J.1/16 W R8393 D1BA1002A014 M 10KOHM,J. 1/16 W R8394 D0GA222JA023 M 2.2KOHM, J,1/16W R8501 D0GA680JA023...
  • Page 59 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks ZA5417 K4ZZ01000289 TERMINAL ZA5421 K4ZZ01000289 TERMINAL ZA5422 K4ZZ01000289 TERMINAL ZA5423 K4ZZ01000289 TERMINAL ZA7000 K4AD01A00002 TERMINAL ZA7001 K4AD01A00002 TERMINAL ZA7003 K4AD01A00002 TERMINAL S-32...
  • Page 60 Model No. : TC-L24C3 Exploded View S-33...
  • Page 61 Model No. : TC-L24C3 Packing S-34...
  • Page 62 Model No. : TC-L24C3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks N2QAYB000570 REMOTE CONTROL K0RB00700018 CONTROL BUTTON UNIT K2CB2YY00055 AC CORD L0AA10B00002 SPEAKER L5EDDYY00206 LCD PANEL TBL0E0135 PEDESTAL ASSY TBMJ015-1 MODEL NAME PLATE TEWB625 GASKET t8*W10*L20...

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