Panasonic TC-L32C20P Service Manual
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Panasonic TC-L32C20P Service Manual

Panasonic TC-L32C20P Service Manual

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Service Manual
• Design and specifications are subject to change without notice. Mass and dimensions shown are approximate.
TC-L32C20P
Chassis: LA01
© 2010 Panasonic do Brasil Limitada
CS Division
Technical Support
ORDER NO. PBRAS1012061CE
LCD TV

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Summary of Contents for Panasonic TC-L32C20P

  • Page 1 ORDER NO. PBRAS1012061CE Service Manual LCD TV TC-L32C20P Chassis: LA01 • Design and specifications are subject to change without notice. Mass and dimensions shown are approximate. © 2010 Panasonic do Brasil Limitada CS Division Technical Support...

  • Page 2: Table Of Contents

    TC-L32C20P CONTENTS 8 Measurements and Adjustments ............24 1 Safety Precautions ................3 1.1. General Guidelines ................3 8.1. Voltage chart of A-board ..............24 1.1.1. Leakage Current Cold Check ............3 8.2. Voltage chart of P-board ..............24 1.1.2. Leakage Current Hot Check (See Figure1.) ........3 9 Block Diagram ..................

  • Page 3: Safety Precautions

    TC-L32C20P 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-L32C20P 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-L32C20P 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-L32C20P 3 Service Navigation 3.1. Service Hint Board Name Function A Board AVSW, TUN, GENX, PEAKS-AVCEEP, TEMP TUN V Board REMOTE, LED, LUMINUNCE SENSOR K Board CONTROL BUTTON, POWER BUTTON P BOARD POWER AC / DC...
  • Page 7 TC-L32C20P 3.2. Applicable signals Input signal that can be displayed * Mark: Applicable input signal for Component (Y, P ), HDMI and PC horizontal frequency (kHz) vertical frequency (Hz) COMPONENT HDMI 525 (480) / 60i 15.73 59.94 525 (480) /60p 31.47...

  • Page 8: Specifications

    TC-L32C20P 4 Specifications TC-L32C20P 110-220 V ~ 50/60 Hz Alimentación Promedio 92 W Condición en espera 0,3 W Aspecto 16:9 80 cm (diagonal) Tamaño visible de la pantalla 698 mm (L) × 393 mm (A) 1.049.088 (1.366 (L) × 768 (A) Número de pixels...

  • Page 9: Service Mode

    TC-L32C20P 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 10: Srv-Tool

    TC-L32C20P 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 11: Service Mode Adjustment

    TC-L32C20P 5.3. Service Mode Adjustment 1. Press the “RECALL” button on the remote control and press “ -” vol button on the LCD panel. 2. Press button number 1 on the remote control to select for Adjustment. 3. Self Check to Exit.

  • Page 12: Troubleshooting Guide

    TC-L32C20P 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 13: Power Led Blinking Timing Chart

    TC-L32C20P 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 14: Disassembly And Assembly Instructions

    TC-L32C20P 7 Disassembly and Assembly Instructions 7.1. AC Cord Dressing TREATMENT AC CORD.

  • Page 15: Ac Cord Installation

    TC-L32C20P 7.2. AC Cord Installation 1. Put on the AC CORD BRACKET on the CABINET. 2. Fix the AC CORD BRACKET with SCREW. 3. Insert AC CORD connector into P-PCB connector. 4. Clamp the AC CORD. 5. Insert AC CORD bushing into the AC CORD BRACKET.
  • Page 16 TC-L32C20P 7.3. VESA Rail Installation 1. Stick the FELT. 2. Metal Support on the LCD PANEL. → (insert positioning. 3. Fix them with SCREW.
  • Page 17 TC-L32C20P 7.4. VESA Metal Assembly 1. Put VESA METAL TOP AT L & R on the METAL SUPPOUT. 2. Fix them with SCREW.
  • Page 18 TC-L32C20P 7.5. Control Panel Assembly 1. Stick the FELT to CONTROL BUTTON. 2. Wire connecting. (K1) 3. Assemble POWER BUTTON to the K-PRINT. 4. Assemble K-PRINT, CONTROL BUTTON, CONTROL PANEL BRACKET. 5. Fix them with SCREWS. 6. Stick the FELT to CONTROL PANEL BRACKET.
  • Page 19 TC-L32C20P 7.6. Side AV Assembly Installation 1. Put SIDE AV BRACKET ASSY ON LCD PANEL. 2. Fix them with screw.
  • Page 20 TC-L32C20P 7.7. SP Installation 1. Fix SP RUBBER BUSH on SP UNIT. 2. Put SP BRACKET on the CABINET. 3. Fix them with SCREW. 4. Set the SPEAKER UNIT.

  • Page 21: Lcd Panel Assembly Installation

    TC-L32C20P 7.8. LCD Panel Installation Put LCD PANEL on the CABINET.

  • Page 22: Led Panel Installation

    TC-L32C20P 7.9. LED Panel Installation & Fitting 1. Fix LED PANEL on CABINET. 2. Insert an A10-V10 lead connector in V-Print. 3. Put V-PCB on LED PANEL. 4. Fix LED PANEL ass’y with SCREW. 5. Insert the CLAMPER and stick FELT at V10 wire.
  • Page 23 TC-L32C20P 7.10. LCD Mounting Installation 1 1. Put clamper on METAL BRACKET BOTTOM. 2. Put METAL BRACKET BOTTOM on the LCD PANEL. 3. Fix them with screw. 4. Wire dressing and lock CLAMPER.
  • Page 24 TC-L32C20P 7.11. LCD Mounting Installation 2 1. Put BARRIER & METAL BRACKET TOP-L on the LCD PANEL. 2. Fix them with screw.
  • Page 25 TC-L32C20P 7.12. LCD Mounting Installation 3 1. Put METAL BRACKET-LCD-SIDE on the LCD PANEL. 2. Fix them with screw.
  • Page 26 TC-L32C20P 7.13. Metal Bracket Installation 1. Put Metal Bracket Top R on the LCD PANEL. 2. Fix them with SCREW. 3. Insert the CLAMPER.
  • Page 27 TC-L32C20P 7.14. EMI Spec (LVDS) 1. Put LVDS HARNESS to LCD PANEL with FELT. → → → 2. Put PET/AL-TAPE on LCD PANEL.
  • Page 28 TC-L32C20P 7.15. PCB and Clamper Assembly 1. Put the P-PCB, A-PCB on the MTG METAL. 2. Fix them with SCREWS. 3. Setting the CLAMPER. 4. Insert inv-lead in P PCB.
  • Page 29 TC-L32C20P 7.16. PB MTG Installation 1. Put METAL BRACKET PCB-AL on the LCD PANEL. 2. Put METAL BRACKET PCB-A S on the LCD PANEL. 3. Fix them with SCREW.

  • Page 30: Pedestal Assembly

    TC-L32C20P 7.17. Pedestal Assembly 1 Step 1 Setting PEDESTAL COVER and STAND MTG SPACER and BASE PLATE with SCREWS. Step 2 1. Stick the RUBBER FOOT at bottom ROTATION PLATE. 2. Make sure ROTATION PLATE surfacefully cover by grease. Follow the picture...
  • Page 31 TC-L32C20P Step 3 Setting ROTATION PLATE and BUSH with SCREWS.
  • Page 32 TC-L32C20P 7.18. Pedestal Assembly 2 1. Lay down the unit so that the rear cover faces upward. 2. Remove the 4 screws. 3. Remove the pedestal. 7.19. Rear cover 1. Remove the 15 screws (A). 2. Remove the 2 screws (B),...
  • Page 33 TC-L32C20P 7.20. Stand MTG Assembly (Refer each part no. to part list) 1. STAND MTG are put in BAG. 2. BAG is wrapped around STAND MTG. 3. SCREW is put in the BAG and use yellow tape to hold screw bag.

  • Page 34: Measurements And Adjustments

    TC-L32C20P 8 Measurements and Adjustments 8.1. Voltage chart of A-board Check voltage as follows at Reception state VOLTAGE TEST POINT SPECIFICATION (Reception state) STB3.3V TP4716 3.3 ± 0.16 V SUB5V TP4724 5 ± 0.25 V SOUND15V TP2765 18 ± 2 V TP2768 6.1 ±...
  • Page 35 TC-L32C20P 8.4. Picture level adjustment (VIDEO) Instrument Name Remarks 1. REMOTE TRANSMITTER 2. Video signal generator (100% Color bar) Adjustment or Inspection Procedure Remarks <procedure> 1. Receive 100% Color bar. (ASPECT: ZOOM or FULL, Picture mode: VIVID, AI Picture: OFF) * BACK LIGHT MAX VALUE <Inspection>...

  • Page 36: Block Diagram

    TC-L32C20P 9 Block Diagram 9.1. Main Block Diagram...

  • Page 37: Wiring Connection Diagram

    TC-L32C20P 10 Wiring Connection Diagram 1. Wiring No. 1 ~ No. 5 2. Remove dust of terminal of LVDS and PB connector. (by ion blow) Pos. A14. 3. Insert LVDS into Pos.A14. Clamper Wire No.1 A03 - P2 No.2 A10 - K02 No.3 A04 - V10...

  • Page 38: Schematic Diagram

    TC-L32C20P 11 Schematic Diagram 11.1. Schematic Diagram Notes...
  • Page 39 TC-L32C20P 11.2. A-Board (1/17) Schematic Diagram...
  • Page 40 TC-L32C20P 11.3. A-Board (2/17) Schematic Diagram...
  • Page 41 TC-L32C20P 11.4. A-Board (3/17) Schematic Diagram...
  • Page 42 TC-L32C20P 11.5. A-Board (4/17) Schematic Diagram...
  • Page 43 TC-L32C20P 11.6. A-Board (5/17) Schematic Diagram...
  • Page 44 TC-L32C20P 11.7. A-Board (6/17) Schematic Diagram...
  • Page 45 TC-L32C20P 11.8. A-Board (7/17) Schematic Diagram...
  • Page 46 TC-L32C20P 11.9. A-Board (8/17) Schematic Diagram...
  • Page 47 TC-L32C20P 11.10. A-Board (9/17) Schematic Diagram...
  • Page 48 TC-L32C20P 11.11. A-Board (10/17) Schematic Diagram...
  • Page 49 TC-L32C20P 11.12. A-Board (11/17) Schematic Diagram...
  • Page 50 TC-L32C20P 11.13. A-Board (12/17) Schematic Diagram...
  • Page 51 TC-L32C20P 11.14. A-Board (13/17) Schematic Diagram...
  • Page 52 TC-L32C20P 11.15. A-Board (14/17) Schematic Diagram...
  • Page 53 TC-L32C20P 11.16. A-Board (15/17) Schematic Diagram...
  • Page 54 TC-L32C20P 11.17. A-Board (16/17) Schematic Diagram...
  • Page 55 TC-L32C20P 11.18. A-Board (17/17) Schematic Diagram...

  • Page 56: K Board

    TC-L32C20P 11.19. K-Board Schematic Diagram...

  • Page 57: P Board

    TC-L32C20P 11.20. P-Board Schematic Diagram...
  • Page 58 TC-L32C20P 11.21. V-Board Schematic Diagram...

  • Page 59: Board

    TC-L32C20P 12 Printed Circuit Board 12.1. A-Board A-Board (A Side) TNPH0849 Parts Location Ref. No Location Ref. No Location Ref. No Location Ref. No Location IC2950 IC5600 IC8400 D3300 IC2951 IC5601 IC8401 IC2952 IC5603 IC8851 IC3000 IC5604 IC8852 IC3900 IC8200...

  • Page 60: A-Board

    TC-L32C20P 12.2. A-Board A-Board (B Side) TNPH0849 Parts Location Ref. No Location Ref. No Location Ref. No Location Ref. No Location IC1101 IC4802 IC5416 D3300 IC2301 IC4803 IC8001 IC3350 IC4804 IC8402 IC3904 IC5000 IC8921 IC3905 IC5200 IC4800 IC5220...

  • Page 61: P-Board

    TC-L32C20P 12.3. P-Board 12.7. P-Board P-Board (A Side) TNPA5123...
  • Page 62 TC-L32C20P Parts Location Ref. No Location Ref. No Location Ref. No Location Ref. No Location IC7201 D7001 D7409 D7874 IC7301 D7002 D7501 D7875 IC7401 D7102 D7503 D7877 IC7501 D7201 D7504 D7880 IC7601 D7202 D7601 D7881 IC7800 D7204 D7602 D7882 IC7801...
  • Page 63 TC-L32C20P 12.8. P-Board 12.4. P-Board P-Board (B Side) TNPA5123 Parts Location Ref. No Location Ref. No Location Ref. No Location Ref. No Location IC7301 D7001 D7306 D7408 IC7401 D7002 D7307 D7501 D7102 D7314 D7503 D7201 D7401 D7504 D7202 D7402 D7601...

  • Page 64: Exploded View And Replacement Parts List

    TC-L32C20P 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 65: Mechanical Parts Location

    TC-L32C20P 13.2.2. Mechanical Parts Location TV/AV P-Board A-Board SUB MENU R-TUNE SLEEP 13.2.3. Mechanical Replacement Parts List 13.2.4. Assembled Boards REF. NO. PART NO. PART NAME & DESCRIPTION PART NO. PART NAME & DESCRIPTION GABINETE COMPLETO TNPH0849GD-CS A-Board TTY2B32C20B-CS P-Board...

  • Page 66: Packing Exploded View 1

    TC-L32C20P 13.2.5. Packing Exploded View 1...

  • Page 67: Packing Exploded View 2

    TC-L32C20P 13.2.6. Packing Exploded View 2...

  • Page 68: Electrical Replacement Parts List

    TC-L32C20P 13.2.7. Electrical Replacement Parts List REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION F1G1H102A730 CERAMIC CAP. SMD 1 nF 50V 10% CAPACITORS C2753 F1G1C104A116 CERAMIC CAP. SMD 100 nF 16V 10% F1G1H102A730 CERAMIC CAP.
  • Page 69 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION F1G1H561A730 CERAMIC CAP. SMD 560 PF 50V 10% F1G1H330A731 CERAMIC CAP. SMD 33 PF 50V 5% C3153 C4829 F1G1H561A730 CERAMIC CAP. SMD 560 PF 50V 10% F1K1E106A136 CERAMIC CAP.
  • Page 70 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION F1J1E105A231 CERAMIC CAP. SMD 1 μF 25V 10% F1G1C104A116 CERAMIC CAP. SMD 100 nF 16V 10% C5611 C6733 F1H1C105A145 CERAMIC CAP. SMD 1.000 nF 16V 10% F1G1C104A116 CERAMIC CAP.
  • Page 71 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION F1J1E333A226 CERAMIC CAP. SMD 33 nF 25V F1B3J100A013 CERAMIC CAP. 10 PF 6.000V 5% C7501 C7871 F2A1E102A100 ELECTROLYTIC 1.000 μF 25V 20% F1B3J100A013 CERAMIC CAP.
  • Page 72 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION F1G1C104A116 CERAMIC CAP. SMD 100 nF 16V 10% F1G1C104A116 CERAMIC CAP. SMD 100 nF 16V 10% C8020 C8083 F1G1C104A116 CERAMIC CAP. SMD 100 nF 16V 10% F1H0J1050013 CERAMIC CAP.
  • Page 73 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION F1G1C104A116 CERAMIC CAP. SMD 100 nF 16V 10% DZ2J033M0L ZENER SMD 0,2 5,0 mA C8923 D5002 F1G1C103A116 CERAMIC CAP. SMD 10 nF 16V 10%...
  • Page 74 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION B0HAKR000004 RECTIFIER 600V 0,8 A SMD IC VOLTAGE REGULATOR D7805 IC5200 C0DBEYY00123 B0HAKR000004 RECTIFIER 600V 0,8 A SMD IC VOLTAGE REGULATOR D7806 IC5220...
  • Page 75 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION SMD INDUCTOR-C 200MA J0JHC0000045 SMD INDUCTOR 25% 120 ΩS, 2A L3120 J0JCC0000287 L8021 SMD INDUCTOR-C 200MA J0JHC0000045 SMD INDUCTOR 25% 120 ΩS, 2A...
  • Page 76 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION SMD TRANS. 50V 100,0 mA SMD RES.22Ω 1/16 W 5% Q7754 DSA2001S0L R0977 ERJ2GEJ220X FET RADIAL CH N RADIAL 25W 60V 30A SMD RES.22Ω 1/16 W 5%...
  • Page 77 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION SMD RES.10Ω 1/16 W 5% SMD RES.220Ω 0,063W 5% R2304 D0GA100JA015 R3014 ERJ2GEJ221X SMD RES.10 kΩ 0,063W 5% SMD RES.4,70 kΩ 1/16 W 5%...
  • Page 78 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION SMD RES.22Ω 1/16 W 5% SMD RES.100 kΩ 0,063W 5% R4548 ERJ2GEJ220X R4763 ERJ2GEJ104X SMD RES.150Ω 1/16 W 5% SMD RES.100 kΩ 0,063W 5%...
  • Page 79 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION SMD RES.470Ω 1/16 W 5% SMD RES.8,20 kΩ 1/16 W 1% R4940 D0GA471JA015 R5205 D1BA8201A014 SMD RES.22 kΩ 1/16 W 5% SMD RESISTOR 0Ω 1/8 W...
  • Page 80 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION D0GAR00Z0001 SMD RESISTOR 0Ω 1/16 W ERJ6ENF4700V PRECISION RES. 470Ω 1/10 W 1% R6719 R7302 SMD RES.4,70 kΩ 1/16 W 5% CARBON RES. 1 MΩ 1/4 W 5%...
  • Page 81 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION SMD RES.10 kΩ 1/8 W 5% ERJ6ENF1802V PRECISION RES. 18 kΩ 1/10 W 1% R7702 D0GD103JA036 R7876 SMD RES.1 kΩ 1/8 W 5% ERJ6ENF1802V PRECISION RES.
  • Page 82 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION REF. NO. PART NO. PART NAME & DESCRIPTION EXB2HVR000V SMD RES.0 Ω SMD RES.10 kΩ 0,063W 5% R8476 R8669 ERJ2GEJ103X D0GAR00Z0001 SMD RESISTOR 0Ω 1/16 W SMD RES.2,20 kΩ 1/16 W 5%...
  • Page 83 TC-L32C20P REF. NO. PART NO. PART NAME & DESCRIPTION TRANSFORMERS TRAFO PFC 230 V 15.750 Hz 0,140 kVA T7201 G4D3A0000208 TRAFO CHOPER MAIN 100.000 Hz 150 W T7301 G4DYA0000212 TRAFO CHOPER STB 100.000 Hz 100 W T7401 G4DYA0000211 G4FYA0000014 TRANSFORMER 1900 V 40 KHZ...
  • Page 84 Panasonic do Brasil Limitada DIVISÃO CS - SETOR DE APOIO TÉCNICO Rod. Presidente Dutra, Km 155 São José dos Campos - SP...

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