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

La01 chassis
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Service Manual
• Design and specifications are subject to change without notice. Mass and dimensions shown are approximate.
All manuals and user guides at all-guides.com
TC-L32C20P
Chassis: LA01
ORDER NO. PBRAS1012061CE
LCD TV
© 2010 Panasonic do Brasil Limitada
CS Division
Technical Support

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  • Page 1 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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.

  • Page 3: Safety Precautions

    All manuals and user guides at all-guides.com 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.

  • Page 4: Warning

    All manuals and user guides at all-guides.com 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)

    All manuals and user guides at all-guides.com 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.

  • Page 6: Service Navigation

    All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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...

  • Page 8: Specifications

    All manuals and user guides at all-guides.com 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) ×...

  • Page 9: Service Mode

    All manuals and user guides at all-guides.com 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.

  • Page 10: Srv-Tool

    All manuals and user guides at all-guides.com 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.

  • Page 11: Service Mode Adjustment

    All manuals and user guides at all-guides.com 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.

  • Page 12: Troubleshooting Guide

    All manuals and user guides at all-guides.com 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...

  • Page 13: Power Led Blinking Timing Chart

    All manuals and user guides at all-guides.com 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...

  • Page 14: Disassembly And Assembly Instructions

    All manuals and user guides at all-guides.com TC-L32C20P 7 Disassembly and Assembly Instructions 7.1. AC Cord Dressing TREATMENT AC CORD.

  • Page 15: Ac Cord Installation

    All manuals and user guides at all-guides.com 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.
  • Page 16 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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.
  • Page 19 All manuals and user guides at all-guides.com TC-L32C20P 7.6. Side AV Assembly Installation 1. Put SIDE AV BRACKET ASSY ON LCD PANEL. 2. Fix them with screw.
  • Page 20 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com TC-L32C20P 7.8. LCD Panel Installation Put LCD PANEL on the CABINET.

  • Page 22: Led Panel Installation

    All manuals and user guides at all-guides.com 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.
  • Page 23 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com TC-L32C20P Step 3 Setting ROTATION PLATE and BUSH with SCREWS.
  • Page 32 All manuals and user guides at all-guides.com 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).
  • Page 33 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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...
  • Page 35 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com TC-L32C20P 9 Block Diagram 9.1. Main Block Diagram...

  • Page 37: Wiring Connection Diagram

    All manuals and user guides at all-guides.com 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...
  • Page 38 All manuals and user guides at all-guides.com TC-L32C20P 11 Schematic Diagram 11.1. Schematic Diagram Notes...
  • Page 39 All manuals and user guides at all-guides.com TC-L32C20P 11.2. A-Board (1/17) Schematic Diagram...
  • Page 40 All manuals and user guides at all-guides.com TC-L32C20P 11.3. A-Board (2/17) Schematic Diagram...
  • Page 41 All manuals and user guides at all-guides.com TC-L32C20P 11.4. A-Board (3/17) Schematic Diagram...
  • Page 42 All manuals and user guides at all-guides.com TC-L32C20P 11.5. A-Board (4/17) Schematic Diagram...
  • Page 43 All manuals and user guides at all-guides.com TC-L32C20P 11.6. A-Board (5/17) Schematic Diagram...
  • Page 44 All manuals and user guides at all-guides.com TC-L32C20P 11.7. A-Board (6/17) Schematic Diagram...
  • Page 45 All manuals and user guides at all-guides.com TC-L32C20P 11.8. A-Board (7/17) Schematic Diagram...
  • Page 46 All manuals and user guides at all-guides.com TC-L32C20P 11.9. A-Board (8/17) Schematic Diagram...
  • Page 47 All manuals and user guides at all-guides.com TC-L32C20P 11.10. A-Board (9/17) Schematic Diagram...
  • Page 48 All manuals and user guides at all-guides.com TC-L32C20P 11.11. A-Board (10/17) Schematic Diagram...
  • Page 49 All manuals and user guides at all-guides.com TC-L32C20P 11.12. A-Board (11/17) Schematic Diagram...
  • Page 50 All manuals and user guides at all-guides.com TC-L32C20P 11.13. A-Board (12/17) Schematic Diagram...
  • Page 51 All manuals and user guides at all-guides.com TC-L32C20P 11.14. A-Board (13/17) Schematic Diagram...
  • Page 52 All manuals and user guides at all-guides.com TC-L32C20P 11.15. A-Board (14/17) Schematic Diagram...
  • Page 53 All manuals and user guides at all-guides.com TC-L32C20P 11.16. A-Board (15/17) Schematic Diagram...
  • Page 54 All manuals and user guides at all-guides.com TC-L32C20P 11.17. A-Board (16/17) Schematic Diagram...
  • Page 55 All manuals and user guides at all-guides.com TC-L32C20P 11.18. A-Board (17/17) Schematic Diagram...

  • Page 56: K Board

    All manuals and user guides at all-guides.com TC-L32C20P 11.19. K-Board Schematic Diagram...

  • Page 57: P Board

    All manuals and user guides at all-guides.com TC-L32C20P 11.20. P-Board Schematic Diagram...
  • Page 58 All manuals and user guides at all-guides.com TC-L32C20P 11.21. V-Board Schematic Diagram...

  • Page 59: Printed Circuit Board

    All manuals and user guides at all-guides.com 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...

  • Page 60: A-Board

    All manuals and user guides at all-guides.com 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...

  • Page 61: P-Board

    All manuals and user guides at all-guides.com TC-L32C20P 12.3. P-Board 12.7. P-Board P-Board (A Side) TNPA5123...
  • Page 62 All manuals and user guides at all-guides.com 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...
  • Page 63 All manuals and user guides at all-guides.com 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...

  • Page 64: Exploded View And Replacement Parts List

    All manuals and user guides at all-guides.com 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...

  • Page 65: Mechanical Parts Location

    All manuals and user guides at all-guides.com 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...

  • Page 66: Packing Exploded View 1

    All manuals and user guides at all-guides.com TC-L32C20P 13.2.5. Packing Exploded View 1...

  • Page 67: Packing Exploded View 2

    All manuals and user guides at all-guides.com TC-L32C20P 13.2.6. Packing Exploded View 2...

  • Page 68: Electrical Replacement Parts List

    All manuals and user guides at all-guides.com 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.
  • Page 69 All manuals and user guides at all-guides.com 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%...
  • Page 70 All manuals and user guides at all-guides.com 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%...
  • Page 71 All manuals and user guides at all-guides.com 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%...
  • Page 72 All manuals and user guides at all-guides.com 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%...
  • Page 73 All manuals and user guides at all-guides.com 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.
  • Page 74 All manuals and user guides at all-guides.com 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...
  • Page 75 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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...
  • Page 77 All manuals and user guides at all-guides.com 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...
  • Page 78 All manuals and user guides at all-guides.com 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...
  • Page 79 All manuals and user guides at all-guides.com 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...
  • Page 80 All manuals and user guides at all-guides.com 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.
  • Page 81 All manuals and user guides at all-guides.com 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...
  • Page 82 All manuals and user guides at all-guides.com 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...
  • Page 83 All manuals and user guides at all-guides.com 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...
  • Page 84 All manuals and user guides at all-guides.com Panasonic do Brasil Limitada DIVISÃO CS - SETOR DE APOIO TÉCNICO Rod. Presidente Dutra, Km 155 São José dos Campos - SP...

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