Panasonic TC-L32U3 Service Manual
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Panasonic TC-L32U3 Service Manual

Panasonic TC-L32U3 Service Manual

Chassis: la14
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See also: Owner's Manual

TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.1.1. Leakage Current Cold Check---------------------- 3
1.) --------------------------------------------------------- 3
2 Warning -------------------------------------------------------------- 4
2.2. About lead free solder (PbF)---------------------------- 5
3 Service Navigation ----------------------------------------------- 6
3.1. Service Hint ------------------------------------------------- 6
3.2. Applicable signals ----------------------------------------- 7
4 Specifications ----------------------------------------------------- 8
5 Service Mode ------------------------------------------------------ 9
5.1. How to enter into Service Mode ----------------------- 9
5.1.1. Contents of adjustment mode --------------------- 9
5.1.2. How to exit---------------------------------------------- 9
5.2. SRV-TOOL -------------------------------------------------10
5.2.1. How to access ----------------------------------------10
Model No.
Chassis:
Destination:
PAGE
5.2.2. Display of SOS History ---------------------------- 10
5.2.3. POWER ON TIME/COUNT ----------------------- 10
5.2.4. Exit ------------------------------------------------------ 10
5.2.5. Self Check Mode ------------------------------------ 11
5.2.6. Hotel Mode Adjustment ---------------------------- 11
5.2.7. Hotel Mode-------------------------------------------- 11
6 Troubleshooting Guide --------------------------------------- 12
6.1. Check of the IIC bus lines------------------------------ 12
6.1.1. How to access --------------------------------------- 12
6.1.2. Exit ------------------------------------------------------ 12
6.1.3. Screen display --------------------------------------- 12
6.2. Power LED Blinking timing chart --------------------- 13
6.3. No Power--------------------------------------------------- 13
7.1. AC Cord Dressing---------------------------------------- 14
7.2. AC Cord Installation ------------------------------------- 15
7.3. Control Panel Assembly-------------------------------- 16
7.4. Speaker Assembly --------------------------------------- 17
7.5. LCD Panel Assembly ----------------------------------- 18
ORDER NO. MTV1101001CE
LCD HDTV
TC-L32U3
LA14
USA
© Panasonic Corporation 2011. Unauthorized
copying and distribution is a violation of law.
PAGE

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Summary of Contents for Panasonic TC-L32U3

  • Page 1: Table Of Contents

    5.1.2. How to exit---------------------------------------------- 9 7.3. Control Panel Assembly-------------------------------- 16 5.2. SRV-TOOL -------------------------------------------------10 7.4. Speaker Assembly --------------------------------------- 17 5.2.1. How to access ----------------------------------------10 7.5. LCD Panel Assembly ----------------------------------- 18 © Panasonic Corporation 2011. Unauthorized copying and distribution is a violation of law.
  • Page 2 TC-L32U3 7.6. LCD Panel Fixing & Handling Method -------------- 19 7.7. LED Panel and Bracket Assembly ------------------ 20 7.8. Screw and Board Assembly --------------------------- 21 7.9. Inv-Lead & Clamper Assembly ----------------------- 22 7.10. Bracket Assembly ---------------------------------------- 23 7.11. Disassembly P board and A board ------------------ 24 7.12.

  • Page 3: Safety Precautions

    TC-L32U3 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-L32U3 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-L32U3 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-L32U3 3 Service Navigation 3.1. Service Hint Board Name Function A BOARD Digital Signal Processor, Tuner KA BOARD Remote Receiver, LED K BOARD Power button, Control panel button and control panel bracket together. P BOARD Power Supply...

  • Page 7: Applicable Signals

    TC-L32U3 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-L32U3 4 Specifications Power Source AC 110-127 V, 60 Hz Power Consumption Rated Power Consumption 107 W Standby condition 0.3 W Display panel Aspect Ratio 16:9 Visible screen size 32” class (31.5 inches measured diagonally) (W × H × Diagonal) 27.5”...

  • Page 9: Service Mode

    TC-L32U3 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-L32U3 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: Self Check Mode

    TC-L32U3 5.2.5. Self Check Mode 1. Press the ‘MENU’ button (on the remote control) and the ‘VOL DOWN’ button on the LCD panel. 2. Press ON/OFF button on the panel to Exit. 5.2.6. Hotel Mode Adjustment 1. Press the ‘VOLUME DOWN’ button on the TV panel and simultaneously press the AV button on the remote control 3 times to enter Hotel Mode.

  • Page 12: Troubleshooting Guide

    TC-L32U3 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-L32U3 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-L32U3 7 Disassembly and Assembly Instructions 7.1. AC Cord Dressing...

  • Page 15: Ac Cord Installation

    TC-L32U3 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: Control Panel Assembly

    TC-L32U3 7.3. Control Panel Assembly 1. Fix K print_Power button_control panel button and control panel bracket together . 2. Fix 3 pcs screw.

  • Page 17: Speaker Assembly

    TC-L32U3 7.4. Speaker Assembly 1. Fix SPONGE at SP UNIT. 2. Fix SP RUBBER BUSH at speaker unit. 3. Insert speaker to SP BRACKET. 4. Set speaker terminal direction follow spec.

  • Page 18: Lcd Panel Assembly

    TC-L32U3 7.5. LCD Panel Assembly 1. Put LVDS Hardness to LCD PANEL. 2. Put PET/AL-TAPE on LCD PANEL.

  • Page 19: Lcd Panel Fixing & Handling Method

    TC-L32U3 7.6. LCD Panel Fixing & Handling Method 1. Place down the cabinet as shown below. 2. Fix LCD panel into the cabinet by taking below precautions. Other general precautions 1. Do not press panel surface to avoid blue spot on the panel display.

  • Page 20: Led Panel And Bracket Assembly

    TC-L32U3 7.7. LED Panel and Bracket Assembly 1. Fixing LED panel at cabinet and fix screw. 2. Stick clamper at cabinet. Fixing Metal bracket, P bracket and Vesa bracket.

  • Page 21: Screw And Board Assembly

    TC-L32U3 7.8. Screw and Board Assembly Fixing screw at bracket and panel follow spec. Fix P-Print and A-Print board to panel.

  • Page 22: Inv-Lead & Clamper Assembly

    TC-L32U3 7.9. Inv-Lead & Clamper Assembly 1. Setting the CLAMPER. 2. Insert inv-lead in P PCB.

  • Page 23: Bracket Assembly

    TC-L32U3 7.10. Bracket Assembly 1. Fix control panel, side av and speaker bracket. 2. Fix 4 pcs screw XTB4 + 15JFJ at speaker bracket.

  • Page 24: Disassembly P Board And A Board

    TC-L32U3 7.11. Disassembly P board and A board 1. Open the control panel and side av bracket. 2. Open 7 pcs screw at P Board. 3. Open 5 pcs screw at A Board. 4. Disconnect the invertor connector.

  • Page 25: Back Cover Assembly

    TC-L32U3 7.12. Back Cover Assembly 1 1. Put VESA METAL (BC) on the BACK COVER. 2. Fix them with SCREWS.

  • Page 26: Back Cover Assembly

    TC-L32U3 7.13. Back Cover Assembly 2 1. Fix the BACK COVER with SCREWS. 2. Insert COVER (Adj. window).

  • Page 27: Disassembly Back Cover Assembly

    TC-L32U3 7.14. Disassembly Back Cover Assembly 1. Open the BACK COVER with 13 SCREWS. 2. Open the COVER (Adj. window)

  • Page 28: Pedestal Assembly

    TC-L32U3 7.15. Pedestal Assembly 1 1. Fixing base plate to pedestal cover and fix screw 6pcs. 2. Fixing base plate and fix screw 2 type.

  • Page 29: Pedestal Assembly

    TC-L32U3 7.16. Pedestal Assembly 2 Insert pedestal to set cover. Follow below picture.

  • Page 30: Stand Mounting Assembly

    TC-L32U3 7.17. Stand Mounting 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 31: Measurements And Adjustments

    TC-L32U3 8 Measurements and Adjustments 8.1. Voltage chart of A-board Check +B voltage of A PCB VOLTAGE TEST POINT SPECIFICATION (Reception state) STB3.3V TP4716 3.3 ± 0.16 V SUB5V TP4723 5.1 ± 0.25 V AVDD12.5V TP7019 12.5 ± 2 V TCON2.5V...

  • Page 32: Block Diagram

    TC-L32U3 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 STB3.3V SUB1.8V DET (L E D :2 T IM E S )

  • Page 33: Detailed Block Diagram (1/2)

    TC-L32U3 9.2. Detailed Block Diagram (1/2) MAIN CONTROL PANEL OPERATION KEYS MENU INPUT/OK KEY1 KEY1 KEY3 KEY3 POWER POWER BUTTON POWER SUPPLY H O T C O L D COLD Q4770 RELAY PC7302 D7507 Q7501 SUB_ON SUB_ON Q7301 F16V T7301...

  • Page 34: Detailed Block Diagram (2/2)

    TC-L32U3 9.3. Detailed Block Diagram (2/2) JK8502 SPEAKER_R SPEAKER_L SD CARD D2142 OPTICAL JK4502 JK4501 JK4500 TU8302 JK2101 JK2108A FACTORY DIGITAL OUT MAIN TUNER HDMI1 HDMI2 HDMI3(SIDE) COMP IN PC IN 24KEC_IIC0 24KEC_IIC1 24KEC_IIC2 MCU_IIC YAMON_TX/RX 24KEC_IIC1 IC2106 AUDIO AMP...

  • Page 35: Wiring Connection Diagram

    TC-L32U3 10 Wiring Connection Diagram 10.1. Wire Dressing 1. Insert LVDS cable into A-Print board connector properly. 2. Stick AL+Pet tape at LVDS cable follow below dressing. Clamper Wire No.1 A03 - P2 No.2 A04-K02 No.3 A10-V10 No.4 A11 - SP (L)

  • Page 36: Schematic Diagram

    TC-L32U3 11 Schematic Diagram 11.1. Schematic Diagram Notes...

  • Page 37: A-Board (1/10) Schematic Diagram

    TC-L32U3 11.2. A-Board (1/10) Schematic Diagram...

  • Page 38: A-Board (2/10) Schematic Diagram

    TC-L32U3 11.3. A-Board (2/10) Schematic Diagram...

  • Page 39: A-Board (3/10) Schematic Diagram

    TC-L32U3 11.4. A-Board (3/10) Schematic Diagram...

  • Page 40: A-Board (4/10) Schematic Diagram

    TC-L32U3 11.5. A-Board (4/10) Schematic Diagram...

  • Page 41: A-Board (5/10) Schematic Diagram

    TC-L32U3 11.6. A-Board (5/10) Schematic Diagram...

  • Page 42: A-Board (6/10) Schematic Diagram

    TC-L32U3 11.7. A-Board (6/10) Schematic Diagram...

  • Page 43: A-Board (7/10) Schematic Diagram

    TC-L32U3 11.8. A-Board (7/10) Schematic Diagram...

  • Page 44: A-Board (8/10) Schematic Diagram

    TC-L32U3 11.9. A-Board (8/10) Schematic Diagram...

  • Page 45: A-Board (9/10) Schematic Diagram

    TC-L32U3 11.10. A-Board (9/10) Schematic Diagram...

  • Page 46: A-Board (10/10) Schematic Diagram

    TC-L32U3 11.11. A-Board (10/10) Schematic Diagram...

  • Page 47: Ka-Board Schematic Diagram

    TC-L32U3 11.12. KA-Board Schematic Diagram...

  • Page 48: P-Board Schematic Diagram

    TC-L32U3 11.13. P-Board Schematic Diagram...

  • Page 49: Printed Circuit Board

    TC-L32U3 12 Printed Circuit Board 12.1. A-BOARD A-BOARD (TOP COMPONENT SIDE) TNPH0904 JK2102 C5776 JK4500 D5671 R2280 R2260 J K 2 1 0 2 J K 4 5 0 0 S2130 R2315 R2339 Q 4 7 0 0 R4740 C8504...
  • Page 50 TC-L32U3 A-BOARD (BOTTOM COMPONENT SIDE) TNPH0904 JK2102 C4731 J K 2 1 0 2 C4728 C4761 R2780 JK4500 D2753 TP2786 R2778 R2777 I C 4 7 0 2 JK8502 R2206 R2211 R2106 C2174 R8038 C2173 R2239 TP4728 R2164 R8545 C2175...

  • Page 51: Ka-Board

    TC-L32U3 12.2. KA-BOARD KA-BOARD (TOP COMPONENT SIDE) TNPA5378 R M 2 8 0 0 A A A C KA10 A B A D C2801 R2825 R2827 R2826 R2828 C2802 R2817 R2800 S U F F I X . RM2800A RM2800...

  • Page 52: P-Board

    TC-L32U3 12.3. P-BOARD P-BOARD (TOP COMPONENT SIDE) TNPA5361 Parts Location Ref.No Location Ref.No Location Ref.No Location Ref.No Location D7101 D7205 D7304 D7505 D7102 D7206 D7310 D7506 D7103 D7301 D7313 D7802 D7203 D7302 D7315 D7803 D7204 D7303 D7503...
  • Page 53 TC-L32U3 P-BOARD (BOTTOM COMPONENT SIDE) TNPA5361 Parts Location Ref.No Location Ref.No Location Ref.No Location Ref.No Location IC7201 D7101 D7308 D7802 IC7301 D7102 D7309 D7803 IC7501 D7103 D7310 D7804 IC7801 D7201 D7311 D7805 D7202 D7312 D7806 D7203 D7313 D7807 D7204 D7314...

  • Page 54: Exploded View And Replacement Parts List

    TC-L32U3 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 55: Electrical Replacement Parts List

    TC-L32U3 13.2.2. Electrical Replacement Parts List Note: All part will be supplied by PAVCKM. Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C2329 F1H0J1050013 C 1UF , 6.3V C2332 F1K1E106A136 C 10UF , 25V...
  • Page 56 TC-L32U3 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C4184 F1J1C475A170 C 4.7UF , 16V C5779 F1G1H1020008 C 1000PF , 50V C4185 F1J1C475A170 C 4.7UF , 16V C5780 F1G1H1020008 C 1000PF , 50V C4186 F1J1C475A170 C 4.7UF , 16V...
  • Page 57 TC-L32U3 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C7838 F1B3J150A013 C 15PF , 6.3kV C8070 F1G1H1020008 C 1000PF , 50V C7839 F1B3J150A013 C 15PF , 6.3kV C8071 F1G1C104A077 C 0.1UF , 16V C7840 F1B3J150A013 C 15PF , 6.3kV...
  • Page 58 TC-L32U3 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C8501 F1G1C104A077 C 0.1UF , 16V D5765 B0HCMM000014 DIODE C8503 F1G1C104A077 C 0.1UF , 16V D7101 D4EAC6210002 VARISTOR C8504 F1G1C104A077 C 0.1UF , 16V...
  • Page 59 TC-L32U3 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks IC8502 TVRR984AA ROM IC (C3FBQD000027) L8314 G1CR18JA0020 INDUCTOR IC8503 TVRR991 IC (C3EBKY000019) L8315 J0JCC0000269 COIL IC8850 C0DBGYY00930 IC L8500 J0JYC0000322 COIL...
  • Page 60 TC-L32U3 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R2118 D0GA470JA023 C 47OHM ,J, 1/16W R4126 D0GA100JA023 C 10OHM ,J, 1/16W R2119 D0GA470JA023 C 47OHM ,J, 1/16W R4128 D0GA100JA023 C 10OHM ,J, 1/16W...
  • Page 61 TC-L32U3 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R4762 EXB2HV220JV 22OHM ,J, 1/16W R5706 D0GDR00J0004 C 0OHM ,J, 1/16W R4775 D0GBR00J0004 C 0OHM ,J, 1/8W R5707 D0GB390JA041 C 39OHM ,J, 1/10W...
  • Page 62 TC-L32U3 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R7336 ERJ12YJ474U 470KOHM ,J, 1/2W R8007 D1BA1020A014 C 1OHM ,J 1/16W R7338 ERG2SJ330P F 33OHM ,J, 2W R8008 D0GA102JA023 C 1KOHM ,J, 1/16W...
  • Page 63 TC-L32U3 Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R8334 D0GA471JA023 C 470OHM ,J, 1/6W D0GDR00J0004 CHIP RESISTOR R8335 D0GDR00J0004 C 0OHM ,J, 1/16W D0GDR00J0004 CHIP RESISTOR R8336 D0GA220JA023 C 22OHM ,J, 1/16W...
  • Page 64 Model No. : TC-L32U3 Parts Location...
  • Page 65 Model No. : TC-L32U3 Packing Exploded View 1...
  • Page 66 Model No. : TC-L32U3 Packing Exploded View 2...
  • Page 67 Model No. : TC-L32U3 Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks K2CB2YY00040 AC CORD K5D502BNA005 FUSE L0AA14B00008 SPEAKER N2QAYB000570 REMOTE CONTROL TBL5ZX0084 PEDESTAL ASSY TBL5ZX0085 STAND MOUNTING ASSY TBM4GC599 MODEL NAME PLATE TBX4GA01501A CONTROL BUTTON...

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