Panasonic TH-L32S25A Service Manual
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Pravin Mevada

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
Collection By Pravin Mevada
Model No.
Chassis:
Destination:
PAGE
5.2.1. How to access --------------------------------------- 10
5.2.2. Display of SOS History ---------------------------- 10
5.2.3. POWER ON TIME/COUNT ----------------------- 10
5.2.4. Exit ------------------------------------------------------ 10
5.3. Service Mode Adjustment------------------------------ 11
5.3.1. Self Check Mode ------------------------------------ 11
5.3.2. Hotel Mode Adjustment ---------------------------- 11
5.3.3. 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
6.1.4. Check Point ------------------------------------------- 12
6.2. Power LED Blinking timing chart --------------------- 13
6.3. No Power--------------------------------------------------- 13
7.1. AC Cord Dressing---------------------------------------- 14
ORDER NO. MTV1001873CE
TH-L32S25A
LA02
AUSTRALIA
© Panasonic Corporation 2010. Unauthorized
copying and distribution is a violation of law.
LCD TV
PAGE

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Summary of Contents for Panasonic TH-L32S25A

  • Page 1: Table Of Contents

    6.3. No Power--------------------------------------------------- 13 5.1.2. How to exit---------------------------------------------- 9 7 Disassembly and Assembly Instructions--------------- 14 5.2. SRV-TOOL -------------------------------------------------10 7.1. AC Cord Dressing---------------------------------------- 14 © Panasonic Corporation 2010. Unauthorized copying and distribution is a violation of law. Collection By Pravin Mevada...
  • Page 2 TH-L32S25A 7.2. AC Cord Installation ------------------------------------- 15 13.1. Exploded View and Mechanical Replacement 7.3. VESA Rail Installation----------------------------------- 16 Parts List --------------------------------------------------- 65 7.4. VESA Metal Assembly ---------------------------------- 17 13.2. Electrical Replacement Parts List ------------------- 65 7.5. Control Panel Assembly-------------------------------- 18 13.2.1.
  • Page 3: Safety Precautions

    TH-L32S25A 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

    TH-L32S25A 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)

    TH-L32S25A 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

    TH-L32S25A 3 Service Navigation 3.1. Service Hint Board Name Main Device A Board AVSW, TUN, OFDM, ADV, P-AVC, GENX, EEP, TEMP P Board Power Supply for IPS-α V Board Remote, LED, Luminunce Sensor K Board KEY, Power SW XH Board...
  • Page 7: Applicable Signals

    TH-L32S25A 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

    TH-L32S25A 4 Specifications Power Power Rating AC 220 - 240 V, 50 / 60 Hz 0.56 A Normal (Home) Mode 69 W Standby Condition 0.30 W Display panel Aspect Ratio 16:9 Visible screen size 80 cm (diagonal) 698 mm (W) × 393 mm (H) 2,073,600 (1,920 (W) ×...
  • Page 9: Service Mode

    TH-L32S25A 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

    TH-L32S25A 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

    TH-L32S25A 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

    TH-L32S25A 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

    TH-L32S25A 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

    TH-L32S25A 7 Disassembly and Assembly Instructions 7.1. AC Cord Dressing TREATMENT AC CORD.
  • Page 15: Ac Cord Installation

    TH-L32S25A 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: Vesa Rail Installation

    TH-L32S25A 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: Vesa Metal Assembly

    TH-L32S25A 7.4. VESA Metal Assembly 1. Put VESA METAL TOP AT L & R on the METAL SUPPOUT. 2. Fix them with SCREW.
  • Page 18: Control Panel Assembly

    TH-L32S25A 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: Sp Installation

    TH-L32S25A 7.6. 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 20: Lcd Panel Installation

    TH-L32S25A 7.7. LCD Panel Installation Put LCD PANEL on the CABINET.
  • Page 21: Led Panel Installation & Fitting

    TH-L32S25A 7.8. 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 22: Lcd Mounting Installation

    TH-L32S25A 7.9. 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 23: Lcd Mounting Installation

    TH-L32S25A 7.10. LCD Mounting Installation 2 1. METAL BRACKET TOP-L on the LCD PANEL. 2. Fix them with screw.
  • Page 24: Lcd Mounting Installation

    TH-L32S25A 7.11. LCD Mounting Installation 3 1. Put LCD CORNER MTG & METAL BRACKET-LCD-SIDE on the LCD PANEL. 2. Fix them with screw.
  • Page 25: Metal Bracket Installation

    TH-L32S25A 7.12. Metal Bracket Installation 1. Put Metal Bracket Top R on the LCD PANEL. 2. Fix them with SCREW. 3. Insert the CLAMPER.
  • Page 26: Emi Spec (Lvds) (1)

    TH-L32S25A 7.13. EMI Spec (LVDS) (1) +PET Tape Stick the ALT...
  • Page 27: Pcb And Clamper Assembly

    TH-L32S25A 7.14. 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 28: Pb Mtg Installation

    TH-L32S25A 7.15. PB MTG Installation 1. Put METAL BRACKET on the LCD PANEL. 2. Fix them with SCREW.
  • Page 29: Back Cover Assembly (1)

    TH-L32S25A 7.16. Back Cover Assembly (1) 1. Put VESA METAL(BC) on the BACK COVER. 2. Fix them with SCREWS.
  • Page 30: Stand Mtg Assembly

    TH-L32S25A 7.17. 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 31: Measurements And Adjustments

    TH-L32S25A 8 Measurements and Adjustments 8.1. Voltage chart of A-board Set A-Board to a dummy set and check the satisfaction with the specified voltage as following table. Power Supply Name Measurement Point Specification (V) SUB3.3V TP5503 3.21V - 3.45V 3.33 ok SUB1.5V...
  • Page 32: Picture Level Adjustment (Rf)

    TH-L32S25A 8.4. Picture level adjustment (RF) Instrument Name Remarks 1. REMOTE TRANSMITTER 2. Ex. Signal (Sprit color bar) Adjustment or Inspection Procedure Remarks <procedure> 1. Receive the Sprit color bar. (Screen mode: ZOOM or FULL Picture mode: DYNAMIC AI: OFF AI Picture: OFF) *BACK LIGHT +30 <Inspection>...
  • Page 33: Block Diagram

    TH-L32S25A 9 Block Diagram 9.1. Main Block Diagram A-BOARD DIGITAL SIGNAL PROCESSOR CLOCK DDR3 TS Parallel IFD_OUT OFDM USB1 TUNER (A Chip) (D Chip) EEPROM SIF_OUT USB DATA USB2 (SIDE) SD CARD DATA SD CARD SD I/F SLOT TMDS DATA...
  • Page 34: Wiring Connection Diagram

    TH-L32S25A 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 A09 - P2 No.2 A10 - K02 No.3 A02 - V10...
  • Page 35: Schematic Diagram

    TH-L32S25A 11 Schematic Diagram 11.1. Schematic Diagram Notes...
  • Page 36: A-Board (1/20) Schematic Diagram

    TH-L32S25A 11.2. A-Board (1/20) Schematic Diagram...
  • Page 37: A-Board (2/20) Schematic Diagram

    TH-L32S25A 11.3. A-Board (2/20) Schematic Diagram...
  • Page 38: A-Board (3/20) Schematic Diagram

    TH-L32S25A 11.4. A-Board (3/20) Schematic Diagram...
  • Page 39: A-Board (4/20) Schematic Diagram

    TH-L32S25A 11.5. A-Board (4/20) Schematic Diagram...
  • Page 40: A-Board (5/20) Schematic Diagram

    TH-L32S25A 11.6. A-Board (5/20) Schematic Diagram...
  • Page 41: A-Board (6/20) Schematic Diagram

    TH-L32S25A 11.7. A-Board (6/20) Schematic Diagram...
  • Page 42: A-Board (7/20) Schematic Diagram

    TH-L32S25A 11.8. A-Board (7/20) Schematic Diagram...
  • Page 43: A-Board (8/20) Schematic Diagram

    TH-L32S25A 11.9. A-Board (8/20) Schematic Diagram...
  • Page 44: A-Board (9/20) Schematic Diagram

    TH-L32S25A 11.10. A-Board (9/20) Schematic Diagram...
  • Page 45: A-Board (10/20) Schematic Diagram

    TH-L32S25A 11.11. A-Board (10/20) Schematic Diagram...
  • Page 46: A-Board (11/20) Schematic Diagram

    TH-L32S25A 11.12. A-Board (11/20) Schematic Diagram...
  • Page 47: A-Board (12/20) Schematic Diagram

    TH-L32S25A 11.13. A-Board (12/20) Schematic Diagram...
  • Page 48: A-Board (13/20) Schematic Diagram

    TH-L32S25A 11.14. A-Board (13/20) Schematic Diagram...
  • Page 49: A-Board (14/20) Schematic Diagram

    TH-L32S25A 11.15. A-Board (14/20) Schematic Diagram...
  • Page 50: A-Board (15/20) Schematic Diagram

    TH-L32S25A 11.16. A-Board (15/20) Schematic Diagram...
  • Page 51: A-Board (16/20) Schematic Diagram

    TH-L32S25A 11.17. A-Board (16/20) Schematic Diagram...
  • Page 52: A-Board (17/20) Schematic Diagram

    TH-L32S25A 11.18. A-Board (17/20) Schematic Diagram...
  • Page 53: A-Board (18/20) Schematic Diagram

    TH-L32S25A 11.19. A-Board (18/20) Schematic Diagram...
  • Page 54: A-Board (19/20) Schematic Diagram

    TH-L32S25A 11.20. A-Board (19/20) Schematic Diagram...
  • Page 55: A-Board (20/20) Schematic Diagram

    TH-L32S25A 11.21. A-Board (20/20) Schematic Diagram...
  • Page 56: K-Board Schematic Diagram

    TH-L32S25A 11.22. K-Board Schematic Diagram...
  • Page 57: P-Board Schematic Diagram

    TH-L32S25A 11.23. P-Board Schematic Diagram...
  • Page 58: V-Board Schematic Diagram

    TH-L32S25A 11.24. V-Board Schematic Diagram...
  • Page 59: Printed Circuit Board

    TH-L32S25A 12 Printed Circuit Board 12.1. A-Board A-Board (A Side) TNPH0850 Parts Location Ref. No Location Ref. No Location Ref. No Location Ref. No Location IC1100 IC5501 IC8362 D3300 IC1101 IC5603 IC8400 IC2950 IC5604 IC8401 IC2951 IC8100 IC8402 IC2952 IC8242...
  • Page 60: A-Board

    TH-L32S25A 12.2. A-Board A-Board (B Side) TNPH0850 Parts Location Ref. No Location Ref. No Location Ref. No Location Ref. No Location IC2301 IC8241 IC8900 D3300 IC5000 IC8700 IC8921 IC5280 IC8701 IC8240 IC8852...
  • Page 61: K-Board

    TH-L32S25A 12.3. K-Board K-Board (A Side) TNPA4901 Parts Location Ref. No Location D2600 12.4. K-Board K-Board (B Side) TNPA4901 12.5. V-Board V-Board (A Side) TNPA5134 12.6. V-Board V-Board (B Side) TNPA5134...
  • Page 62: P-Board

    TH-L32S25A 12.7. P-Board P-Board (A Side) TNPA5123...
  • Page 63 TH-L32S25A 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 64: P-Board

    TH-L32S25A 12.8. 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 D7204 D7403...
  • Page 65: Exploded View And Replacement Parts List

    TH-L32S25A 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 66 TH-L32S25A 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 C2950 F1J0J4750004 C 4.7UF , 6.3V C2951 F1J0J4750004 C 4.7UF , 6.3V...
  • Page 67 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C5050 F1H1A105A025 C 1UF , 10V C7307 F1J1H104A835 C 0.1UF , 50V C5201 F1J1E105A231 C 1UF , 25V C7308 F1J1H474A757 C 0.47UF , 50V...
  • Page 68 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C7870 F1B3J100A013 C 10PF , 6.3KV C8039 F1G1C104A116 C 0.1UF , 16V C7871 F1B3J100A013 C 10PF , 6.3KV C8040 F1G1C104A116 C 0.1UF , 16V C7872 F1B3J100A013 C 10PF , 6.3KV...
  • Page 69 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks C8122 F1G1C104A116 C 0.1UF , 16V C8282 F1G1C104A116 C 0.1UF , 16V C8123 F1G1C104A116 C 0.1UF , 16V C8283 F1G1A105A047 C 1UF , 10V C8124 F1G1C103A116 C 0.1UF , 16V...
  • Page 70 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks D2776 DZ2J062M0L DIODE D7808 B0ACCJ000048 DIODE D2777 DZ2J062M0L DIODE D7811 B0ACCJ000048 DIODE D2778 DZ2J062M0L DIODE D7812 DZ2J047M0L DIODE D2779 DZ2J062M0L DIODE...
  • Page 71 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks L2301 J0JHC0000042 COIL L8018 J0JHC0000045 COIL L2303 G1C220MA0416 COIL L8019 J0JHC0000045 COIL L2304 G1C220MA0416 COIL L8020 J0JCC0000287 COIL L2305 G1C220MA0416 COIL...
  • Page 72 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R0910 ERJ2GEJ103X F 10KOHM ,J, 1/10W R2310 ERJ2GEJ103X F 10KOHM ,J, 1/10W R0940 D0GA680JA015 68OHM ,J, 1/10W R2331 D0GA473JA015 C 47KOHM ,J, 1/10W...
  • Page 73 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R3174 ERJ2GEJ221X 220OHM ,J, 1/10W R4739 ERJ2GEJ220X F 22OHM ,J, 1/10W R3181 ERJ6ENF75R0 M 75OHM, 1/10W R4740 D0GA680JA015 68OHM ,J, 1/10W...
  • Page 74 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R5506 D1BB2101A087 C 2.1KOHM ,J, 1/10W R7402 ERJ12YJ474U 470KOHM ,J, 1/2W R5507 D1BB1101A055 C 1.1KOHM ,J, 1/10W R7403 ERDS1TJ3R3 C 3.3OHM,J, 1/2W...
  • Page 75 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R7832 D0GD102JA017 F 1KOHM ,J, 1/10W R8283 D1BA1001A014 C 1KOHM , 1/10W R7833 D0GD101JA017 F 100OHM ,J, 1/10W R8284 D1BA1001A014 C 1KOHM , 1/10W...
  • Page 76 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks R8703 D0GA560JA015 C 56OHM ,J, 1/10W R8877 D0GA330JA015 C 33KOHM ,J, 1/10W R8704 D0GA560JA015 C 56OHM ,J, 1/10W R8878 ERJ2GEJ103X F 10KOHM ,J, 1/10W...
  • Page 77 TH-L32S25A Safety Ref. Part No. Part Name & Description Remarks K1KA16AA0658 CONNECTOR K1KY02BA0257 CONNECTOR K1KY02BA0257 CONNECTOR K1KY02BA0257 CONNECTOR K1KY02BA0257 CONNECTOR PA2750 K5H4022A0031 FUSE PA7501 B1ZAZ0000016 TRANSISTOR PC7301 B3PAA0000363 PHOTO COUPLER PC7401 B3PAA0000363 PHOTO COUPLER PC7701 B3PAA0000363 PHOTO COUPLER RL7101 K6B1AYY00060 RELAY...
  • Page 78 Model No. : TH-L32S25A Parts Location...
  • Page 79 Model No. : TH-L32S25A Packing Exploded View 1...
  • Page 80 Model No. : TH-L32S25A Packing Exploded View 2...
  • Page 81 Model No. : TH-L32S25A Parts List Ref. Safety Part No. Part Name & Description Q'ty Remarks K1PY51Y00035 CONNECTOR K2CJ2YY00032 AC CORD L0AA14B00006 SPEAKER UNIT L5EDD8T00017 LCD PANEL N2QAYB000496 TRANSMITTER REMOTE CONTROL TBL4GA0037 PEDESTAL ASS'Y TBL4GX0005 STAND MOUNTING ASSY 32" TBM4GC429...

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