Panasonic TH-42LFP30W Service Manual

Panasonic TH-42LFP30W Service Manual

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TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Touch-Current Check ------------------------------------- 3
2 Warning -------------------------------------------------------------- 4
2.2. About lead free solder (PbF)---------------------------- 5
2.3. Precautions for Installation ------------------------------ 6
3 Service Navigation ----------------------------------------------- 8
3.2. Applicable signals ----------------------------------------- 9
4 Specifications ----------------------------------------------------11
5 Operating Instructions-----------------------------------------12
6 Service Mode -----------------------------------------------------14
6.1. Service Menu Function (1) -----------------------------14
6.2. Service Menu Function (2) -----------------------------15
6.3. Service Mode Function (1) -----------------------------16
6.4. Service Mode Function (2) -----------------------------17
7 Troubleshooting Guide ----------------------------------------18
Model No.
Manufacturing ID No. and Destination
TH-42/47LFP30WU : North and Latin America
TH-42/47LFP30WA : Oceania
TH-42/47LFP30W : Other
PAGE
8.1. SERVICE INSTRUCTIONS --------------------------- 19
8.2. Disassembly Procedure Chart ------------------------ 20
8.3. Removing back plate------------------------------------ 21
8.4. Layout of boards and parts ---------------------------- 22
8.5. How to replace the main board ----------------------- 22
8.6. How to replace the jack board ------------------------ 22
8.7. How to replace the power board --------------------- 23
8.8. How to replace Fan A ----------------------------------- 23
8.9. How to replace Fan B ----------------------------------- 23
8.10. Removing the cabinet back---------------------------- 24
8.11. Replacing the RC+LED board ------------------------ 24
8.12. Replacing the gaskets ---------------------------------- 24
8.13. Removing the cabinet front ---------------------------- 25
8.14. Replacing the Panasonic badge --------------------- 25
8.15. Replacing the LCD panel ------------------------------ 25
cable--------------------------------------------------------- 26
© Panasonic Corporation 2011
Unauthorized copying and distribution is a violation
of law.
Order Number MTV1111122CE
FULL HD LCD Display
TH-42LFP30W
TH-47LFP30W
PAGE

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Summary of Contents for Panasonic TH-42LFP30W

  • Page 1: Table Of Contents

    6 Service Mode -----------------------------------------------------14 8.13. Removing the cabinet front ---------------------------- 25 6.1. Service Menu Function (1) -----------------------------14 8.14. Replacing the Panasonic badge --------------------- 25 6.2. Service Menu Function (2) -----------------------------15 8.15. Replacing the LCD panel ------------------------------ 25 6.3. Service Mode Function (1) -----------------------------16 8.16.
  • Page 2 TH-42LFP30W / TH-47LFP30W 8.18. Removing the handles ---------------------------------- 26 8.19. Replacing humidity-control sheet -------------------- 27 8.20. Replacing the AV cover--------------------------------- 27 8.21. Replacing the pressure control cap ----------------- 27 8.22. Replacing the AV cover (bottom)--------------------- 28 8.23. Replacing the power cord ------------------------------ 28 8.24.
  • Page 3: Safety Precautions

    TH-42LFP30W / TH-47LFP30W 1 Safety Precautions 1.1. General Guidelines 1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials. 2. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the wires have been broken or disconnected, do not attempt to repair or re-wire the units.
  • Page 4: Warning

    TH-42LFP30W / TH-47LFP30W 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”...
  • Page 5: About Lead Free Solder (Pbf)

    TH-42LFP30W / TH-47LFP30W 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: Precautions For Installation

    TH-42LFP30W / TH-47LFP30W 2.3. Precautions for Installation...
  • Page 7 TH-42LFP30W / TH-47LFP30W...
  • Page 8: Service Navigation

    TH-42LFP30W / TH-47LFP30W 3 Service Navigation 3.1. Manufacturing ID No. and Destination Destination can be confirmed by Manufacturing ID No. indicated in the Model Name Plate as following figure. TH-42/47LFP30WU : North and Latin America TH-42/47LFP30WA : Oceania TH-42/47LFP30W : Other...
  • Page 9: Applicable Signals

    TH-42LFP30W / TH-47LFP30W 3.2. Applicable signals...
  • Page 10 TH-42LFP30W / TH-47LFP30W...
  • Page 11: Specifications

    TH-42LFP30W / TH-47LFP30W 4 Specifications TH-42LFP30W TH-47LFP30W For USA, Canada and For Europe and Asia For USA, Canada and For Europe and Asia Mexico Mexico Power Source 110 - 127 V AC, 50/60Hz 220 - 240 V AC, 50/60Hz 110 - 127 V AC, 50/60Hz...
  • Page 12: Operating Instructions

    TH-42LFP30W / TH-47LFP30W 5 Operating Instructions...
  • Page 13 TH-42LFP30W / TH-47LFP30W...
  • Page 14: Service Mode

    TH-42LFP30W / TH-47LFP30W 6 Service Mode 6.1. Service Menu Function (1)
  • Page 15: Service Menu Function (2)

    TH-42LFP30W / TH-47LFP30W 6.2. Service Menu Function (2)
  • Page 16: Service Mode Function (1)

    TH-42LFP30W / TH-47LFP30W 6.3. Service Mode Function (1)
  • Page 17: Service Mode Function (2)

    TH-42LFP30W / TH-47LFP30W 6.4. Service Mode Function (2)
  • Page 18: Troubleshooting Guide

    TH-42LFP30W / TH-47LFP30W 7 Troubleshooting Guide...
  • Page 19: Disassembly And Assembly Instructions

    TH-42LFP30W / TH-47LFP30W 8 Disassembly and Assembly Instructions 8.1. SERVICE INSTRUCTIONS...
  • Page 20: Disassembly Procedure Chart

    TH-42LFP30W / TH-47LFP30W 8.2. Disassembly Procedure Chart...
  • Page 21: Removing Back Plate

    TH-42LFP30W / TH-47LFP30W 8.3. Removing back plate remove the connector K39G for the jack board. 1. Turn to loosen the waterproof nut which secures the power cord onto the back plate and remove the nut. 2. Open the slit of the rubber packing which is located inside the waterproof nut to remove the rubber packing from the power cord.
  • Page 22: Layout Of Boards And Parts

    TH-42LFP30W / TH-47LFP30W 8.4. Layout of boards and parts 5. Replace the main board with the replacement board. This unit is built so the board is exposed when back plate is removed. Precautions for removing and fitting the main board protective cover and metal pin fitting.
  • Page 23: How To Replace The Power Board

    TH-42LFP30W / TH-47LFP30W 4. Replace the jack board with the replacement board. 8.8. How to replace Fan A 1. Detach the coupler KFN1 which is connected to the main board. 2. Remove the tape shown in the photo. 3. Remove 3 screws which hold the Fan A and gently detach the fan, then replace with the replacement fan.
  • Page 24: Removing The Cabinet Back

    TH-42LFP30W / TH-47LFP30W 8.10. Removing the cabinet back 3. The replacement parts for the RC+LED board are sup- plied as a unit including the metal holder fitting. Replace it 1. Detach the coupler K19H of the RC+LED board attached with the replacement ASSY RC+LED.
  • Page 25: Removing The Cabinet Front

    • The Panasonic badge is attached on the replacement cabi- net front, but the Panasonic badge itself can be also sup- plied as a single part. Take the following steps to replace the 4. Undo 6 screws to remove the chassis base. (SCR BIN badge 4X6: 4 screws;...
  • Page 26: Replacing The Main Switch Board

    TH-42LFP30W / TH-47LFP30W 5. Undo the screws (Model 47V: 1; Model 42V: 2), then remove the thermal conductivity plate from the side of the LCD panel. (SCR FLT 4X6) Precautions for removing and fitting the main switch board. • 6 specialty washers for ensuring dustproof and waterproof performance are fitted on 6 screws.
  • Page 27: Replacing Humidity-Control Sheet

    TH-42LFP30W / TH-47LFP30W 8.19. Replacing humidity-control 4. The humidity-control function begins when the surface sheet is peeled off the humidity-control sheet. sheet The humidity-control sheet is placed inside the back plate to control internal humidity. Ensure that the humidity-control sheet is replaced if the back plate is removed or renewed.
  • Page 28: Replacing The Av Cover (Bottom)

    TH-42LFP30W / TH-47LFP30W 4. Place the nut inside the AV cover and turn it using a 1. Remove 3 ferrite cores which are fitted on the power torque screwdriver (a special-purpose tool) to tighten it. board side of the power cord. Take care not to damage the power cord when cutting CV band with nippers, etc.
  • Page 29: Replacing The Waterproof Nuts

    TH-42LFP30W / TH-47LFP30W 6. Fit the waterproof nut (outer side) and rubber packing on • Ensure that there is no gap between waterproof nuts in to the power cord in the position shown in the diagram. this procedure. 8.24. Replacing the waterproof nuts 7.
  • Page 30: Hook And Tape For The Cables

    TH-42LFP30W / TH-47LFP30W 8.26. Hook and tape for the cables The position of hooks and tape to arrange the cables are as shown in the following drawing. 9, 10: Hook 20: Tape (The number represents the number of the detail drawing and...
  • Page 31: Block Diagram 1/2

    TH-42LFP30W / TH-47LFP30W 9 Block Diagram TH-42LFP30 / TH-47LFP30 Block Diagram 1/2 POWER BOARD COLD MAIN BOARD D650 3.3V_I/O KLVP 24VP LCD PANEL Q4001 PWM1 DCR_VBR 412V Q602 DCR_IN 400/3A OPC_EN OPC_EN PEL-TEST T6011 MAIN CHIP Q604 IC633 Q604 3.3V_I/O...
  • Page 32: Block (2 Of 2) Diagram

    TH-42LFP30W / TH-47LFP30W TH-42LFP30 / TH-47LFP30 Block Diagram 2/2 DDR SDRAM 5VSTB MCU_5V IC2005 IC5500 MAIN BOARD IC2008 IC5501 KSPR KSPL RXD0 TXD1 IC2007 Q7206 Main Chip MCU_5V 12V_PWR IC7200 IC2006 UART-SW TXD0 IC2009 RXD1 3.3VSTB MUTE PWM1 TO LCD PANEL...
  • Page 33: Wiring Connection Diagram

    TH-42LFP30W / TH-47LFP30W 10 Wiring Connection Diagram 10.1. Wiring Connection Diagram (1)
  • Page 34 TH-42LFP30W / TH-47LFP30W...
  • Page 35: Wiring Connection Diagram (2) (42 Inch)

    TH-42LFP30W / TH-47LFP30W 10.2. Wiring Connection Diagram (2) (42 inch)
  • Page 36: Wiring Connection Diagram (3) (42 Inch)

    TH-42LFP30W / TH-47LFP30W 10.3. Wiring Connection Diagram (3) (42 inch)
  • Page 37: Wiring Connection Diagram (4) (42 Inch)

    TH-42LFP30W / TH-47LFP30W 10.4. Wiring Connection Diagram (4) (42 inch)
  • Page 38: Wiring Connection Diagram (5) (47 Inch)

    TH-42LFP30W / TH-47LFP30W 10.5. Wiring Connection Diagram (5) (47 inch)
  • Page 39: Wiring Connection Diagram (6) (47 Inch)

    TH-42LFP30W / TH-47LFP30W 10.6. Wiring Connection Diagram (6) (47 inch)
  • Page 40: Wiring Connection Diagram (7) (47 Inch)

    TH-42LFP30W / TH-47LFP30W 10.7. Wiring Connection Diagram (7) (47 inch)
  • Page 41: Exploded View And Replacement Parts List

    TH-42LFP30W / TH-47LFP30W 11 Exploded View and Replacement Parts List 11.1. Exploded View and Mechanical Replacement Parts List 11.1.1. Exploded View 11.1.1.1. Cabinet front...
  • Page 42 TH-42LFP30W / TH-47LFP30W 11.1.1.2. Cabinet back...
  • Page 43 TH-42LFP30W / TH-47LFP30W 11.1.1.3. Rear prate (1)
  • Page 44 TH-42LFP30W / TH-47LFP30W 11.1.1.4. Rear prate (2)
  • Page 45 TH-42LFP30W / TH-47LFP30W 11.1.1.5. Screws for board (42”) (1)
  • Page 46 TH-42LFP30W / TH-47LFP30W 11.1.1.6. Screws for board (42”) (2)
  • Page 47 TH-42LFP30W / TH-47LFP30W 11.1.1.7. Screws for board (47”) (1)
  • Page 48 TH-42LFP30W / TH-47LFP30W 11.1.1.8. Screws for board (47”) (2)
  • Page 49 TH-42LFP30W / TH-47LFP30W 11.1.1.9. AC cord (42”)
  • Page 50 TH-42LFP30W / TH-47LFP30W 11.1.1.10. AC cord (47”)
  • Page 51 TH-42LFP30W / TH-47LFP30W 11.1.1.11. EMC parts...
  • Page 52 TH-42LFP30W / TH-47LFP30W 11.1.1.12. Hook and Tape...
  • Page 53 TH-42LFP30W / TH-47LFP30W 11.1.1.13. Packing...
  • Page 54: Mechanical Replacement Parts List (42 Inch)

    TH-42LFP30W / TH-47LFP30W 11.2. Mechanical Replacement Parts List (42 inch) Safety Ref. Part No. Part Name & Remarks Description Safety Ref. Part No. Part Name & Remarks T4111925207 SCREW PAN+SW+W Description T6103583976 CABINET FRONT T4111923807 SCREW PAN+SW+W ASSY 4X20 T6103569420...
  • Page 55 TH-42LFP30W / TH-47LFP30W Safety Ref. Part No. Part Name & Remarks Description T6103589664 SETUP GUIDE (UKURAINIAN) T6520036789 STANDARD Chap.10.3.3 WIRE ASSY (POWER KIN1 - LCD PANEL CN1) T6103575315 STANDARD WIRE Chap.10.4.9 (MAIN K72D JACK K10D) T6103575285 STANDARD WIRE Chap.10.4.9 (MAIN...
  • Page 56: Mechanical Replacement Parts List (47 Inch)

    TH-42LFP30W / TH-47LFP30W 11.3. Mechanical Replacement Parts List (47 inch) Safety Ref. Part No. Part Name & Remarks Description Safety Ref. Part No. Part Name & Remarks T4111925207 SCREW PAN+SW+W Description T6103590462 CABINET FRONT T4111923807 SCREW PAN+SW+W ASSY 4X20 T6103569420...
  • Page 57 TH-42LFP30W / TH-47LFP30W Safety Ref. Part No. Part Name & Remarks Description T6103565446 SETUP GUIDE (SWEDISH) T6103589664 SETUP GUIDE (UKURAINIAN) T6103569024 SETUP GUIDE (ARABIC) T6520036796 STANDARD Chap.10.6.3 WIRE ASSY (POWER KIN1 - LCD PANEL CN1) T6103575315 STANDARD WIRE Chap.10.7.9 (MAIN...
  • Page 58: Electrical Replacement Boards List (42 Inch)

    TH-42LFP30W / TH-47LFP30W 11.4. Electrical Replacement Boards list (42 inch) Note: All boards are Non serviceable. Safety Ref. Part No. Part Name & Remarks Description T6103584140 CIRCUIT BOARD (RC+LED) T6103593289 CIRCUIT BOARD (MAIN) T6103565200 CIRCUIT BOARD (JACK) T6103565217 CIRCUIT BOARD...

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