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Panasonic TH-47LFX6U Service Manual

Full hd lcd display
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FULL HD LCD Display
TH-47LFX6U
Model No.
TH-47LFX6W
LA44 Chassis
© Panasonic Corporation 2013
Unauthorized copying and distribution is a violation
of law.
ORDER NO.ITD1306027CE
B32 Canada: B61

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Summary of Contents for Panasonic TH-47LFX6U

  • Page 1 ORDER NO.ITD1306027CE B32 Canada: B61 FULL HD LCD Display TH-47LFX6U Model No. TH-47LFX6W LA44 Chassis © Panasonic Corporation 2013 Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions -----------------------------------------------3 1.1. General Guidelines ----------------------------------------3 1.2. Leakage Current Check (for TH-47LFX6U) ---------3 1.3. Touch-Current Check (for TH-47LFX6W) ------------4 2 Warning --------------------------------------------------------------5 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices ----------5 2.2.

  • Page 3: Safety Precautions

    6. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards. 1.2. Leakage Current Check (for TH-47LFX6U) 1.2.1. Leakage Current Cold Check 1. Unplug the AC cord and connect a jumper between the two prongs on the plug.

  • Page 4: Touch-Current Check (For Th-47Lfx6W)

    TH-47LFX6U/TH-47LFX6W 1.3. Touch-Current Check (for TH-47LFX6W) 1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. 2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1.

  • Page 5: Warning

    TH-47LFX6U/TH-47LFX6W 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 6: About Lead Free Solder (Pbf)

    TH-47LFX6U/TH-47LFX6W 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 7: Precautions For Installation

    TH-47LFX6U/TH-47LFX6W 2.3. Precautions for Installation...
  • Page 8 TH-47LFX6U/TH-47LFX6W...

  • Page 9: Service Navigation

    TH-47LFX6U/TH-47LFX6W 3 Service Navigation 3.1. Service Hint Board Name Function P-Board Power supply Non serviceable. P-Board should be exchanged for service. A-Board Digital Signal Processor Non serviceable. A-Board should be exchanged for service. V1-Board Remote receiver, Power LED, C.A.T.S. sensor Non serviceable.

  • Page 10: Applicable Signals

    TH-47LFX6U/TH-47LFX6W 3.2. Applicable signals...

  • Page 11: Specifications

    TH-47LFX6U/TH-47LFX6W 4 Specifications Power Source (U) 110 - 127 V AC, 50/60Hz Power Source (W) 220 - 240 V AC, 50/60Hz Power Consumption Power on 370 W Power off condition 0.3 W Stand-by condition 0.5 W Outdoor mode On: 41 W...

  • Page 12: Service Mode

    TH-47LFX6U/TH-47LFX6W 5 Service Mode 5.1. CAT (Computer Aided Test) mode How to access the CAT mode Method A Main unit + remote control operation 1. Remove the AV Cover Top Assy, in order to operate the button of the main unit.
  • Page 13 TH-47LFX6U/TH-47LFX6W 5.1.2. CD mode Select the CD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button on the remote control more than 3 seconds. Memory data change To exit the CD mode, press the R button on the remote control.
  • Page 14 TH-47LFX6U/TH-47LFX6W 5.1.3. SD mode Note : In SD mode, it is posible to display the detection value of each temperature sensor or wind velocity sensor. Select the SD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button on the remote control.
  • Page 15 TH-47LFX6U/TH-47LFX6W 5.1.5. NW mode Note : To use the network function, set each "Network Setup" setting and make sure to set the "Control I/F Select" to "LAN". Select the NW mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button on the remote control.
  • Page 16 TH-47LFX6U/TH-47LFX6W 5.1.7. FT mode Note : In FT mode, It is possible to check whether FAN and air filter are normal. 1. Select the FT mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute but- ton on the remote control more than 3 seconds.

  • Page 17: Iic Mode Structure (Following Items Value Is Sample Data)

    TH-47LFX6U/TH-47LFX6W 5.2. IIC mode structure (following items value is sample data)
  • Page 18 TH-47LFX6U/TH-47LFX6W 5.2.1. Procedure for performing WS Adj. 1. Select the IIC mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action but- ton on the remote control. 2. Select the WS Adj. by Up/Down button on the remote control.

  • Page 19: Troubleshooting Guide

    TH-47LFX6U/TH-47LFX6W 6 Troubleshooting Guide 6.1. Self Check 6.1.1. Display Indication 1. Self-check is used to automatically check the bus line controlled circuit of the LCD display. 2. To get into the Self-check mode, press the volume down button on the right side of the unit, at the same time pressing the OFF-TIMER button on the remote control, and the screen will show.
  • Page 20 TH-47LFX6U/TH-47LFX6W 6.1.3. LCD Panel test mode • Purpose: To find the possible failure point where in LCD Panel or Printed Circuit Board when the abnormal picture is displayed. • How to Enter and Exit: There are two procedures as following A and B.

  • Page 21: No Power

    TH-47LFX6U/TH-47LFX6W 6.2. No Power First check point There are following 3 states of No Power indication by power LED. 1. No lit. 2. Green is lit then turns red blinking a few seconds later. 3. Only red is lit. 6.3.

  • Page 22: Disassembly And Assembly Instructions

    TH-47LFX6U/TH-47LFX6W 7 Disassembly and Assembly Instructions 7.1. SERVICE INSTRUCTIONS...

  • Page 23: Pcb Layout

    TH-47LFX6U/TH-47LFX6W 7.2. PCB Layout...

  • Page 24: Preparation

    TH-47LFX6U/TH-47LFX6W 7.3. Preparation 7.5. Rear Plate Removal Please pull soft cloth etc. not to damage a screen and please In this section, it is the method of removing in the state where the Fan Cover BTM C Assy, the Fan Cover BTM B turn the front of a main part down and lay it down.
  • Page 25 TH-47LFX6U/TH-47LFX6W 3. Remove the aluminum tapes (2 places). Attentions when attaching the Rear Plate • Tighten other screws after tightening the screws of datum of four corners in the previous figure first, when tightening a screw. • When attaching the Rear Plate Assy, please be sure to...
  • Page 26 TH-47LFX6U/TH-47LFX6W Attention when attaching the AV Cover Bottom Assy Attention when attaching the AC Cord and the AV Cover • Stick the aluminum tapes (2 places) shown in the figure Top Assy • Please fit the AC Cord in the hollow portion in the AV Cover below before attaching the AV Cover Bottom Assy.

  • Page 27: Attachment Bracket Replacement

    TH-47LFX6U/TH-47LFX6W 7.6. Attachment Bracket Replace- 7.7. Fan Cover BTM B Assy and ment Fan Sponge Replacement 1. Remove the screws and then remove the Attachment 1. Remove the screws, and then remove the Fan Cover Bracket. BTM B Assy. 2. When replacing the Fan Sponge, turn over the Fan Cover BTM B Assy and replace the Fan Sponge for repaire.

  • Page 28: A-Board Replacement

    TH-47LFX6U/TH-47LFX6W 7.9. A-Board Replacement Attention when attaching the A-Board • When attaching the A-Board, the gasket (TEWB645) Attentions when replacing the A-Board attached to the AV Cover Bottom Assy is pressing down the • When you replace the A-Board, please execute "WS Adj." in metal fitting of A-Board certainly.

  • Page 29: P-Board Replacement

    TH-47LFX6U/TH-47LFX6W 7.10. P-Board Replacement 7.11. Key Button V2-Board Replacement 1. Remove the Rear Plate. (Refer to “7.5. Rear Plate Removal”) 1. Remove the Rear Plate. 2. Disconnect the connectors and remove the screws, and (Refer to “7.5. Rear Plate Removal”) then remove the P-Board.

  • Page 30: Temperature Sensor Board (Ts) And Wind Sensor Replacement

    TH-47LFX6U/TH-47LFX6W 7.12. Temperature Sensor Board Caution when replacing the Temperature Sensor Board (TS) and Wind Sensor (WSS) (TS) and Wind Sensor Replace- • When connecting the connector, check the number of con- nector and number of Wind Sensor and Temperature Sensor...

  • Page 31: Inlet Assy Replacement

    TH-47LFX6U/TH-47LFX6W 7.13. Inlet Assy Replacement 7.14. Fan Replacement 1. Remove the Rear Plate. 1. Remove the Rear Plate. (Refer to “7.5. Rear Plate Removal”) (Refer to “7.5. Rear Plate Removal”) 2. Disconnect the Connector and remove the screws and 2. Disconnect the fan joint connector and remove the Fixer AC Cord, and then remove the Inlet Assy.

  • Page 32: Dc Fan Replacement

    TH-47LFX6U/TH-47LFX6W 7.15. DC Fan Replacement 7.16. Front Frame Assy Replace- ment 1. Remove the Rear Plate. (Refer to “7.5. Rear Plate Removal”) 1. Remove the screws. 2. Disconnect the joint connector and remove the screws, 2. Lift quietly with the Attachment Bracket. The Front Frame and then remove the DC Fan.

  • Page 33: Rear Frame Assy Replacement

    Hinge, Fastener and Fastener Holder. 4. Lift and remove the Rear Frame Assy quietly. Panasonic Badge • The Panasonic Badge is enclosed by the Front Frame Assy for repair. When replacing the Front Frame Assy, please stick the Panasonic Badge on the position of the following figure.
  • Page 34 TH-47LFX6U/TH-47LFX6W 7.17.1. Gasket for rear frame Replacement Attention when attaching the Rear Frame Assy • When attaching the Rear Frame Assy, the gasket attached 1. Remove the Gasket for rear frame and then replace the to the Panel Holder Bottom Assy is in contact with the Rear Gasket for rear frame for repair.

  • Page 35: Rear Frame Assy Removal

    TH-47LFX6U/TH-47LFX6W 7.18. Rear Frame Assy Removal Attention when attaching the Rear Frame Assy • When attaching the Rear Frame Assy, the gasket attached In this section, the procedure of removing a rear frame effi- to the Panel Holder Bottom Assy is in contact with the Rear ciently for exchange of each part in the sections from 7.19...

  • Page 36: Panel Holder Top Assy Replacement

    TH-47LFX6U/TH-47LFX6W 7.19. Panel Holder Assy 4. Remove the screws and then remove the Panel Holder Top Assy quietly. Replacement Preparations • Please prepare two hard square lumber and spread soft cloth etc. on it. 1. Remove the Rear Plate. (Refer to “7.5. Rear Plate Removal”) 2.

  • Page 37: Panel Holder Bottom Assy Replacement

    TH-47LFX6U/TH-47LFX6W Caution when attaching to the Front Frame Assy 4. Disconnect the connector and remove the screws, and • Have the (A) part and the (B) part of the previous figure, and then remove the Panel Holder Bottom Assy quietly.

  • Page 38: Panel Holder L/R Assy Removal

    TH-47LFX6U/TH-47LFX6W 7.21. Panel Holder Assy Panel Holder L A Assy and 7.21.1. Panel Holder L B Assy Removal Replace- ment 1. Remove the Rear Plate. (Refer to “7.5. Rear Plate Removal”) 1. Remove the screws of Panel Holder L Assy and then 2.

  • Page 39: V1-Board Replacement

    TH-47LFX6U/TH-47LFX6W Panel Holder Assy 7. Disconnect the connector and remove the screws, and 7.21.3. then remove the V1-Board. Replacement 1. Remove the Panel Holder R A Assy. (Refer to “7.21.1. Panel Holder R A Assy Replacement”) 2. Disconnect the connector and remove the screws, and then remove the V1-Board and LED Panel Assy from the Panel Holder R B Assy.
  • Page 40 TH-47LFX6U/TH-47LFX6W 8. Remove the screws fixing the A-Board. 10. Disconnect the connector and remove the screws, and then remove the Chassis Base from the LCD Panel. Attention when replacing the LCD Panel •Attentions at the time of attaching the Fan Joint Con- nector •...
  • Page 41 TH-47LFX6U/TH-47LFX6W •Caution when replacing the Temperature Sensor Board (TS5) • Please attach the Temperature Sensor Board (TS5) after attaching the Sensor Holder to the LCD panel.
  • Page 42 TH-47LFX6U/TH-47LFX6W...

  • Page 43: Block Diagram

    TH-47LFX6U/TH-47LFX6W 8 Block Diagram 8.1. Diagram Notes...

  • Page 44: Main Block Diagram

    TH-47LFX6U/TH-47LFX6W 8.2. Main Block Diagram A DIGITAL SIGNAL PROCESSOR MAIN CPU HDBase T LAN DATA Receiver HDBase-T/ Ether +3.3V D3.3V UART SW2 LAN TERMINAL MII DATA +1.2V D1.2V MUTE NETWORK STB3.3V CONTROL LAN3.3V PWR15V AUDIO DCDC R+/- EEPROM L+/- PROCESSOR...

  • Page 45: Block (1 Of 3) Diagram

    TH-47LFX6U/TH-47LFX6W 8.3. Block (1 of 3) Diagram JK3503 JK3504 JK4002 JK4004 PC/DVI DIGITAL SIGNAL PROCESSOR RS232C_IN DVI-D IN AUDIO IN HDMI IN1 (SEIRIAL IN) HDBase T LAN3.3V IC2401 FACTORY Receiver JK2401 HDMI BUS IC4705 TMDS DATA CLOCK DATA HDBase-T/ MICOM BUS...

  • Page 46: Block (2 Of 3) Diagram

    TH-47LFX6U/TH-47LFX6W 8.4. Block (2 of 3) Diagram JK4001 DIGITAL SIGNAL PROCESSOR VGA_5V PRE_AMP IC2001 IC4702 EEPROM AUDIO_MUTE IC4501 AUDIO OUT R/L MAIN CPU Q2051,52 Q4132 CLOCK X4004 GENARATION IC4714 EDID_WP 19.6608MHz PC_V_DET AUDIO PC/DVI R/L PROCESSOR IC4715 PC_H_DET Q2053 KEY_MUTE...

  • Page 47: Block (3 Of 3) Diagram

    TH-47LFX6U/TH-47LFX6W 8.5. Block (3 of 3) Diagram DIGITAL SIGNAL PROCESSOR AUDIO OUT L JK3501 AUDIO OUT R AUDIO OUT POWER ON/OFF MUTE IC2002 PWR5V STB5V_SW D3.3V TS1 - TS5 TEMP SENSOR Q2042 3V_TXD3 3V_RXD3 5V_I2C1 3V_I2C2 I2C_INT I2C_CONT FACTORY CF1450...
  • Page 48 TH-47LFX6U/TH-47LFX6W...

  • Page 49: Wiring Connection Diagram

    TH-47LFX6U/TH-47LFX6W 9 Wiring Connection Diagram...
  • Page 50 TH-47LFX6U/TH-47LFX6W...

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