Panasonic TX-50CX670E Service Manual
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Panasonic TX-50CX670E Service Manual

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TX-50CX670E
Model No.
TX-50CX680E
TX-50CXR700
LA59 Chassis
© Panasonic Corporation 2015.
Unauthorized copying and distribution is a violation
of law.
ORDER NO.PCZ1504080CE
LCD Television

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Summary of Contents for Panasonic TX-50CX670E

  • Page 1 ORDER NO.PCZ1504080CE LCD Television TX-50CX670E Model No. TX-50CX680E TX-50CXR700 LA59 Chassis © Panasonic Corporation 2015. 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. Touch-Current Check--------------------------------------3 2 Warning --------------------------------------------------------------4 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices ----------4 2.2. About lead free solder (PbF) ----------------------------5 3 Service Navigation------------------------------------------------6 3.1.

  • Page 3: Safety Precautions

    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

    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)

    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). That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.

  • Page 6: Service Navigation

    3 Service Navigation 3.1. PCB Layout Board Name Function A-Board Main P-Board Power Supply / Switch LDP-Board LED Driver K-Board IR/LED/CATS...

  • Page 7: Specifications

    DIGITAL AUDIO output PCM / Dolby Digital, Fibre optic Receiving systems / Band name Check the latest information on the available services at the following website. (English only) http://panasonic.net/viera/support DVB-C Digital cable services (MPEG2 and MPEG4-AVC(H.264)) DVB-T / T2 Digital terrestrial services (MPEG2 and MPEG4-AVC(H.264)) PAL B, G, H, I, SECAM B, G, SECAM L, L’...
  • Page 8 Operating conditions Temperature: 0 °C - 35 °C Humidity: 20 % - 80 % RH (non-condensing) Built-in wireless LAN Standard compliance and Frequency range* IEEE802.11a/n 5.180 GHz - 5.320 GHz, 5.500 GHz - 5.580 GHz, 5.660 GHz - 5.700 GHz (670E/680E) 5.15 GHz - 5.35 GHz, 5.47 GHz - 5.85 GHz (R700) IEEE802.11b/g/n 2.412 GHz - 2.472 GHz (670E/680E)

  • Page 9: Technical Descriptions

    3 seconds. TV will be forced to the factory shipment setting after this SELF CHECK. 5.1.3. Model and Keys: Model No. Keys One-to-One CI Plus DTCP-IP WIDEVINE Netflix HDCP2.2 (For USB Rec.) TX-50CX670E None TX-50CX680E None TX-50CXR700 None None...

  • Page 10: How To Connect And Disconnect For A16B Connector On A Board

    5.2. How to connect and disconnect for A16B connector on A board If the flexible cable is inserted at a slant, the tip of the cable may be damaged. In this case, the flexible cable should be replaced because a damaged tip causes connection failure, resulting in image defect.

  • Page 11: Cs Maintenance Menu

    6 CS Maintenance Menu 6.1. How to enter into CS Maintenance Menu 6.1.1. Purpose After exchange parts, check and adjust the contents of adjustment mode. While pressing [VOLUME ( - )] button of the main unit, press [ RED ] button of the remote control three times within 2 seconds. Note: CS Maintenance Menu can not be entered when 3D signal input.

  • Page 12: Edid Clock

    6.3. EDID Clock 1. Select [EDID CLK] in CS Maintenance Menu. 2. Press [OK] button or Cursor key [Right] on the remote control. Exit: Press the [Exit] button or the [Return] button on the remote control. 6.4. USB HDD Drive Check 1.

  • Page 13: System Information

    6.5. System Information 6.5.1. How to access 1. While pressing [MENU] button on the remote control. 2. To select [? Help] and then to select [System Information]. System Information SW version 3001-10000-abcde 3001 Peaks SW 10000 GenX Main abcde GenX Sub (optional) Status1 0c 8801-0003 0080-0000 Outer model ID...

  • Page 14: Hotel Mode

    6.6. Hotel mode 6.6.1. Purpose 6.6.4. Explain the Hotel mode setup menu Restrict a function for hotels. 6.6.2. Access command to the Hotel Item Function Hotel Mode Select hotel mode On/Off mode setup menu Initial INPUT Select input signal modes. In order to display the Hotel mode setup menu, Set the input, when each time power is switched please enter the following command (within 2 seconds).

  • Page 15: Data Copy By Usb Memory

    6.7. Data Copy by USB Memory Note: SD card can not be used for Data Copy. 6.7.1. Purpose (a) Board replacement (Copy the data when exchanging A-board): When exchanging A-board, the data in original A-board can be copied to USB Memory and then copy to new A-board. (b) Hotel (Copy the data when installing a number of units in hotel or any facility): When installing a number of units in hotel or any facility, the data in master TV can be copied to USB Memory and then copy to other TVs.
  • Page 16 6.7.3. Data copy from TV set to USB Memory 1. Turn on the TV set. 2. Insert USB Memory with a startup file (pwd file) to USB terminal. On-screen Display will be appeared according to the startup file automatically. 3. Input a following password for (a) or (b) by using remote control. (a) For Board replacement : 2770 (b) For Hotel : 4850 Data will be copied from TV set to USB Memory.
  • Page 17 6.7.4. Data copy from USB Memory to TV set 1. Turn on the TV set. 2. Insert USB Memory with Data to USB terminal. On-screen Display will be appeared according to the Data folder automatically. 3. Input a following password for (a) or (b) by using remote control. (a) For Board replacement : 2771 (b) For Hotel : 4851 Data will be copied from USB Memory to TV set.

  • Page 18: Troubleshooting Guide

    7 Troubleshooting Guide Use the self-check function to test the unit. 1. Checking the IIC bus lines 2. Power LED Blinking timing 7.1. Check of the IIC bus lines 7.1.1. How to access 7.1.1.1. Self-check indication only: Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [BLUE] button on the remote control for more than 3 seconds.
  • Page 19 7.1.3. Check Point Confirm the following parts if NG was displayed. DISPLAY Check Ref. No. Description Check Point H14TUN TU6704 TUNER A-BOARD H38FRC IC9000 A-BOARD H07TEMP IC2250 TEMP SENSOR A-BOARD H17LAN ETHERNET A-BOARD / LAN H00FE IC6800 DEMODULATOR A-BOARD H96ID A-BOARD H97ID2 A-BOARD...

  • Page 20: Power Led Blinking Timing Chart

    7.2. Power LED Blinking timing chart 1. Subject Information of LED Flashing timing chart. 2. Contents When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinks of the Power LED on the front panel of the unit. Blinking Times Contents Check point...

  • Page 21: Disassembly And Assembly Instructions

    8 Disassembly and Assembly Instructions 8.1. Disassembly Flow Chart for the Unit This is a disassembly chart. When assembling, perform this chart conversely.

  • Page 22: Disassembly Procedure For The Unit

    8.2. Disassembly Procedure for the Unit 8.2.2. Back Cover Lay down the unit so that the rear cover faces upward. 1. Remove the 17 screws (A). 8.2.1. Pedestal 2. Remove the 10 screws (B). 1. Remove the 4 screws. 3. Remove the Back Cover. 2.
  • Page 23 8.2.4. P-Board 6. Remove the P-Board Barrier. Caution: To remove P.C.B. wait 1 minute after power was off for discharge from electrolysis capacitors. 1. Remove the 7 screws. 2. Disconnect the connectors (P2 and P3). 3. Remove the P-Board. 8.2.5. LDP-Board Caution: To remove P.C.B.
  • Page 24 8.2.6. A-Board 5. Remove the 5 screws. 6. Remove the Side AV Bracket and the Bottom AV Bracket. 1. Remove the 1 screw. 7. Remove the 42 hooks. 2. Remove the 42 hooks. 8. Remove the A-Board from 4 Spacer for A-Heatsinks. 3.
  • Page 25 8.2.7. K-Board 8.2.8. Wi-Fi Dongle 1. Remove the 2 hooks (A). 1. Disconnect the Wi-Fi Cable. 2. Remove the LED Panel Assy. 2. Remove the 2 hooks (A). 3. Remove the 2 hooks (B). 4. Remove the Wi-Fi Dongle. 3. Remove the 1 hook (B). 4.
  • Page 26 8.2.9. VESA Metals 8.2.11. Speaker L/R 1. Remove the 4 screws. 1. Disconnect the 2 relay connectors. 2. Remove the 4 VESA Metals. 2. Remove the Speaker L/R. 3. Remove the 6 screws. 4. Remove the 2 SP Bracket Uppers and 2 SP Bracket Lowers.

  • Page 27: Specification Of Emi Countermeasures

    8.3. Specification of EMI countermeasures 8.3.1. Felt on Back Cover (1) 8.3.2. Felt on Back Cover (2)
  • Page 28 8.3.3. Felt on Back Cover (3) 8.3.4. Felt on Back Cover (4)
  • Page 29 8.3.5. Felt on Back Cover (5) 8.3.6. Felt on Bottom Back Cover...
  • Page 30 8.3.7. Felt on SP Bracket Lower 8.3.8. Felt on Bottom AV Bracket...
  • Page 31 8.3.9. Specification of sticking the Electromagnetic wave absorption sheet 8.3.10. Specification of sticking the Electromagnetic wave absorption sheet...
  • Page 32 8.3.11. Specification of heat rubber...
  • Page 33 8.3.12. Specification of sticking the Gasket 8.3.13. Specification of sticking the Gasket...
  • Page 34 8.3.14. Specification of sticking the Electromagnetic wave absorption sheet...
  • Page 35 8.3.15. Specification of sticking the Electromagnetic wave absorption sheet...
  • Page 36 8.3.16. Specification of HDMI Shield Case 8.3.17. Specification of sticking the PET-Tape...
  • Page 37 8.3.18. Specification of sticking the Heat rubber...

  • Page 38: Measurements And Adjustments

    9 Measurements and Adjustments 9.1. Voltage chart of P-board Power Supply Name Test point Spec TP7407, TP7408, TP7409 27.4 ± 2V TP7410, TP7411, TP7412 15.7 ± 0.6V TP7405, TP7420 5.1 ± 0.2V TP7201, TP7202 390V ± 15V *HOT 9.2. Voltage chart of A-board Power Supply Name Test point Spec...

  • Page 39: Block Diagram

    10 Block Diagram 10.1. Block Diagram (1/3) SP_R SP_L JK8605 JK8603 JK8601 JK8606 TO K10 JK8400 SERVICE ETHERNET WIFI USB3 USB1 USB2 CI SLOT JK8600 17,18 CN0100 51,52 2,3 5,6 SUB3.3V IF2_N,P 38,37 IC6800 10,11 14,15 26,27 30,31 DMD_1.2/1.1V AGC1 [C1AB00004028] DVB-T/T2/C DEM FEF_FLAG...

  • Page 40: Block Diagram (2/3)

    10.2. Block Diagram (2/3) 10.3. Block Diagram (3/3) TO A02A TO LDP3 LDP-BOARD K-BOARD LDP3 L7801 P-BOARD RM2800 LDP1 STBY 3.3V Anode1 IC7801 REMOTE 4 IN 15.6V Anode2 8 VDD Switching IC7800 7 Out DRIVER Anode3 LED DRIVER SUB3.3V DC/DC Q7801 R LED SN2800...

  • Page 41: Wiring Connection Diagram

    11 Wiring Connection Diagram 11.1. Wiring Diagram...

  • Page 42: Caution Statement

    11.2. Caution statement. Caution: Please confirm that all flexible cables are assembled correctly. Also make sure that they are locked in the connectors. Verify by giving the flexible cables a very slight pull. 11.3. Dressing Wire...

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