Panasonic TC-L32XM6H Service Manual
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Panasonic TC-L32XM6H Service Manual

32 inch class 720p lcd hdtv
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32 inch Class 720p LCD HDTV
TC-L32XM6H
Model No.
KM21 Chassis
© Panasonic Corporation 2013.
Unauthorized copying and distribution is a violation
of law.
ORDER NO.MTNC130336CE

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Summary of Contents for Panasonic TC-L32XM6H

  • Page 1 ORDER NO.MTNC130336CE 32 inch Class 720p LCD HDTV TC-L32XM6H Model No. KM21 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 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. PCB Layout --------------------------------------------------6 4 Specifications ------------------------------------------------------7 5 Service Mode -------------------------------------------------------8 5.1.

  • Page 3: Safety Precautions

    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

    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 K-Board IR/LED/AI P-Board Power supply/SW...

  • Page 7: Specifications

    4 Specifications Power source AC 110-127 V, 60 Hz Power consumption Rated power 58 W Standby power 0.25 W Display panel Panel TFT LCD Module with LED Backlight Visible screen size 32 inches (80 cm) (diagonal) 1,049,088 (1,366 (W) × 768 (H)) Display Resolution Speaker output 10 W (5 W + 5 W), 10 % THD...

  • Page 8: Service Mode

    5 Service Mode 5.1. How to enter into Service Mode 5.1.1. Purpose After exchange parts, check and adjust the contents of adjustment mode. While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds. 5.1.2.
  • Page 9 Contents of adjustment mode 5.1.4. • Value is shown as a hexadecimal number. • Preset value differs depending on models. • After entering the adjustment mode, take note of the value in each item before starting adjustment. Main item Sub item Sample Data Remark ADJUST...

  • Page 10: Srv-Tool

    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. This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory shipment setting].

  • Page 11: Hotel Mode

    5.4. Hotel mode Item Function 1. Purpose Hotel Mode Select hotel mode On/Off Restrict a function for hotels. Initial INPUT Select input signal modes. 2. Access command to the Hotel mode setup menu Set the input, when each time power is switched In order to display the Hotel mode setup menu: While pressing [VOLUME (-)] button of the main unit, Selection :...

  • Page 12: Data Copy By Usb Memory

    5.5. Data Copy by USB Memory Note: SD card can not be used for Data Copy. 5.5.1. 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 13 5.5.3. 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 14 5.5.4. 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 15: Troubleshooting Guide

    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 6.1.1.1. 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 16: Power Led Blinking Timing Chart

    6.2. 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 17: Disassembly And Assembly Instructions

    7 Disassembly and Assembly Instructions 7.1. Disassembly Flow Chart for the Unit This is a disassembly chart. When assembling, perform this chart conversely.

  • Page 18: Disassembly Procedure For The Unit

    7.2. Disassembly Procedure for the Unit 7.2.1. Pedestal 7.2.3. Key Button Bracket 1. Lay down the unit so that the rear cover faces upward. 1. Remove the 2 tabs. 2. Remove the 4 screws. 2. Remove the 1 screw. 3. Remove the pedestal. 3.
  • Page 19 7.2.5. A-Board 1. Remove the 2 screws. 2. Remove the 2 locking tabs. 3. Remove the Side AV bracket. 4. Remove the CH Mount Boss and Ground Spring. 5. Disconnect the connectors (A02, A10, A12 and A16). 6. Remove the A-Board. 7.2.6.
  • Page 20 7.2.8. Metal Bracket Bottom 7.2.10. K-Board 1. Remove the 4 screws. 1. Remove the 2 locking tabs. 2. Remove the Metal Bracket Bottom. 7.2.9. LCD MTG Side, Cabinet Assy and LCD Panel 1. Remove the 2 LCD MTG Side. 2. Remove the 2 locking tabs. 3.

  • Page 21: Measurements And Adjustments

    8 Measurements and Adjustments 8.1. Voltage chart of P-board Output Test point Specification 5.3V TP7501 5.3±0.10V TP7410/TP7411/TP7412 15.5±0.8V TP7511/TP7512 24±1.2V 8.2. Voltage chart of A-board Power Supply Name Measurement Point Specification PNL12V TP4097 12.1±0.8V SUB3.3V TP5400 3.32±0.165V SUB1.1V TP8101 1.14±0.07V SUB1.5V TP8100 1.52±0.05V...

  • Page 23: Block Diagram

    10 Block Diagram 10.1. Main Block Diagram MAIN SPEAKER(L) AUDIO_OUT AUDIO SUB3.3V SOUND_SOS SOUND_SOS_DET SOUND_SOS TU_1.8V SPEAKER(R) IFD_OUT TUNER (LED:9 TIMES) (LED:9 TIMES) SOUND18V PEAKS-sLD8 DDR_I/F DDR3 Y/PB/PR COMPONENT IN SUB_AI_3.3V ANALOG-ASIC SUB3.3V L/R IN SUB1.1V OVP DET NAND SUB1.5 NAND_I/F FLASH DIGITAL...

  • Page 24: Block (1/2) Diagram

    10.2. Block (1/2) Diagram JK3101 MAIN SW7402-7406 CONTROL PANEL KEY SW7401 POWER POWER SW IC7301 IC7502 STB5V POWER_ON POWER ON 5.8VS T7301B,Q7301 D7102 RECTIFIER +16V Q7502 D7502 +16V SOUND18V P15V DCDCIN CF7102 +16V Q7501 D7507,8 IC7501 PC7301 PHOTO ERROR COUPLER DETCT PC7300 PHOTO...

  • Page 25: Block (2/2) Diagram

    10.3. Block (2/2) Diagram SPEAKER_R SPEAKER_L D3006 JK8451 FACTORY JK4700 JK4701 DIGITAL USB1 MAIN MAIN AUDIO OUT HDMI1 HDMI2 RF IN CN0100 JK6750 IIC_0 IIC_2 UART IIC_2 IC6750 IC4900 TUNER SOUND18V AUDIO AMP IC5704 +1.8V SUB5V SUB3.3V X8300 25MHz IIC_0 IIC_0 IIC_2 IIC_2...

  • Page 27: Wiring Connection Diagram

    11 Wiring Connection Diagram 11.1. 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. 11.2. Dressing Wire...

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