Panasonic TH-L50BL6M Service Manual
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Panasonic TH-L50BL6M Service Manual

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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
4 Specifications ----------------------------------------------------- 7
5 Service Mode ------------------------------------------------------ 9
5.1. How to enter into Service Mode ----------------------- 9
5.1.1. Purpose ------------------------------------------------- 9
5.1.2. Key command ----------------------------------------- 9
5.1.3. How to exit---------------------------------------------- 9
5.1.4. Contents of adjustment mode --------------------- 9
5.2. SRV-TOOL ------------------------------------------------- 11
5.2.1. How to access ---------------------------------------- 11
Model No.
Chassis:
Destination:
PAGE
5.2.2. Display of SOS History ---------------------------- 11
5.2.3. POWER ON TIME/COUNT ----------------------- 11
5.2.4. Exit ------------------------------------------------------ 11
5.2.5. DRV Check - USBHDD Check------------------- 12
5.2.6. Hotel Mode-------------------------------------------- 12
6 Troubleshooting Guide --------------------------------------- 13
6.1. Check of the IIC bus lines------------------------------ 13
6.1.1. How to access --------------------------------------- 13
6.1.2. Self-check indication only: ------------------------ 13
shipment setting: ------------------------------------ 13
6.1.4. Exit ------------------------------------------------------ 13
6.1.5. Screen display --------------------------------------- 13
6.1.6. Check Point ------------------------------------------- 13
6.2. Power LED Blinking timing chart --------------------- 14
6.3. LCD Panel test mode ----------------------------------- 14
6.4. No Power--------------------------------------------------- 14
7.1. Speaker Installation ------------------------------------- 15
ORDER NO. MTV1309143CE
TH-L50BL6M
LA41
MIDDLE EAST
© Panasonic Corporation 2013.
LED TV
PAGE

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Summary of Contents for Panasonic TH-L50BL6M

  • Page 1: Table Of Contents

    5.1.4. Contents of adjustment mode --------------------- 9 7 Disassembly and Assembly Instructions--------------- 15 7.1. Speaker Installation ------------------------------------- 15 5.2. SRV-TOOL ------------------------------------------------- 11 5.2.1. How to access ---------------------------------------- 11 7.2. LCD Panel Fixing & Handling Method -------------- 16 © Panasonic Corporation 2013.
  • Page 2 TH-L50BL6M 7.3. Cabinet Assembly---------------------------------------- 17 7.4. Cabinet Fixing--------------------------------------------- 18 7.5. Metal Bracket Fitting 1 ---------------------------------- 19 7.6. Metal Bracket Fitting 2 ---------------------------------- 20 7.7. Metal Bracket Screw ------------------------------------ 21 7.8. PCB Screw------------------------------------------------- 22 7.9. Bottom Metal Installation ------------------------------- 23 7.10. Stand Metal Preparation-------------------------------- 24 7.11.

  • Page 3: Safety Precautions

    TH-L50BL6M 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-L50BL6M 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-L50BL6M 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-L50BL6M 3 Service Navigation 3.1. Service Hint Board Name Main Device Remarks A BOARD TUN, OFDM, ADV, LD4, STBY EEP Repairable P BOARD Power Supply Repairable GK BOARD Function SW for LGD panel Repairable K BOARD LED/RM/CATS Repairable LD BOARD...

  • Page 7: Specifications

    TH-L50BL6M 4 Specifications Power Source AC 110-240 V, 50 / 60 Hz Power Rating 144 W Standby power consumption 0.2 W Visible screen size (diagonal) 126 cm 1,920 (W)  1,080 (H) Display resolution Panel LED backlight Liquid Crystal Display Dimensions (W ...
  • Page 8 TH-L50BL6M Operating Conditions Temperature : 0°C - 40°C Humidity : 20 % - 80 % RH (non-condensing) Built-in wireless LAN Standard compliance and Frequency range*: IEEE802.11a/n 5.15 GHz - 5.35 GHz, 5.47 GHz - 5.85 GHz IEEE802.11b/g/n 2.40 GHz - 2.4835 GHz...

  • Page 9: Service Mode

    TH-L50BL6M 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.
  • Page 10 TH-L50BL6M Main item Sub item Sample Data OPTION Boot STBY-SET EMERGENCY CLK MODE CLOCK Y/C DELAY DYNAMIC OPT 1 00000000 OPT 2 11100110 OPT 3 00001001 OPT 4 00000000 EDID-CLK HIGH SRV-TOOL DRV CHECK DYNAMIC...

  • Page 11: Srv-Tool

    TH-L50BL6M 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 12: Drv Check - Usbhdd Check

    TH-L50BL6M 5.2.5. DRV Check - USBHDD Check 1. Select [DRV Check - USBHDD Check] in Service Mode. 2. Press [OK] button on the remote control for more than 3 seconds. 5.2.6. Hotel Mode 1. Purpose Restrict a function for hotels.

  • Page 13: Troubleshooting Guide

    TH-L50BL6M 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 6.1.2. 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 14: Power Led Blinking Timing Chart

    TH-L50BL6M 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 15: Disassembly And Assembly Instructions

    TH-L50BL6M 7 Disassembly and Assembly Instructions 7.1. Speaker Installation 1. Fix speaker bracket at cabinet and screw. 2. Stick sponge at speaker (left and right) and fix at speaker bracket. PART NO DESCRIPTION REMARK TMK4GG081 SPONGE TMK4GG093 SPONGE L0EYAA000026 SPEAKER UNIT...

  • Page 16: Lcd Panel Fixing & Handling Method

    TH-L50BL6M 7.2. LCD Panel Fixing & Handling Method 1. Place down the cabinet as shown below. 2. Fix LCD panel into the cabinet by taking below precautions. Other general precautions 1. Do not press panel surface to avoid blue spot on the panel display.

  • Page 17: Cabinet Assembly

    TH-L50BL6M 7.3. Cabinet Assembly 1. Stick felt at cabinet (Top bottom and left right). 2. Fix pcb at led panel and fix to cabinet. PART NO DESCRIPTION TXJA10TGUZ A10-K10 TKK5ZC50311 LED_PANEL FELT (T0.55  630  5-HB) MASK_SIDE_L_R TMK4GA295 TXFKY5Z0526...

  • Page 18: Cabinet Fixing

    TH-L50BL6M 7.4. Cabinet Fixing 1. Fix LCD panel into cabinet assembly. 2. Ensure cabinet rib fully fix at LCD panel.

  • Page 19: Metal Bracket Fitting

    TH-L50BL6M 7.5. Metal Bracket Fitting 1 1. Stick felt at panel. 2. Fix metal bracket side (L/R) at cabinet. 3. Fix barrier and LVDS at panel. 4. Stick heat metal at panel by take out double side tape separator. 5. Fix metal CH frame at panel and heat metal and screw.

  • Page 20: Metal Bracket Fitting

    TH-L50BL6M 7.6. Metal Bracket Fitting 2 1. Fix all metal frame at LCD panel. 2. Stick felt at bottom cover and fix at cabinet. 3. Take out separator at barrier and stick between heat metal and metal chassis frame. PART NO...

  • Page 21: Metal Bracket Screw

    TH-L50BL6M 7.7. Metal Bracket Screw 1. Fix screw at metal bracket. 2. Stick felt at LCD panel. 3. Fix felt at control panel PCB. 4. Fix PCB at key button bracket. PART NO DESCRIPTION REMARK TBX5ZA03201 KEY_BUTTON_BRACKET FELT(15  160  0.9) TMK4GA046 FELT(20 ...

  • Page 22: Pcb Screw

    TH-L50BL6M 7.8. PCB Screw 1. Fix ground spring at chassis mount boss and fix at a PCB. 2. Fix side av bracket. 3. Fix P-PCB and A-PCB at panel and screw. PART NO DESCRIPTION REMARK TES5ZA003-1 GROUND_SPRING (A) TKP5ZA29402 SIDE_AV_BRACKET...

  • Page 23: Bottom Metal Installation

    TH-L50BL6M 7.9. Bottom Metal Installation Stick felt at bottom bracket metal and fix at panel. PART NO DESCRIPTION REMARK THE4GJ001J SCREW (BTM MTG4) 7.5 ± 0.5 Kgf.cm TKZ5ZC50071 METAL_BRACKET_BOTTOM FELT (10  140  0.55) TMK4GA173 THEJ036J SCREW(A3/P4/L3/VESA4/KEY2/FRAME10/WIFI1) 6.0 ± 1 Kgf.cm...

  • Page 24: Stand Metal Preparation

    TH-L50BL6M 7.10. Stand Metal Preparation PART NO DESCRIPTION TBL5ZA34551 STAND METAL TQF4GA267 QR CODE LABEL XSS5 + 16FJK SCREW XYN4 + F12FJK SCREW TPE4GH100 PE BAG...

  • Page 25: Back Cover - Label & Screw

    TH-L50BL6M 7.11. Back Cover - Label & Screw 1. Stick side button label and model name plate at back cover 2. Fix back cover and wifi dongle and screw. 3. Stick sirim label at model name plate. Part No Description...

  • Page 26: Handling Spec

    TH-L50BL6M 7.12. Handling SPEC ■ Moving the LCD module The module should be handle by two people and hold on that top and bottom long side by both hands without module warping. Never handle the module with keeping horizontal position when moving the module in order to avoid internal damage and deformation.

  • Page 27: Measurements And Adjustments

    TH-L50BL6M 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 PANEL12V TP4000 / 4001 11.50V - 12.50V...

  • Page 28: Block Diagram

    TH-L50BL6M 9 Block Diagram 9.1. Main Block Diagram MAIN Paragon (MICON + VIDEO PROCESSOR+AUDIO PROCESSOR + STM) IFD_OUT AUDIO_OUT RF IN BOARD SPEAKER(L) TUNER AUDIO SOUND_SOS_DET SPEAKER(R) AUDIO TU_3.3V PROCESSOR ARC_OUT TU_1.8V DIGITAL SPDIF_OUT AUDIO ANALOG-ASIC SUB3.3V SUB1.2V [HDMI DECODER/AD...

  • Page 29: Detailed Block Diagram (1/2)

    TH-L50BL6M 9.2. Detailed Block Diagram (1/2) JK3101A JK6750 MAIN RF IN POWER H O T COLD C O L D IIC_2 X6750 24MHz IC6705 T7302 ON BOARD TUNER IC7503 Q7301.02 D7409 T7201 5.8V 5.8VS IC5704 POWER D7102 +1.8V RECTIFIER D7408...

  • Page 30: Detailed Block Diagram (2/2)

    TH-L50BL6M 9.3. Detailed Block Diagram (2/2) JK4703 JK4701 JK4702 HDMI2 HDMI3 HDMI1 MAIN IC8000 Paragon IC4900 [HDMI DECODER/AD (D Chip) (D Chip) AUDIO AMP (A Chip) R(+) SLEEPN R(-) IC8706 SUB5V AUDIO L(-) AUDIO +3.3V AVDDH+3.3V MUTEN L(+) PROCESSOR AMP-XRST SUB3.3V...

  • Page 31: Wiring Connection Diagram

    TH-L50BL6M 10 Wiring Connection Diagram 10.1. Wire Dressing 1 Fix all connector at pcb and dressing follow diagram. PART NO DESCRIPTION REMARK 60 mm  9 pcs T4FP1005J 0.54 PET TAPE (0.06*9) TEWF279 PET/AL TAPE (W10XL80) K1HY05YY0097 USB CABLE (410MM)

  • Page 32: Wire Dressing

    TH-L50BL6M 10.2. Wire Dressing 2...

  • Page 33: Schematic Diagram

    TH-L50BL6M 11 Schematic Diagram Model No. : TH-L50BL6M A-Board (1/12)
  • Page 34 Model No. : TH-L50BL6M A-Board (2/12)
  • Page 35 Model No. : TH-L50BL6M A-Board (3/12)
  • Page 36 Model No. : TH-L50BL6M A-Board (4/12)
  • Page 37 Model No. : TH-L50BL6M A-Board (5/12)
  • Page 38 Model No. : TH-L50BL6M A-Board (6/12)
  • Page 39 Model No. : TH-L50BL6M A-Board (7/12)
  • Page 40 Model No. : TH-L50BL6M A-Board (8/12)
  • Page 41 Model No. : TH-L50BL6M A-Board (9/12)
  • Page 42 Model No. : TH-L50BL6M A-Board (10/12)
  • Page 43 Model No. : TH-L50BL6M A-Board (11/12)
  • Page 44 Model No. : TH-L50BL6M A-Board (12/12)
  • Page 45 Model No. : TH-L50BL6M GK-Board...
  • Page 46 Model No. : TH-L50BL6M K-Board...
  • Page 47 Model No. : TH-L50BL6M LD-Board...
  • Page 48 Model No. : TH-L50BL6M P-Board (1/2)
  • Page 49 Model No. : TH-L50BL6M P-Board (2/2)

  • Page 50: Printed Circuit Board

    TH-L50BL6M 12 Printed Circuit Board Model No. : TH-L50BL6M A-Board (Top Component Side)
  • Page 51 Model No. : TH-L50BL6M A-Board (Bottom Component Side)
  • Page 52 Model No. : TH-L50BL6M GK-Board...
  • Page 53 Model No. : TH-L50BL6M K-Board...
  • Page 54 Model No. : TH-L50BL6M LD-Board (Top Component Side)
  • Page 55 Model No. : TH-L50BL6M LD-Board (Bottom Component Side)
  • Page 56 Model No. : TH-L50BL6M P-Board (Top Component Side)
  • Page 57 Model No. : TH-L50BL6M P-Board (Bottom Component Side)

  • Page 58: Exploded View And Replacement Parts List

    TH-L50BL6M 13 Exploded View and Replacement Parts List Model No. : TH-L50BL6M Parts Location...
  • Page 59 Model No. : TH-L50BL6M Packing Exploded View 1...
  • Page 60 Model No. : TH-L50BL6M Packing Exploded View 2...
  • Page 61 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks CAPACITORS C2000 F1G1A105A047 C 1UF 10V C2009 F1G1H1020008 C 1000PF 50V C2012 F1G1E103A059 C 0.01UF 25V C2017 F1G1H1020008 C 1000PF 50V C2023 F1G1C104A077 C 0.1UF 16V...
  • Page 62 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C5400 F1K1V106A010 C 10UF, 25V C5401 F1K1V106A010 C 10UF, 25V C5402 F1G1C104A077 C 0.1UF 16V C5403 F1J0J2260004 C 22 UF 6.3 V C5404 F1J0J2260004 C 22 UF 6.3 V...
  • Page 63 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C7208 F1J1H104A902 C 0.1UF, 50V C7209 ECWFD2W155KC C 1.5UF , 240V C7213 F2A2W6800013 C 68UF , 450V C7214 F1J1H103A900 C 0.01UF, 50V C7215 F2A2W6800013 C 1.5UF , 240V...
  • Page 64 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8038 F1G1C104A077 C 0.1UF 16V C8039 F1G1A105A047 C 1UF 10V C8040 F1G1A105A047 C 1UF 10V C8041 F1J0G2260001 C 22 UF 4 V C8042 F1G1C104A077 C 0.1UF 16V...
  • Page 65 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8760 F1G1C104A077 C 0.1UF 16V C8764 F1G1A105A047 C 1UF 10V C8765 F1H0J4750004 C 4.7UF, 16V C8850 F1H0J4750004 C 4.7UF, 16V C8851 F1H0J4750004 C 4.7UF, 16V...
  • Page 66 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks D7402 B0JBSL000065 DIODE D7404 DA2J10100L DIODE D7405 DA2J10100L DIODE D7408 B0JDSG000009 DIODE D7409 B0JDSG000009 DIODE D7411 DA2J10100L DIODE D7502 B0JCPE000051 DIODE D8716 B0ACGM000001...
  • Page 67 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks L6762 J0JYC0000464 BEAD CORE L6763 G1CR27JA0097 COIL L6765 G1C82NJ00010 COIL L6772 G1CR27JA0097 COIL L6773 G1CR27JA0097 COIL L6774 G1CR27JA0097 COIL L6776 G1CR27JA0097 COIL L6777...
  • Page 68 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks Q9808 B1ABBE000003 TRANSISTOR Q9809 B1ABPF000011 TRANSISTOR Q9810 B1ABPF000011 TRANSISTOR RESISTORS R0900 D0GA473JA039 M 47KOHM J. 1/10W R0901 D0GA332JA023 M 3.3KOHM, J,1/16W R0902 D0GA332JA023 M 3.3KOHM, J,1/16W...
  • Page 69 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R3053 D0GA333JA023 M 33KOHM,J,1/16W R3054 D0GA333JA023 M 33KOHM,J,1/16W R3056 D0GA473JA039 M 47KOHM J. 1/10W R3058 D0GA101JA039 M 100OHM ,J, 1/16W R3063 D0GA103JA039 M 10KOHM,J,1/16W...
  • Page 70 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R5178 D0GA473JA039 M 47KOHM J. 1/10W R5179 D0GA102JA039 M 1KOHM .J. 1/16W R5203 D0GA473JA039 M 47KOHM J. 1/10W R5204 D0GA822JA023 M8.2KOHM, J,1/16W R5207...
  • Page 71 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R7240 D0GF225JA048 M 2.2MOHM ,J, 1/16W R7241 D0GF225JA048 M 2.2MOHM ,J, 1/16W R7242 D0GF225JA048 M 2.2MOHM ,J, 1/16W R7243 D0GF225JA048 M 2.2MOHM ,J, 1/16W...
  • Page 72 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R8218 D0GA101JA039 M 100OHM ,J, 1/16W R8219 D1BA2400A023 M 240 OHM,F.1/16 W R8220 D1BA2400A023 M 240 OHM,F.1/16 W R8230 D1BA1001A023 M 1 KOHM,F.1/16 W...
  • Page 73 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R9803 D0GD221JA052 M 220 OHM,J 1/8W R9804 D0C12R2JA104 M 2.2OHM ,J, 1W R9806 D0GD153JA052 M 15KOHM,J,1/8W R9807 D0GD623JA052 M 62KHM ,J, 1/8W R9808 D0GD822JA052 M 8.2KOHM,J,1/8W...
  • Page 74 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks JA13 D0GDR00J0004 CHIP RESISTOR D0GDR00J0004 CHIP RESISTOR JA21 D0GDR00J0004 CHIP RESISTOR JA56 D0GFR00J0005 CHIP RESISTOR JA57 D0GFR00J0005 CHIP RESISTOR D0GDR00J0004 CHIP RESISTOR D0GDR00J0004...
  • Page 75 Model No. : TH-L50BL6M Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks Exploded View K2CT2YY00091 AC CORD L0EYAA000026 SPEAKER UNIT L5EDDYY00474 LCD PANEL N2QAYB000834 REMOTE TRANSMITTER N5HBZ0000101 WI FI DONGLE TBL5ZX05511 PEDESTAL ASSY TBL5ZX06671 STAND MTG ASSY...

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