Panasonic TH-L55ET5R Service Manual
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Panasonic TH-L55ET5R Service Manual

Panasonic TH-L55ET5R 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. Contents of adjustment mode --------------------- 9
5.1.2. How to exit---------------------------------------------- 9
5.2. SRV-TOOL -------------------------------------------------10
5.2.1. How to access ----------------------------------------10
5.2.2. Display of SOS History -----------------------------10
5.2.3. POWER ON TIME/COUNT -----------------------10
Model No.
Chassis:
Destination:
PAGE
5.2.4. Exit ------------------------------------------------------ 10
5.2.5. Self Check Mode ------------------------------------ 11
5.2.6. Hotel Mode Adjustment ---------------------------- 11
5.2.7. Hotel Mode-------------------------------------------- 11
6 Troubleshooting Guide --------------------------------------- 12
6.1. Check of the IIC bus lines------------------------------ 12
6.1.1. How to access --------------------------------------- 12
6.1.2. Exit ------------------------------------------------------ 12
6.1.3. Screen display --------------------------------------- 12
6.2. Power LED Blinking timing chart --------------------- 13
6.3. No Power--------------------------------------------------- 13
7.1. Speaker & Screw Fixing -------------------------------- 14
7.2. LCD Panel Preparation 1 ------------------------------ 15
7.3. LCD Panel Preparation 2 ------------------------------ 16
7.4. LED Panel Assembly------------------------------------ 17
7.5. Barrier and PCB Fixing --------------------------------- 18
7.6. EMI - Sticking Sponge ---------------------------------- 19
7.7. Fixing Bottom Metal ------------------------------------- 20
7.8. Back Cover Screw --------------------------------------- 21
ORDER NO. MTV1207183CE
TH-L55ET5R
LA35
IRAN
© Panasonic Corporation 2012. Unauthorized
copying and distribution is a violation of law.
LED TV
PAGE

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Summary of Contents for Panasonic TH-L55ET5R

  • Page 1: Table Of Contents

    ORDER NO. MTV1207183CE LED TV TH-L55ET5R Model No. Chassis: LA35 Destination: IRAN TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions----------------------------------------------- 3 5.2.4. Exit ------------------------------------------------------ 10 1.1. General Guidelines---------------------------------------- 3 5.2.5. Self Check Mode ------------------------------------ 11 1.1.1. Leakage Current Cold Check---------------------- 3 5.2.6.
  • Page 2 TH-L55ET5R 8 Measurements and Adjustments -------------------------- 22 8.1. Voltage chart of A-board-------------------------------- 22 9 Block Diagram --------------------------------------------------- 23 9.1. Main Block Diagram ------------------------------------- 23 9.2. Detailed Block Diagram (1/2)-------------------------- 24 9.3. Detailed Block Diagram (2/2)-------------------------- 25 10 Wiring Connection Diagram --------------------------------- 26 10.1.

  • Page 3: Safety Precautions

    TH-L55ET5R 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-L55ET5R 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-L55ET5R 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-L55ET5R 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 K BOARD LED/RM/CATS Repairable GK BOARD Function SW for LGD panel Repairable...

  • Page 7: Specifications

    TH-L55ET5R 4 Specifications Power Source AC 220-240 V, 50 / 60 Hz Power Consumption Power Rating 170 W Standby Condition 0.2 W Display panel Panel system IPS LED backlight Liquid Crystal Display Visible screen size (diagonal) 139 cm 2,073,600 (1,920 (W)  1,080 (H)) Number of pixels Dimensions (W ...
  • Page 8 TH-L55ET5R Connection Terminals RCA PIN Type  2 AV1 IN AUDIO L-R 0.5 V[rms] RCA PIN Type  1 1.0 V[p-p] (75 ) VIDEO RCA PIN Type  2 AUDIO OUT AUDIO L-R 0.5 V[rms] (high impedance) RCA PIN Type  2...

  • Page 9: Service Mode

    TH-L55ET5R 5 Service Mode 5.1. How to enter into Service Mode While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds. Contents of adjustment mode 5.1.1. • Value is shown as a hexadecimal number.

  • Page 10: Srv-Tool

    TH-L55ET5R 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 11: Self Check Mode

    TH-L55ET5R 5.2.5. Self Check Mode 1. Press the ‘MENU’ button (on the remote control) and the ‘VOL DOWN’ button on the LCD panel. 2. Press ON/OFF button on the panel to Exit. 5.2.6. Hotel Mode Adjustment 1. Press the ‘VOLUME DOWN’ button on the TV panel and simultaneously press the INPUT button on the remote control 3 times to enter Hotel Mode.

  • Page 12: Troubleshooting Guide

    TH-L55ET5R 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 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 13: Power Led Blinking Timing Chart

    TH-L55ET5R 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 14: Disassembly And Assembly Instructions

    TH-L55ET5R 7 Disassembly and Assembly Instructions 7.1. Speaker & Screw Fixing 1. Fix vesa metal at LCD panel. 2. Fix key button assembly. 3. Fix screw at P & A print, speaker bracket wifi bracket, vesa metal and key button.

  • Page 15: Lcd Panel Preparation

    TH-L55ET5R 7.2. LCD Panel Preparation 1 1. Stick shading sheet at LCD panel Top. 2. Stick shading plate at top corner (left and right). 3. Stick black tape at bottom panel. DESCRIPTION REMARK PC SHADING SHEET 60 mm  3 pcs...

  • Page 16: Lcd Panel Preparation

    TH-L55ET5R 7.3. LCD Panel Preparation 2 1. Stick gasket at LCD panel. 2. Stick pet tape at panel barcode. DESCRIPTION REMARK PC GASKET t8*W10*L=20 PC GASKET t5*W10*L=30 PC GASKET t15*W15*L=25 PC GASKET t5.0×w10×L10 70 mm  1 pcs 0.91 PC PET TAPE...

  • Page 17: Led Panel Assembly

    TH-L55ET5R 7.4. LED Panel Assembly 1. Fix led panel ass'y and led bracket ass'y. 2. Insert wire into K print. DESCRIPTION PC LED PANEL ASSY PC LED BRACKET ASSY...

  • Page 18: Barrier And Pcb Fixing

    TH-L55ET5R 7.5. Barrier and PCB Fixing 1. Stick barrier p pcb at LCD panel. 2. Fix metal ch frame r at LCD panel. 3. Fix Sp bracket. 4. Fix metal av bracket first before fix metal av bracket bottom. 5. Fix Wifi metal at cabinet.

  • Page 19: Emi - Sticking Sponge

    TH-L55ET5R 7.6. EMI - Sticking Sponge Stick sponge at LVDS wire. PART NUM DESCRIPTION SPONGE (t3  W25  L50) TMK4GG062 SPONGE (t3  W25  L85) TMK4GG063 SPONGE (t3  W22  L22) TMK4GG064 SPONGE (t3  W20  L30) TMK4GG047 SPONGE (t3 ...

  • Page 20: Fixing Bottom Metal

    TH-L55ET5R 7.7. Fixing Bottom Metal 1. Stick al+pet tape at FFC LVDS. 2. Fix bottom metal and bottom cover. 3. Stick rubber btm cover at bottom cover. 4. Fix screw at vesa metal and bottom metal. PART NUM DESCRIPTION REMARK...

  • Page 21: Back Cover Screw

    TH-L55ET5R 7.8. Back Cover Screw 1. Stick felt at wifi and fix wifi dongle back cover. 2. Fix screw at back cover. 3. Fix M6-cap at back cover. NO QTY UOM DESCRIPTION REMARK PC SCREW(BC21/BTM_COVER2/WIFI1) 10 ± 2 Kgf.cm PC SCREW(BC21/BTM_COVER2/WIFI1) 10 ±...

  • Page 22: Measurements And Adjustments

    TH-L55ET5R 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 SUB1.1V TP8100 1.10V - 1.22V SUB1.5V TP8101 1.435V - 1.585V...

  • Page 23: Block Diagram

    TH-L55ET5R 9 Block Diagram 9.1. Main Block Diagram MAIN NAND NAND FLASH SD CARD DATA SD IF IFD_OUT SD CARD SLOT TUNER SIF_OUT SD3.3V DDR3 SUB5V Peaks V/Y/PB/PR SUB1.1V PEAKS_EEPROM V/COMP SUB1.5V OVP DET SUB3.3V SUB_AI_3.3V USB5V A-OUT A_OUT SUB9V...

  • Page 24: Detailed Block Diagram (1/2)

    TH-L55ET5R 9.2. Detailed Block Diagram (1/2) JK3008 JK3001 JK3005 JK3051 PC IN MAIN HEADPHONES AUDIO OUT POWER IC7301, IC7502 STB6V Q7301, IC7201, 5.8VS Q7302 T7201, T7301 D7407 PA7403 D7102 Q7201,3 5.8VS RECTIFIER P15V CONVERTER Q7403 D7408,9 PA7402 +16V CF7101,2 +16V...

  • Page 25: Detailed Block Diagram (2/2)

    TH-L55ET5R 9.3. Detailed Block Diagram (2/2) CN8660 SPEAKER_R SPEAKER_L SD CARD D3006 JK8450 JK8451 JK8452 JK8600 JK4701 JK4700/A JK4702 JK4703/A FACTORY DIGITAL ANTENNA/ MAIN USB1 USB2 USB3 WiFi ETHERNET AUDIO OUT CABLE IN HDMI2 HDMI1 HDMI3 HDMI4 CN0100 DMC_IIC0 IIC0...

  • Page 26: Wiring Connection Diagram

    TH-L55ET5R 10 Wiring Connection Diagram 10.1. Wire Dressing 1 1. Insert all connector. 2. Stick black tape for wire dressing. 3. Insert clamper at bottom metal and dressing. 4. Fix usb cable bracket. DESCRIPTION REMARK PC SPACER(P_PCB) 70 mm  13 pcs 0.91 PC PET TAPE...

  • Page 27: Wire Dressing

    TH-L55ET5R 10.2. Wire Dressing 2 Detail of dressing.

  • Page 28: Wire Dressing

    TH-L55ET5R 10.3. Wire Dressing 3 Detail of dressing.

  • Page 29: Schematic Diagram

    TH-L55ET5R 11 Schematic Diagram Model No. : TH-L55ET5R A-Board (1/14)
  • Page 30 Model No. : TH-L55ET5R A-Board (2/14)
  • Page 31 Model No. : TH-L55ET5R A-Board (3/14)
  • Page 32 Model No. : TH-L55ET5R A-Board (4/14)
  • Page 33 Model No. : TH-L55ET5R A-Board (5/14)
  • Page 34 Model No. : TH-L55ET5R A-Board (6/14)
  • Page 35 Model No. : TH-L55ET5R A-Board (7/14)
  • Page 36 Model No. : TH-L55ET5R A-Board (8/14)
  • Page 37 Model No. : TH-L55ET5R A-Board (9/14)
  • Page 38 Model No. : TH-L55ET5R A-Board (10/14)
  • Page 39 Model No. : TH-L55ET5R A-Board (11/14)
  • Page 40 Model No. : TH-L55ET5R A-Board (12/14)
  • Page 41 Model No. : TH-L55ET5R A-Board (13/14)
  • Page 42 Model No. : TH-L55ET5R A-Board (14/14)
  • Page 43 Model No. : TH-L55ET5R GK-Board...
  • Page 44 Model No. : TH-L55ET5R K-Board...
  • Page 45 Model No. : TH-L55ET5R P-Board (1/2)
  • Page 46 Model No. : TH-L55ET5R P-Board (2/2)

  • Page 47: Printed Circuit Board

    TH-L55ET5R 12 Printed Circuit Board Model No. : TH-L55ET5R A-Board (Top Component Side)
  • Page 48 Model No. : TH-L55ET5R A-Board (Bottom Component Side)
  • Page 49 Model No. : TH-L55ET5R K-Board...
  • Page 50 Model No. : TH-L55ET5R GK-Board...
  • Page 51 Model No. : TH-L55ET5R P-Board (Top Component Side)
  • Page 52 Model No. : TH-L55ET5R P-Board (Bottom Component Side)

  • Page 53: Exploded View And Replacement Parts List

    TH-L55ET5R 13 Exploded View and Replacement Parts List Model No. : TH-L55ET5R Parts Location...
  • Page 54 Model No. : TH-L55ET5R Packing Exploded View 1...
  • Page 55 Model No. : TH-L55ET5R Packing Exploded View 2...
  • Page 56 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks CAPACITORS C1958 F1G1E1030005 C 0.01UF 25V C2000 F1G1A105A047 C 1UF 10V C2014 F1K1E106A134 C 10UF, 25V C2023 F1G1C104A077 C 0.1UF 16V C2802 F1G1C1030008 C 0.01UF 16V...
  • Page 57 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C5318 F1G1H182A830 C 1800PF 50V C5319 F1K1E106A134 C 10UF, 25V C5320 F1K1E106A134 C 10UF, 25V C5321 F1K1E106A134 C 10UF, 25V C5322 F1K1E106A134 C 10UF, 25V...
  • Page 58 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C7302 F1J1H473A835 C 0.047UF, 50V C7303 F1J1H104A902 C 0.1UF, 50V C7304 F1A3A221A060 C 220PF 1KV C7305 F1J1H104A902 C 0.1UF, 50V C7306 F1J1H104A902 C 0.1UF, 50V...
  • Page 59 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8207 F1J1A106A087 C 10UF, 10V C8208 F1G1C104A077 C 0.1UF 16V C8210 F1G1C104A077 C 0.1UF 16V C8212 F1G1C104A077 C 0.1UF 16V C8215 F1G1C104A077 C 0.1UF 16V...
  • Page 60 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C8764 F1J1A475A039 C 4.7UF, 10V C8765 F1J1A475A039 C 4.7UF, 10V C8850 F1G1E1030005 C 0.01UF 25V C8900 F1G1C104A077 C 0.1UF 16V C8901 F1G1C104A077 C 0.1UF 16V...
  • Page 61 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks C9255 F1G1A104A069 C 0.1UF 10V C9256 F1G1A104A069 C 0.1UF 10V C9259 F1G1A104A069 C 0.1UF 10V C9260 F1G1A104A069 C 0.1UF 10V C9261 F1G1A104A069 C 0.1UF 10V...
  • Page 62 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks D7217 B0JAME000091 DIODE D7219 B0BC02500002 DIODE D7301 DZ2J039M0L DIODE D7302 B0HAGQ000001 DIODE D7303 DZ2J039M0L DIODE D7304 B0HAGQ000001 DIODE D7305 B0ADCK000001 DIODE D7306 B0BC02500002...
  • Page 63 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks L3113 J0JYC0000156 INDUCTOR L3116 J0JYC0000156 INDUCTOR L3119 J0JYC0000156 INDUCTOR L3120 J0JYC0000156 INDUCTOR L4901 G1C150MA0533 INDUCTOR L4902 G1C150MA0533 INDUCTOR L4903 G1C150MA0533 INDUCTOR L4904 G1C150MA0533...
  • Page 64 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks Q7203 B1CERR000057 TRANSISTOR Q7301 B1CFRR000018 TRANSISTOR Q7302 B1CFRR000018 TRANSISTOR Q7303 B1ADCE000022 TRANSISTOR Q7401 B1ABCF000231 TRANSISTOR Q7402 B1CHRE000015 TRANSISTOR Q7403 B1CHRE000015 TRANSISTOR Q9350 B1ADCE000022...
  • Page 65 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R2853 D1BD3091A066 M 3.09KOHM,J.1/8 W R2854 D1BD6041A066 M 6.04KOHM,J.1/8 W R2855 D1BD1692A066 M 16.9KOHM,F.1/8W R3101 D0GA472JA023 M 4.7KOHM, J,1/16W R3102 D0GA472JA023 M 4.7KOHM, J,1/16W...
  • Page 66 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R4747 D0GA680JA023 M 68 OHM, J,1/16W R4748 D0GA680JA023 M 68 OHM, J,1/16W R4749 D0GA680JA023 M 68 OHM, J,1/16W R4750 D0GA680JA023 M 68 OHM, J,1/16W...
  • Page 67 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R5318 D1BA1402A023 M 14KOHM,F. 1/16 W R5319 D0GA103JA023 M10KOHM, J.1/16 W R5320 D0GA103JA023 M10KOHM, J.1/16 W R5400 D0GAR00J0005 M 0 OHM, 1/16W R5401 D1BA2202A023 M 22KOHM,F.
  • Page 68 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R7322 D0GD100JA059 M 10 OHM,J,1/4W R7323 D0GD223JA052 M 22KOHM,J,1/8W R7324 D0GD223JA052 M 22KOHM,J,1/8W R7401 D0GD102JA052 M 1.0KOHM,J,1/8W R7402 D0GD102JA052 M 1.0KOHM,J,1/8W R7403 D0GD472JA052 M 4.7KOHM,J,1/8W...
  • Page 69 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R8455 D0GA103JA023 M10KOHM, J.1/16 W R8457 D1BA1822A014 M 18.2KOHM,F.1/16 W R8458 D1BA3742A014 M 37.4KOHM,F. 1/16 W R8459 D1BA3742A014 M 37.4KOHM,F. 1/16 W R8469 D0GA103JA023 M10KOHM, J.1/16 W...
  • Page 70 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R8853 D0GA182JA023 M 1.8KOHM, J,0.063W R8854 D0GA102JA023 M1KOHM, J.1/16 W R8858 D0GA473JA023 M 47KOHM, J,1/16W R8859 D0GA103JA023 M10KOHM, J.1/16 W R8870 D0GA473JA023 M 47KOHM, J,1/16W...
  • Page 71 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks R9264 D0GA220JA023 M22 OHM, J.1/16 W R9265 D0GA220JA023 M22 OHM, J.1/16 W R9266 D0GA220JA023 M22 OHM, J.1/16 W R9267 D0GA220JA023 M22 OHM, J.1/16 W...
  • Page 72 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks JK4701 K1FY119E0049 CONNECTOR JK4702 K1FY119E0049 CONNECTOR JK4703A K1FY119E0050 AV TERMINAL JK7101 K2AAYB000009 AV TERMINAL JK8450 K1FY104B0081 AV TERMINAL JK8451 K1FY104B0081 AV TERMINAL JK8452 K1FY104B0081...
  • Page 73 Model No. : TH-L55ET5R Parts List Ref. Change Safety Part No. Part Name & Description Q'ty Remarks Exploded View K2CQ2YY00107 AC CORD K2KYYYY00204 AV CABLE COMPONENT K2KYYYY00205 AV CBVS CABLE L0EYAA000006 SPEAKER L0EYAA000007 SPEAKER L5EDDYY00368 LCD PANEL N2QAYB000585 REMOTE TRANSFORMER...

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