Panasonic TX-L32X20B Service Manual

Panasonic TX-L32X20B Service Manual

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Service Manual
Specifications
Power Source:
Rated Power Consumption:
Stand-by Power Consumption: 0.3W (Without monitor out recording)
Aerial Impedance:
Receiving System:
220-240V AC, 50Hz
93W
13W (With monitor out recording)
75Ω unbalanced, Coaxial Type
X20B
PAL-I
PAL-525/60 (AV only)
DVB-T Digital terrestrial services via UHF aerial input
M.NTSC (AV only)
NTSC (AV only)
X20E, L
PAL-I/H, B/G, D/K,
SECAM B/G, D/K, L/L'
PAL-525/60 (AV only)
M.NTSC (AV only)
NTSC (AV only)
DVB-T
Digital terrestrial services (MPEG2 and MPEG4-AVC
DVB-C
Digital cable services (MPEG2 and MPEG4-AVC
Countries that DVB-C is available: Germany, Switzerland, Denmark, Sweden,
Norway, Finland, Netherlands
Colour LCD Television
GLP25 Chassis
(H.264)
ORDER No. PCZ1003025CE
TX-L32X20B
TX-L32X20E
TX-L32X20L
)
(H.264)
)
© Panasonic Corporation 2010.
Unauthorized copying and
distribution is a violation of law.

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Summary of Contents for Panasonic TX-L32X20B

  • Page 1 Digital terrestrial services (MPEG2 and MPEG4-AVC (H.264) DVB-C Digital cable services (MPEG2 and MPEG4-AVC (H.264) Countries that DVB-C is available: Germany, Switzerland, Denmark, Sweden, Norway, Finland, Netherlands © Panasonic Corporation 2010. Unauthorized copying and distribution is a violation of law.
  • Page 2 Receiving Chanels: X20B X20E, L UHF E21-E68 VHF E2-E12 VHF H1-H2 (ITALY) VHF A-H (ITALY) VHF R1-R2 VHF R3-R5 VHF R6-R12 UHF E21-E69 CATV (S01-S05) CATV S1-S10 (M1-M10) CATV S11-S20 (U1-U10) CATV S21-S41 (Hyperband) VHF A-J (IRELAND) Aerial - Rear: X20B X20E, L VHF/UHF...
  • Page 3 Dimensions: Height: Width: Depth: Including TV stand 551mm 798mm 217mm TV set only 511mm 798mm 83mm Mass: Including TV stand 11.0kg TV set only 9.5kg Specifications are subject to change without notice. Mass and dimensions shown are approximate. Warning This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potencial dangers in attempting to service a product.
  • Page 4: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ........... 5 HOTEL MODE ............18 GENERAL GUIDE LINES........5 DATA COPY BY SD CARD........19 TOUCH – CURRENT CHECK....... 5 DATA COPY FROM TV SET TO SD CARD ..... 20 PREVENTION OF ELECTROSTATIC DISCHARGE DATA COPY FROM SD CARD TO TV SET ..... 21 (ESD) TO ELECTROSTATICALLY SENSITIVE (ES) OPTION BYTES DESCRIPTION ......
  • Page 5: Safety Precautions

    Safety Precautions General Guide Lines 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. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.
  • Page 6: Prevention Of Electrostatic Discharge

    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"...
  • Page 7: About Lead Free Solder (Pbf)

    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 8: Applicable Signals

    Applicable Signals Applicable input signal. Component (Y, Pb, Pr), HDMI Signal name COMPONENT HDMI 525 (480) / 60i 525 (480) / 60p 625 (576) / 50i 625 (576) / 50p 750 (720) / 60p 750 (720) / 50p 1,125 (1,080) / 60i 1,125 (1,080) / 50i 1,125 (1,080) / 60p 1,125 (1,080) / 50p...
  • Page 9: Service Hints

    Service Hints How to remove the backcover Lay the main unit face down. (see Fig.5) Fig.5 Remove the 4 fixing screws and the pedestal assembly. (see Fig.6) SCREWS Fig.6 Remove the 17 fixing screws and the backcover. (see Fig.7) SCREWS SCREWS Fig.7...
  • Page 10: Chassis Board Layout

    Chassis Board Layout G-UNIT P-UNIT A-BOARD V-BOARD Board Name Function A-Board AV Terminal, HDMI, Digital Audio Out, TV tuner, PC,SD Card, DVB-T/C Dem, sLD, AV Switch ,EEPROM, Flash Memory, Speaker out, TCON GAMMA DAC V-Board Remote Receiver, Power and Timer LED, C.A.T.S. G-Unit Side AV Terminal P-Unit...
  • Page 11: Technical Description

    3 seconds. TV will be forced to the factory shipment setting after this SELF CHECK. Model and Keys: Keys Model No. One-to_one CI PLUS DTCP-IP (for USB Rec.) TX-L32X20B None None None TX-L32X20E None None TX-L32X20L None...
  • Page 12: Setting Inspection

    Setting Inspection Voltage Confirmation Confirm the following voltages: A board Description Test point Position Voltage SUB1.8V TP5601 L5601 1.75V – 1.87V SUB1.2V TP5600 L5600 1.18V – 1.3V SUB3.3V TP5602 L5604 3.18V – 3.4V SUB5V TP5200 C5203 4.86V – 5.13V SUB9V TP5220 IC5220, pin 1 8.82V –...
  • Page 13: Self Check

    Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To enter Self-Check mode, keep pressing the down (-/v) button on the TV set and press the STATUS button on the remote control. To exit Self Check, switch off the TV set at the power button. TX-L32X20B 32HD Panasonic 2010LCD Self Check Complete...
  • Page 14: Power Led Blinking Timing Chart

    Power LED blinking timing chart Subject Information of LED Flashing timing chart. Contents When 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 number of blinking of the Power LED on the front panel of the unit. Blinking Blinking timing Contents...
  • Page 15: Service Mode Function

    Service Mode Function MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Service Menu How to enter SERVICE While pressing (-/v) button on the TV unit, press on the remote control for 3 times within 2 seconds.
  • Page 16: Service

    SERVICE SERVICE Peaks SOFT 1.012 OPTION 1 1c Key Command ADJUST Peaks EEP 01.01.0005 OPTION 2 ee S e r v i c e 1 WB-ADJ LSI PACKAGE 0.025 OPTION 3 01 OPTION LSI DATA 1.00.00 OPTION 4 00 • Press the 3/4 button to change the adjustment values or function.
  • Page 17: Service Tool Mode

    Service Tool Mode How to access Select [SRV-TOOL] in Service Mode. Press [OK] button on the remote control. SRV-TOOL Display of TD2Microcode version TD2Microcode:005a0910 Flash ROOM: AD – F1 Display of Flash ROM maker code POWER ON TIME/COUNT PTCT:00.00.00.00.00 Time 00051:30 On/Off 0000042 Display of SOS History Press [MUTE] button (3sec)
  • Page 18: Hotel Mode

    Hotel Mode 1. Purpose Restrict a function for hotels. 2. Access command to the Hotel mode setup menu. In order to display the Hotel mode setup menu, please enter the following command (within 2 second). [TV] : Vol.[Down] + [REMOTE] : AV (3 times) Then, the Hotel mode setup menu is displayed.
  • Page 19: Data Copy By Sd Card

    Data Copy by SD Card Purpose a) Board replacement (Copy the data when exchanging A-board): When axchanging A-board, the data in original A-board can be copied to SD card and then copy to new A-board. Following data can be copied. (Before exchanging) User setting data Copy to SD card...
  • Page 20: Data Copy From Tv Set To Sd Card

    Data Copy from TV set to SD Card Turn on the TV set. Insert SD card with a startup file (pwd.file) to SD slot. On-screen Display will be appeared according to the startup file automatically. 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 SD card.
  • Page 21: Data Copy From Sd Card To Tv Set

    Data Copy from SD Card to TV set Turn on the TV set. Insert Sd card with Data to SD slot. On-screen Display will be appeared according to the Data folder automatically. 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 SD card to TV set.
  • Page 22: Option Bytes Description

    Option Bytes Description OPTION1 ATP Search speed Slow (1) / Fast (0) TEXT Ch Refresh ON (1) / OFF (0) ID-1 ON (1) / OFF (0) Macrovision Auto-judge ON (1) / OFF (0) Surround enable low bit ON (1) / OFF (0) Surround enable high bit ON (1) / OFF (0) Pre Emphasis...
  • Page 23: Adjustment Method

    Adjustment Method Sub-Contrast/White Balance Adjustment Instrument Name Connect to Remarks Remote controller Correlation can be also taken by LCD WB meter (Minolta CA-210 or equivalent) CS-1000A or equivalent Comunication jig Computer for external control Procedure Remarks Let the panel standfor more than 3 hours at more than 20 °C.
  • Page 24: Wiring Diagram

    Wiring Diagram...
  • Page 25: Block Diagram

    Block Diagram SP_L SP_R TUNER Digital HDMI1 HDMI2 HDMI3 Audio Out SD CARD SLOT SERVICE TU2901A JK4700 JK4701 JK4702 JK8850 D3300 CN0100 11 9 19 20 16 A-BOARD [EXCHANGE UNIT] IIC2 40,41,42 29,30,31 36,37,38 25,26,27 IC2301 [C1AB00003230] AUDIO AMP CVBSIN4 MAIN_SND_17V P17V R5265...
  • Page 26: Parts Location

    Parts Location NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List. (UK) (CONTINENTAL)
  • Page 27 Parts Location NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.
  • Page 28: Replacement Parts List

    AUDIO VIDEO SWITCH TBL0E0122 STAND MTG ASSY IC4800 C0DBZYY00343 DC/DC CONVERTER TBM0E1709 CI SLOT COVER SHEET IC4802 C0FBBF000074 TCON GAMMA DAC TBMA353 PANASONIC BADGE IC5000 AN34042A-VF ANALOG ASIC TKP0E16001 CONNECTOR COVER IC5200 C0DBEYY00123 REGULATOR TKP0E39001 AC CORD BRACKET IC5220 C0DBGYY00895...
  • Page 29 Cct Ref Parts Number Description Cct Ref Parts Number Description D2774 EZJZ0V120JA VARISTOR Q4512 B1HFCFA00026 TRANSISTOR D2775 EZJZ0V120JA VARISTOR Q4513 B1ADCE000022 TRANSISTOR D2776 B0ACCJ000048 DIODE Q4700 B1ABCF000231 TRANSISTOR D2777 B0ACCJ000048 DIODE Q4702 B1ABCF000231 TRANSISTOR D2778 B0ACCJ000048 DIODE Q4704 B1ABCF000231 TRANSISTOR D2779 B0ACCJ000048 DIODE...
  • Page 30 Cct Ref Parts Number Description Cct Ref Parts Number Description 68 Ω L5000 J0JYC0000068 CHIP INDUCTOR R0900 D0GA680JA015 .063W 68 Ω L5001 J0JYC0000068 CHIP INDUCTOR R0901 D0GA680JA015 .063W 68 Ω L5002 J0JYC0000068 CHIP INDUCTOR R0902 EXB28V680JX .031W 68 Ω L5600 G1C2R2Z00006 SMD INDUCTOR R0903...
  • Page 31 Cct Ref Parts Number Description Cct Ref Parts Number Description 10K Ω 220 Ω R2069 ERJ2GEJ103X .063W R3012 ERJ2GEJ221X .063W 10K Ω 220 Ω R2070 ERJ2GEJ103X .063W R3013 ERJ2GEJ221X .063W 3K3 Ω 4K7 Ω R2101 D0GA332JA015 .063W R3101 D0GA472JA015 .063W 4K7 Ω...
  • Page 32 Cct Ref Parts Number Description Cct Ref Parts Number Description 100 Ω 47K Ω R3190 D0GA101JA015 .063W R4738 D0GA473JA015 .063W 100 Ω 22 Ω R3191 D0GA101JA015 .063W R4739 ERJ2GEJ220X .063W 82 Ω 68 Ω R3192 D0GA820JA015 .063W R4740 D0GA680JA015 .063W 82 Ω...
  • Page 33 Cct Ref Parts Number Description Cct Ref Parts Number Description 470 Ω 0 Ω R4940 D0GA471JA015 .063W R5500 D0GBR00Z0002 0.1W 22K Ω 820 Ω R4942 D0GA223JA015 .063W R5601 D1BB8200A087 0.1W 47K Ω 2K7 Ω R4943 D0GA473JA015 .063W R5602 D1BB2701A087 0.1W 150 Ω...
  • Page 34 Cct Ref Parts Number Description Cct Ref Parts Number Description 68 Ω 68 Ω R8406 D0GA680JA015 .063W R8484 D0GA680JA015 .063W 68 Ω 10K Ω R8407 D0GA680JA015 .063W R8485 ERJ2GEJ103X .063W 68 Ω 68 Ω R8408 D0GA680JA015 .063W R8488 D0GA680JA015 .063W 68 Ω...
  • Page 35 Cct Ref Parts Number Description Cct Ref Parts Number Description 68 Ω R8863 D0GA680JA015 .063W C2336 F1H1E104A129 S.M.CAP 100nF 10K Ω R8867 ERJ2GEJ103X .063W C2337 F1J1H474A757 S.M.CAP 470nF 33 Ω R8868 D0GA330JA015 .063W C2338 F1H1E104A129 S.M.CAP 100nF 10K Ω R8869 ERJ2GEJ103X .063W C2339...
  • Page 36 Cct Ref Parts Number Description Cct Ref Parts Number Description C3121 F2H1A101A009 ELECT 100µF C4807 F1G1H332A730 S.M.CAP 3.3nF C3122 F2H1A101A009 ELECT 100µF C4808 F1G1C104A116 S.M.CAP 100nF C3123 F1J1A106A087 S.M.CAP 10µF C4809 F1J1E105A231 S.M.CAP 1µF C3124 F1J1A106A087 S.M.CAP 10µF C4810 F1K1E225A085 S.M.CAP 2.2µF C3125...
  • Page 37 Cct Ref Parts Number Description Cct Ref Parts Number Description C5477 F1H1A105A025 S.M.CAP 1µF C8039 F1G1C104A116 S.M.CAP 100nF C5600 F1K1E106A136 S.M.CAP 10µF C8040 F1G1C104A116 S.M.CAP 100nF C5601 F1K1E106A136 S.M.CAP 10µF C8041 F1G1C104A116 S.M.CAP 100nF C5602 F1G1E682A123 S.M.CAP 6.8nF C8042 F1H0J1050013 CERAMIC 6.3V 1µF...
  • Page 38 Cct Ref Parts Number Description Cct Ref Parts Number Description C8115 F1G1C104A116 S.M.CAP 100nF K1KA04AA0190 4P CONNECTOR C8116 F1G1C104A116 S.M.CAP 100nF K1MN55BA0076 55P CONNECTOR C8117 F1G1C104A116 S.M.CAP 100nF A14-PAN K1PY55Y00001 LVDS WIRE C8118 F1J1A106A087 S.M.CAP 10µF CN0100 K1KA08AA0714 8P CONNECTOR C8119 F1G1C104A116 S.M.CAP...
  • Page 39 Cct Ref Parts Number Description Cct Ref Parts Number Description I.C.s IC8950 X24CL32X20E EEPROM SLD DIFFERENCES FOR MODEL TX--L32X20L EXPLODED VIEW A-L32X20L A P.C.B. TXASX01QTB-3 AC CORD TBM0E2107 MODEL LABEL MISCELLANEOUS COMPONENTS TBM0E9047-1 REAR AV LABEL INSTRUCTION BOOKS TQB0E0923 ENGLISH I.C.s IC8950 X24CL32X20L...
  • Page 40: Schematic Diagrams

    Schematic Diagrams IMPORTANT SAFETY NOTICE Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacturers' specified parts. NOTE RESISTOR All resistors are carbon ¼W resistor, unless marked otherwise. Unit of resistance is OHM (Ω) (k=1,000, M=1,000,000) CAPACITORS All capacitors are ceramic 50V unless marked otherwise.
  • Page 62: Conductor Views

    Conductor Views A-BOARD TNP0EA017 - TOP IC’S TRAN’S IC1101 Q2101 IC2301 Q4512 IC4800 Q4513 IC4802 Q4704 IC5000 Q5000 IC5200 Q5600 IC5220 Q5601 IC5416 Q5605 IC8001 Q8400 IC8402 Q8401 IC8921 DIODE’S D3300...
  • Page 63 A-BOARD TNP0EA017 – BOTTOM IC’S Q2301 IC2950 Q3100 IC2952 Q3101 IC3000 Q3102 IC5600 Q3103 IC5601 Q3104 IC5603 Q3105 IC5604 Q4700 IC8300 Q4702 IC8302 Q4802 IC8400 Q4803 IC8401 Q4804 IC8950 Q4805 Q4813 TRAN’S Q5053 Q2252 Q5054 Q2253 Q5055 Q2254...
  • Page 64 V-BOARD TNP8EV103 - TOP IC’S RM2500 1A SN2500 TRAN’S Q2500 Q2501 Q2504...

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