Panasonic TX-L42U10E Service Manual
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Panasonic TX-L42U10E Service Manual

Colour lcd television
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Service Manual

Specifications

Power Source:
Power Consumption
Stand-by Power Consumption: 0.45W (Without monitor out recording)
Aerial Impedance:
Receiving System:
Receiving Channels:
Operating Conditions:
220-240V AC, 50Hz
180W
14W (With monitor out recording)
75Ω unbalanced, Coaxial Type
PAL-I/H, B/G, D/K
SECAM B/G, D/K, L/L'
PAL-525/60 (AV only)
DVB-T (Digital terrestrial services)
DVB-C (Digital cable services)
M.NTSC (AV only)
NTSC (AV only)
VHF E2-E12
VHF A-H (ITALY)
VHF R3-R5
UHF E21-E69
CATV S1-S10 (M1-M10)
CATV S21-S41 (Hyperband)
0°C ÷ 35°C
Temperature:
Humidity: 20% ÷ 80% RH (non condensing)
Colour LCD Television
GLP24 Chassis
VHF H1-H2 (ITALY)
VHF R1-R2
VHF R6-R12
CATV (S01-S05)
CATV S11-S20 (U1-U10)
ORDER No. PCZ0906110CE
TX-L42U10E
© Panasonic Corporation 2009.
Unauthorized copying and
distribution is a violation of law.

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Summary of Contents for Panasonic TX-L42U10E

  • Page 1: Service Manual

    VHF R6-R12 UHF E21-E69 CATV (S01-S05) CATV S1-S10 (M1-M10) CATV S11-S20 (U1-U10) CATV S21-S41 (Hyperband) 0°C ÷ 35°C Operating Conditions: Temperature: Humidity: 20% ÷ 80% RH (non condensing) © Panasonic Corporation 2009. Unauthorized copying and distribution is a violation of law.
  • Page 2 Intermediate Frequency: Video/Audio Video 38.9MHz, 33.9MHz Audio 33.4MHz (B/G), 33.16MHz (A2) 33.05MHz (NICAM B/G, D/K, L’) 32.4MHz (D/K), 32.66MHz (CZ STEREO) 40.4MHz (L’), 39.75MHz (L’ NICAM) Colour 34.47MHz (PAL) 34.5MHz, 34.65MHz (SECAM) 38.3MHz, 38.15MHz (SECAM L’) Terminals: AV1 IN Video (21 pin) 1V p-p 75Ω Audio (21 pin) 500mV rms 10kΩ...

  • Page 3: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ................4 GENERAL GUIDE LINES..............4 TOUCH – CURRENT CHECK.............. 4 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES ......5 ABOUT LEAD FREE SOLDER (PBF)............6 SUGGESTED PB FREE SOLDER............6 APPLICABLE SIGNALS................7 SERVICE HINTS ..................

  • Page 4: 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 5: Prevention Of Electrostatic Discharge (Esd) To Electrostatically Sensitive (Es) Devices

    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 6: 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 7: Applicable Signals

    Applicable Signals 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 1,125 (1,080) / 24p...

  • Page 8: Service Hints

    Service Hints How to remove the backcover Remove the 17 fixing screws. (see Fig.5) SCREWS SCREWS Fig.5 How to remove the Pedestal assembly Lay the main unit face down. (see Fig.6) Fig.6 Remove the 4 fixing screws and the pedestal assembly. (see Fig.7) SCREWS Fig.7...

  • Page 9: Chassis Board Layout

    Chassis Board Layout G-BOARD P-BOARD A-BOARD V-BOARD Board Name Function A-Board Tuner, AVSW,Peaks-AVC,HDMI,CI Slot, Global Core, GENX, AV Terminal, SD Slot, Speaker out, ADV P-Board Power Supply, Main Input V-Board Remote Receiver, Cats, R/G LED, Timer LED G-Board Side AV Connector Location of Lead Wiring To find the Part Number of required wire in Replacement Parts List click on the wire name in red box.

  • Page 10: Setting Inspection

    Setting Inspection Voltage Confirmation Confirm the following voltages: A board TP No. Voltage TP2765 5.6V +/- 0.25V SUB_ TNR_6V TP2770 5.6V +/- 0.25V TP2781 TV_SOS TP5481 INVERTER_SOS TP2761 P17V TP2777 16V +/- 1V SUB_F_12V TP2782 12V +/- 1V INV_ON TP2759 2.85V +/- 2% P board TP No.

  • Page 11: 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. Panasonic 2009LCD 42FHD TX-L42U10E Self Check Complete 796E O.K.

  • Page 12: 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 13: 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 TV unit, press on the remote control for 3 times within 2 seconds.

  • Page 14: Service

    SERVICE SERVICE Peaks SOFT 1.209 OPTION 1 1c Key Command ADJUST Peaks EEP 01.00.0004 OPTION 2 ef WB-ADJ LSI DATA 0.00.03 OPTION 3 OPTION STBY SOFT 1.00.00 Model ID • STBY EEP 1.03.36 03353100 Press the 3/4 button to change the adjustment values or function. SRV-TOOL STBY ROMCOR 1.00.00...

  • Page 15: Option Bytes Description

    Option Bytes Description OPTION1 ATP Search Speed Slow (1) / Fast (0) TXT Ch Refresh On (1) / Off (0) ID-1 On (1) / Off (0) Macrovision Auto-Judge On (1) / Off (0) Surround enable low bit (*1) On (1) / Off (0) Surround enable low bit (*1) On (1) / Off (0) Pre Emphasis...

  • Page 16: 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 CS-1000A equivalent) CA-210 or equivalent Comunication jig Computer for external control Procedure Remarks Let the panel standfor more than 3 hours at more than 20 °C.

  • Page 17: Wiring Diagram

    Wiring Diagram LCD PANEL...

  • Page 18: Block Diagrams

    Video & Stereo Audio Block Diagram A-BOARD IC3001 (EXCHANGE UNIT) AV-SWITCH [C1AB00002855] MAIN RF SIGNAL CVBS AV1_V CVBS IN6 CVBSin4 CVBS/Y+C OUT AV1_VOUT SAGCVBS OUT3 HDMI1 AV1_RED AV1_GREEN IC4510 AV1_BLUE AV1_L L3IN [C1AB00003045] MAIN Y/CVBS L1OUT AV1_LOUT AUDIO VIDEO DECODER AV1_R R3IN MAIN PB/C...
  • Page 19 Power Supply Block Diagram V-BOARD A-BOARD (EXCHANGE UNIT) SUB5V SN2500 STB3.3V D2510 IC8409 IC5441 SUB3.3V IC8001-AVC BUFFER SUB9V BT30V SUB5V SUB5V STB3.3V D2500 Vout IC1101 STB3.3V PROCESSOR SUB3.3V STB3.3V MN2WS0059 STB3.3V GenX EEPROM IC8410 SUB1.2V STB3.3V SUB3.3V RM2500 BUFFER SUB1.8V AVC 2 POWER IC1100 GenX8...
  • Page 20 Control Block Diagram A-BOARD (EXCHANGE UNIT) HDIN IS1CLK S2DET2 HPD0 SUB3.3V_SENSE AV1_SLOW S2DET2 SCL0 JK8302 HPD1 MAIN9V_SENSE S2DET1 SDA0 DATA QLINK2 HPD2 DTV9V_SENSE FBOUT SD SLOT 27,94 AV1_Q_LINK SCL1 AV-SW_SDA PANEL_AGW SUB5V_SENSE IC3001 SDA1 AV-SW_SCL FBIN/01 R_LED_ON AUDIO_XRST AV1_FB [C1AB00002855] SCL2 HSIN DATA...

  • Page 21: Parts Location

    Parts Location NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.
  • Page 22 NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.

  • Page 23: Replacement Parts List

    TQB0E0818A GERMAN TBL0E0101 PEDESTAL ASSY TQB0E0818B DUTCH TBM0E1709 CI SLOT COVER SHEET TQB0E0818C ITALIAN TBM0E1844 MODEL LABEL TQB0E0818D FRENCH TBMA293 PANASONIC BADGE TQB0E0818E SPANISH TKP0E16001 CONNECTOR COVER TQB0E0818F SWEDISH TKP0E39001 AC CORD BRACKET TQB0E0818G NORWEGIAN TKP0E39101 SPEAKER BRACKET TQB0E0818H FINNISH...
  • Page 24 Cct Ref Parts Number Description Cct Ref Parts Number Description IC5441 C0DBAJB00004 REGULATOR D1003 EZJZ0V120JA VARISTOR IC5480 C1ZBZ0003986 DC/DC CONVERTER D1004 EZAEG2A50AX ESD SUPPRESSOR IC5600 C0DBAYY00480 DC/DC CONVERTER D1005 EZAEG2A50AX ESD SUPPRESSOR IC5601 C0DBAYY00480 DC/DC CONVERTER D1006 EZAEG2A50AX ESD SUPPRESSOR IC8001 MN2WS0059 PEAKS AVC...
  • Page 25 Cct Ref Parts Number Description Cct Ref Parts Number Description Q2064 2SD0601ASL TRANSISTOR L2902 J0JCC0000269 CHIP INDUCTOR Q2065 2SB0709ASL TRANSISTOR L2904 J0JCC0000269 CHIP INDUCTOR Q2500 B1ABCF000231 TRANSISTOR L2907 J0JCC0000063 CHIP INDUCTOR Q2501 B1ABCF000231 TRANSISTOR L2908 J0JCC0000063 CHIP INDUCTOR Q2503 B1ABCF000231 TRANSISTOR L3002 J0JCC0000287...
  • Page 26 Cct Ref Parts Number Description Cct Ref Parts Number Description L8304 J0JHC0000045 COIL BLM18PG121SN1D R853 ERJ6GEYJ101 S.M.CARB 0.1W 100 Ω L8501 J0JHC0000045 COIL BLM18PG121SN1D R854 D0XB106J0003 RESISTOR 10M Ω L8580 J0JHC0000075 COIL BLM21PG600SN1D R855 ERJ6GEYJ561 S.M.CARB 0.1W 560 Ω FILTERS R856 ERJ6GEYJ222 S.M.CARB...
  • Page 27 Cct Ref Parts Number Description Cct Ref Parts Number Description R0951 ERJ2GEJ680X .063W 68 Ω R2119 ERJ2GEJ105X .063W 1M Ω R0952 ERJ2GEJ680X .063W 68 Ω R2120 ERJ2GEJ473X .063W 47K Ω R0953 ERJ2GEJ680X .063W 68 Ω R2121 ERJ8GEYJ3R3V 0.25W 3R3 Ω R0954 ERJ2GEJ680X .063W...
  • Page 28 Cct Ref Parts Number Description Cct Ref Parts Number Description R3010 ERJ2GEJ104X .063W 100K Ω R3137 ERJ2GEJ221X .063W 220 Ω R3011 ERJ2GEJ104X .063W 100K Ω R3138 ERJ2GEJ221X .063W 220 Ω R3012 ERJ2GEJ101X .063W 100 Ω R3139 ERJ2GEJ221X .063W 220 Ω R3013 ERJ2GEJ101X .063W...
  • Page 29 Cct Ref Parts Number Description Cct Ref Parts Number Description R4319 ERJ2GEJ473X .063W 47K Ω R4623 ERJ2GE0R00X .063W 0 Ω R4320 ERJ2GEJ103X .063W 10K Ω R4624 ERJ2GEJ103X .063W 10K Ω R4321 ERJ2GEJ102X .063W 1K Ω R4626 D1BB2200A055 0.1W 220 Ω R4322 ERJ2GEJ103X .063W...
  • Page 30 Cct Ref Parts Number Description Cct Ref Parts Number Description R5470 ERJ2GEJ222X .063W 2K2 Ω R8078 ERJ2GEJ470X .063W 47 Ω R5474 ERJ2GE0R00X .063W 0 Ω R8081 ERJ2GEJ103X .063W 10K Ω R5475 ERJ2GEJ103X .063W 10K Ω R8082 ERJ2RKF75R0X .063W 75 Ω R5476 ERJ2GEJ153X .063W...
  • Page 31 Cct Ref Parts Number Description Cct Ref Parts Number Description R8422 ERJ2GEJ680X .063W 68 Ω R8577 ERJ2GEJ680X .063W 68 Ω R8423 ERJ2GEJ680X .063W 68 Ω R8578 ERJ2GEJ680X .063W 68 Ω R8424 ERJ2GEJ680X .063W 68 Ω R8581 ERJ2GEJ103X .063W 10K Ω R8425 ERJ2GEJ680X .063W...
  • Page 32 Cct Ref Parts Number Description Cct Ref Parts Number Description R8692 ERJ2GEJ680X .063W 68 Ω C814 ECQU2A224BN9 FILM 250V 220nF R8696 ERJ2GEJ103X .063W 10K Ω C815 ECKW3D151KBP 150pF R8697 ERJ2GEJ222X .063W 2K2 Ω C816 ECKWBE472ZER CERAMIC 250V 4.7nF R8703 ERJ2GEJ680X .063W 68 Ω...
  • Page 33 Cct Ref Parts Number Description Cct Ref Parts Number Description C1112 F1G1C104A116 S.M.CAP 100nF C2341 F1H1E104A129 S.M.CAP 100nF C1114 F1G1C104A116 S.M.CAP 100nF C2343 F1H1E104A129 S.M.CAP 100nF C1117 F1G1C104A116 S.M.CAP 100nF C2345 F1H1H223A970 S.M.CAP 22nF C1122 F1G1E103A123 S.M.CAP 10nF C2347 F1H1H223A970 S.M.CAP 22nF C1123...
  • Page 34 Cct Ref Parts Number Description Cct Ref Parts Number Description C3021 F1J1A106A043 S.M.CAP 10µF C4243 F1G1C104A116 S.M.CAP 100nF C3022 F1H1A1050032 S.M.CAP 1000nF C4250 F1H1H103A970 S.M.CAP 10nF C3023 F1G1C104A116 S.M.CAP 100nF C4251 F1H1H103A970 S.M.CAP 10nF C3024 F1H1A1050032 S.M.CAP 1000nF C4252 F2G1C470A022 ELECT 47µF C3025...
  • Page 35 Cct Ref Parts Number Description Cct Ref Parts Number Description C5464 F1H1A1050032 S.M.CAP 1000nF C8029 F1G1C104A116 S.M.CAP 100nF C5480 F1G1C103A116 S.M.CAP 10nF C8030 F1H0J1050012 S.M.CAP 6.3V 1000nF C5481 F1H1A1050032 S.M.CAP 1000nF C8031 F1H0J1050012 S.M.CAP 6.3V 1000nF C5483 F1J1A106A043 S.M.CAP 10µF C8032 F1J1A106A043 S.M.CAP...
  • Page 36 Cct Ref Parts Number Description Cct Ref Parts Number Description C8202 F1G1C104A116 S.M.CAP 100nF D3015 K7AAAY000005 OPT TERMINAL C8306 F1G1A4740003 S.M.CAP 470nF K1KA11A00124 11P CONNECTOR C8307 F1G1C104A116 S.M.CAP 100nF JK3002 K1FB121A0017 SCART TERMINAL C8309 F1G1C104A116 S.M.CAP 100nF JK3003 K1FB121A0017 SCART TERMINAL C8311 F1G1H120A731 S.M.CAP...

  • Page 37: 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 61: Conductor Views

    Conductor Views A-BOARD TNP8EA102 - TOP Q4500 IC’S IC2008 Q4514 IC2301 Q4515 IC4510 3C Q4516 IC4511 4D Q4517 IC4512 3D Q4519 IC5409 1C Q5407 IC8001 Q5408 IC8002 2D Q5431 IC8003 Q5453 IC8403 Q5461 IC8411 Q5600 Q5601 Q5602 TRAN’S Q2022 Q8200 Q4202 Q8401 Q4203...
  • Page 62 A-BOARD TNP8EA102 - BOTTOM TRAN’S IC’S Q2001 IC1100 Q2063 IC1101 Q2064 IC2902 Q2065 IC3001 Q3000 IC4513 Q3001 IC5405 Q3002 IC5441 Q3003 IC5480 Q3004 IC5600 Q3005 IC5601 Q4201 IC8004 Q4207 IC8301 Q4501 IC8302 Q4533 IC8401 Q4534 IC8404 Q4807 IC8405 Q5412 IC8408 Q5417 IC8409 Q5421...
  • Page 63 P-BOARD TNP8EP101 - TOP D809 IC’S IC802 D816 IC803 D817 IC804 D822 IC805 D824 D827 D828 TRAN’S Q802 D829 Q804 D830 Q806 D833 Q807 D834 D835 D844 DIODE’S D801 D845 D807 D846 D808...
  • Page 64 P-BOARD TNP8EP101 - BOTTOM D805 IC’S IC801 D806 D820 D821 TRAN’S Q801 D823 Q805 D825 Q808 D826 Q810 D831 Q811 D832 Q812 D836 Q813 D837 D838 D841 DIODE’S D803 D842...
  • Page 65 V-BOARD TNP8EV101 - TOP IC’S RM2500 1A TRAN’S Q2500 Q2501 Q2503 Q2504 DIODE’S D2500 D2510...

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