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Service Manual
Specifications
Information in brackets [ ] refers to model 47"
Power Source:
Rated Power Consumption:
Stand-by Power Consumption: 0.20W
Aerial Impedance:
Receiving System:
220-240V AC, 50 / 60Hz
119W [132W]
75 unbalanced, Coaxial Type
WT50B ( UK )
DVB-T / T2
Digital terrestrial services
DVB-S/S2
Freesat services via Satellite dish input
Receiver frequency range – 950 MHz to 2,150MHz
LNB Power and Polarisation – Vertical: +13V
22 kHz Tone – Frequency: 22kHz ± 2kHz
Symbol Rate – Max. 30MS/s
FEC Mode – 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
Demodulation – QPSK, 8PSK
Not available for DiSEqC control
PAL I
UHF E21-E68
PAL 525/60
(AV only)
M.NTSC
(AV only)
NTSC
(AV only)
LCD Television
TX-L42WT50B
TX-L47WT50B
TX-L47WT50Y
TX-LR47WT50
LA34 Chassis
(MPEG2 and MPEG4-AVC(H.264))
Horizontal: +18V
Current: Max. 500mA (overload protection)
Amplitude: 0.6V ± 0.2V
© Panasonic Corporation 2012.
Unauthorized copying and
distribution is a violation of law.
ORDER No. PCZ1204084CE
REVISION 2
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Table of Contents
Related Manuals for Panasonic TX-L42WT50B
Summary of Contents for Panasonic TX-L42WT50B
- Page 1 FEC Mode – 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 Demodulation – QPSK, 8PSK Not available for DiSEqC control PAL I UHF E21-E68 PAL 525/60 (AV only) M.NTSC (AV only) NTSC (AV only) © Panasonic Corporation 2012. Unauthorized copying and distribution is a violation of law.
- Page 2 WT50B ( Ireland ) DVB-T Digital terrestrial services (MPEG2 and MPEG4-AVC(H.264)) DVB-S/S2 Receiver frequency range – 950 MHz to 2,150MHz LNB Power and Polarisation – Vertical: +13V Horizontal: +18V Current: Max. 500mA (overload protection) 22 kHz Tone – Frequency: 22kHz ± 2kHz Amplitude: 0.6V ±...
- Page 3 Liquid Crystal Shutter Usage temperature range 0° - 40°C Battery Coin-shaped lithium battery CR2025 Operation time: Approx. 75 hours in continuous use of the battery made by Panasonic Viewing range Within 3.2m from front surface of the TV Materials Main body: Resin...
- Page 4 Dimensions: Width: Height: Depth: Including TV stand 956mm 647mm 312mm [1,066mm 708mm 335mm] TV set only 956mm 569mm 27mm [1,066mm 630mm 27mm] Mass: Including TV stand 13.5kg [16.0kg] TV set only 11.0kg [13.0kg] Design and Specifications are subject to change without notice. Mass and dimensions shown are approximate. This equipment complies with the EMC standards listed below: EN55013, EN61000-3-2, EN61000-3-3, EN55020, EN55022, EN55024 Warning...
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Page 5: Table Of Contents
CONTENTS SAFETY PRECAUTIONS ........... 6 GENERAL GUIDE LINES........6 TOUCH – CURRENT CHECK....... 6 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES ..............7 ABOUT LEAD FREE SOLDER (PBF)......8 SUGGESTED PB FREE SOLDER......8 APPLICABLE SIGNALS..........9 SERVICE HINTS ............ -
Page 6: 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 7: 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 8: 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 9: Applicable Signals
Applicable Signals Component (Y, Pb, Pr) (from AV2 terminal), HDMI Signal name COMPONENT HDMI 525 (480) / 60i,60p 625 (576) / 50i, 50p 750 (720) / 60p, 50p 1,125 (1,080) / 60i, 50i 1,125 (1,080) / 60p 1,125 (1,080) / 50p 1,125 (1,080) / 24p PC (from D-sub 15P) Applicable input signal for PC is basically compatible to VESA standard timing. -
Page 10: Service Hints
Service Hints How to remove the backcover Remove the 1 fixing screw and WIFI DONGLE. (see Fig.5) Remove the 1 fixing screw and BT DONGLE. (see Fig.5) SCREWS (1) THEC150J /2pcs/ Fig.5 Remove the 28 fixing screws, 4 caps and the backcover. (see Fig.6) SCREWS (1) THEC150J /28pcs/ (2) TKKL55352 /4pcs/... -
Page 11: Chassis Board Layout
Chassis Board Layout P-Unit A-Board LD-Board TC-Unit on panel RM-Unit K-Board LP-Board Board Name Function A-Board AV Terminal, HDMI, AV Switch, USB, USB HUB, Digital Audio Out, Tuner DVB-T/T2/C/S/S2, SD Card, CI slot, PC, Ethernet, Wireless LAN, Bluetooth, Peaks IC, Speakers out, EEPROM, Flash Memory, DDR SDRAM P-Unit Main Input, Power Supply, Key control, Power switch LD-Board... -
Page 12: Technical Description
Models and Keys: Keys Model No. One-to-One CI PLUS DTCP-IP Widevine Netflix (for USB Rec.) TX-L42WT50B TX-L47WT50B TX-L47WT50Y TX-LR47WT50 None None USB HDD Recording: General information: Digital TV programmes can be recorded in USB HDD. A One-to-One key generated in A-board by SELF CHECK binds TV and USB-HDD for communication. -
Page 13: Setting Inspection
Setting Inspection Voltage Confirmation A board Description Test point Voltage SUB1.1V TP8100 1.10V - 1.22V SUB 1.5 V TP8101 1.435V - 1.585V SUB1.8V TP8700 1.7V – 1.9V SUB3.3V TP5400 3.17V – 3.43V SUB5V TP5420 4.80V - 5.25V USB5V TP5440 4.94V – 5.40V FE1.2V TP5780 1.14V –... -
Page 14: 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-L42WT50B 42FHD Panasonic 2012LCD Self Check Complete C1B5 O.K. - Page 15 TX-LR47WT50 47FHD Panasonic 2012LCD Self Check Complete C09B O.K. PEAKS-SOFT 1.614 STBY O.K. PEAKS-EEP 01.06.0047 LSI-PACKAGE 0.014 MEM1 O.K. MODEL ID MEM2 O.K. LSI-RELEASE 1.14 03052100 AVSW O.K. STBY-SOFT 1.00.02 00020000 STBY-EEP 1.00.0015 O.K. ZWEI O.K. STBY-ROMCORR 0.00.00 O.K. ZWEI-SOFT...
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Page 16: 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 17: 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 18: Service
SERVICE SERVICE Peaks SOFT 1.614 OPTION 1 34 Key Command ADJUST Peaks EEP 01.06.0060 OPTION 2 ee S e r v i c e 1 WB-ADJ LSI PACKAGE 0.014 OPTION 3 OPTION LSI DATA 1.01.04 OPTION 4 51 SRV-TOOL STBY SOFT 1.00.02 MODEL ID 09... -
Page 19: 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 20: 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 21: Data Copy By Sd Card
Data Copy by SD Card 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 SD card and then copy to new A-board. Following data can be copied. (Before exchanging) User setting data Copy to SD card... -
Page 22: 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 23: 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 24: Option Bytes Description
Option Bytes Description OPTION1 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) Enable HDMI force reset ON (1) / OFF (0) TINT_Component_HDMI... -
Page 25: 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 26: Wiring Diagram
Wiring Diagram LCD PANEL... -
Page 27: Block Diagram (1 Of 2)
SP_L SP_R Woofer Block Diagram (1/2) JK1070 CN8660 CI SLOT SD SLOT 17,18 51,52 A-BOARD LNB_PWR SUB3.3V IC6851 FE_XRST IC6900 [EXCHANGE UNIT] DISEQC TU_1.2V/2.5V [C1AB00003807] IFAGC2 Wo- Wo+ SDA/SCL SUB1.8V [C1AB00003808] T2FEAIN_P,N DVB-T/T2/C DEM SI_3.3V 38,37 12,13,14, Parallel TS FE_1.2V/2.5V 3,4,5,8,9,12 34 35 13,14,15,16,17... - Page 28 Block Diagram (2/2) LP-BOARD K-BOARD SUB3.3V SN2800 R LED LP10 G LED STBY 3.3V STBY 3.3V SUB3.3V D2880 D2881 D2882 D2883 D2800 R LED G LED LD-BOARD LED-K16 LED-K15 LED-K14 LED-K13 LED-K12 LED-K11 LED-K10 LED-K9 10,12 14,16 LED-K8 PWMRST 64-71 LED-K7 PWM_CLK LED-K6...
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Page 29: 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) 47” 47” TMK0EA153 TMK0EA153 47” 47” + 42” TMK0EA177 TEWF383 47” + 42” TMK0EG083 47” + 42” TMK0EG081 47”... - Page 30 Parts Location NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.
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Page 31: Replacement Parts List
Replacement Parts List Important Safety Notice Components Identified by mark have special characteristics important for safety. * When replacing any of these components, use only manufacturers specified parts. In case of ordering these spare parts, please always add the complete Model-Type number to your order. RTL (Retention Time Limited) Note: The marking (RTL) indicates that the Retention Time is Limited for this item. - Page 32 Cct Ref Parts Number Description Cct Ref Parts Number Description IC8200 C3ABUY000020 DDR SDRAM D9515 DZ2J360M0L DIODE IC8201 C3ABUY000020 DDR SDRAM D9516 DZ2J360M0L DIODE IC8202 C3ABUY000020 DDR SDRAM TRANSISTORS IC8203 C3ABUY000020 DDR SDRAM Q2001 B1ADCF000194 TRANSISTOR IC8404 C0DBZYY00382 POWER SWITCH IC Q2006 B1ABCE000015 TRANSISTOR...
- Page 33 Cct Ref Parts Number Description Cct Ref Parts Number Description L6701 J0JGC0000020 COIL R0917 D0GA220JA023 .063W 22 Ω 22 Ω L6702 J0JGC0000020 COIL R0918 D0GA220JA023 .063W L6704 J0JGC0000020 COIL R0919 D0GA220JA023 .063W 22 Ω L6706 J0JGC0000020 COIL R0924 D0GA220JA023 .063W 22 Ω...
- Page 34 Cct Ref Parts Number Description Cct Ref Parts Number Description R3062 D0GA103JA023 .063W 10K Ω R4753 D1BA82R0A014 .063W 82 Ω 10K Ω 47K Ω R3063 D0GA103JA023 .063W R4763 D0GA473JA023 .063W R3101 D0GA472JA023 .063W 4K7 Ω R4764 D0GA473JA023 .063W 47K Ω R3102 D0GA472JA023 .063W...
- Page 35 Cct Ref Parts Number Description Cct Ref Parts Number Description R6704 EXB28V680JX .031W 68 Ω R8258 D0GA220JA023 .063W 22 Ω 10K Ω 22 Ω R6713 D0GB103JA072 0.1W R8259 D1HY2208A012 .063W R6715 D0GA103JA023 .063W 10K Ω R8260 D1HY2208A012 .063W 22 Ω R6723 D0GAR00J0005 .063W...
- Page 36 Cct Ref Parts Number Description Cct Ref Parts Number Description R8614 D0GA680JA023 .063W 68 Ω R8862 D0GA473JA023 .063W 47K Ω 68 Ω 47K Ω R8616 D0GA680JA023 .063W R8863 D0GA473JA023 .063W R8617 D0GA680JA023 .063W 68 Ω R8864 D0GA473JA023 .063W 47K Ω R8620 D0GA472JA023 .063W...
- Page 37 Cct Ref Parts Number Description Cct Ref Parts Number Description C3009 F1J1A106A087 S.M.CAP 10µF C4971 F2G0G101A007 ELECT 100µF C3010 F1G1C104A077 S.M.CAP 100nF C4972 F2G0G101A007 ELECT 100µF C3011 F1G1A105A047 S.M.CAP 1000nF C5000 F1G1A105A047 S.M.CAP 1000nF C3012 F1G1A105A047 S.M.CAP 1000nF C5002 F1G1A105A047 S.M.CAP 1000nF C3013...
- Page 38 Cct Ref Parts Number Description Cct Ref Parts Number Description C6725 F1G1C104A077 S.M.CAP 100nF C8205 F1G1C104A077 S.M.CAP 100nF C6733 F1G1C104A077 S.M.CAP 100nF C8206 F1G1C104A077 S.M.CAP 100nF C6735 F1J1A106A087 S.M.CAP 10µF C8207 F1J1A106A087 S.M.CAP 10µF C6740 F1J1A106A087 S.M.CAP 10µF C8208 F1G1C104A077 S.M.CAP 100nF C6746...
- Page 39 Cct Ref Parts Number Description Cct Ref Parts Number Description C8478 F1G1C104A077 S.M.CAP 100nF JK8452 K1FY104B0081 USB TERMINAL C8479 F1G1C104A077 S.M.CAP 100nF JK8600 K2LC1YYE0003 ETHERNET TERMINAL C8480 F1G1C104A077 S.M.CAP 100nF K1KA08A00506 8P CONNECTOR C8481 F1H1C105A145 S.M.CAP 1000nF K1KY20BA0394 20P CONNECTOR C8482 F1G1C104A077 S.M.CAP...
- Page 40 Cct Ref Parts Number Description Cct Ref Parts Number Description TEWF392 AL TAPE (W20XL140) TQB0E2247W SLOVAKIAN TPG0EA0040 PAPER CAP TQB0E2247X BOTCUS TPD0E22351 CUSHION BOTTOM TQB0E2247Z ESTONIAN CARTON TPC0EA13001 CARTON I.C.s CENCUS TPD0E92071 CUSHION CENTER IC8902 X24CL47WT50Y PEAKS EEP TOPCUS TPD0E12201 CUSHION TOP TERMINALS AND LINKS INSTRUCTION BOOKS...
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Page 41: 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 () (k=1,000, M=1,000,000) CAPACITORS All capacitors are ceramic 50V unless marked otherwise. -
Page 64: Conductor Views
Conductor Views A-BOARD TNPH0994 - TOP I C 9 9 8 0 R2712 CN0100 R0922 IC9980 TP8915 TP8917 R0923 C0074 TP8913 TP8912 TP8914 TP8916 L8661 A 0 8 C N 0 1 0 0 C5408 R2721 R8666 C2702 R5403 VJ5400 J K 3 8 5 1 C2703 C2704... - Page 65 A-BOARD TNPH0994 - BOTTOM TP0911 TP0909 TP0907 TP0905 TP0903 TP0901 TP0900 TP8910 TP8911 TP0912 TP0908 TP0906 TP0904 TP0902 TP0910 TP8362 TP8396 TP8665 TP8397 TP8361 TP8668 TP8360 TP8662 TP8394 TP8392 TP8663 TP8667 TP8395 TP8393 TP8404 TP8390 TP8391 TP8666 TP8350 TP8664 TP8352 TP8349 TP8389 TP8660...
- Page 66 LD-BOARD TNPA5615 - TOP S U F F I X . R9701 R9708 Q9508 Q9507 Q9506 R9702 R9709 R9703 R9710 L D 2 L D 1 L D 4 R9514 R9512 R9518 R9509 R9519 I C 9 5 0 0 R9517 L o w e r D9510...
- Page 67 LP-BOARD TNPA5645 - TOP D2880 D2881 D2882 D2883 R2884 R2885 C2880 D2884 T N P A 56 4 5 1 L P S U F F I X . LP-BOARD TNPA5645 - BOTTOM LP10...
- Page 68 K-BOARD TNPA5605 - TOP K-BOARD TNPA5605 - BOTTOM TP2802 TP2803 TP2807 D2804 R2808 R2801 D2811 D2810 D2808 R2807 C2809 R2802 C2806 C2808 C2803 D2803 R2805 T N P A 5 6 0 5 TP2801 TP2806 TP2808 TP2809 C2801 R2809 R2803 A D A B TP2800 D2806...